ACL Acura B18C1/B18C5 VTEC Standard Size High Performance Rod Bearing Set

ACL 4B1925H-STD is a connecting-rod bearing set for the cataloged Honda B18C1, B18C2, B18C5, B18C7 engine configurations. STD manufacturer size designation; verify the exact engine and assembled clearance.

Bearing Configuration

H identifies the ACL Race Series family. Match the complete suffix to the required clearance, shell width and locating features.

Engine Application

ACLs 2023 guide lists the 4B1925 rod-bearing family for B18C1, B18C2, B18C5 and B18C7 1797cc VTEC engines with 5M1959 main bearings. It separately catalogs 4B1946 for B17A1/B18A1/B18B1/B18B2. Match the complete engine code and rod configuration rather than selecting by the B18 name alone.

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

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 builders 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 4B1925H-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.

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