{"product_id":"ngk-ifr7f-8ds-laser-iridium-spark-plugs-box-of-4","title":"NGK Laser Iridium Spark Plug Box of 4 (IFR7F-8DS)","description":"\u003ch4\u003ePrecision Iridium Ignition for High-Compression and Turbocharged Engines\u003c\/h4\u003e\u003cp\u003eThe NGK IFR7F-8DS is an OEM-grade Laser Iridium spark plug engineered for engines demanding precise ignition timing, consistent spark kernel placement, and long service intervals. With a 0.8 mm iridium center electrode and a platinum-tipped ground electrode, NGK5794 delivers a focused, reliable spark under high boost pressures and extreme combustion temperatures. Each box contains four plugs for a single-bank installation.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eLaser-welded 0.8 mm iridium center electrode for pinpoint spark accuracy\u003c\/li\u003e\n\u003cli\u003ePlatinum-tipped ground electrode resists erosion and extends service life\u003c\/li\u003e\n\u003cli\u003eTrivalent metal plating on shell resists corrosion and eases installation torque\u003c\/li\u003e\n\u003cli\u003eCorrugated ribs on the insulator prevent flashover and misfires\u003c\/li\u003e\n\u003cli\u003eCopper core improves heat dissipation and thermal range consistency\u003c\/li\u003e\n\u003cli\u003eFactory pre-gapped to OEM specification, no adjustment required\u003c\/li\u003e\n\u003cli\u003eBox of 4 plugs covers one cylinder bank on most 4-cylinder applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecifications\u003c\/h4\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number (MPN)\u003c\/td\u003e\n\u003ctd\u003eIFR7F-8DS \/ NGK5794\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePlug Type\u003c\/td\u003e\n\u003ctd\u003eLaser Iridium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCenter Electrode\u003c\/td\u003e\n\u003ctd\u003eIridium, 0.8 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGround Electrode\u003c\/td\u003e\n\u003ctd\u003ePlatinum-tipped\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread Size\u003c\/td\u003e\n\u003ctd\u003e14 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReach\u003c\/td\u003e\n\u003ctd\u003e26.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHex Size\u003c\/td\u003e\n\u003ctd\u003e16 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGap\u003c\/td\u003e\n\u003ctd\u003e0.8 mm (pre-set)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeat Range\u003c\/td\u003e\n\u003ctd\u003e7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResistor\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQuantity\u003c\/td\u003e\n\u003ctd\u003e4 plugs per box\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC\u003c\/td\u003e\n\u003ctd\u003e087295870669\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch4\u003eWhat's Included\u003c\/h4\u003e\u003cul\u003e\u003cli\u003e4x NGK IFR7F-8DS Laser Iridium Spark Plugs\u003c\/li\u003e\u003c\/ul\u003e\u003ch4\u003eAbout NGK\u003c\/h4\u003e\u003cp\u003eNGK Spark Plugs has been manufacturing ignition components since 1936 and supplies OEM spark plugs to nearly every major automaker worldwide. Their Laser Iridium line is produced under strict tolerances with laser-welded fine-wire electrodes, delivering consistent ignition performance over extended drain intervals without gapping or adjustment.\u003c\/p\u003e\u003ch4\u003eFrequently Asked Questions\u003c\/h4\u003e\u003cstrong\u003eWhat vehicles use the NGK IFR7F-8DS spark plug?\u003c\/strong\u003e\u003cp\u003eThe IFR7F-8DS fits a wide range of high-compression and turbocharged 4-cylinder engines. Cross-reference your vehicle's OEM plug number or consult an NGK fitment guide with your year, make, model, and engine displacement to confirm compatibility before ordering NGK5794.\u003c\/p\u003e\u003cstrong\u003eDoes the NGK IFR7F-8DS come pre-gapped?