{"product_id":"king-cr4668sm0-25-connecting-rod-bearing-set-0-25mm-undersize-hyundai-kia-2-4l-g4kc-g4ke","title":"King CR4668SM0.25 Connecting Rod Bearing Set 0.25mm Undersize Hyundai Kia 2.4L G4KC G4KE","description":"\u003c!-- ============================================================ --\u003e\u003c!-- SECTION 1: OPENING PARAGRAPH                                 --\u003e\u003c!-- ============================================================ --\u003e\n\u003cp\u003eThe \u003cstrong\u003eKing CR4668SM0.25\u003c\/strong\u003e is a connecting rod bearing set engineered specifically for the \u003cstrong\u003eHyundai\/Kia 2.4L G4KC and G4KE (Theta\/Theta II)\u003c\/strong\u003e four-cylinder engine. \u003cstrong\u003eCR4668SM0.25\u003c\/strong\u003e is the 0.25mm undersize (0.010\") variant, designed for engines whose crankshaft connecting rod journals have been reground to the first standard undersize during an engine rebuild. This set fits a wide range of vehicles including the Hyundai Sonata, Hyundai Santa Fe, Hyundai Tucson, Kia Optima, Kia Sorento, and Kia Sportage from 2006 through 2022. If your machinist has taken 0.25mm off the rod journals, \u003cstrong\u003eCR4668SM0.25\u003c\/strong\u003e is the correct bearing size to restore proper oil clearance and protect your rebuild.\u003c\/p\u003e\n\u003c!-- ============================================================ --\u003e\u003c!-- SECTION 2: KING ENGINE BEARINGS TECHNOLOGY                   --\u003e\u003c!-- ============================================================ --\u003e\n\u003ch4\u003eKing SM-Series Technology and Construction\u003c\/h4\u003e\n\u003cp\u003eThe SM-Series designation stands for Strengthened Manganese aluminum alloy, King's strongest aluminum-based bimetal material for high-load and performance street applications. Every \u003cstrong\u003eCR4668SM0.25\u003c\/strong\u003e half-shell is built to exacting tolerances using a precision three-layer bimetal construction process.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSteel backing:\u003c\/strong\u003e High-strength steel substrate provides dimensional stability and resists deformation under peak connecting rod loads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAluminum bonding layer:\u003c\/strong\u003e Intermediate bonding layer ensures metallurgical adhesion between the steel backing and the bearing alloy for long-term durability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStrengthened Aluminum alloy face:\u003c\/strong\u003e The bearing surface uses an aluminum alloy strengthened with manganese and chromium additions, delivering higher fatigue strength than standard aluminum bearings while retaining excellent conformability and embeddability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision eccentricity:\u003c\/strong\u003e King machines a controlled eccentric profile into the bearing bore, promoting hydrodynamic oil film formation at startup and under load.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTight tolerance manufacturing:\u003c\/strong\u003e Each shell is manufactured in Kiryat Gat, Israel, on precision grinding equipment to meet or exceed OEM clearance specifications for the G4KC\/G4KE engine family.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-load street application:\u003c\/strong\u003e The SM-Series is rated for high-load street and performance use, making it appropriate for rebuilt daily drivers, sport compacts, and moderately tuned Hyundai\/Kia 2.4L engines.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLocating lug included:\u003c\/strong\u003e CR4668SM0.25 features a locating lug that indexes the shell into the connecting rod bore, preventing rotation during installation and operation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- ============================================================ --\u003e\u003c!-- SECTION 3: UNDERSTANDING BEARING UNDERSIZES                  --\u003e\u003c!-- ============================================================ --\u003e\n\u003ch4\u003eUnderstanding Bearing Undersizes: When to Use CR4668SM0.25\u003c\/h4\u003e\n\u003cp\u003eConnecting rod bearings are sized to match the diameter of the crankshaft's rod journals. Over time, journal surfaces develop wear, scoring, or out-of-round condition. During an engine rebuild, a machinist will measure the journals and, if needed, grind them to a smaller, perfectly round diameter. A new, thicker bearing is then installed to restore the correct oil clearance.