GlowShift’s Fuel Pressure Thread Adapter for a GM 6.5L Turbo Diesel engine takes the effort out of installing a fuel pressure sensor into your GM 6.5L Turbo Diesel. That’s because this adapter allows you to easily install your aftermarket fuel pressure sensor into your stock 6.5L GM Turbo Diesel engine in minutes without having to cut or modify the vehicle’s fuel system. The fuel pressure adapter replaces the factory plastic fuel filter bleeder valve with an easy to use adapter that allows the 1/8-27 NPT electronic fuel pressure sensor to easily install to the filter. The flexibility this fuel pressure gauge adapter gives you is vital because your ability to install the fuel pressure sensor into the existing factory fuel system not only simplifies the process but also eliminates the need to make any major changes to your vehicle. GlowShift also includes unlimited tech support and a one-year limited warranty with each purchase.