7.4L Bravo (Gen 4) GM 454 V-8 1988-1991 - Serial 0B771113 Thru 0D603117 - Sea Water Pump

Section Drawing: (Hover or click to view larger)

Special Note: 620-4109 and (2) 540-222151 Replaces Entire Assembly, minus belt & brace.
Ref. OEM Part # Hardin # Mallory # GLM # Other # Description Num Req. Superceded From Special Notes
1 46-807151A12 620-4110, (2) 540-222151   700-12093   PUMP ASSEMBLY, Sea Water - Complete 1 46-72774A50  
2 46-72774A40
 

BODY ASSEMBLY, Sea Water - Complete  1  
3 87631A4
 

COVER, WATER PUMP  1 87631A1
4 10-99347
 

SCREW, (.312-18 x 3.75)  3  
4 10-73275
 

SCREW, (.312-18 x 2.88), WATER PUMP  2  
5 12-20084
 

WASHER, (.328 x .562 x .062), COVER SCREW  5  
6 27-8052151
 

GASKET, COVER TO OUTER WEAR PLATE  1 27-94915
7 94916
 

WEAR PLATE, OUTER  1  
8 27-94914

700-32730
GASKET, BODY TO WEAR PLATE  2  
9 19-59504
 

PLUG, IMPELLER  1  
10 47-59362T1 625-4011 676-9-45375 700-89740
IMPELLER  1 47-59362
11 8M0032837
 

KEY, IMPELLER DRIVE  1 28-56662
12 94576
 

WEAR PLATE, INNER  1  
13 25-94288
 

QUAD RING, PUMP HOUSING  1  
14 46-94913A2
 

HOUSING ASSEMBLY, Water Pump  1  
15 26-90562
676-9-76107 700-85080
SEAL, (1.254 x .312), WATER PUMP SHAFT  2  
16 30-72961
 

BEARING, Ball, WATER PUMP SHAFT  2  
17 59501A1
 

SHAFT, WATER PUMP  1  
18 53-23720
 

RING, Retaining, BALL BEARING RETAINING  1  
19 26-72785
 

SEAL, WATER PUMP SHAFT  1  
20 47530 421-205M
 

HUB, WATER PUMP PULLEY  1  
21 52822T 625-4024
 

PULLEY, WATER PUMP (CAST) 1  
22 10-47277
 

SCREW, (.312-24 x .750), PULLEY 4  
23 13-39107
  700-21496
LOCKWASHER, (.312-24), PULLEY SCREW 4  
24 22-328022
 

PLUG, Pipe (.125-27) (FOR WATER PUMP BODY) 1 22-32802
25 57-13457Q
 

BELT, WATER PUMP (30") 1 57-13457T
26 15295T
 

BRACKET, WATER PUMP (STAMPED) 1  
27 10-47461
 

SCREW, (.437-14 x 1.00), WATER PUMP BRACKET 1  
28 10-17965
 

SCREW, (.437-14 x .70), WATER PUMP BRACKET 1  
29 13-32993
 

LOCKWASHER, (.437), BRACKET SCREW 1  
30 12-27025
 

WASHER, BRACKET SCREW 1  
32 13-39107
  700-21496
LOCKWASHER, (.312-24) 3  
33 11-21908
 

NUT, (.312-18) Cad Plated 3  
34 15751T
 

BRACE, WATER PUMP 1  
35 10-47461
 

SCREW, (.437-14 x 1.00), BRACE TO ENGINE 1  
36 13-32993
 

LOCKWASHER, (.437), BRACE SCREW 1  
37 12-74758
 

WASHER, BRACE SCREW 1 12-30315
38 10-35786
 

SCREW, (.375-24 x 1.00), WATER PUMP BRACE 1  
39 13-35048
 

LOCKWASHER, (.375), BRACE SCREW 1  
40 11-46335
 

NUT, (.375-24), BRACE SCREW 1