\u003c\/p\u003e\n\u003cp\u003eThe 0.25mm undersize designation on \u003cstrong\u003eCR4668SM0.25\u003c\/strong\u003e means the bearing is sized for crankshaft rod journals that have been ground 0.25mm (approximately 0.010\") smaller than the original factory specification. This is the first standard undergrind, often called \"10 over\" in traditional rebuilding terminology, and it is the most commonly needed undersize when journals show minor wear.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow to determine which size you need:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHave your machinist measure each rod journal with a micrometer. Compare the reading to the factory specification for the G4KC or G4KE engine.\u003c\/li\u003e\n\u003cli\u003eIf journals are within 0.001\" of standard, use \u003cstrong\u003eCR4668SM (STD)\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eIf journals have been ground to -0.010\" (0.25mm under factory spec), use \u003cstrong\u003eCR4668SM0.25\u003c\/strong\u003e (this part).\u003c\/li\u003e\n\u003cli\u003eIf journals have been ground to -0.020\" (0.50mm under), use \u003cstrong\u003eCR4668SM0.5\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eIf journals have been ground to -0.030\" (0.75mm under), use \u003cstrong\u003eCR4668SM0.75\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eNever mix undersize bearings. Install the same undersize on all four connecting rods.\u003c\/li\u003e\n\u003cli\u003eAlways verify the final bearing clearance with Plastigage after installation before assembling the engine.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCR4668 Size Family: SM-Series and XP Race-Grade Comparison\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eKing offers the CR4668 connecting rod bearing for the Hyundai\/Kia 2.4L G4KC\/G4KE engine in multiple sizes and material grades. The SM-Series covers standard and undersize street\/performance applications. The XP-Series steps up to tri-metal construction with pMax Black DLC coating for race and high-boost use.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003cth\u003eCrankshaft Undersize\u003c\/th\u003e\n\u003cth\u003eImperial Equivalent\u003c\/th\u003e\n\u003cth\u003eSeries \/ Grade\u003c\/th\u003e\n\u003cth\u003eConstruction\u003c\/th\u003e\n\u003cth\u003eBest For\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCR4668SM\u003c\/td\u003e\n\u003ctd\u003eSTD (0mm)\u003c\/td\u003e\n\u003ctd\u003eStandard\u003c\/td\u003e\n\u003ctd\u003eSM-Series\u003c\/td\u003e\n\u003ctd\u003eBimetal (Steel + Strengthened Aluminum)\u003c\/td\u003e\n\u003ctd\u003eUnground crank, standard rebuild\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCR4668SM0.25\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.25mm under\u003c\/td\u003e\n\u003ctd\u003e0.010\" under\u003c\/td\u003e\n\u003ctd\u003eSM-Series\u003c\/td\u003e\n\u003ctd\u003eBimetal (Steel + Strengthened Aluminum)\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eFirst undergrind, minor journal wear (this part)\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCR4668SM0.5\u003c\/td\u003e\n\u003ctd\u003e0.50mm under\u003c\/td\u003e\n\u003ctd\u003e0.020\" under\u003c\/td\u003e\n\u003ctd\u003eSM-Series\u003c\/td\u003e\n\u003ctd\u003eBimetal (Steel + Strengthened Aluminum)\u003c\/td\u003e\n\u003ctd\u003eSecond undergrind, moderate journal wear\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCR4668SM0.75\u003c\/td\u003e\n\u003ctd\u003e0.75mm under\u003c\/td\u003e\n\u003ctd\u003e0.030\" under\u003c\/td\u003e\n\u003ctd\u003eSM-Series\u003c\/td\u003e\n\u003ctd\u003eBimetal (Steel + Strengthened Aluminum)\u003c\/td\u003e\n\u003ctd\u003eThird undergrind, significant journal wear\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCR4668XP\u003c\/td\u003e\n\u003ctd\u003eSTD (0mm)\u003c\/td\u003e\n\u003ctd\u003eStandard\u003c\/td\u003e\n\u003ctd\u003eXP Race-Grade\u003c\/td\u003e\n\u003ctd\u003eTri-metal (Steel + Bronze + pMax Black DLC)\u003c\/td\u003e\n\u003ctd\u003eHigh-boost, forced induction, race use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCR4668XP0.25\u003c\/td\u003e\n\u003ctd\u003e0.25mm under\u003c\/td\u003e\n\u003ctd\u003e0.010\" under\u003c\/td\u003e\n\u003ctd\u003eXP Race-Grade\u003c\/td\u003e\n\u003ctd\u003eTri-metal (Steel + Bronze + pMax Black DLC)\u003c\/td\u003e\n\u003ctd\u003eRace rebuild with first undergrind crank\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCR4668XP.026\u003c\/td\u003e\n\u003ctd\u003e+0.026mm clearance\u003c\/td\u003e\n\u003ctd\u003e+0.001\" extra oil clearance\u003c\/td\u003e\n\u003ctd\u003eXP Race-Grade\u003c\/td\u003e\n\u003ctd\u003eTri-metal (Steel + Bronze + pMax Black DLC)\u003c\/td\u003e\n\u003ctd\u003eHigh-RPM race, increased oil clearance builds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c!