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3G-7664 CARTRIDGE GP-VANE PUMP S/N NEL1-UP 144-L/MIN (38-US GPM) PART OF 9J-5075 PUMP GP-VANE 621G WHEEL TRACTOR


HYDRAULIC SYSTEM
PUMP GP
COOLER GP
CYLINDER GP
DRIVE GP
FILTER GP
HYDRAULIC GP
FILTER GP
LINES GP-HYDRAULIC

WHEEL TRACTOR 621G WHEEL TRACTOR NEL
 621G Wheel Tractor (US Military) NEL00001-UP (MACHINE) POWERED BY C15 Engine SEBP6365 621G NEL   (2013)

HYDRAULIC SYSTEM

PUMP GP
CARTRIDGE GP-VANE PUMP
3G-7656 CARTRIDGE GP-VANE PUMP
CARTRIDGE GP-VANE PUMP
3G-7664 CARTRIDGE GP-VANE PUMP
203-2236 PUMP & MTG GP-CUSHION-HITCH
PUMP GP-PISTON
202-1335 PUMP GP-PISTON
PUMP GP-VANE
8D-6905 PUMP GP-VANE
PUMP GP-VANE
9J-5075 PUMP GP-VANE
ROTATING GP-PUMP
189-4710 ROTATING GP-PUMP
VALVE GP-PUMP CONTROL
193-3182 VALVE GP-PUMP CONTROL
VALVE GP-PUMP CONTROL
421-1062 VALVE GP-PUMP CONTROL
 

#SEBP63650280
 

3G-7664: CARTRIDGE GP-VANE PUMP

3G-7664 CARTRIDGE GP-VANE PUMP
S/N NEL1-UP
144-L/MIN (38-US GPM)
PART OF 9J-5075 PUMP GP-VANE
i00158188 SEBP6365
3G7664 CARTRIDGE GP-VANE PUMP Parts scheme
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Parts for your 621G WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 061-9457 [1] SEAL-O-RING  
2. 8C-3079 C [4] SEAL-O-RING  
3. 5D-5958 [1] SEAL-O-RING  
4. 3G-1820 [1] RING-SEAL  
5. 9T-5087 C [1] RING  
6. 3G-1264 C [4] RETAINER-SEAL  
7. 9T-5042 C [2] DOWEL  
8. 9T-5049 C [1] PLATE-INLET  
9. 9T-5057 C [1] KIT-VANE  
10. 9T-5092 C [1] PLATE-OUTLET  
11. 9T-5100 C [2] PLATE-FLEX  
12. 9T-5107 C [1] ROTOR  
13. 9T-5112 C [2] BOLT (1/4-28X2.87-IN)  
14. 9T-5077 C [1] RING  
  C   CHANGE FROM PREVIOUS TYPE
 

#SEBP63650281
 

225-4251: COOLER GP-HYDRAULIC OIL

225-4251 COOLER GP-HYDRAULIC OIL
S/N NEL1-UP
PART OF 225-4240 COOLING AR
i02194249 SEBP6365
2254251 COOLER GP-HYDRAULIC OIL Parts scheme
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Parts for your 621G WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 9V-3419 [2] ANGLE  
2. 237-5867 [2] BRACKET AS  
3. 239-8530 [1] CORE AS-OIL COOLER  
4. 245-0833 [2] TUBE AS  
5. 119-6220 [2] ELBOW  
6. 2M-9780 [2] SEAL-O-RING  
7. 4S-1962 [2] CLIP (LOOP)  
8. 5K-9090 [2] SEAL-O-RING  
9. 7X-7729 [12] WASHER (11X25X3-MM THK)  
10. 8T-4133 M [2] NUT (M10X1.5-THD)  
11. 8T-4136 M [10] BOLT (M10X1.5X25-MM)  
  M   METRIC PART
 

#SEBP63650282
 

108-3592: CYLINDER GP-LOAD

108-3592 CYLINDER GP-LOAD
S/N NEL1-UP
139.8-MM (5.5-IN) BORE X 251.5-MM (9.9-IN) STROKE
PART OF 346-7718 HYDRAULIC AR
i03875711 SEBP6365
1083592 CYLINDER GP-LOAD Parts scheme
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Parts for your 621G WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 7J-2672 [1] PISTON  
2. 8J-9447 [1] CYLINDER AS  
2A. 8J-0201 [1] BUSHING  
3. 8J-9451 [1] ROD AS  
3A. 8J-0201 [1] BUSHING  
4. 9T-3957 [1] HEAD  
5. 289-2937 CJ [1] SEAL AS-BUFFER  
6. 391-0229 CJ [1] SEAL-U-CUP  
7. 1A-8063 [4] BOLT (3/4-10X2.5-IN)  
8. 225-3281 J [1] SEAL-WIPER  
9. 316-2516 J [1] SEAL-O-RING  
10. 2J-0564 [1] LOCKNUT (2-12-THD)  
11. 2K-2961 J [1] RING-BACKUP  
12. 3K-0360 [1] SEAL-O-RING  
13. 4J-4606 J [1] RING-WEAR  
14. 495-8215 J [1] SEAL AS  
15. 5P-8248 [4] WASHER-HARD (20X36.5X3.5-MM THK)  
16. 8T-5668 J [1] RING-WEAR  
17. 9S-4185 [1] PLUG (3/4-16-THD)  
   
    AVAILABLE REPAIR KIT(S):
  473-3046 J [1] KIT-HYD CYLINDER SEAL  
  C   CHANGE FROM PREVIOUS TYPE
  J   KIT MARKED J SERVICES PART(S) MARKED J
  R   REMANUFACTURED PART MAY BE AVAILABLE
 

