Mercruiser Alpha 1 water pump base o ring *2.188 I.D.

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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 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

21950 Bellows 30-803097T1

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