-- ============================================================ --\u003e\u003c!-- SECTION 5: WHAT'S INCLUDED                                   --\u003e\u003c!-- ============================================================ --\u003e\n\u003ch4\u003eWhat's Included\u003c\/h4\u003e\n\u003cp\u003eThe \u003cstrong\u003eCR4668SM0.25\u003c\/strong\u003e ships as a complete connecting rod bearing set for one four-cylinder engine. The set contains:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e8 individual half-shells\u003c\/strong\u003e (4 pairs, also described as 4 upper shells and 4 lower shells)\u003c\/li\u003e\n\u003cli\u003eEach connecting rod journal requires one upper half-shell and one lower half-shell, totaling 2 shells per cylinder\u003c\/li\u003e\n\u003cli\u003e4 cylinders x 2 shells = \u003cstrong\u003e8 pieces total\u003c\/strong\u003e for a complete connecting rod bearing replacement on the Hyundai\/Kia 2.4L G4KC\/G4KE four-cylinder engine\u003c\/li\u003e\n\u003cli\u003eAll shells include the factory-style locating lug for correct indexing in the connecting rod bore\u003c\/li\u003e\n\u003cli\u003eNo additional hardware or separate shell purchases required for a complete rod bearing replacement\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eNote: This set covers connecting rod bearings only. If you are performing a complete engine rebuild, you will also need a separate main bearing set for the G4KC\/G4KE crankshaft main journals.\u003c\/em\u003e\u003c\/p\u003e\n\u003c!-- ============================================================ --\u003e\u003c!-- SECTION 6: FITMENT TABLE                                     --\u003e\u003c!-- ============================================================ --\u003e\n\u003ch4\u003eVehicle Fitment\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eCR4668SM0.25\u003c\/strong\u003e fits the Hyundai\/Kia 2.4L G4KC and G4KE (Theta\/Theta II) inline four-cylinder engine. Confirm your engine code before ordering. This bearing set is for the 2.4L G4KC\/G4KE only and does not fit the 2.0L G4KA, the 2.4L G4KJ, or any turbocharged 2.0T variants.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eEngine\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2006\u003c\/td\u003e\n\u003ctd\u003eHyundai\u003c\/td\u003e\n\u003ctd\u003eSonata\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KC\/G4KE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2007\u003c\/td\u003e\n\u003ctd\u003eHyundai\u003c\/td\u003e\n\u003ctd\u003eSonata\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KC\/G4KE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2008\u003c\/td\u003e\n\u003ctd\u003eHyundai\u003c\/td\u003e\n\u003ctd\u003eSonata\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KC\/G4KE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009\u003c\/td\u003e\n\u003ctd\u003eHyundai\u003c\/td\u003e\n\u003ctd\u003eSonata\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KC\/G4KE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2010\u003c\/td\u003e\n\u003ctd\u003eHyundai\u003c\/td\u003e\n\u003ctd\u003eSonata\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KC\/G4KE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2011\u003c\/td\u003e\n\u003ctd\u003eHyundai\u003c\/td\u003e\n\u003ctd\u003eSonata\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KC\/G4KE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2012\u003c\/td\u003e\n\u003ctd\u003eHyundai\u003c\/td\u003e\n\u003ctd\u003eSonata\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KC\/G4KE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2013\u003c\/td\u003e\n\u003ctd\u003eHyundai\u003c\/td\u003e\n\u003ctd\u003eSonata\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KC\/G4KE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2014\u003c\/td\u003e\n\u003ctd\u003eHyundai\u003c\/td\u003e\n\u003ctd\u003eSonata\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KC\/G4KE