What specific engine types does this bearing set fit?

This ACL main bearing set is designed for the 3.8L V6 engine found in various GM vehicles. It specifically fits engines designated as Type L (1990-93), Type 1 (1992-93), and Type C (1991).

Do these bearings come with installation hardware?

This product includes the main bearings themselves. You will need to refer to your engine's service manual for any additional hardware or specific installation procedures, such as proper lubrication and torque specifications.

What is the main 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, which is crucial for engine health and longevity.

Specifications

Brand: ACL
Part #: 4M1822P-20

ACL Buick V6 204-231 1990-93 Engine Crankshaft Main Bearing Set

Name: ACL Buick V6 204-231 1990-93 Engine Crankshaft Main Bearing Set
Brand: ACL
SKU: acl-acl-buick-v6-204-231-1990-93-engine-crankshaft-main-bearing-set-t14-632133
Price: 12.12 USD
Availability: BackOrder

$12.12

On Backorder

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

Fits 1992-2003 Pontiac Bonneville. ACL Buick V6 204-231 engine crankshaft main bearing set.

Key Features

Fits 1992-2003 Pontiac Bonneville, 1992-1995 Buick LeSabre, 1997-2004 Buick Regal, 1988-1990 Buick Riviera, and 2004-2005 Chevrolet Monte Carlo.
Designed for Buick 3800 3.8L V6 engines with VIN codes 1, C, or L.
Specifically fits 1990-93 Type L engines, 1992-93 Type 1 engines, and 1991 Type C engines.
Well-built main bearing set for crankshaft support.
Part number 4M1822P-20.

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Will this fit your vehicle?

About this part

Product Details

Doing an engine rebuild on your 1992-2003 Pontiac Bonneville, or maybe a Buick LeSabre, Regal, or Riviera from the late 80s to early 2000s? If you're working on the 3800 3.8L V6 engine, specifically the Type L (1990-93), Type 1 (1992-93), or Type C (1991) variants, you'll need a solid set of main bearings to get everything running smoothly again. These ACL main bearings are a well-built replacement for your worn-out originals, helping to ensure proper crankshaft support and oil clearance.

ACL has been making engine bearings for a long time, and this set is built to meet the needs of a stock or mildly modified engine. They're designed to fit right into your existing crankshaft and block setup, making the installation process as straightforward as possible during your engine work. Getting the right clearances with new bearings is key to a long-lasting engine rebuild, and this set from ACL is a popular choice for many mechanics.