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Fuel

  • PPE Fuel Pressure Relief Race Valve (1130730)

    Replaces stock or shimmed pressure relief valve. Completely blocks all fuel flow returning from the fuel rail (effectively deadheading fuel rail). Eliminates low fuel rail pressure diagnostic trouble codes (DTC) P1093 or P0087 (low fuel rail pressure...

    MSRP: $49.99
    $44.99
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  • AirDog II 165 (A5SABC109)

    AirDog II 165 (A5SABC109)

    DISCONTINUED PART NUMBER.  PLEASE SEE UPDATED INFORMATION AT: https://longhornfabshop.com/airdog-ii-165-4g-2001-2010-a6sabc409/ AirDog II 165 is recommended for your heavily modified Duramax, has an adjustable fuel pressure regulator, and DOES...

    MSRP: $776.00
    $690.00
  • Fuel Pressure Relief Race Valve (76200)

    Replaces stock or shimmed pressure relief valve. Completely blocks all fuel flow returning from the fuel rail (effectively deadheading fuel rail). Eliminates low fuel rail pressure diagnostic trouble codes (DTC) P1093 or P0087 (low fuel rail pressure...

    MSRP: $49.99
    $44.99
    Add to Cart
  • Complete Duramax Filter Head Rebuild Kit (10192)

    All the seals needed to rebuild your leaking fuel filter head! 2- U Shaped Seals 3- Internal seals 1- Bleeder screw seal LONGHORN FAB SHOP NOTE:  If you are experiencing no start conditions after the truck sits over night, or the truck starts and...

    MSRP: $25.99
    $19.99
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  • Duramax Fuel Filter Delete (DFD-4000)

    Duramax Fuel Filter Delete (DFD-4000)

    After the installation of a FASS or Airdog Fuel Air Separation System the factory fuel filter is no longer needed and can be easily removed by using this Factory Fuel Filter Delete Kit.   Longhorn Fab Shop Note:  These things are awesome! ...

    MSRP: $99.99
    $84.55
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  • Billet Air Bleeder Screw (5130810)

    This billet air bleeder screw replaces the weak black plastic one that is on top of the fuel filter housing. This screw is loosened and tightened everytime a fuel filter change is done to bleed air from the fuel system. After a few times, the plastic...

    $14.99
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  • PPE Fuel Pressure Relief Valve Shims (1130720)

    The shim kit effectively alters the spring tension in the pressure relief valve (PRV) increasing its “pop off” pressure, thus reducing fuel flow thru the fuel rail return system. Eliminates low fuel rail pressure diagnostic trouble codes (DTC) P1093 or...

    MSRP: $9.99
    $9.00
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  • MA WIF Plug (10051)

    Stronger than the stock plastic sensor Will not turn on a check engine light Fits your MA WIF Wrench Serviceable with your 3/8" drive ratchet Comes with a new o-ring   FAQ - Water in Fuel Delete Plug   Why would I want to remove the...

    $34.99
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  • WIF Sensor Wrench (5130800)

    Water in Fuel Sensor (WIF) Wrench is a perfect fit and will remove the WIF sensor with ease when doing fuel filter changes. Use the small end of this wrench to open and close the air bleeder screw to bleed any air out after changing fuel filter or...

    $24.99
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  • XDP DURAMAX WIF SENSOR DELETE PLUG (XD137)

    XDP DURAMAX WIF SENSOR DELETE PLUG (XD137)

    The XDP WIF Sensor delete plug XD137 is a quick and simple solution for replacing your weak plastic factory sensor.  FEATURES: Made from T6 Billet Aluminum 3/8" Ratchet drive for quick & easy replacement Made to work with XDP WIF and other...

    MSRP: $34.99
    $29.95
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