Alpha 1 & Gen. 2 Outdrive Parts *Drawings *Videos
Mercruiser Alpha 1 water pump base o ring *2.188" I.D.
GLM Marine aftermarket O ring
OEM number : 25-90011 GLM Marine part number : 81390 5 O-rings included in set 2.188
I.D. (inner diameter) Also included in the complete water pump kit
Mercruiser exploded view drawingsSearch by part number or description here
81390 Mercury o ring
Customers who bought P/N 81390 also purchased:
P/N 87511 GLM Marine gasket and seal kit. Replaces Mercury 26-816575A3. $45.15
12043 Impeller kit OEM 47-43026K06
P/N 12043 Water pump impeller kit for Mercruiser 1991 and up models. Impeller $31.15Includes coupling assembly P/N 12824 #816597A1(1991 and up) S/N OD469859
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