What is the primary function of crankshaft main bearings?

Crankshaft main bearings support the crankshaft within the engine block. They create a low-friction surface that allows the crankshaft to rotate smoothly while maintaining precise oil clearance for proper lubrication.

What vehicles does this ACL main bearing set fit?

This set is compatible with a wide range of GM vehicles from 1988 to 2005, including Buick LeSabre, Park Avenue, Regal, Riviera; Chevrolet Camaro, Impala, Monte Carlo; Oldsmobile 88, 98; and Pontiac Bonneville, Firebird, all equipped with the 3.8L V6 engine (VIN 1, C, K, L).

Do these bearings come with installation instructions?

While these bearings are designed as a direct fit replacement, it is recommended to refer to the manufacturer's installation guidelines or a service manual for the correct procedure and critical oil clearance specifications.

Specifications

Brand: ACL
Part #: 4M2022A-20

ACL Buick V6 231 1995-04 Engine Crankshaft Main Bearing Set

Name: ACL Buick V6 231 1995-04 Engine Crankshaft Main Bearing Set
Brand: ACL
SKU: acl-acl-buick-v6-231-1995-04-engine-crankshaft-main-bearing-set-t14-632147
Price: 27.93 USD
Availability: BackOrder

$27.93

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ACL Engine Crankshaft Main Bearing Set for Buick V6 231 1995-04.

Key Features

Fits Buick LeSabre, Park Avenue, Regal, Riviera; Chevrolet Camaro, Impala, Monte Carlo; Oldsmobile 88, 98; and Pontiac Bonneville, Firebird.
Designed for 3.8L V6 engines with VIN codes 1, C, K, or L.
ACL uses a durable overlay material for consistent oil film and reduced friction.
Helps maintain proper crankshaft oil clearance for engine longevity.
Direct fit replacement for worn or damaged main bearings.

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About this part

Product Details

When you're rebuilding or refreshing the bottom end of your Buick 3800 3.8L V6, getting the crankshaft main bearings right is crucial. These ACL main bearings are built to handle the demands of your engine, ensuring proper oil clearance and smooth rotation for the crankshaft. They are designed to fit a wide range of GM vehicles from 1988 through 2005, covering popular models like the Buick LeSabre, Park Avenue, Regal, Chevrolet Camaro, Impala, Monte Carlo, Pontiac Bonneville, and Firebird.

ACL uses a specialized overlay material that's known for its durability and ability to maintain consistent oil film under pressure. This means your crankshaft will have the lubrication it needs, reducing friction and wear over time. These bearings are a solid option for anyone looking to replace worn-out bearings or install new ones during an engine overhaul. They fit right into the factory main caps, making installation straightforward if you're already inside the engine.

If you're working on the engine, make sure you have the correct oil clearance specifications from your service manual before installing these bearings. Proper clearance is key to their performance and longevity.