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Diesel High Pressure Oil Pump "Non-Servicable Plug" Ford Powerstroke 7.3L Navistar T444E 1994-2003

Diesel High Pressure Oil Pump Repair Plug Part # Isk636

Diesel High Pressure Oil Pump Seal Kit Part # ISK636

UPC: 086547478878

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Diesel High Pressure Oil Pump "Non-Serviceable Plug"

If your High Pressure Oil pump is leaking from the Bottom port. This port is called the Non-Serviceable Port. It is probably leaking because of the OEM Short thread plug. TamerX has the repair plug that will even repair a plug that is completely stripped the original threads. TamerX has these plugs made to exact standard using 303 stainless steel.

To service this plug we recomend removing the pump from vehicle. This will require the need for a new mounting gasket TamerX Part # ISK795. On the 1999-2003 Models it will be easier to remove the fuel filter Canister.  This will require replacing of the four Vibro-Lok seals TamerX Kit # ISK602.



  • 1 long stread Non Serviceable Port Plug
  • 1- .5ML 680 Loctite
  • 1- Viton Oring



  • Ford Powerstroke 7.3L 1994-2003
  • Navistar International T444E 1994-2004
  • Navistar International DT466 1995-2004



Two Year 1,000,000 Miles

Feature and Benefits

Additional Info

Part Number ISK636
Make Ford/Navistar
Model F250,F350,F450,F550,F650,F750,E350,E450,E550, 4300,
Year Range 1994-2004
Engine Powerstroke 7.3L, T444E
OEM Number ISK636
Product Type High Pressure Oil Rail Repair Kit
Warranty 12 Months Unlimited 1 Million Miles Follow Link for details
OEM # ISK636

Cross Reference Numbers

Cross Reference Numbers

OEM # ISK636


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