What does the +0.50mm sizing mean for my engine?

The +0.50mm sizing indicates that these bearings are intended for a crankshaft that has been machined down by 0.50mm. This is typically done to correct for wear or damage on the original crankshaft journals.

What is King's unique overlay technology?

King's unique overlay technology refers to a specific bearing surface treatment designed to manage the oil film effectively and reduce friction. This overlay has a maximum thickness of .0005 inches.

Do these bearings come with installation instructions?

While these bearings are designed as a direct replacement, it is always recommended to consult the specific service manual for your Subaru engine model. This will provide detailed instructions on proper installation, torque specifications, and assembly procedures.

Specifications

Brand: King Engine Bearings
Part #: MB5220SI1.5
UPC: 611500623479

King Engine Bearings Subaru Ej20/Ej22/Ej25 (Incl. Turbo) (Size +0.50mm) Main Bearing Set

Name: King Engine Bearings Subaru Ej20/Ej22/Ej25 (Incl. Turbo) (Size +0.50mm) Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-subaru-ej20-ej22-ej25-incl-turbo-size--t14-770539
Price: 43.64 USD
Availability: BackOrder

$43.64

On Backorder

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

King Engine Bearings Subaru EJ20/EJ22/EJ25 (Incl. Turbo) (Size +0.50mm) Main Bearing Set

Key Features

This is a +0.50mm main bearing set for Subaru EJ20, EJ22, and EJ25 engines.
Features King's unique overlay technology with a .0005" maximum thickness.
Includes a hardened steel backing for added strength and durability.
Helps manage oil film and reduce friction within the engine.

Secure CheckoutFast Shipping631-982-0042

About this part

Product Details

If you're rebuilding the bottom end of your Subaru EJ20, EJ22, or EJ25 engine, whether it's naturally aspirated or turbocharged, a fresh set of main bearings is crucial. These King Engine Bearings are designed to be a direct replacement, helping to ensure proper crankshaft support and oil clearance during the critical break-in period and beyond.

This set is specifically sized at +0.50mm, meaning it's intended for crankshafts that have been machined down by 0.50mm to correct for wear or damage. King uses a unique overlay technology with a .0005" maximum thickness and a hardened steel backing for strength. This construction helps manage oil film and reduce friction, contributing to the longevity of your engine build.

When installing these bearings, always refer to the manufacturer's service manual for the correct torque specifications and assembly procedures. Proper installation is key to achieving the intended performance and durability from your new engine components.