7122L - Radiator Pressure Adapter - 52mm x 2.5mm LH - GM/GMC

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Designed for the L5P Diesel engine with two tank caps One cap is located on the side of the tank (Vented) with right-hand threads The other is located on the top of the tank (non-v ented) with left-hand threads GM designed this to eliminate any chance of installing the non-vented cap where a vented cap is required ATTENTION (Our adapter is designed for tank with Left-handed threads) O-rings on the center core seal off the tank vent port for proper testing Compare to GM factory tool GE-52098-A See application tab for details See 7124 for set of left and right-hand thread adapters Click here for complete application chart on the Radiator Pressure Tester Adapter Range Applications MAKE MODEL YEAR Chevrolet Silverado 2017+ GMC Sierra w/ Duramax 2017+ Show more