Sierra Marine Parts Catalog: Mercruiser
--CONTAINS --
Part #
Desc.
O.E. #
Qty.
Water Tube
23-29804
1
Impeller
47-89984
1
Housing
46-96148A1
1
Water Pump Base to Gear Housing Gasket
27-42631-1
1
Grommet
26-38970
1
Gear Housing Drain Screw Gasket
26-20260, 12-19183
2
Water Pump Base to Gear Housing Gasket
27-85610-1
1
Lower Water Pump to Wear Plate Gasket
27-85608-1
1
Upper Water Pump to Wear Plate Gasket
27-85609-1
1
Seal Ring
26-45577
1
Plate
32435
1
O-Ring
25-30613
1
O-Ring
25-33145
1
O-Ring
25-30224
1
WATER PUMP KIT
O-Ring
25-90011
1
Without Base
Water Pump Gasket
27-32438
1
18-7196
O-Ring
25-38099
1
Replaces: 46-96148A5,46-60367A1, 46-96148A8
O-Ring
35-30271
1
--CONTAINS --
Part #
Desc.
O.E. #
Qty.
Water Tube
23-29804
1
Impeller
47-89984
1
Housing
46-96148A1
1
Water Pump Base
46-44292A3
1
Water Pump Base to Gear Housing Gasket
27-42631-1
1
Grommet
26-38970
1
Gear Housing Drain Screw Gasket
12-19183
2
Water Pump Base to Gear Housing Gasket
27-85610-1
1
Lower Water Pump to Wear Plate Gasket
27-85608-1
1
Upper Water Pump to Wear Plate Gasket
27-85609-1
1
Seal Ring
26-45577
1
Plate
32435
1
O-Ring
25-30613
1
O-Ring
25-33145
1
O-Ring
25-30224
1
O-Ring
25-90011
1
WATER PUMP KIT
Water Pump Gasket
27-32438
1
For: MR/Alpha I Units
18-7196
O-Ring
25-38099
1
S/N 6854393-OD469858
O-Ring
35-30271
1
--CONTAINS --
Part #
Desc.
O.E. #
Qty.
Water Tube
23-29804
1
Impeller
47-89984
1
Housing
46-96148A1
1
Water Pump Base
46-48748A1
1
Water Pump Base to Gear Housing Gasket
27-42631-1
1
Grommet
26-38970
1
Gear Housing Drain Screw Gasket
12-19183
2
Water Pump Base to Gear Housing Gasket
27-85610-1
1
Lower Water Pump to Wear Plate Gasket
27-85608-1
1
Upper Water Pump to Wear Plate Gasket
27-85609-1
1
Seal Ring
26-45577
1
Plate
32435
1
O-Ring
25-30613
1
O-Ring
25-33145
1
O-Ring
25-30224
1
O-Ring
25-90011
1
WATER PUMP KIT
Water Pump Gasket
27-32438
1
For: #1 Units with flush
18-7196
O-Ring
25-38099
1
S/N 2495186-2763441
O-Ring
35-30271
1
--CONTAINS --
Part #
Desc.
O.E. #
Qty.
Water Tube
23-29804
1
Impeller
47-89984
1
Housing
46-96148A1
1
Water Pump Base to Gear Housing Gasket
27-42631-1
1
Water Pump Base
46-57234A1
1
Grommet
26-38970
1
Gear Housing Drain Screw Gasket
12-19183
2
Water Pump Base to Gear Housing Gasket
27-85610-1
1
Lower Water Pump to Wear Plate Gasket
27-85608-1
1
Upper Water Pump to Wear Plate Gasket
27-85609-1
1
Seal Ring
26-45577
1
Plate
32435
1
O-Ring
25-30613
1
O-Ring
25-33145
1
O-Ring
25-30224
1
O-Ring
25-90011
1
Water Pump Gasket
27-32438
1
WATER PUMP KIT
18-7196
O-Ring
25-38099
1
For: #1/R Units without flush
O-Ring
35-30271
1
S/N 2763442-6854392
Water Pump Gasket
27-46231-1
1
COMPLETE WATER PUMP KIT, IMPELLER REPAIR KIT, IMPELLER APPLICATION
Serial
Upper
Water
Impeller Repair
Upper Pump
Complete Water
Number
Pump Kit
Pump Base
Kit
Impeller
Model
Housing
Pump Kit
#1 Units with plastic flush screw in gear housing
2495186 - 2763441
#1 Units w/o flush screw in gear housing
2763442 - 6854392
18-3317 ➀
18-3417 ➀
MR/ALPHA I
6854393 - 0D594568
ALPHA I - Generation II & Vazer
0D494569 & ABOVE
--
--
BRAVO/Inboards w/ Plastic pump body
3040411 & ABOVE
--
--
--
BRAVO/Inboards w/ Brass pump body
0M100001 & ABOVE
--
--
--
--
631
Models which have been retro-fitted with an Alpha style lower unit (no pre-load pin in top of driveshaft) must use Alpha style parts (18-3320 and 18-3420)
➀