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015\u003c\/td\u003e\n\u003ctd\u003eHyundai\u003c\/td\u003e\n\u003ctd\u003eSonata\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KC\/G4KE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2016\u003c\/td\u003e\n\u003ctd\u003eHyundai\u003c\/td\u003e\n\u003ctd\u003eSonata\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KC\/G4KE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2017\u003c\/td\u003e\n\u003ctd\u003eHyundai\u003c\/td\u003e\n\u003ctd\u003eSonata\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KC\/G4KE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2018\u003c\/td\u003e\n\u003ctd\u003eHyundai\u003c\/td\u003e\n\u003ctd\u003eSonata\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KC\/G4KE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019\u003c\/td\u003e\n\u003ctd\u003eHyundai\u003c\/td\u003e\n\u003ctd\u003eSonata\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KC\/G4KE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2010\u003c\/td\u003e\n\u003ctd\u003eHyundai\u003c\/td\u003e\n\u003ctd\u003eSanta Fe\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2011\u003c\/td\u003e\n\u003ctd\u003eHyundai\u003c\/td\u003e\n\u003ctd\u003eSanta Fe\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2012\u003c\/td\u003e\n\u003ctd\u003eHyundai\u003c\/td\u003e\n\u003ctd\u003eSanta Fe\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2013\u003c\/td\u003e\n\u003ctd\u003eHyundai\u003c\/td\u003e\n\u003ctd\u003eSanta Fe\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2014\u003c\/td\u003e\n\u003ctd\u003eHyundai\u003c\/td\u003e\n\u003ctd\u003eSanta Fe\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015\u003c\/td\u003e\n\u003ctd\u003eHyundai\u003c\/td\u003e\n\u003ctd\u003eSanta Fe\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2016\u003c\/td\u003e\n\u003ctd\u003eHyundai\u003c\/td\u003e\n\u003ctd\u003eSanta Fe\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2017\u003c\/td\u003e\n\u003ctd\u003eHyundai\u003c\/td\u003e\n\u003ctd\u003eSanta Fe\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2018\u003c\/td\u003e\n\u003ctd\u003eHyundai\u003c\/td\u003e\n\u003ctd\u003eSanta Fe\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2010\u003c\/td\u003e\n\u003ctd\u003eHyundai\u003c\/td\u003e\n\u003ctd\u003eTucson\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2011\u003c\/td\u003e\n\u003ctd\u003eHyundai\u003c\/td\u003e\n\u003ctd\u003eTucson\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2012\u003c\/td\u003e\n\u003ctd\u003eHyundai\u003c\/td\u003e\n\u003ctd\u003eTucson\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2013\u003c\/td\u003e\n\u003ctd\u003eHyundai\u003c\/td\u003e\n\u003ctd\u003eTucson\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2014\u003c\/td\u003e\n\u003ctd\u003eHyundai\u003c\/td\u003e\n\u003ctd\u003eTucson\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015\u003c\/td\u003e\n\u003ctd\u003eHyundai\u003c\/td\u003e\n\u003ctd\u003eTucson\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2016\u003c\/td\u003e\n\u003ctd\u003eHyundai\u003c\/td\u003e\n\u003ctd\u003eTucson\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2017\u003c\/td\u003e\n\u003ctd\u003eHyundai\u003c\/td\u003e\n\u003ctd\u003eTucson\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2018\u003c\/td\u003e\n\u003ctd\u003eHyundai\u003c\/td\u003e\n\u003ctd\u003eTucson\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019\u003c\/td\u003e\n\u003ctd\u003eHyundai\u003c\/td\u003e\n\u003ctd\u003eTucson\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2006\u003c\/td\u003e\n\u003ctd\u003eKia\u003c\/td\u003e\n\u003ctd\u003eOptima\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KC\/G4KE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2007\u003c\/td\u003e\n\u003ctd\u003eKia\u003c\/td\u003e\n\u003ctd\u003eOptima\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KC\/G4KE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2008\u003c\/td\u003e\n\u003ctd\u003eKia\u003c\/td\u003e\n\u003ctd\u003eOptima\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KC\/G4KE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009\u003c\/td\u003e\n\u003ctd\u003eKia\u003c\/td\u003e\n\u003ctd\u003eOptima\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KC\/G4KE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2010\u003c\/td\u003e\n\u003ctd\u003eKia\u003c\/td\u003e\n\u003ctd\u003eOptima