MerCruiser 77226 470 170hp 3.7L 4cyl 3" Heat Exchanger Bracket Mount 1976-1982 Exhaust Tubes 150hp 1500 115hp 1150

150hp 1500 115hp 1150

78890T Used in 120hp 2

96273A6 was used with engines that had the cast coupler (round one that bolts directly flywheel studs) < That's what type this is

but not 100% accurate

MerCruiser 77226 470 170hp 3.7L 4cyl 3" Heat Exchanger Bracket Mount 1976-1982 Exhaust Tubes 150hp 1500 115hp 1150Item Details Removed from a 1976 1979 MerCruiser 470 S N 5064860 Overall Good Condition Parts Included Heat Exchanger Mounting Bracket 77226 Compatibility For the most part it seems these parts were used from 1976 1982 on 470 models that used a 3" Heat exchanger ****(not the larger 4" model)**** 1976 1977 1978 1979 1980 1981 1982 Alpha One 470 4 cyl 165hp 170hp 180hp 190hp 3. 7L 3. 7LX 224CID 488 485 Sterndrive