2002-2014 Subaru WRX
2004-2018 Subaru STI
ACL TRI-METAL MAIN BEARINGS- 02-14 WRX / 04+ STI
ACL's Tri-Metal main bearings are made of a softer metal so that you don't wear out your crank or engine block. Additionally, a thin layer of oil lubricates the connection between the bearings and the crank allowing the crank to "float" and reduce wear. Proper support via main bearings is crucial to prevent oscillations and wear that can damage the crankshaft and other components as the motor moves further out of balance.
Subaru main bearings are specific to either a #3 or #5 journal bearing position.
Please confirm prior to purchasing.
Bearings cannot be returned if packaging is opened.
Set of 10 Main Bearings