What is the benefit of the 360-degree oil groove on these bearings?

The 360-degree oil groove helps to ensure a consistent supply of oil flows around the entire crankshaft journal. This improved oil distribution is key to reducing friction and maintaining stable oil pressure, especially under load.

What makes the SI-Series overlay different?

The SI-Series bearings utilize a specialized overlay that King Engine Bearings developed for improved wear resistance. This is particularly beneficial for engines that have been modified or are subjected to higher operating temperatures and loads.

Does this set include everything needed for the main bearings?

Yes, this is a complete set of five main bearings for the Subaru EJ20, EJ22, and EJ25 engines. You will have all the necessary bearings to properly support the crankshaft.

Specifications

Brand: King Engine Bearings
Part #: MB5382SI
UPC: 611500623370

King Engine Bearings Subaru EJ20/EJ22/EJ25 (Including Turbo) SI-Series Main Bearing (Set of 5)

Name: King Engine Bearings Subaru EJ20/EJ22/EJ25 (Including Turbo) SI-Series Main Bearing (Set of 5)
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-subaru-ej20-ej22-ej25-including-turbo--t14-392975
Price: 40.47 USD
Availability: InStock

$40.47

In Stock

Key Features

Fits Subaru EJ20, EJ22, and EJ25 engines, including turbocharged models.
SI-Series main bearings feature a 360-degree oil groove for improved oil distribution.
Specialized overlay offers enhanced wear resistance for demanding applications.
Designed to maintain consistent oil pressure and reduce friction.
Set includes all five main bearings required for engine assembly.
Direct fit for factory main bearing locations.

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About this part

Product Details

The SI-Series main bearings from King Engine Bearings feature a unique 360-degree oil groove. This design helps distribute oil more evenly around the crankshaft journal, which is crucial for maintaining consistent oil pressure and reducing friction, especially in high-performance or modified Subaru EJ engines like the EJ20, EJ22, and EJ25.

These bearings are built with a specialized overlay that offers improved wear resistance compared to standard bearings. The overlay's composition is designed to handle the increased loads and heat that can occur in turbocharged or performance-tuned EJ engines. King has been making bearings for a long time, and their experience shows in how well these hold up under demanding conditions. They fit right into the factory main bearing locations, making installation straightforward for anyone rebuilding or refreshing their Subaru's bottom end.

This set includes all five main bearings needed to complete the job on your Subaru EJ engine. Ensuring proper crankshaft support and lubrication is key to the longevity and performance of these popular boxer engines.