What does '.25mm Oversized' mean for these rod bearings?

'.25mm Oversized' means these bearings are slightly larger than standard size. They are intended for use when the crankshaft journals have been machined down by 0.25mm due to wear or damage, helping to restore the correct oil clearance.

What engines do these ACL rod bearings fit?

These rod bearings are specifically designed for Mazda B6, BP, and BP-T engines with displacements of 1.6L and 1.8L.

What material are these bearings made from?

These ACL rod bearings are constructed from a strong tri-metal material, which is known for its good durability and performance characteristics in engine applications.

ACL Engine Bearings 4B8351H-.25 - Mazda Miata, Protege, Kia

Name: ACL Mazda B6/BP/BP-T 1.6/1.8L .25mm Oversized High Performance Rod Bearing Set
Brand: ACL
SKU: acl-acl-mazda-b6-bp-bp-t-1-6-1-8l-25mm-oversized-high-performance-rod-bearing-se-t14-18418
Price: 51.17 USD
Availability: InStock

ACL Mazda B6/BP/BP-T 1.6/1.8L .25mm Oversized High Performance Rod Bearing Set

$51.17

In Stock

ACL Mazda B6/BP/BP-T 1.6/1.8L .25mm Oversized High Performance Rod Bearing Set. These bearings are .25mm oversized to help restore oil clearance on worn crankshafts.

Key Features

Fits Kia Rio, Sephia, Mazda 323, MX-3, Miata, Protege, and Mercury Capri.
Set includes .25mm oversized rod bearings.
Designed for B6, BP, and BP-T 1.6L and 1.8L engines.
Constructed from a durable tri-metal material.
Helps restore proper oil clearance on worn crankshafts.

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Will this fit your vehicle?

Product Details

ACL Mazda B6/BP/BP-T 1.6/1.8L .25mm Oversized High Performance Rod Bearing Set. These bearings are .25mm oversized to help restore oil clearance on worn crankshafts. If you're rebuilding an engine or dealing with worn bearings, these are a solid option. They are built to handle the demands of performance applications while maintaining proper oil flow.

ACL has been making engine bearings for a long time, and these are well-built for the job. The .25mm oversize means they're designed to be used when the crankshaft journals have been machined down by .25mm due to wear or damage. This allows you to bring the engine back within spec without needing a full crankshaft replacement. They are made from a strong tri-metal material that offers good durability and performance.

When installing these bearings, it's crucial to ensure your crankshaft journals are clean and within the specified tolerance for the .25mm undersize. Always refer to your vehicle's service manual for the correct installation procedure and torque specifications.