Marine Circulating Water Pump for Chevy (GM) Small Blocks Replaces 8503991, 17437, 3853850

Marine Circulating Water Pump for Chevy (GM) Small Blocks Applications for Mercruiser, OMC, Volvo and Pleasurecraft This is a new pump, not remanufactured. MADE IN USA. Replaces: Mercruiser 8503991, 17437 (old 60658), OMC 3853850 (old 985429), Volvo 3853850-0, 835390-6, 856364-5, Pleasurecraft PN RA057018. Features a stainless steel shaft and non-corrosive brass, bi-directional impeller (can be used on either clockwise or counter-clockwise rotating engines). Fits late-model Chevy (GM) small block V6 and V8 engines with composite timing cover (229, 262, 305, 350 cid -- 3.8, 4.3, 5.7L). Comes with gaskets.