What size are these main bearings?

These main bearings are sized at +0.75mm undersize, which is also commonly referred to as O/S 010. This is an important measurement for engine rebuilding.

What kind of engines are these bearings best suited for?

These bearings are made with a lead-free composite material and are ideal for medium-load engines. The bi-metal aluminum construction provides a good balance for these applications.

Are these bearings compatible with all Chevrolet engines?

This specific bearing set is designed for Chevrolet 121Ci and 134Ci engines found in certain models like the Beretta, Cavalier, Corsica, and S10. It's crucial to verify the engine size and specific application for your vehicle.

Specifications

Brand: King Engine Bearings
Part #: MB5754SI0.75
UPC: 611500577628

King Engine Bearings Chevrolet 121Ci/Ln2 134Ci Fl O/S 010 (Size +0.75mm) Main Bearing Set

Name: King Engine Bearings Chevrolet 121Ci/Ln2 134Ci Fl O/S 010 (Size +0.75mm) Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-chevrolet-121ci-ln2-134ci-fl-o-s-010-s-t14-770939
Price: 59.47 USD
Availability: BackOrder

$59.47

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King Engine Bearings Chevrolet 121Ci/Ln2 134Ci Fl O/S 010 (Size +0.75mm) Main Bearing Set. Lead-free composite bearings for medium-load engines.

Key Features

This set includes main bearings for your engine rebuild.
Features a lead-free, environmentally safe composite material.
Ideal for medium-load engines.
Constructed with a bi-metal aluminum material.
This set is 0.75mm (0.030 inches) undersize, also known as O/S 010.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Will this fit your vehicle?

About this part

Product Details

This is a King Engine Bearings Main Bearing Set, part number MB5754SI0.75. This set includes the main bearings you need for your engine rebuild. These bearings are made with a lead-free, environmentally safe composite material, making them a solid choice for medium-load engines.

King Engine Bearings has been specializing in engine bearings since 1960, focusing on supplying well-built components. This particular set is sized at +0.75mm (0.030 inches) undersize, often referred to as O/S 010, which is important to note when rebuilding an engine. The bi-metal aluminum construction offers a good balance of strength and performance for many applications.

This bearing set fits a range of vehicles, including models like the Chevrolet Cavalier, GMC Sonoma, and Oldsmobile Cutlass Ciera. Always double-check your specific vehicle's requirements to ensure this is the correct size for your engine build.