MerCruiser 99438A1 4" 470 Heat Exchanger 170hp 4cyl 3.7L 488 165hp 1983-1989 Wiring Harness Item Details MerCruiser Propeller Shaft

Item Details MerCruiser Propeller Shaft 44-66060 / 44-824110 used in all MerCruiser R / MR/ Pre-Alpha Gen 1 Alpha 1 lower units 1970-1990 (some parts here were used a broader number of years)

Widely used in OMC 800 Stringer & Cobra Models 1981-1996 (Chevy GM (V6 & V8 3

but I'm not sure about the long one

1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990

There are arrows cast on the sides to tell direction

MerCruiser 99438A1 4" 470 Heat Exchanger 170hp 4cyl 3.7L 488 165hp 1983-1989 Wiring Harness Item Details MerCruiser Propeller ShaftItem Details Freshwater used part Overall good condition, original paint. This part has been tested for leaks and has new gaskets on both ends The Part number for The 4" heat exchanger is 99438A1 Found on all "470" models 1976 1989 Using a 4" heat exchanger, You can upgrade the earlier a 3" heat exchanger (found on the pre 1983 models) to a 4" if you swap the mounting bracket, and some of the hoses. 470 (2 BBL.) MERCURY 224 I L4 1976 1979 470 (2 BBL.)