Sold out
ACL connecting-rod bearing set — manufacturer catalog product photo
ACL engine bearing-shell profile drawing — shell shape and oil-hole layout
Click to zoom in

ACL Honda F20C/F22C / 97-01 H22A4 Standard Size High Performance w/ Extra Oil Clearance Rod Bearing

ACL
ACL4B1912HX-STD
9315726281031
Bearings
Out of stock
$ 97.93

ACL 4B1912HX-STD is a connecting-rod bearing set for the cataloged Honda F20C1, F20C2, F22C1, H22A1 engine configurations. STD manufacturer size designation; verify the exact engine and assembled clearance.

Bearing Configuration

HX specifies 0.001 inch (0.025 mm) additional oil clearance relative to the corresponding H-STD set on the specified standard-size shaft. It is separate from any repair-size or housing-oversize designation.

Engine Application

ACL’s 2023 guide lists the 4B1912 rod-bearing family for F20C/F22C and H22A/H22Z, but their main bearings differ: F20C/F22C uses 5M1913; the guide lists 5M1957 mains and separate 1T1957 thrust washers for 1998-on H22A/H22Z. Match the exact engine and block configuration when choosing components.

Manufacturer / Engine Honda — F20C1
Manufacturer / Engine Honda — F20C2
Manufacturer / Engine Honda — F22C1
Manufacturer / Engine Honda — H22A1
Manufacturer / Engine Honda — H22A2
Manufacturer / Engine Honda — H22A4
Manufacturer / Engine Honda — H22A5
Manufacturer / Engine Honda — H22A7
Manufacturer / Engine Honda — H22A8
Manufacturer / Engine Honda — H22Z1

The engine-family list identifies catalog applications, not universal vehicle fitment. Confirm the exact engine version, crankshaft, rods, block and bearing location. Vehicle names and photos do not replace dimensional verification.

Specifications

Brand ACL
Manufacturer Part Number 4B1912HX-STD
Component Connecting-Rod Bearing Set
Size Selection STD manufacturer size designation; verify the exact engine and assembled clearance.
Catalog Rod Housing Bore (STD journal) 51.004–51.024 mm
Catalog Rod Journal Diameter (STD) 47.980–48.000 mm
Catalog Family ACL Race Series
Half Type Identical halves
Catalog Size Options STD

Quantity and Assembly Checks

Confirm the rod-bearing set contents and shell positions against the complete manufacturer number. The photo is representative of the part family.

Measure shaft journals, housing bores and assembled oil clearance using the engine builder’s specification. Check oil-hole alignment, groove placement and crankshaft fillet clearance before final assembly. Catalog standard dimensions must not be treated as the finished dimensions for a different repair size. ACL specifies that abrasive pads or paper must not be used on the bearing surface to alter oil clearance.

Frequently Asked Questions

Is the year and model enough to choose this bearing? No. Match 4B1912HX-STD to the exact engine and measured build specification.

What size is this listing? STD manufacturer size designation; verify the exact engine and assembled clearance.

Can I substitute a different suffix? Compare the complete grade, size, locating features and assembled clearance before substituting any bearing.

Related Engine Parts

For the F20C/F22C application, see ACL 5M1913HX-STD main bearings. This is a separately sold component with its own measured journal clearance; confirm the exact engine and size before pairing parts.

ACL Performance Parts

ACL Performance Parts

Shop ACL engine bearings, Race Series rod and main bearings, thrust components, bushings and selected oil pumps at Black Ops Auto Works. Build your parts list around the engine you are rebuilding, then compare Race Series H, extra-clearance HX and the available repair-size configurations with your engine builder’s requirements.ACL Race Series Engine BearingsACL Race Series bearings give engine builders application-specific choices for performance engine assembly. H and HX configurations let you select the specified bearing family and oil-clearance option, with additional designs available for selected engines. The right choice starts with the planned engine build and the measured components rather than a universal bearing upgrade.Shop ACL Engine Parts Connecting-rod bearings: service the crankshaft’s rod journals with the set or individual pair specified for your engine. Main bearings: support the crankshaft in the block; compare complete sets and selective-grade listings where of...

View ACL Performance Parts Products
Bearings

Bearings

Engine and drivetrain bearings for domestic, import, and diesel platforms are stocked at Black Ops Auto Works. Shop main bearings, rod bearings, cam bearings, thrust bearings, wheel bearings, pilot bearings, transmission bearing kits, and differential bearing sets for HEMI 5.7, 6.1, 6.4, and 6.2 supercharged engines, LS and LT platforms, Coyote V8s, Duramax, Cummins, and Power Stroke diesels, and popular import engines like the VQ35, VQ37, VR38DETT, K20, K24, and 2JZ. Every bearing is filterable by year, make, model, engine code, and bearing clearance so the correct part ships the first time. Black Ops Auto Works carries 1250 bearing SKUs across engine internals, transmission and transfer case hardware, differential components, and wheel end assemblies. What This Category Covers Bearings are the precision-fit wear surfaces that keep an engine, transmission, and axle assembly spinning true under load. A correctly sized bearing set with the right clearance is one of the most impor...