\u003c\/strong\u003e\u003cp\u003eYes. Each NGK5794 plug ships pre-gapped from the factory. Do not regap iridium plugs as adjusting the fine-wire electrode can crack the tip and destroy the plug. Install straight from the box.\u003c\/p\u003e\u003cstrong\u003eHow long do NGK Laser Iridium spark plugs last?\u003c\/strong\u003e\u003cp\u003eUnder normal operating conditions and with clean fuel, NGK Laser Iridium plugs are rated for up to 100,000 miles. Actual service life varies with fuel quality, oil consumption, and engine tune.\u003c\/p\u003e\u003cstrong\u003eCan I use the IFR7F-8DS in a turbocharged or supercharged engine?\u003c\/strong\u003e\u003cp\u003eYes. The 7 heat range designation and iridium construction make the NGK IFR7F-8DS well suited for forced-induction applications. Always verify your tuner's recommended heat range for modified engines running elevated boost.\u003c\/p\u003e\u003cstrong\u003eWhat is the torque spec for installing the NGK IFR7F-8DS?\u003c\/strong\u003e\u003cp\u003eFor a 14 mm plug in an aluminum head, torque to 18 ft-lb (24 Nm) with a new gasket. On a used gasket in a re-installation, reduce torque by approximately 30%. Always follow your engine manufacturer's specification.\u003c\/p\u003e\u003cstrong\u003eIs the NGK IFR7F-8DS equivalent to any OEM plug numbers?\u003c\/strong\u003e\u003cp\u003eNGK plugs are frequently used as OEM replacements across many brands. Cross-reference the IFR7F-8DS against your current plug number using NGK's official catalog or part cross-reference tool at ngksparkplugs.com.\u003c\/p\u003e\u003cstrong\u003eHow many plugs do I need for a 4-cylinder vs. 6-cylinder engine?\u003c\/strong\u003e\u003cp\u003eA 4-cylinder engine requires 4 plugs, so one box of NGK5794 covers a complete change on a standard 4-cylinder. A 6-cylinder requires 6 plugs and a V8 requires 8 plugs, so order accordingly.\u003c\/p\u003e\u003cstrong\u003eWhat is the difference between iridium and standard copper spark plugs?\u003c\/strong\u003e\u003cp\u003eIridium plugs use a fine-wire center electrode that requires less voltage to fire, producing a more consistent spark. They last significantly longer than copper plugs and maintain their gap more precisely, which is critical in high-performance and modern direct-injection engines.\u003c\/p\u003e\u003ch4\u003eInstallation Instructions\u003c\/h4\u003e\u003col\u003e\n\u003cli\u003eAllow the engine to cool completely before removing spark plugs to prevent thread damage to aluminum heads.\u003c\/li\u003e\n\u003cli\u003eDisconnect the ignition coil or spark plug wire from the plug you are replacing.\u003c\/li\u003e\n\u003cli\u003eUse a spark plug socket with a rubber insert to remove the old plug by turning counterclockwise.\u003c\/li\u003e\n\u003cli\u003eInspect the plug bore and clean any debris before installation.\u003c\/li\u003e\n\u003cli\u003eHand-thread each NGK IFR7F-8DS into the cylinder head until snug, then torque to spec.\u003c\/li\u003e\n\u003cli\u003eReconnect the ignition coil or plug wire and repeat for all cylinders.\u003c\/li\u003e\n\u003cli\u003eStart the engine and verify smooth idle with no misfire codes.\u003c\/li\u003e\n\u003c\/ol\u003e\u003cp\u003e\u003cstrong\u003eWARNING:\u003c\/strong\u003e This product can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and reproductive harm. For more information go to www.P65Warnings.ca.gov.\u003c\/p\u003e","brand":"NGK","offers":[{"title":"Default Title","offer_id":46027621466191,"sku":"NGK5794","price":48.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/NGK_IFR7F-8DS_Laser_Iridium_Spark_Plugs_Box_of_4_NGK5794.png?v=1783525966","url":"https:\/\/www.blackopsautoworks.com\/products\/ngk-ifr7f-8ds-laser-iridium-spark-plugs-box-of-4","provider":"Black Ops Auto Works","version":"1.0","type":"link"}