Alpha One & 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 kitMercruiser exploded view drawings
81390 Mercury o ring
P/N 81390 Alpha 1 O-Ring (5 units) $9.95
Customers who bought P/N 81390 also purchased:
87510 Mercruiser seals gasket kit 26-33144A2
P/N 87510 seal kit for Mercruiser lower units 1970 - 1990 models.Replaces Mercury 26-33144A2. $44.99
P/N 21950 For 1970 - 1990 Mercruiser models with serial numbers 3469428-0D46985. $145.95
Gen 2 26-816575A3
P/N 87511 GLM Marine gasket and seal kit. Replaces Mercury 26-816575A3. $41.99
12043 Impeller kit OEM 47-43026K06
P/N 12043 Water pump impeller kit for Mercruiser 1991 and up models. Impeller $44.99(1991 and up) S/N OD469859 and up
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