\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KC\/G4KE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2011\u003c\/td\u003e\n\u003ctd\u003eKia\u003c\/td\u003e\n\u003ctd\u003eOptima\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KC\/G4KE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2012\u003c\/td\u003e\n\u003ctd\u003eKia\u003c\/td\u003e\n\u003ctd\u003eOptima\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KC\/G4KE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2013\u003c\/td\u003e\n\u003ctd\u003eKia\u003c\/td\u003e\n\u003ctd\u003eOptima\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KC\/G4KE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2014\u003c\/td\u003e\n\u003ctd\u003eKia\u003c\/td\u003e\n\u003ctd\u003eOptima\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KC\/G4KE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015\u003c\/td\u003e\n\u003ctd\u003eKia\u003c\/td\u003e\n\u003ctd\u003eOptima\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KC\/G4KE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2016\u003c\/td\u003e\n\u003ctd\u003eKia\u003c\/td\u003e\n\u003ctd\u003eOptima\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KC\/G4KE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2017\u003c\/td\u003e\n\u003ctd\u003eKia\u003c\/td\u003e\n\u003ctd\u003eOptima\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KC\/G4KE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2018\u003c\/td\u003e\n\u003ctd\u003eKia\u003c\/td\u003e\n\u003ctd\u003eOptima\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KC\/G4KE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019\u003c\/td\u003e\n\u003ctd\u003eKia\u003c\/td\u003e\n\u003ctd\u003eOptima\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KC\/G4KE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2020\u003c\/td\u003e\n\u003ctd\u003eKia\u003c\/td\u003e\n\u003ctd\u003eOptima\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KC\/G4KE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2011\u003c\/td\u003e\n\u003ctd\u003eKia\u003c\/td\u003e\n\u003ctd\u003eSorento\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2012\u003c\/td\u003e\n\u003ctd\u003eKia\u003c\/td\u003e\n\u003ctd\u003eSorento\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2013\u003c\/td\u003e\n\u003ctd\u003eKia\u003c\/td\u003e\n\u003ctd\u003eSorento\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2014\u003c\/td\u003e\n\u003ctd\u003eKia\u003c\/td\u003e\n\u003ctd\u003eSorento\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015\u003c\/td\u003e\n\u003ctd\u003eKia\u003c\/td\u003e\n\u003ctd\u003eSorento\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2016\u003c\/td\u003e\n\u003ctd\u003eKia\u003c\/td\u003e\n\u003ctd\u003eSorento\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2017\u003c\/td\u003e\n\u003ctd\u003eKia\u003c\/td\u003e\n\u003ctd\u003eSorento\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2018\u003c\/td\u003e\n\u003ctd\u003eKia\u003c\/td\u003e\n\u003ctd\u003eSorento\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019\u003c\/td\u003e\n\u003ctd\u003eKia\u003c\/td\u003e\n\u003ctd\u003eSorento\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2020\u003c\/td\u003e\n\u003ctd\u003eKia\u003c\/td\u003e\n\u003ctd\u003eSorento\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2011\u003c\/td\u003e\n\u003ctd\u003eKia\u003c\/td\u003e\n\u003ctd\u003eSportage\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2012\u003c\/td\u003e\n\u003ctd\u003eKia\u003c\/td\u003e\n\u003ctd\u003eSportage\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2013\u003c\/td\u003e\n\u003ctd\u003eKia\u003c\/td\u003e\n\u003ctd\u003eSportage\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2014\u003c\/td\u003e\n\u003ctd\u003eKia\u003c\/td\u003e\n\u003ctd\u003eSportage\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015\u003c\/td\u003e\n\u003ctd\u003eKia\u003c\/td\u003e\n\u003ctd\u003eSportage\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2016\u003c\/td\u003e\n\u003ctd\u003eKia\u003c\/td\u003e\n\u003ctd\u003eSportage\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2017\u003c\/td\u003e\n\u003ctd\u003eKia\u003c\/td\u003e\n\u003ctd\u003eSportage\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2018\u003c\/td\u003e\n\u003ctd\u003eKia\u003c\/td\u003e\n\u003ctd\u003eSportage\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019\u003c\/td\u003e\