What does the +1.0mm size indicate for these bearings?

The +1.0mm designation means these main bearings are 1.0 millimeter larger in diameter than the standard size. This is typically used when the engine's crankshaft journals have been machined down (ground) and require a larger bearing to achieve the correct clearance.

Are these bearings environmentally friendly?

Yes, these bearings feature a lead-free composite construction, making them an environmentally safe option. This aligns with modern environmental standards for engine components.

What kind of engines are these bearings best suited for?

These bearings are ideal for medium-load engines. Their bi-metal aluminum construction is designed to handle the stresses and operating conditions typical of such applications.

Specifications

Brand: King Engine Bearings
Part #: MB5557SI1.0
UPC: 611500458323

King Engine Bearings Chevrolet 121Ci/Ln2 134Ci (Size +1.0mm) Main Bearing Set

Name: King Engine Bearings Chevrolet 121Ci/Ln2 134Ci (Size +1.0mm) Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-chevrolet-121ci-ln2-134ci-size-1-0mm-m-t14-770824
Price: 37.15 USD
Availability: BackOrder

$37.15

On Backorder

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

King Engine Bearings Chevrolet 121Ci/Ln2 134Ci (Size +1.0mm) Main Bearing Set. Bi-metal aluminum construction for medium-load engines.

Key Features

Fits 11+ vehicle combinations including Chevrolet Cavalier, S10, and GMC Sonoma.
Main bearing set with a +1.0mm size.
Constructed from bi-metal aluminum material.
Features a lead-free, environmentally safe composite.
Ideal for medium-load engines.

⚠️ 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

Secure CheckoutFast Shipping631-982-0042

Will this fit your vehicle?

About this part

Product Details

Built with a bi-metal aluminum material, this main bearing set from King Engine Bearings is designed for medium-load engines. These bearings are a lead-free, environmentally safe composite, making them a solid choice for rebuilding or repairing your engine. They are specifically sized at +1.0mm, ensuring a precise fit for engines requiring this adjustment.

King Engine Bearings has specialized in engine bearings since 1960, focusing on supplying high-quality components. This particular set is well-suited for a range of Chevrolet, GMC, Isuzu, Buick, Oldsmobile, and Pontiac vehicles from the early 90s to early 2000s, including popular models like the Chevrolet Cavalier and S10. The lead-free composite construction offers a durable and reliable solution for your engine's bottom end.