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

The +0.25mm designation means these bearings are designed to be used when the crankshaft journals have been machined down by 0.25mm (or 0.010 inches). This is a common practice during engine rebuilding to ensure proper oil clearance.

What is the construction of these main bearings?

These bearings feature a bimetal construction with an aluminum base. This type of material is chosen for its good wear characteristics and ability to conform to the crankshaft.

Are these bearings sold individually or as a set?

This product is a main bearing set, meaning it includes all the necessary main bearings for a complete engine installation.

Specifications

Brand: King Engine Bearings
Part #: MB5520AM1.25
UPC: 611500198731

King Engine Bearings Opel C20Xe/X18Xe/X22Xe (Size +0.25mm) Main Bearing Set

Name: King Engine Bearings Opel C20Xe/X18Xe/X22Xe (Size +0.25mm) Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-opel-c20xe-x18xe-x22xe-size-0-25mm-mai-t14-770757
Price: 78.48 USD
Availability: BackOrder

$78.48

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King Engine Bearings main bearing set for Opel C20Xe/X18Xe/X22Xe engines. This +0.25mm set helps restore proper oil clearance.

Key Features

Fits Buick Skyhawk, Chevrolet Malibu, Daewoo Nubira, Oldsmobile Firenza, Pontiac J2000, Pontiac J2000 Sunbird, Pontiac LeMans, Pontiac Sunbird, Pontiac Sunfire, and Saturn Vue.
Main bearing set for Opel C20Xe, X18Xe, and X22Xe engines.
Features a bimetal construction with an aluminum base.
This set is sized +0.25mm, intended for use with crankshafts machined to that undersize.
Helps restore proper oil clearance in the engine's main bearing journals.

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About this part

Product Details

Built with an aluminum base, these main bearings from King Engine Bearings are a solid option for rebuilding your Opel C20Xe, X18Xe, or X22Xe engine. They are sized +0.25mm, which is important for restoring proper oil clearance when the crankshaft journals have been machined to that size during an engine rebuild. This set is designed to fit a range of vehicles, including models like the Buick Skyhawk, Pontiac Sunbird, and Saturn Vue.

The bimetal construction offers good wear resistance and conformability, crucial for handling the loads and temperatures within the engine's bottom end. King Engine Bearings is a well-known name in engine components, and this set is made to meet the needs of a performance-oriented rebuild or a reliable restoration. When you're putting your engine back together, getting the bearing clearances right is key to its longevity and performance.