• Main bearing set with #3 thrust position
• Precision-engineered clearances for consistent oil film
• Genuine Manley engine building components
• Direct replacement for factory main bearings

The Foundation the Whole Bottom End Relies On

Main bearings support the crankshaft itself, and they're one of the most critical yet least glamorous components in any engine build, quietly determining how well the crank is supported and how consistently oil film is maintained under load. Manley engineers this set with precision clearances specifically for the EJ platform's main bearing journals, including the correct thrust bearing at the #3 position where Subaru's factory design places it. Getting this clearance right matters enormously for long-term bottom-end durability, especially once you're building toward real power. That's exactly the kind of thoughtful design worth paying for.

Genuine Manley Engine Building Quality

As a component from Manley's broader engine building catalog, this bearing set reflects the same manufacturing standards Manley applies to their connecting rods and other rotating assembly parts. That consistency across a build using multiple Manley components is a real advantage when you want every part of the bottom end engineered to work together. It's a dependable, foundational choice for anyone doing a genuine engine rebuild. For a component this critical, that level of engineering is worth having.

Straight From Subispeed

A genuine, precision-engineered main bearing set for 2002-2005 WRX — the quiet foundation a serious engine build depends on.

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