Water Neck, O-ring Sealing Style, Aluminum, Natural, 186 degree Thermostat, Buick, Cadillac, Chevy, GMC, Each
ACDelco water necks fit your GM just like the originals. When you need to restore the efficiency of your water inlet/thermostat housing, these quality replacements fix your issues with leak-free performance and peace of mind. You can be assured that not only the fit, but the function will be just as expected. Replace your water necks with one of the same from ACDelco.