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ATS Fuel Rail Pressure Plug - 04.5-20 Duramax

Thoroughbred Sku #: ATS7050504290
Manufacturer Sku #: 7050504290

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Install Sheet - PDF:
Prop 65:
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Product Details

Product Name: ATS Fuel Rail Pressure Plugs
Manufacturer: ATS
Manufacturer Part #: 7050504290
Thoroughbred Diesel Part #: ATS7050504290
Fitment Notes: 2004.5-2020 GM

Having issues with rail pressure sustaining while under a load? The factory fuel pressure relief valve can weaken over time causing the valve to pop open at a lower pressure than desired or even hang open and drain your rail.

With the rail pressure plug installed you are going to prevent the factory relief valve from opening too soon and dropping your fuel pressure helping you achieve your desired rail pressure.

ATS Fuel Rail Pressure Plug for GM is now avalable at Thoroughbred Diesel.


  • Fuel Rail Pressure Plug
  • Easily check fuel pressures at the rail
  • Steel Construction
  • Sold Individually


  • Do you sale parts at the Winchester location or all parts online only .

    John Duncan | 4/10/2020

    We have a lot of parts here in Winchester but not all.  We do walk in sales as well as online.  Right now during Covid 19 pandemic,  our showroom is closed but you can still come here and pickup parts.

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