What does the '0.020' in the part number mean?

The '0.020' in the part number CB1878A20(4) indicates that these connecting rod bearings are 0.020 inches undersize. This means they are intended for use on a crankshaft that has been machined down by 0.020 inches from its original size.

Do these bearings come with installation instructions?

While these bearings are designed as a direct replacement, it is always recommended to refer to the manufacturer's official installation instructions or a trusted service manual for proper installation procedures and torque specifications.

What is the typical application for these bearings?

These bearings are commonly used in engine rebuilds or repairs for a wide variety of GM passenger cars and trucks. They are essential components for the connecting rods to rotate smoothly on the crankshaft.

Clevite Connecting Rod Bearing Set CB1878A20(4) - GM Pass &

Name: Clevite GM Pass & Trk 151 2.5L 4 Cyl 1977-93 198 225 231 3.8L V6 1962 Con Rod Bearing Set
Brand: Clevite
SKU: clevite-clevite-gm-pass-trk-151-2-5l-4-cyl-1977-93-198-225-231-3-8l-v6-1962-con--t14-55416
Price: 23.30 USD
Availability: BackOrder

Clevite GM Pass & Trk 151 2.5L 4 Cyl 1977-93 198 225 231 3.8L V6 1962 Con Rod Bearing Set

$23.30

On Backorder

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

Clevite Connecting Rod Bearing Set CB1878A20(4) for GM Pass & Trk. Fits a wide range of vehicles from 1962-1993.

Key Features

Fits 33+ vehicle make/model combinations from 1962-1993.
0.020 inch undersize connecting rod bearing set.
Designed to meet original equipment specifications.
Helps ensure smooth rotation of the crankshaft.
Built by Clevite, a well-known engine parts manufacturer.

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Will this fit your vehicle?

Product Details

This set of Clevite connecting rod bearings is built to the original specifications for many GM passenger cars and trucks. These bearings are crucial for the proper function of your engine's crankshaft, allowing the connecting rods to rotate smoothly within the crankcase. They are designed to handle the pressures and heat generated during normal engine operation, helping to prevent premature wear on your engine's rotating assembly.

The CB1878A20(4) set features a specific material composition and a 0.020 inch undersize, which is important to note if you are working with a crankshaft that has been previously machined. This undersize allows for a proper fit on a crankshaft that has been ground down to a common repair size. Clevite has been a well-known name in engine bearings for a long time, and these are a solid option for rebuilding or repairing your engine.

This set fits a wide variety of GM vehicles, including popular models like the Chevrolet S10, Buick Century, and Pontiac Firebird, spanning many years of production. Always double-check the fitment guide to ensure these bearings are the correct size and application for your specific vehicle.