USA Manufacturer, The HPOP73MSK High Pressure Oil Pump Master Service Kit includes all the components you need to replace all seals and O-rings on your high-pressure oil pump and correctly reinstall the pump. Our kit includes many components you won't find in other HPOP seal kits on the market today along with a base mounting gasket, STC disconnect tool, and STC fittings. The included parts Part Numbers ISK635, ISK617, ISK795, and TL3. Kit Contains: 2- Discharge port O-Rings 1- Rear Port Plug O-Ring 1- Non- Serviceable Port O-Ring 1- IPR Valve O-Ring 1- IPR Nut 1- Fill Plug O-Ring 1- Non-serviceable port long threaded repair plug 1- Replacement Check Ball 1- Set of Repair instructions 1- .5ml Thread Sealer (Loctite) 2- Diesel High Pressure Oil Pump STC Fittings 1- STC Quick Disconnect Tool 1- High Pressure Oil Pump Mounting Gasket The HPOP73MSK High Pressure Oil Pump Master Service Kit is suitable for the applications listed below: Ford Powerstroke 7.3L: 1994-2003 International/Navistar DT466: 1995-2004 International/Navistar T444E: 1995-2004