We suggest the oil pump be replaced any time a block is replaced due to mechanical failure.
The 11mm pump flows a higher volume of oil, and is considered an upgrade compared to the older 10mm, although there is much debate online about which is superior, and under what circumstances.
The Subaru JDM OEM 12mm oil pump is a genuine factory designed part for increased output, increased volume capabilities required for high RPM performance engines found in the Subaru WRX and STI.
These fit all EJ20 and EJ25 motors, which means 2002-2014 WRX, 2004+ STI, 2004-2012 Forester XT, and 2005-2009 Legacy GT/Outback XT.
SKU#: 04428, 06578, 11886
Shipping Weight: 3.0 lb
Category: Lubrication System