Giant Industries' high-pressure water pumps are built from superior materials. Engineered in Germany and machined to exacting specifications, Giant pumps stand up to the harshest conditions and jobs. To top it off, the pump is extremely easy to maintain and repair, minimizing downtime in the field. All of the repair and upgrade kits are available here.
Giant Industries' high-pressure water pumps are built from superior materials. Engineered in Germany and machined to exacting specifications, Giant pumps stand up to the harshest conditions and jobs. To top it off, the pump is extremely easy to maintain and repair, minimizing downtime in the field. All of the repair and upgrade kits are available here.
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Giant Industries' high-pressure water pumps are built from superior materials. Engineered in Germany and machined to exacting specifications, Giant pumps stand up to the harshest conditions and jobs. To top it off, the pump is extremely easy to maintain and repair, minimizing downtime in the field. All of the repair and upgrade kits are available here.

GP7655 Giant Hyd Drive Pump Parts | 65 GPM @ 2000 PSI

$155.20

Giant Industries' high-pressure water pumps are built from superior materials. Engineered in Germany and machined to exacting specifications, Giant pumps stand up to the harshest conditions and jobs. To top it off, the pump is extremely easy to maintain and repair, minimizing downtime in the field. All of the repair and upgrade kits are available here.

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These Giant pump parts are for the GP7655 hydraulic drive model water pump. Some parts have longer lead times, if not in stock.

Need a manual?  Click here:  https://www.giantpumps.com/wp-content/uploads/2016/03/GP7645_GP7650_GP7655.pdf


