What is the material of these main bearings?

These main bearings are constructed with a bimetal design, featuring an aluminum base. This construction is chosen for its heat management properties and durability.

Are these bearings a direct replacement for the original equipment?

Yes, this set is designed as a direct replacement for the main bearings in the specified Nissan RB20 and RB30 engines. They are standard size, meaning they match the original dimensions.

What does 'standard size' mean for these bearings?

Standard size means these bearings have the original factory dimensions. They are intended for use when the crankshaft journals are still within their original specifications and have not been machined undersize.

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Specifications

Brand: King Engine Bearings
Part #: MB7008AM
UPC: 611500321009

King Nissan 122CI 2.0L RB24 / 152CI 2.5L RB25DE/RB25DET/RB25DETT (Size STD) Main Bearing Set

Name: King Nissan 122CI 2.0L RB24 / 152CI 2.5L RB25DE/RB25DET/RB25DETT (Size STD) Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-nissan-122ci-2-0l-rb24-152ci-2-5l-rb25de-rb25det-rb25d-t14-305872
Price: 77.00 USD
Availability: BackOrder

$77.00

On Backorder

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

King Nissan RB20, RB30 Main Bearing Set. Standard size for 2.0L RB24 and 2.5L RB25 engines.

Key Features

Fits Nissan RB20 and RB30 engines.
Standard size main bearing set.
Designed for 2.0L RB24 and 2.5L RB25DE/DET/DETT engine applications.
Bimetal construction with an aluminum base.

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About this part

Product Details

If you're rebuilding the engine in your Nissan RB20 or RB30, this King Engine Bearings Main Bearing Set is a solid choice. These are the main bearings, which support the crankshaft within the engine block. This set is standard size and designed for the 122 cubic inch 2.0L RB24 and 152 cubic inch 2.5L RB25DE, RB25DET, and RB25DETT engines.

King uses a bimetal construction with an aluminum base for these bearings. This design helps manage heat and provides a good surface for the crankshaft to rotate against. They fit right into the factory location, making installation straightforward for a rebuild project.