What does the '.25' sizing mean for these main bearings?

The '.25' in the part number indicates that these bearings are 0.025 inches undersize. This means they are intended for use when the engine's crankshaft main journals have been machined down by 0.025 inches from their original size.

What is the 'p-max Black' racing line?

The p-max Black racing line from King Engine Bearings features a tri-metal construction. This design is optimized for high-performance engines, offering improved strength and wear resistance to handle increased loads and demanding operating conditions.

Are these bearings suitable for a stock engine rebuild?

While these are performance bearings, they can be used in a stock rebuild if the crankshaft has been professionally machined to the correct undersize. For a completely stock, unmachined crankshaft, you would need a standard size bearing set.

Specifications

Brand: King Engine Bearings
Part #: MB5286XP0.25
UPC: 611500556760

King Engine Bearings Toyota 1UZ-FE/2UZ-FE/3UZ-FE (Size .25) Performance Main Bearing Set

Name: King Engine Bearings Toyota 1UZ-FE/2UZ-FE/3UZ-FE (Size .25) Performance Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-toyota-1uz-fe-2uz-fe-3uz-fe-size-25-pe-t14-45143
Price: 205.07 USD
Availability: BackOrder

$205.07

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King Engine Bearings XP0.25 main bearing set for Toyota/Lexus 1UZ-FE, 2UZ-FE, 3UZ-FE engines. These performance bearings are built for demanding applications.

Key Features

Fits 1998-2000 Lexus GS400, 2003-2009 Lexus GX470, 1990-2000 Lexus LS400, 1998-2007 Lexus LX470, 1992-2000 Lexus SC400, 2003-2009 Toyota 4Runner, 1998-2007 Toyota Land Cruiser, 2001-2009 Toyota Sequoia, and 2000-2009 Toyota Tundra.
This is a .25 undersize bearing set, intended for crankshafts machined to 0.025 inches smaller than standard.
Features King's p-max Black racing line tri-metal construction for enhanced strength and durability.
Designed for high-performance applications, offering improved load capacity and wear resistance.

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About this part

Product Details

If you're working on a Toyota or Lexus V8 engine like the 1UZ-FE, 2UZ-FE, or 3UZ-FE, these King Engine Bearings performance main bearing set is a solid option. This set is specifically sized at .25, meaning it's designed for engines that have been machined to a 0.025 inch undersize on the main journals. These bearings are part of King's p-max Black racing line, which uses a tri-metal construction for improved strength and durability under high loads.

The p-max Black bearings are well-built with a focus on performance. Their tri-metal structure offers a good balance of strength and conformability, helping to protect your crankshaft and ensure proper oil clearance. This makes them a popular choice for builders looking for reliable internal engine components for their Toyota or Lexus V8 project. They fit a range of vehicles including the Lexus GS400, Toyota Tundra, and Toyota Land Cruiser from various years.