ACL High Performance Standard Size Main Bearing Set, #5 Thrust Bearing Position Subaru WRX 2002-2014 / STI 2004-2021 | 5M8309H-STD vendor_Stop Tech Keep hazardous fluids out of

Keep hazardous fluids out of the passenger compartment by using electronic senders (included)

low tension oil rings

Please be sure of what transmission you have before placing your order

Please confirm vehicle fitment as D770 replacement before purchasing

ACL High Performance Standard Size Main Bearing Set, #5 Thrust Bearing Position Subaru WRX 2002-2014 / STI 2004-2021 | 5M8309H-STD vendor_Stop Tech Keep hazardous fluids out ofACL'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