What does '0.25' mean for these bearings?

The '0.25' indicates that these bearings are 0.25mm undersize. This means they are intended for use with a crankshaft that has been machined down by 0.25mm. This ensures proper oil clearance when rebuilding or upgrading an engine.

What is the pmax Black racing line?

The pmax Black racing line from King Engine Bearings features a tri-metal construction. These bearings are built to withstand the higher loads and temperatures typically encountered in performance and racing engine applications.

Are these bearings suitable for a stock engine rebuild?

While these are high-performance bearings, they are specifically part of King's racing line. For a standard stock rebuild, you might consider a different bearing series. These are best suited for engines that will be operated under more demanding conditions.

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Specifications

Brand: King Engine Bearings
Part #: MB7008XP0.25
UPC: 611500553158

King Engine Bearings Nissan 2.5L RB25DET 24V (Size 0.25) Performance Main Bearing Set

Name: King Engine Bearings Nissan 2.5L RB25DET 24V (Size 0.25) Performance Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-nissan-2-5l-rb25det-24v-size-0-25-perf-t14-364872
Price: 153.29 USD
Availability: BackOrder

$153.29

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King Engine Bearings RB25DET 24V main bearing set. Size 0.25. Performance pmax Black racing line.

Key Features

This is a main bearing set for Nissan RB25DET 24V engines.
The bearings are 0.25mm undersize, suitable for a machined crankshaft.
Features King's pmax Black racing line with tri-metal construction.
Designed for performance applications.

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About this part

Product Details

This is the King Engine Bearings main bearing set for your Nissan RB25DET 24V engine. You get the main bearings, sized 0.25mm undersize, which are part of King's pmax Black racing line. These bearings are built for performance applications where the engine will be pushed harder than stock.

The pmax Black bearings feature a tri-metal construction, designed to handle the increased loads and temperatures found in performance engines. This particular set is 0.25mm undersize, meaning it's intended for crankshafts that have been machined down by that amount to ensure a fresh, perfectly sized surface for the new bearings to run on. This is a common practice when rebuilding or upgrading a performance engine to achieve optimal clearances and oil control.