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This Peterson Fluid Systems oil inlet fitting (-12AN x 3/8 NPT x 3.1") in steel allows oil input at the front of the block over the water pump on small-block Chevy engines. The adapter converts a -12AN inlet to a 3/8 NPT pipe connection with a 3.1-inch length to place the oil feed where a front-of-block installation is needed.
Peterson Fluid Systems Oil Inlet Fitting -12AN x 3/8 x 3.1
