Do I need a Chevy GM Duramax 6.6L Diesel Fuel Pressure Adapter?

Yes, you will need this adapter to install our fuel pressure sensor as the thread size is not the same on the bleeder screw next to the fuel filter housing. GlowShift’s Fuel Pressure Adapter is specifically designed for the GM Duramax 6.6L Diesel. This adapter replaces the factory bleeder screw with a 1/8npt adapter to easily install your fuel pressure sender. M10 – 1.5 to 1/8npt Thread.

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