ACL High Performance Standard Size Main Bearing Set, #5 Thrust Bearing Position Subaru WRX 2002-2014 / STI 2004-2021 | 5M8309H-STD vendor_Brian Crower 543 D770 replacement

543 D770 replacement

and upgrades to the vehicles fuel pressure regulator

You know it's going to deliver performance gains and sound great doing it

Carbon-Graphite Friction Material

Lightweight Durable 1

ACL High Performance Standard Size Main Bearing Set, #5 Thrust Bearing Position Subaru WRX 2002-2014 / STI 2004-2021 | 5M8309H-STD vendor_Brian Crower 543 D770 replacementACL's 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. Bearings with extra oil clearance will