What does the +0.25mm sizing mean for these bearings?

The +0.25mm sizing indicates that these bearings are slightly larger than standard. They are intended for use when the engine's crankshaft journals have been machined down by 0.25mm to ensure proper clearance and fit after wear or during a rebuild.

What is the advantage of a bimetal bearing construction?

Bimetal bearings, like those with an aluminum silicon base, offer a good combination of strength and the ability to conform to the crankshaft surface. This helps to maintain consistent oil film and reduce friction effectively.

Are these bearings sold individually or as a set?

This product is a connecting rod bearing set, meaning it includes all the necessary bearings for the connecting rods on the specified General Motors engines.

Specifications

Brand: King Engine Bearings
Part #: CR4059SI0.25
UPC: 611500441448

King Engine Bearings General Motors 138Ci 2.3L L40/Ld2 16V (Size +0.25mm) Connecting Rod Bearing Set

Name: King Engine Bearings General Motors 138Ci 2.3L L40/Ld2 16V (Size +0.25mm) Connecting Rod Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-general-motors-138ci-2-3l-l40-ld2-16v--t14-769552
Price: 56.35 USD
Availability: BackOrder

$56.35

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King Engine Bearings CR4059SI0.25 connecting rod bearing set for General Motors 138Ci 2.3L L40/LD2 engines. Size +0.25mm.

Key Features

Fits General Motors 138ci 2.3L L40 and LD2 16V engines.
Features a bimetal construction with an aluminum silicon base.
This is a connecting rod bearing set.
The set is sized +0.25mm, intended for machined crankshafts.
Compatible with a range of vehicles including Buick Skylark, Chevrolet Cavalier, and Pontiac Grand Am.

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About this part

Product Details

Built with a bimetal construction featuring an aluminum silicon base, this King Engine Bearings connecting rod bearing set is designed for General Motors 138ci 2.3L L40 and LD2 16V engines. These bearings are a crucial component for the proper functioning of your engine, helping to reduce friction between the crankshaft and connecting rod. This particular set is sized +0.25mm, meaning it's intended for engines that have been machined to a slightly larger diameter to account for wear or to achieve a specific clearance.

When rebuilding or repairing an engine, especially one with a few miles on it, using bearings that are precisely sized and well-constructed is key. The bimetal design offers a good balance of strength and conformability, allowing the bearing to adapt to the crankshaft surface while maintaining its structural integrity. This set fits a range of vehicles, including models like the Buick Skylark, Chevrolet Cavalier, and Pontiac Grand Am, making it a solid option for many GM 2.3L engine applications.