View Bearings Products
Engine

Engine

Shop automotive engine parts, cooling-system components, oil-system upgrades, ignition parts, pulleys, sensors, gaskets, fuel components, and engine-bay accessories at Black Ops Auto Works. This collection covers vehicle-specific replacement parts, performance upgrades, supporting hardware, and universal components for street cars, trucks, SUVs, Jeeps, diesel vehicles, off-road builds, and motorsport applications. Engine Parts and Performance Components The Engine collection brings together components used throughout the engine, lubrication system, cooling system, ignition system, fuel system, crankcase ventilation, accessory drive, and engine compartment. Available products range from replacement sensors and gaskets to rotating-assembly parts, performance cooling systems, supercharger pulleys, catch cans, cylinder heads, camshafts, intake manifolds, and engine-bay dress-up components. Engine compatibility cannot be determined from vehicle model alone. Confirm the exact year, make, ...

View Engine Products
Engine Block

Engine Block

Engine block parts and internals for HEMI, Hellcat, Trackhawk, TRX, LS, LT, Coyote, EcoBoost, K-Series, VR38DETT, and Cummins diesel builds are stocked at Black Ops Auto Works. Shop main and rod bearings, engine gaskets and gasket kits, engine mounts, block off plates, block heaters, PCV valves, sleeves, engine covers, and complete engines. Every product is filterable by year, make, model, trim, engine, and drivetrain so the correct part ships the first time. Black Ops Auto Works carries 2,187 engine block SKUs across rotating assembly, sealing, mounting, and engine bay dress-up categories. What This Category Covers The Engine Block collection groups the internal and structural components that make up the bottom end and block assembly of a performance or OEM-replacement engine. Coverage spans bearings for rotating assembly refreshes, gaskets and gasket kits for sealing rebuilds, engine mounts for swap and performance builds, and engine bay dress-up pieces for HEMI, Hellcat, and ...

View Engine Block Products
Honda Prelude Parts and Accessories

Honda Prelude Parts and Accessories

Shop Honda Prelude parts for exhaust, drivetrain, chassis and everyday-care projects at Black Ops Auto Works. Compare Invidia exhaust, Action Clutch drivetrain and Seibon panel references for their stated generations, alongside separate newer spring and floor-mat applications. Choose around the exact chassis, engine and factory equipment.Exhaust and Drivetrain ProjectsThe Invidia Q300 reference specifies a 1997–2001 base-model-only application. Match that restriction and the complete routing before choosing it. Action Clutch H22/H23 references and Clutch Masters kits have separate engine, transmission and flywheel requirements. Compare intended use and friction arrangement only after establishing the complete drivetrain application.Chassis and Brake ChoicesGoodridge brake lines name a 1997–2001 base-model application, while pads, rotors and other brake references require their own installed-assembly review. Innovative mounting and traction-bar references distinguish chassis and Type...

View Honda Prelude Parts and Accessories Products
Honda S2000 Parts and Accessories

Honda S2000 Parts and Accessories

Shop Honda S2000 parts for suspension projects, exhaust upgrades, clutch service and exterior changes at Black Ops Auto Works. Compare HKS Hipermax applications, Revel exhaust references, Action Clutch or Clutch Masters kits and brake-service options. Select the complete arrangement for your production year, engine and installed equipment.Suspension and Chassis ProjectsHKS Hipermax S and Bilstein B14 references name specific S2000 coverage and kit arrangements. Compare exact application, supplied components and setup information for the intended use. Cusco bars and braces and Whiteline bushings address separate chassis locations; review current suspension condition, mounting and the complete handling combination with your installer.Clutch and Engine-System ChoicesAction Clutch and Clutch Masters references offer different friction and flywheel arrangements, including separate race-system release components. Match engine, transmission, compatible flywheel and release system before ch...

View Honda S2000 Parts and Accessories Products
Military & First Responder Discounts

Military & First Responder Discount Program

Black Ops Auto Works proudly honors active duty military, veterans, National Guard, reserves, police officers, firefighters, and EMTs with an exclusive 5% discount on all performance parts and carbon fiber upgrades. Verify instantly and start saving today.

Learn More & Apply

Your cart

×