What does '0.25mm oversized' mean for these rod bearings?

This means the bearings are slightly larger than the standard size. They are designed to be used when the crankshaft journals have been machined down by 0.25mm to ensure a fresh, smooth surface. This sizing helps achieve the correct, tight clearance needed for proper oil pressure and engine protection.

What engines do these ACL rod bearings fit?

These bearings are specifically designed for the B17A1, B18A1, and B18B1 engine codes found in various Acura and Honda vehicles. Always confirm your specific engine code before ordering.

Are these bearings suitable for a stock engine rebuild?

Yes, these bearings are a solid option for a stock engine rebuild, especially if the crankshaft has been machined. They offer good protection and reliability. For performance builds, they also provide a strong foundation.

1990-2001 Acura Integra Rod Bearings | ACL 4B1946H-.25

Name: ACL Acura B17A1/B18A1/B18B1 0.25mm Oversized High Performance Rod Bearing Set
Brand: ACL
SKU: acl-acl-acura-b17a1-b18a1-b18b1-0-25mm-oversized-high-performance-rod-bearing-se-t14-12937
Price: 61.08 USD
Availability: InStock

ACL Acura B17A1/B18A1/B18B1 0.25mm Oversized High Performance Rod Bearing Set

$61.08

Only 4 left in stock

Fits 1990-2001 Acura Integra. ACL B17A1/B18A1/B18B1 0.25mm oversized rod bearings for improved engine reliability.

Key Features

Fits 1990-2001 Acura Integra, 1984-1985 Honda Accord, 1997-2001 Honda CR-V, and 1988-1990 Honda Prelude.
ACL rod bearing set for B17A1, B18A1, and B18B1 engines.
Bearings are 0.25mm oversized, intended for use with machined or reground crankshafts.
Helps reduce friction and wear in the engine's rotating assembly.
Well-built for performance and reliability.

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Will this fit your vehicle?

Product Details

You get a full set of ACL rod bearings, sized 0.25mm oversized, for your B17A1, B18A1, or B18B1 engine. These are a critical part of your engine's rotating assembly, helping to reduce friction and wear between the crankshaft and connecting rods. When rebuilding or refreshing an engine, especially one that's seen a lot of miles or is being pushed harder, replacing these bearings is a must for long-term reliability.

ACL has been making engine bearings for a long time, and these are well-built for the job. The 0.25mm oversized sizing means they're intended for use when the crankshaft journals have been machined down slightly to clean them up, or if you're using a crankshaft that's already been reground. This specific sizing ensures a proper, snug fit on the crankshaft, which is essential for maintaining oil pressure and protecting the bearing surface.

When you're putting an engine back together, getting the bearing clearances right is key. These ACL bearings are designed to meet the demands of performance applications, offering solid protection for your engine's internals. Make sure to follow the manufacturer's installation instructions and proper lubrication procedures when installing these bearings to ensure optimal performance and longevity.