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Sierra Marine Parts Catalog: Mercruiser

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GENERATION II WATER PUMP ASSEMBLY
Sequence
Description
Part #
O.E. #
Qty.
1
Face Plate
18-3122
817276
1
2
Housing Assembly
N.S.S.
817275A1
1
3
Gasket, Base
18-2564
27-43033-1
1
4
Gasket, Housing
18-2566
27-817277
1
5
Seal, Face
18-2599
26-816575A2
1
6
Screw, Housing
N/A
10-816928
4
7
Impeller
18-3056
47-43026-2
1
8
Coupling Assembly
18-3151
47-43026T11
1
9
O-Ring
18-7420
25-21836
2
10
Sleeve
18-3222
23-816583
1
MR ALPHA WATER PUMP ASSEMBLY
Sequence
Description
Part #
O.E. #
Qty.
1
Guide Sleeve
18-3109
23-29804
1
2
Seal, Sleeve Guide
18-3110
26-38970
1
3
Ring, Upper
18-7158
25-30613
1
4
Ring, Dust
18-7426
25-30271
1
5
Nut, Housing
N/A
11-13436
1
6
Washer, Housing
18-4270
12-36001
3
7
Screw, Housing
N/A
10-96411
1
8
Housing, Water Pump
18-3116
46-96148A1
1
9
Cup, Impeller
18-3114
48752T
1
10
Impeller
18-3017
48752
1
11
Gasket, Impeller
18-2915
47-89984
1
12
Plate, Impeller
18-3117
27-85609-1
1
13
Gasket, Stainless Steel Plate
18-2914
27-85608-1
1
14
Water Pump Base Assembly
18-3420
46-44292A3
1
15
Oil Seal, Water Pump Base
18-2013
26-16977
1
16
Gasket, Water Pump Base
18-2919
27-42631-1
1
17
Oil Seal, Water Pump Base
18-2014
26-89238
1
18
O-Ring, Water Pump Base
18-7176
25-90011
1
19
Pin, Alignment
N/A
17-42836
1
20
Nut, Housing
N/A
11-13438
1
21
Washer, Housing
18-4275
12-29245
2
22
Key, Impeller
N/A
28-56654
1
632