n\u003ctd\u003eKia\u003c\/td\u003e\n\u003ctd\u003eSportage\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2020\u003c\/td\u003e\n\u003ctd\u003eKia\u003c\/td\u003e\n\u003ctd\u003eSportage\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2021\u003c\/td\u003e\n\u003ctd\u003eKia\u003c\/td\u003e\n\u003ctd\u003eSportage\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2022\u003c\/td\u003e\n\u003ctd\u003eKia\u003c\/td\u003e\n\u003ctd\u003eSportage\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2010\u003c\/td\u003e\n\u003ctd\u003eKia\u003c\/td\u003e\n\u003ctd\u003eForte\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KC\/G4KE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2011\u003c\/td\u003e\n\u003ctd\u003eKia\u003c\/td\u003e\n\u003ctd\u003eForte\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KC\/G4KE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2012\u003c\/td\u003e\n\u003ctd\u003eKia\u003c\/td\u003e\n\u003ctd\u003eForte\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KC\/G4KE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2013\u003c\/td\u003e\n\u003ctd\u003eKia\u003c\/td\u003e\n\u003ctd\u003eForte\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KC\/G4KE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2007\u003c\/td\u003e\n\u003ctd\u003eKia\u003c\/td\u003e\n\u003ctd\u003eRondo\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2008\u003c\/td\u003e\n\u003ctd\u003eKia\u003c\/td\u003e\n\u003ctd\u003eRondo\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009\u003c\/td\u003e\n\u003ctd\u003eKia\u003c\/td\u003e\n\u003ctd\u003eRondo\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2010\u003c\/td\u003e\n\u003ctd\u003eKia\u003c\/td\u003e\n\u003ctd\u003eRondo\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2011\u003c\/td\u003e\n\u003ctd\u003eKia\u003c\/td\u003e\n\u003ctd\u003eRondo\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2012\u003c\/td\u003e\n\u003ctd\u003eKia\u003c\/td\u003e\n\u003ctd\u003eRondo\u003c\/td\u003e\n\u003ctd\u003e2.4L G4KC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c!-- ============================================================ --\u003e\u003c!-- SECTION 7: FULL SPECS TABLE                                  --\u003e\u003c!-- ============================================================ --\u003e\n\u003ch4\u003eFull Specifications\u003c\/h4\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number (MPN)\u003c\/td\u003e\n\u003ctd\u003eCR4668SM0.25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC\u003c\/td\u003e\n\u003ctd\u003e611500605598\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eConnecting Rod Bearing Set\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eSM-Series (Strengthened Manganese Aluminum)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBearing Size\u003c\/td\u003e\n\u003ctd\u003e0.25mm Undersize (0.010\" Undersize, First Undergrind)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eBimetal: Steel Backing + Strengthened Aluminum Alloy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAlloy Additions\u003c\/td\u003e\n\u003ctd\u003eManganese (Mn) and Chromium (Cr)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEngine Application\u003c\/td\u003e\n\u003ctd\u003eHyundai\/Kia 2.4L G4KC and G4KE (Theta\/Theta II)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCylinder Count\u003c\/td\u003e\n\u003ctd\u003e4-Cylinder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePieces Per Set\u003c\/td\u003e\n\u003ctd\u003e8 half-shells (4 pairs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLocating Lug\u003c\/td\u003e\n\u003ctd\u003eYes (with lug)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry of Origin\u003c\/td\u003e\n\u003ctd\u003eIsrael\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage Dimensions\u003c\/td\u003e\n\u003ctd\u003e4.3 in. L x 2.5 in. W x 1.1 in. H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage Weight\u003c\/td\u003e\n\u003ctd\u003eapprox. 0.3 lbs.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c!-- ============================================================ --\u003e\u003c!-- SECTION 8: WARRANTY AND PROP 65                              --\u003e\u003c!