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USD 149.95
Part #: BSTISK975KIT

Bostech ISK975KIT Billet Fuel Filter Cap & Test Kit

2003-2007 Ford 6.0L Powerstroke
Part #: BSTISK975KIT
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The Bostech ISK975KIT Billet Fuel Filter Cap & Test Kit does more than increase the underhood aesthetics on your 2003-2007 Ford 6.0L Powerstroke. This aluminum fuel filter cap features a durable, high-quality design. Over time, the factory-equipped plastic fuel filter cap can become damaged or brittle causing air leaks and other fuel system issues. For diagnostic testing, Bostech also includes a fuel pressure gauge, hose and fitting so you can install the fuel pressure gauge to the pre-installed schrader valve for diagnostic testing. 


  • Billet Aluminum Construction
  • Direct Replacement For Factory Cap 
  • Built-In Schrader Valve For Fuel Pressure Monitoring
  • Includes Billet Fuel Filter Cap & Fuel Pressure Gauge 
  • 13 Month Unlimited Mileage Warranty

Vehicle Applications

2003 Ford 6.0L Powerstroke
2004 Ford 6.0L Powerstroke
2005 Ford 6.0L Powerstroke
2006 Ford 6.0L Powerstroke
2007 Ford 6.0L Powerstroke


  • MFG. Number ISK975KIT
  • Manufacturer Name Bostech
  • Shipping Weight 5.00 lb.
  • Shipping Length 4 in.
  • Shipping Width 4 in.
  • Shipping Height 4 in.
  • Warranty Yes
  • Warranty Info 13 Month / Unlimited Mileage
  • Prop 65 Prop 65 WarningWARNING: Cancer & Reproductive Harm -
  • Internal L0.00R0.00


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Questions and Answers

Is the fuel pressure gauge installed with the cap or just used separately whenever pressure needs to be checked?
View Staff Answer 

The fuel pressure gauge is only to be installed when diagnostic testing is required.

What are folks using as far as thread sealant for the valve to cap? I assume some thread sealant is advised for where the fitting screws into the cap, what is recommended?
View Staff Answer 

We would advise you to use a Teflon tape that is designed for diesel fuel/gasoline.

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