MerCruiser 470 485 170hp 3.7L Heat Exchanger Cooling Hoses Set 32-77331 32-76326 Cooling System & Hoses 939 CUP dimension (standard-diameter of

939 CUP dimension (standard-diameter of bearing cup / diameter of seat where cup sits)

3L 262cid outdrives 1986-1993

If your curious on what kit to use

Spins nice and smoothly like it should

but equivalent otherwise)

MerCruiser 470 485 170hp 3.7L Heat Exchanger Cooling Hoses Set 32-77331 32-76326 Cooling System & Hoses 939 CUP dimension (standard-diameter ofItem Details Removed from a 1976 1978 MerCruiser 470 4cyl 170hp S N 4773394 (w 3" diameter heat exchanger) (MCM) MerCruiser made researching this section extremely confusing, so if something doesn't seem right here, please let me know.. Some of the hoses had the part numbers stamped on them and others I've had to deduce which part it likely is. Most of the parts here are for Serial numbers 4487701 & Up and generally these parts were used up until 1982