ACL connecting-rod bearing set — manufacturer catalog product photo
ACL engine bearing-shell profile drawing — shell shape and oil-hole layout
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ACL Acura B18C1/B18C5 VTEC 0.025mm Oversized High Performance Rod Bearing Set

ACL
ACL4B1925H-.025
9315726280317
Bearings
3 Units In Stock
$ 106.87
$ 106.87

ACL 4B1925H-.025 is a connecting-rod bearing set for the cataloged Honda B18C1, B18C2, B18C5, B18C7 engine configurations. .025 mm journal repair-size designation. Confirm the required undersize journal diameter and assembled clearance with the engine builder.

Bearing Configuration

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

Engine Application

ACL’s 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.

Manufacturer / Engine Honda — B18C1
Manufacturer / Engine Honda — B18C2
Manufacturer / Engine Honda — B18C5
Manufacturer / Engine Honda — B18C7

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 4B1925H-.025
Component Connecting-Rod Bearing Set
Size Selection .025 mm journal repair-size designation. Confirm the required undersize journal diameter and assembled clearance with the engine builder.
Catalog Family ACL Race Series
Half Type Identical halves
Catalog Size Options STD, .025, .25

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 4B1925H-.025 to the exact engine and measured build specification.

What size is this listing? .025 mm journal repair-size designation. Confirm the required undersize journal diameter and assembled clearance with the engine builder.

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

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