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This is an Original Chevrolet (GM) water pump used onW-block348 enginesin1957-58. The Casting Number on this pump is #3732750. Thewater pump in the photois dated (1xx)1958.
This water pump has been rebuilt to original specs with a new bearing, seal, backplate gasket,a reconditioned impeller and hub. Engine mount gaskets included. 1 year warranty.