What does 'undersize' mean for these bearings?

An undersize bearing, like this 0.010 inch set, is used when the crankshaft journals have been machined down to remove imperfections or wear. The bearing is made slightly thinner to compensate for the removed material, ensuring proper clearance.

Are these bearings sold individually or as a set?

This is a set of connecting rod bearings. It includes all the bearings needed for all the connecting rods in your engine.

What is the typical application for these bearings?

These bearings are commonly used during engine rebuilds or overhauls where the crankshaft has been resurfaced or machined. They are a direct replacement for the original equipment specifications for the listed Mazda vehicles.

Specifications

Brand: ACL
Part #: 4B2130A-.25

ACL Mazda 4 1998-2184cc 1983-93 Engine Connecting Rod Bearing Set

Name: ACL Mazda 4 1998-2184cc 1983-93 Engine Connecting Rod Bearing Set
Brand: ACL
SKU: acl-acl-mazda-4-1998-2184cc-1983-93-engine-connecting-rod-bearing-set-t14-630978
Price: 15.85 USD
Availability: BackOrder

$15.85

On Backorder

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

Fits 1987-1993 Mazda B2200. ACL connecting rod bearings, undersize 0.010 inch. A solid choice for engine rebuilds.

Key Features

Fits 1987-1993 Mazda B2200, 1983, 1988-1991 Mazda 626, and 1988-1992 Mazda MX-6.
Connecting rod bearing set for 1998-2184cc engines.
Features a 0.010 inch undersize to accommodate machined crankshafts.
Well-built by ACL, a popular manufacturer of engine bearings.
Helps manage friction and wear between the connecting rod and crankshaft.

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Will it fit your car?

Fits these vehicles

Mazda 626 1983, 1988-1991
Mazda B2200 1987-1993
Mazda MX-6 1988-1992

About this part

Product Details

Doing an engine rebuild on your 1987-1993 Mazda B2200, 1983-1991 Mazda 626, or 1988-1992 Mazda MX-6? These connecting rod bearings from ACL are a well-built replacement part. They sit between the connecting rod and the crankshaft, controlling friction and wear in a critical part of your engine's rotating assembly.

This set is specifically sized at 0.010 inches undersize, meaning it's intended for crankshafts that have been machined down by that amount during an engine rebuild. ACL is a well-known name in engine bearings, and these are made to meet the demands of daily driving and performance applications. They are a popular choice for mechanics and DIYers looking for a reliable component for their engine's bottom end.