What does the +.025mm size mean for these bearings?

The +.025mm designation indicates that these bearings are slightly larger than the standard size. This is typically used to compensate for minor wear on the crankshaft or to achieve a specific, tighter oil clearance in a performance engine build.

What is the 'pmax black' racing line?

The 'pmax black' racing line refers to King Engine Bearings' specific high-performance bearing technology. These bearings are engineered with advanced materials and designs to handle the increased stress and demands of racing applications.

Are these bearings suitable for a daily driver engine rebuild?

While these are high-performance racing bearings, they can be used in a daily driver rebuild if you are aiming for a very specific engine build or have a worn crankshaft. For a standard daily driver rebuild, a non-racing line bearing might be more appropriate.

Specifications

Brand: King Engine Bearings
Part #: MB5595XP.026
UPC: 611500608858

King Engine Bearings Nissan KA-24DE Performance Main Bearing Set - Size +.025mm

Name: King Engine Bearings Nissan KA-24DE Performance Main Bearing Set - Size +.025mm
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-nissan-ka-24de-performance-main-bearin-t14-168830
Price: 130.46 USD
Availability: BackOrder

$130.46

On Backorder — Expected to ship by Sep 16, 2026

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

King Engine Bearings Performance Main Bearing Set for Nissan KA24E engines. Size +.025mm. For racing applications.

Key Features

Fits Nissan KA24E engines.
Performance main bearing set from King Engine Bearings.
Features the pmax black racing line construction.
Built with a tri-metal material for improved load capacity.
Size is +.025mm, suitable for performance builds or worn cranks.
Compatible with various Nissan models including 240SX, Altima, Frontier, and Xterra.

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About this part

Product Details

If you're rebuilding the bottom end of a Nissan KA24E engine, especially for racing, this King Engine Bearings Performance Main Bearing Set is a solid option. These are the pmax black racing line bearings, designed for higher performance demands than stock.

These main bearings are built with a tri-metal construction, which is a common choice for performance applications because it offers good load-carrying capacity. They are specifically sized at +.025mm, meaning they are slightly larger than standard to account for crankshaft wear or to achieve a specific clearance in a performance build. This set is designed to fit a range of Nissan vehicles using the KA24E engine, including models like the 240SX, Altima, and Frontier.