What is the difference between standard size and undersize rod bearings?

Standard size bearings are designed to fit the original, unmachined crankshaft and connecting rod journals. Undersize bearings are used when the crankshaft journals have been machined down due to wear or damage, requiring a thicker bearing to restore proper clearance.

Do I need to machine my crankshaft to install these bearings?

No, these are standard size bearings. They are designed to be a direct replacement for your original bearings and do not require any machining of the crankshaft or connecting rods.

What else might I need when replacing rod bearings?

When replacing rod bearings, it's highly recommended to also replace the main bearings, check crankshaft journals for wear or damage, and have the correct torque wrench to reassemble the connecting rod caps to manufacturer specifications.

ACL 94+ Acura B18C VTEC Standard Size Rod Bearing Set

Specifications

Brand: ACL
Part #: 4B1925A-STD
UPC: 084777701214

ACL 94+ Acura B18C VTEC Standard Size Rod Bearing Set

Name: ACL 94+ Acura B18C VTEC Standard Size Rod Bearing Set
Brand: ACL
Price: 10.25 USD
Availability: InStock

$10.25

On Backorder — Expected to ship by Apr 11, 2026

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Fits 1994-2001 Acura Integra. ACL standard size rod bearings for B18C VTEC engines. Ensures proper oil clearance for engine longevity.

Key Features

Fits 1994-2001 Acura Integra.
Standard size rod bearing set for ACL 4B1925A-STD.
Designed for B18C VTEC engines.
Helps maintain proper oil clearance between the connecting rod and crankshaft.
Prevents excessive wear and potential engine damage.

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Fits this vehicle

Acura Integra 1994-2001

Product Details

This ACL rod bearing set is made for the B18C VTEC engine found in the 1994-2001 Acura Integra. Rod bearings sit between the connecting rod and the crankshaft, and they're critical for maintaining the correct oil clearance. This clearance allows oil to flow and lubricate the moving parts, preventing metal-on-metal contact. When these bearings wear out, you can get excessive play, leading to knocking noises and potential engine damage. This set is standard size, meaning it's designed to replace your original bearings without needing any machining on the crankshaft or connecting rods.

Replacing rod bearings is a common part of an engine rebuild or overhaul. ACL is a well-known name in performance engine bearings, and this set is a solid option for getting your Integra's engine back in top shape.