-- ============================================================ --\u003e\n\u003ch4\u003eWarranty and California Prop 65 Notice\u003c\/h4\u003e\n\u003cp\u003eKing Engine Bearings supports all manufacturer warranty claims through their i-King online registration portal. Register your \u003cstrong\u003eCR4668SM0.25\u003c\/strong\u003e set at kingbearings.com after installation to track your warranty information. Warranty claims are available to the original purchaser only. Specific warranty duration should be confirmed directly with King Bearings or an authorized US distributor at time of purchase.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMagnuson-Moss Warranty Act:\u003c\/strong\u003e Installing aftermarket engine bearings during an engine rebuild does not automatically void your vehicle's remaining factory warranty. Under the federal Magnuson-Moss Warranty Act, a dealer or manufacturer cannot void your powertrain warranty simply because you used an aftermarket bearing unless they can demonstrate that the aftermarket part directly caused the failure being claimed.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCalifornia Proposition 65 Warning:\u003c\/strong\u003e This product can expose you to Nickel, which is known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to \u003ca href=\"http:\/\/www.p65warnings.ca.gov\"\u003ewww.p65warnings.ca.gov\u003c\/a\u003e.\u003c\/p\u003e\n\u003c!-- ============================================================ --\u003e\u003c!-- SECTION 9: ABOUT KING BEARINGS                               --\u003e\u003c!-- ============================================================ --\u003e\n\u003ch4\u003eAbout King Engine Bearings\u003c\/h4\u003e\n\u003cp\u003eKing Engine Bearings Manufacturing and Marketing Ltd. is headquartered in Kiryat Gat, Israel, where all King bearings are engineered and manufactured. Founded on precision bearing technology developed for motorsport applications, King has grown into one of the most trusted names in OEM-replacement and performance engine bearings worldwide. Their product line covers thousands of passenger car and light truck applications, with dedicated race-grade XP-Series bearings for high-boost and high-RPM competition engines.\u003c\/p\u003e\n\u003cp\u003eKing's manufacturing process emphasizes tight dimensional tolerances, controlled eccentricity profiles, and rigorous material selection. The SM-Series, represented by \u003cstrong\u003eCR4668SM0.25\u003c\/strong\u003e, is King's premium aluminum-based bimetal product, designed for demanding street and performance applications where a standard aluminum bearing would not provide adequate fatigue resistance. King bearings are distributed globally through authorized channels including major US retailers such as AutoZone and RockAuto.\u003c\/p\u003e\n\u003c!-- ============================================================ --\u003e\u003c!-- SECTION 10: FAQ                                              --\u003e\u003c!-- ============================================================ --\u003e\n\u003ch4\u003eFrequently Asked Questions\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eWhat does the 0.25mm undersize mean on the CR4668SM0.25?\u003c\/strong\u003e\u003cbr\u003eIt means the bearing is designed for a crankshaft whose connecting rod journals have been precision-ground 0.25mm (0.010\") smaller than the original factory diameter. This is the first standard undergrind in engine rebuilding. If your crankshaft has not been ground and is still at factory specification, you need the standard-size CR4668SM instead.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I know if I need the 0.25mm, 0.50mm, or 0.75mm undersize?\u003c\/strong\u003e\u003cbr\u003eYour engine machinist will measure each connecting rod journal with a micrometer and compare it to the factory specification for the G4KC or G4KE engine. The difference between the measured diameter and the factory spec tells you which undersize bearing to order. Never guess the undersize: installing the wrong size bearing will result in incorrect oil clearance, premature bearing failure, or immediate engine damage.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill the CR4668SM0.25 work if my crank has not been reground?\u003c\/strong\u003e\u003cbr\u003eNo. The \u003cstrong\u003eCR4668SM0.25\u003c\/strong\u003e is thicker than a standard bearing to compensate for the smaller journal diameter after grinding. Installing a 0.25mm undersize bearing on a standard, unground crankshaft will result in zero oil clearance and immediate bearing seizure. Use the standard CR4668SM for an unground crank.