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

The +0.25mm sizing, also noted as +0.002 inches, indicates that these bearings are intended for use when the engine's main bearing journals have been machined to be 0.25mm larger than their original size. This is a common practice during engine rebuilding to ensure proper clearance.

What material are these bearings made from?

These main bearings are constructed from a bi-metal aluminum material with a lead-free composite. This combination is chosen for its suitability in medium-load engine applications.

Are these bearings suitable for all Subaru EJ engines?

This specific bearing set is designed for Subaru EJ20, EJ22, and EJ25 engine codes. Always confirm your specific engine code and the required bearing size before purchasing.

Specifications

Brand: King Engine Bearings
Part #: MB5739SI0.25
UPC: 611500610233

King Engine Bearings Subaru Ej20/Ej22/Ej25 Housing Bore + .002 (Size +0.25mm) Main Bearing Set

Name: King Engine Bearings Subaru Ej20/Ej22/Ej25 Housing Bore + .002 (Size +0.25mm) Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-subaru-ej20-ej22-ej25-housing-bore-002-t14-770926
Price: 117.08 USD
Availability: BackOrder

$117.08

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King Engine Bearings Subaru Ej20/Ej22/Ej25 Housing Bore + .002 (Size +0.25mm) Main Bearing Set. Direct fit for Subaru EJ engines.

Key Features

This set includes main bearings for Subaru EJ20, EJ22, and EJ25 engines.
Bearings are sized +0.25mm (+0.002 inches) over the standard housing bore.
Constructed with a bi-metal aluminum material.
Features a lead-free composite, making it environmentally safe.
Designed for medium-load engines.
Verified fitment for many Subaru and Saab vehicles including Forester, Impreza, and Legacy.

⚠️ 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

When you're rebuilding the bottom end of your Subaru EJ20, EJ22, or EJ25 engine, this Main Bearing Set from King Engine Bearings is what you'll need. This set includes the main bearings, sized at +0.25mm (which is +0.002 inches over the standard bore size), designed to fit a range of Subaru and Saab models like the Forester, Impreza, and Legacy.

King Engine Bearings specializes in making just bearings, and they've been doing it since 1960. These particular bearings are made from a bi-metal aluminum material and feature a lead-free composite. This construction is ideal for medium-load engines, offering a well-built component for your rebuild. The +0.25mm sizing means these are intended for use when the main bearing journals have been machined to that specific size.