A new water pump for your 2011-2013 WRX is a must whether your are performing standard maintenance, rebuilding your motor, or doing a full engine swap. The OEM Subaru water pump is manufactured by Gates Automotive and includes all the necessary gaskets and hardware saving you the hassle of multiple trips to the dealer or messy leaks due to poor seals. Give yourself added peace of mind with a fresh water pump when changing your timing belt.