Alpha 1 & Gen. 2 Outdrive Parts *Drawings *Videos
Mercruiser Alpha One Water Pump Key
Impeller Key / Lower Unit Water Pump Assembly
GLM P/N 11070 key replaces Mercury OEM 28-56654Compatible with all models up to 1990 (does not work
with Alpha Generation 2, 1991 and up)Included in water pump impeller kits
Exploded view Mercruiser drawingsSearch by part number or description here
P/N 11070 Water pump impeller keys (1 unit)OEM 28-56654 $4.09
P/N 12120 Complete Mercruiser lower unit stern drive water pump rebuild kit. Works with 1983 - 1990 models, serial numbers 6854393-OD469858. Includes key. $35.15
P/N 12110 Water pump impeller kit, for pre-alpha lower units 1970 - 1982, serial numbers 2763442-6854392. Includes key. $40.15
P/N 87510 Lower unit seal kit, works with 1970 - 1990 models. Replaces OEM 26-33144A2. $35.15
P/N 39622 Stern drive bell housing gasket kit. Make sure to use a gasket sealing compound (available below).
Replaces OEM 27-94996A2. $6.15
P/N 508235 Small gasket sealant 4 ounce. $19.15
P/N 317201 Large gasket sealant (includes brush inside lid) 16 ounce. $24.15
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