OEM Line Item OEM Part #Description Price Quantity
0 GP7655ARGBHSGIANT WATER PUMP - 65@20 HYD DRIVE$15,403.00
- -____________GP7655 PUMP REPAIR PARTS___________$0.00
1 5769CRANKCASE, POWER END | (1 PER PUMP)$6,483.00
2 13000OIL FILLER PLUG ASSY - M64 x 2 | (1 PER PUMP)$781.99
8 7603OIL SIGHT GLASS ASSY | (1 PER PUMP)$25.31
9 1009DIPSTICK O'RING | (1 PER PUMP)$3.00
12 7109OIL DRAIN PLUG | (9 PER PUMP)$11.59
13 6272COPPER DRAIN PLUG SEAL | (9 PER PUMP)$5.57
14 5770BEARING COVER | (1 PER PUMP)$233.97
14A 12204BEARING COVER O'RING | (4 PER PUMP)$4.53
15 5771RADIAL CRANKSHAFT SEAL | (1 PER PUMP)$25.37
16 5772BEARING COVER PLATE O'RING | (2 PER PUMP)$10.52
17 5642HEX HEAD SCREW-CRANKSHAFT END | (4 PER PUMP)$4.50
18 5039SPRING LOCK WASHER | (4 PER PUMP)$3.54
20 5773TAPER ROLLER BEARING | (2 PER PUMP)$412.61
20A 5774SHIM, FITTING, 0.10 MM | (1-5 PER PUMP)$6.21
20B 4570SHIM, FITTING, 0.15 MM | (1-5 PER PUMP)$9.08
21 5645SHAFT GUARD HOLDER | (1 PER PUMP)$77.21
21A 5646SHAFT PROTECTOR GUARD | (1 PER PUMP)$8.43
22 4517CRANKSHAFT | (1 PER PUMP)$3,923.89
23 5776FITTING KEY | (1 PER PUMP)$4.19
24 5777CONNECTING ROD ASSEMBLY | (3 PER PUMP)$1,088.41
25 5778CROSSHEAD ASSEMBLY | (3 PER PUMP)$796.67
28 5779CROSSHEAD PIN | (3 PER PUMP)$234.18
29A 7408HEX NUT - BOTTOM PLATE | (1 PER PUMP)$3.00
29B 5383COOLING HOSE BRACKET | (2 PER PUMP)$14.91
29C 5662BOTTOM PLATE FIXING BRACKET | (1 PER PUMP)$29.80
29D 5381COOLING HOSE OUTER BRACKET | (1 PER PUMP)$57.92
30 7619UPPER PLEXI COVER PLATE | (1 PER PUMP)$97.35
30A 07225-0100PLEXI PLATE HEX SCREW | (9 PER PUMP)$5.00
30B 13136PLEXI COVER GROMMET | (4 PER PUMP)$4.62
30C 5053COVER FLAT DISC WASHER | (8 PER PUMP)$3.10
30D 13154LOWER STEEL COVER PLATE | (1 PER PUMP)$92.49
31 7623LIFT EYE BOLT | (1 PER PUMP)$42.97
32 7624RADIAL SHAFT SEAL | (3 PER PUMP)$38.73
33 7626RETAINER SEAL | (3 PER PUMP)$306.34
33A 7627RETAINER SEAL O'RING | (3 PER PUMP)$9.48
33B 7628RETAINER SEAL SNAP RING | (3 PER PUMP)$112.07
33C 7249SHIM SEAL FITTING DISC | (3 PER PUMP)$19.45
34 13137WATER PUMP OIL SLINGER | (3 PER PUMP)$13.39
36 7706PLUNGER ASSEMBLY | (3 PER PUMP)$1,460.03
36A 7667PLUNGER CONNECTION | (3 PER PUMP)$616.46
36B 7666PUMP PLUNGER | (3 PER PUMP)$571.03
46A 12055UPPER SUCTION VALVE O'RING | (3 PER PUMP)$3.00
36D 7665PUMP PLUNGER WASHER | (3 PER PUMP)$4.74
38 13155PUMP PLUNGER CASE SEAL | (3 PER PUMP)$1,245.63
38A 13156WATER PUMP CASE SEAL O'RING-FRONT | (3 PER PUMP)$3.93
38B 7721WATER PUMP CASE SEAL O'RING-REAR | (3 PER PUMP)$3.15
39 13157CYLINDER SLEEVE SEAL | (3 PER PUMP)$1,351.35
39A 7723WATER PUMP GROOVED RING | (3 PER PUMP)$75.29
40 7797WATER PUMP SUPPORT RING | (3 PER PUMP)$86.29
41 13158WATER PUMP SLEEVE O'RING | (3 PER PUMP)$6.00
42 7711WATER PUMP V-SLEEVE | (3 PER PUMP)$59.83
43 7712WATER PUMP PRESSURE RING | (3 PER PUMP)$114.66
49 13159VALVE CASING STUD BOLT | (8 PER PUMP)$68.66
49A 13160VALVE CASING HEX NUT | (8 PER PUMP)$21.11
50 7791VALVE CASING | (1 PER PUMP)$5,690.09
50A 13162CENTERING STUD | (2 PER PUMP)$7.27
51 5594INLET/SUCTION VALVE ASSEMBLY | (INCLUDES GIANT PARTS 51A-51F) (3 PER PUMP)$281.38
52 5600DISCHARGE VAVLE ASSEMBLY | (INCLUDES GIANT PARTS 52A-52F) (3 PER PUMP)$346.36
53 22610PUMP PLUG-1/4" X 3/4" DRY SEAL | (3 PER PUMP)$5.30
55 5647GIANT VALVE SPACER | (3 PER PUMP)$6.42
56A 7658UPPER VALVE O'RING | (3 PER PUMP)$2.59
56B 7635UPPER VALVE SUPPORT RING | (3 PER PUMP)$2.59
57 13173TENSION SPRING | (3 PER PUMP)$64.80
58 6682UPPER VALVE PLUG-M64 X 2 | (3 PER PUMP)$37.39
60 12251UPPER DISCHARGE PLUG - 1-1/4" NPT | (1 PER PUMP)$241.95
61 5170LOWER INLET PLUG - 2-1/2" NPT | (1 PER PUMP)$323.59
68 5782GEAR DRIVE - BOTTOM CASING | (1 PER PUMP)$1,511.55
69 5783GEAR DRIVE - TOP CASING | (1 PER PUMP)$1,346.47
70 5784GEAR CASE SEAL | (1 PER PUMP)$46.03
71 5785CENTERING RING | (1 PER PUMP)$315.37
7... 5786GEARBOX GEAR SET - 2.4 | (1 PER PUMP)$4,110.08
74 5787SELF ALIGNING ROLLER BEARING | (1 PER PUMP)$587.94
75 5788ROLLER BEARING | (1 PER PUMP)$276.29
76 7117FITTING DISC - 0.1 MM | (1-5 PER PUMP)$3.84
77 5789RADIAL SHAFT RING | (1 PER PUMP)$135.24
78 5665CYLINDER CASE PIN | (6 PER PUMP)$5.00
80 5790GEAR RING SPACER #1 | (1 PER PUMP)$164.73
81 5791GEAR RING SPACER #2 | (1 PER PUMP)$207.72
82 5802GEAR DRIVE FIXING PLATE | (1 PER PUMP)$54.03
83 13358HEXAGON GEAR SCREW | (1 PER PUMP)$4.43
84 5792SOCKET HEAD SCREW - GEAR INNER | (7 PER PUMP)$4.50
85 5702SOCKET HEAD SCREW - GEAR OUTER | (8 PER PUMP)$8.77
86 7159PUMP SPRING WASHER | (8 PER PUMP)$4.74
87 5793SOCKET HEAD SCREW - GEAR OUTER #2 | (5 PER PUMP)$9.18
88 5655SOCKET HEAD SCREW - GEAR OUTER #3 | (1 PER PUMP)$5.00
89 5794HOLLOW OUTER GEAR FLANGE | (1 PER PUMP)$5.25
89A 5795CENTERING OUTER RING | (1 PER PUMP)$170.01
90 04157-180OIL COOLER ASSEMBLY (ALL K1-K20 PARTS INCLUDED)| (1 PER PUMP)$2,521.10
NA 7662HOLLOW OUTER GEAR FLANGE | (1 PER PUMP)$294.48
- -____________GP7655 PUMP REPAIR KITS___________$0.00
NA 9220KIT, PACKING, PLUNGER, GP7655GBHS | (1 PER PUMP)$669.88
NA 9659KIT, VALVE, SUCTION INLET, GP7645-7655 | (3 PER PUMP)$336.37
NA 9660KIT, VALVE, LG. DISCHARGE, GP7645-7655 | (3 PER PUMP)$374.04
NA 9661KIT, VALVE, SMALL DISCHARGE, GP7645-7655 | (3 PER PUMP)$194.91
NA 9221KIT, SEAL, OIL, GP7654-7655 | (1 PER PUMP)$155.20