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat engine codes does this bearing fit?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eCR4668SM0.25\u003c\/strong\u003e is engineered for the Hyundai\/Kia 2.4L G4KC and G4KE (Theta and Theta II) inline four-cylinder engines. These engines appear in the Hyundai Sonata, Santa Fe, and Tucson, as well as the Kia Optima, Sorento, Sportage, Forte, and Rondo across various model years. It does not fit the 2.0L G4KA, the 2.4L G4KJ, or any turbocharged engine variant. Always confirm your engine code before ordering.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I install connecting rod bearings correctly?\u003c\/strong\u003e\u003cbr\u003eConnecting rod bearings require a complete engine teardown to the short block. Clean the rod bore and cap thoroughly, check for scoring or damage in the bore, and apply a light coat of clean engine assembly lubricant or oil to the bearing face before installation. Install the shell with the locating lug aligned to the notch in the rod bore. Torque the rod cap to the G4KC\/G4KE factory specification. Always check final oil clearance with Plastigage before final assembly. This is a job for someone with engine rebuild experience or a qualified machine shop.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the CR4668SM0.25 the same as the CR4668XP0.25?\u003c\/strong\u003e\u003cbr\u003eNo. Both fit the same application at 0.25mm undersize, but they use different materials and are suited to different use cases. The \u003cstrong\u003eCR4668SM0.25\u003c\/strong\u003e (this part) is a bimetal bearing with a strengthened aluminum alloy face, ideal for street rebuilds, daily drivers, and lightly modified engines. The CR4668XP0.25 is a tri-metal race-grade bearing with a steel backing, bronze intermediate layer, and pMax Black DLC coating, designed for high-boost, high-RPM competition engines. For a stock or mildly tuned street rebuild, the SM-Series is the appropriate choice and is more cost-effective.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this product carry a Prop 65 warning?\u003c\/strong\u003e\u003cbr\u003eYes. The \u003cstrong\u003eCR4668SM0.25\u003c\/strong\u003e carries a California Proposition 65 warning for Nickel, which is known to the State of California to cause cancer, birth defects, or other reproductive harm. This warning applies to the metallic alloy construction of the bearing. For more information, visit \u003ca href=\"http:\/\/www.p65warnings.ca.gov\"\u003ewww.p65warnings.ca.gov\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow many bearings come in the set? Do I need to buy more than one set?\u003c\/strong\u003e\u003cbr\u003eOne set of \u003cstrong\u003eCR4668SM0.25\u003c\/strong\u003e contains 8 half-shells (4 pairs), which is exactly the correct quantity for a complete connecting rod bearing replacement on a four-cylinder G4KC\/G4KE engine. You do not need to purchase multiple sets. One set replaces all four connecting rod bearings in the engine.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill installing these bearings void my Hyundai or Kia warranty?\u003c\/strong\u003e\u003cbr\u003eUnder the federal Magnuson-Moss Warranty Act, a manufacturer or dealer cannot void your factory powertrain warranty simply because you installed an aftermarket part. They would need to demonstrate that the aftermarket bearing directly caused the specific failure being claimed. If your vehicle is still under an active factory warranty, consult with your dealer before performing engine work.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhere are King Engine Bearings manufactured?\u003c\/strong\u003e\u003cbr\u003eAll King Engine Bearings products, including the \u003cstrong\u003eCR4668SM0.25\u003c\/strong\u003e, are manufactured in Kiryat Gat, Israel, at King Engine Bearings' own production facility. King bearings are not manufactured in China or through a third-party contract manufacturer.\u003c\/p\u003e","brand":"King Engine Bearings","offers":[{"title":"Default Title","offer_id":45945834700879,"sku":"KINGCR4668SM0.25","price":65.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/king-cr4668sm025-hyundai-kia-2-4l-rod-bearing-set.png?v=1782222191","url":"https:\/\/www.blackopsautoworks.com\/products\/king-cr4668sm0-25-connecting-rod-bearing-set-0-25mm-undersize-hyundai-kia-2-4l-g4kc-g4ke","provider":"Black Ops Auto Works","version":"1.0","type":"link"}