The DieselSite HPOR is the O-ring set for the high-pressure oil pump and the IPR on a 1994–2003 7.3 Powerstroke. It is one bag for both jobs. A packet of Loctite is included. The pump, the IPR, and the mounting gasket are not.

Those rings are what weep in the valley after the pump or the regulator has been out. A hard ring also bleeds the oil the injectors need, which shows up as low ICP and a hard start. Use it any time the HPOP or the IPR comes off. It covers the same seals as the Alliant AP0011 and AP0003 kits in one set.

It fits 1994–2003 F-Series, E-Series, and Excursion 7.3 trucks. It is not the reservoir gasket and not the pump-to-cover gasket.

Fitment

• 1994–2003 Ford 7.3L Powerstroke
• HPOP and IPR O-rings
• Loctite included
• Pump and IPR not included
• Seals only

Order the mounting gasket with it if the pump is coming off. That is Ford F6TZ-9417-AA or Mahle B32600. This set does not include that gasket.