King Engine Bearings Subaru EZ30/EZ30D Performance Main Bearing Set - Size STDX

If you're rebuilding the engine in your 2001-2009 Subaru Outback, Legacy, or B9 Tribeca, this performance main bearing set from King Engine Bearings is a solid choice. These bearings are built with a tri-metal copper-based material, which is a strong foundation for handling the demands of an engine rebuild. King specializes in bearings, and they've developed specific technologies to improve their performance and durability.

This set features King's PMaxBlack overlay, which is designed to handle superior load capacity, meaning these bearings can take more stress without failing. They also incorporate Radialock technology, which helps achieve an optimal crush height. This is important because proper crush height ensures the bearing seats correctly in the engine block and connecting rod, which is key for oil flow and preventing bearing spin.

This particular set is sized STDX, which is a specific undersize measurement for the crankshaft journals. Always ensure this is the correct size for your specific crankshaft grinding before installation. King Engine Bearings has been making quality engine bearings since 1960, focusing solely on this critical component.