Air Intake Heater Boost Plug Thread Adapter

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    30 DayNo Hassle Returns

  • Free Shipping Over $50

    Free Shipping Over $50Contiguous USA

  • Free In-House Support

    Free In-House Support

  • One Year Limited Warranty

    One Year
    Limited Warranty


GlowShift Air Intake Heater Boost Plugs are designed specifically for the 1999.5-2002 Ford Super Duty 7.3 Powerstroke and 2001-2004 6.6L GM Duramax LB7. Read your truck’s boost levels without having to make any permanent modifications to your truck. This intake air heater boost plug replaces the air intake heater and eliminates the need to drill and tap the intake manifold. The female 1/8-27 NPT thread makes it possible to install an electronic boost pressure sensor or fittings directly to the boost plug for extremely accurate readouts. The thread adapter size is Female 1/8-27 NPT to Male m22 x 1.5.


  • 1999.5-2002 Ford Super Duty 7.3L Power Stroke
  • 2001-2004 6.6L GM Duramax LB7

    • GlowShift Guarantee
      GlowShift includes Free Lifetime Technical Support and a One Year Limited Warranty with every purchase.

      • Air Intake Heater Boost Plug Thread Adapter
      • Female 1/8-27 NPT to Male m22 x 1.5 Threads
      • Install a Boost Sensor or Fittings
      • Avoid Major Modifications
      • Free Lifetime Tech Support
      • One Year Limited Warranty
      • Installation Instructions
    Tech Specs
    Female Thread: 1/8-27 NPT
    Engine: 7.3L Power Stroke
    Engine: 6.6L Duramax
    Gauge Type: Boost

    Includes an installation guide which is available online and included with your order. You can also visit our library of installation videos which include complete step-by-step tutorials and useful tips on how to install a wide range of GlowShift products.

    Download and Print the PDF PDF Instructions View Our Help Center Help Center