The Powerstroke uses high pressure oil to activate the injectors. At start-up, the high pressure pump (HPOP) draws oil from the reservoir to start the engine, and the low pressure pump is refilling the reservoir with unfiltered oil until there is engine oil lube pressure. This allows a small amount of dirty oil from the oil pan to reach the HPOP and the injectors every time the truck is started. Small fine debris will pass fairly easily, but larger debris can cause pump or injector damage. In mid year 1999 (Engine Serial Number 1039779), Ford integrated a filter screen into the front cover gasket to catch any large debris before entering the HPOP. This new "gasket" with integrated filter CANNOT be retrofitted into an older engine as the front engine cover was machined differently to accommodate it. If you do use this gasket accidentally, you will crack the front cover causing a very expensive repair bill.
ADDITIONAL FILTRATION
Increases reservoir capacity
Adds filter screen to 1996 (Engine Serial Number 201681) Through Mid 1999 (Engine Serial Number 1039779) 7.3L Engines
Factory fuel filter (1999-2003) housing still bolts in place, but minor relocation of the lines are needed.
Comes complete will all items shown - new gaskets and all hardware for installation.
