18-3217 - Basic water pump repair kit with impeller (no housings) fits all 4 and 6 cylinder models 650-1500 1963 to 1986

47-89984 - Sierra # 18-3017 Impeller for all 4 cylinder 650, 800 and 850 models. All 6 cylinder models with gearshift and Merc 800 direct reversing.

$ 23.95

47-89983 - Sierra # 18-3007 Impeller for 4 cylinder Mark 55,58 Merc 350,400,450 and 500 old #47-20268 (more)

$ 22.90

47-89980 - Impeller for some Mercury models 4hp 1 cylinder / 7.5hp / 9.8hp replaces Merc # 47-68988

$ 14.30

18-3517 - Water pump impeller kit with upper housing Replaces Merc # 46-60367A1,46-96148A5 fits all 4 and 6 cylinder models 650-1500 1963 to 1986

$ 54.95