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

The +0.25mm designation means these bearings are slightly larger than standard size. They are intended for use when the engine's crankshaft journals have been machined down by 0.25mm during an engine rebuild.

Are these bearings suitable for high-performance or racing engines?

These bearings are described as ideal for low to medium-load engines. For high-performance or racing applications, you may want to consult King Engine Bearings' catalog for their heavy-duty or performance-specific bearing lines.

What is the material composition of these bearings?

The bearings are made from a bi-metal aluminum material and feature a lead-free composite overlay. This combination is designed to be environmentally safe and perform well in less demanding engine applications.

Specifications

Brand: King Engine Bearings
Part #: MB4011AM0.25
UPC: 611500306013

King Engine Bearings Toyota 1Mzfe (Size +0.25mm) Main Bearing Set

Name: King Engine Bearings Toyota 1Mzfe (Size +0.25mm) Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-toyota-1mzfe-size-0-25mm-main-bearing--t14-770307
Price: 41.73 USD
Availability: BackOrder

$41.73

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King Engine Bearings Toyota 1Mzfe (Size +0.25mm) Main Bearing Set. Lead-free composite bearings for low to medium-load engines.

Key Features

Fits 1994-2008 Lexus and Toyota vehicles with the 1MZFE engine.
Main bearing set is machined to a +0.25mm undersize for use after engine block machining.
Features a lead-free composite material that is environmentally safe.
Ideal for low to medium-load engines.
Constructed with a bi-metal aluminum material for reliable performance.
A specialized product from King Engine Bearings, focusing on bearing quality since 1960.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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About this part

Product Details

If you're rebuilding the bottom end of your Toyota 1MZFE engine, getting the right main bearings is crucial for a smooth-running motor. This set from King Engine Bearings is specifically made for engines that have been machined to a +0.25mm undersize, ensuring a precise fit after machining work. King has been focused on making bearings since 1960, so they know what it takes to build a solid component for your engine.

These bearings use a lead-free composite material that's environmentally safe and ideal for engines that don't see extreme loads. The bi-metal aluminum construction offers good performance for everyday driving and moderate use. They fit a wide range of popular vehicles, including models like the Toyota Camry, Lexus ES300, and Toyota Highlander, making them a solid option for many rebuild projects.