What is the main function of connecting rod bearings?

Connecting rod bearings sit between the connecting rod and the crankshaft. Their main job is to reduce friction and wear by providing a smooth surface for the rod to rotate on, while also maintaining proper oil clearance for lubrication.

Do these bearings come with new crankshaft bolts?

This product is a set of connecting rod bearings only. It does not include crankshaft bolts or any other installation hardware. You will need to source those separately if required for your engine rebuild.

What does the 'PO/S2-40' in the part number signify?

The 'PO/S2-40' designation typically refers to specific design features and tolerances of the bearing, such as material composition, oil clearance specifications, and potentially a particular surface finish or coating. These details are important for ensuring proper fit and function within the engine.

1989-1993 Buick Skylark Connecting Rod Bearings

Name: ACL Buick V6 204-231 1990-04 Engine Connecting Rod Bearing Set
Brand: ACL
SKU: acl-acl-buick-v6-204-231-1990-04-engine-connecting-rod-bearing-set-t14-632549
Price: 12.56 USD
Availability: BackOrder

ACL Buick V6 204-231 1990-04 Engine Connecting Rod Bearing Set

$12.56

On Backorder

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

Fits 1989-1993 Buick Skylark. ACL connecting rod bearings for Buick V6 engines. Essential for engine health.

Key Features

Fits 1989-1993 Buick Skylark and 1989-1993 Oldsmobile Cutlass Ciera.
Designed for Buick 204-231 V6 engines.
ACL connecting rod bearing set.
Part number 6B1443PO/S2-40.
Meets or exceeds original equipment specifications.

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Product Details

When you're rebuilding or repairing the engine in your 1989-1993 Buick Skylark, especially if it's a V6 model, the connecting rod bearings are a critical component. These ACL bearings are built to handle the demands of your engine, ensuring smooth operation and proper lubrication between the connecting rod and the crankshaft. They are designed to fit Buick's 204-231 cubic inch V6 engines, which were common in these Skylarks.

ACL has a reputation for making well-built engine bearings, and this set is no different. They use specific material compositions and manufacturing techniques to create a bearing that can withstand the constant friction and heat generated during combustion. This particular set is a popular choice for those looking for a reliable replacement part that meets or exceeds original equipment specifications. The 'PO/S2-40' in the part number indicates specific design features and tolerances, often related to oil clearance, which are crucial for proper engine function and longevity.

Replacing connecting rod bearings is a job best done during an engine overhaul. Make sure you have all the necessary tools and follow the manufacturer's installation instructions carefully to ensure these bearings perform as intended. Proper oil clearance is key, so double-checking measurements during installation is always a good idea.