#SEBP63650283
 

6I-3638: DRIVE GP-PUMP

6I-3638 DRIVE GP-PUMP
S/N TXG1-UP
SAE 2
PART OF 364-6377 ENGINE AR-COMPLETE
i00397491 SEBP6365
6I3638 DRIVE GP-PUMP Parts scheme
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Parts for your 621G WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 0S-1590 [3] BOLT (3/8-16X2-IN)  
2. 8T-9527 [1] SEAL-O-RING  
3. 133-9907 YC [1] ADAPTER GP-PUMP DRIVE  
4. 5M-2894 [4] WASHER-HARD (10.2X18.5X2.5-MM THK)  
5. 9S-8752 [1] NUT-FULL (3/8-16-THD)  
  C   CHANGE FROM PREVIOUS TYPE
  Y   SEPARATE ILLUSTRATION
 

#SEBP63650284
 

178-0561: FILTER GP-OIL

178-0561 FILTER GP-OIL
S/N NEL1-UP
ULTRA HIGH EFFICIENCY
PART OF 227-8276 LINES GP-PUMP
i01410172 SEBP6365
1780561 FILTER GP-OIL Parts scheme
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Parts for your 621G WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 2M-9780 [1] SEAL-O-RING  
2. 373-9231 [1] RING  
3. 126-1814 [1] FILTER-OIL (ULTRA HIGH EFFICIENCY)  
4. 133-5342 Y [1] INDICATOR GP-OIL FILTER CHANGE (HYDRAULIC)  
5. 9S-8006 [1] PLUG (7/8-14-THD)  
  Y   SEPARATE ILLUSTRATION
 

#SEBP63650285
 

9T-4915: FILTER GP-OIL

9T-4915 FILTER GP-OIL
S/N NEL1-UP
EXTERNAL
PART OF 245-3778 TANK GP-HYDRAULIC
i00158139 SEBP6365
9T4915 FILTER GP-OIL Parts scheme
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Parts for your 621G WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 9J-9316 [1] ROD  
2. 3G-7232 Y [1] BYPASS GP-FILTER (HYDRAULIC OIL)  
3. 9S-8010 [1] PLUG  
4. 2S-4078 [1] SEAL-O-RING  
5. 5P-8247 [4] WASHER-HARD (17X32X3.5-MM THK)  
6. 1A-1135 [4] BOLT (5/8-11X2-IN)  
7. 5P-3092 [1] SEAL-O-RING  
8. 3G-8151 [1] HOUSING AS  
9. 9J-4066 [1] SCREEN AS  
10. 1R-0732 [2] FILTER ELEMENT AS-OIL (STANDARD EFFICIENCY)  
    -OR-
  4T-3133 A [2] FILTER ELEMENT-OIL (FIRE RESISTANT FLUID)(HYDRAULIC OIL)  
  A   NOT PART OF THIS GROUP
  Y   SEPARATE ILLUSTRATION
 

#SEBP63650286
 

346-7718: HYDRAULIC AR

346-7718 HYDRAULIC AR
S/N NEL1-UP
PART OF 397-6207 COMMON AR
i04181916 SEBP6365
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Parts for your 621G WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  Y [1] ACCUMULATOR GP-HYDRAULIC (EUROPEAN MARKET, NACD)  
  172-0928 Y [1] CONTROL GP-DIFFERENTIAL LOCK (CHASSIS)  
  227-8277 Y [1] CONTROL GP-SERVICE BRAKE  
  108-3592 Y [1] CYLINDER GP-LOAD (CUSHION-HITCH)  
  9T-6685 Y [1] CYLINDER GP-SERVO STEERING  
  5T-5312 Y [1] LINES GP-CENTRAL LUBRICATION  
  261-4475 Y [1] LINES GP-CUSHION-HITCH (WITH ACCUMULATOR)  
  391-0070 Y [1] LINES GP-HEATER & AIR COND  
  227-8275 Y [1] LINES GP-HYDRAULIC  
  344-4045 Y [1] LINES GP-HYDRAULIC (CUSHION-HITCH)  
  236-0799 Y [1] LINES GP-POWER TRAIN OIL  
  227-8276 Y [1] LINES GP-PUMP (HYDRAULIC TANK)  
  203-2236 Y [1] PUMP & MTG GP-CUSHION-HITCH  
  8D-6050 Y [1] PUMP & MTG GP-SCAVENGE (FLYWHEEL HOUSING)  
  8D-6905 Y [1] PUMP GP-VANE (HYDRAULIC, STEERING)  
  244-8853 Y [1] TANK & MTG GP-HYDRAULIC  
  237-7610 Y [1] TANK GP-AIR  
  Y   SEPARATE ILLUSTRATION
 

#SEBP63650287
 

133-5342: INDICATOR GP-OIL FILTER CHANGE

133-5342 INDICATOR GP-OIL FILTER CHANGE
S/N NEL1-UP
DIFFERENTIAL
PART OF 178-0561 FILTER GP-OIL
i01298342 SEBP6365
1335342 INDICATOR GP-OIL FILTER CHANGE Parts scheme
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Parts for your 621G WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 168-9239 [2] SCREW  
2. 150-4651 [2] SEAL-O-RING  
 

#SEBP63650288
 

261-4475: LINES GP-CUSHION-HITCH

261-4475 LINES GP-CUSHION-HITCH -WITH ACCUMULATOR
S/N NEL1-UP
PART OF 346-7718 HYDRAULIC AR
i02817650 SEBP6365
2614475 LINES GP-CUSHION-HITCH Parts scheme 2614475 LINES GP-CUSHION-HITCH Parts scheme
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Parts for your 621G WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 2T-2378 I [1] HOSE AS  
2. 5T-9996 CI [1] HOSE AS  
3. 6G-5003 [1] BLOCK-PIVOT  
4. 6V-0852 [1] CAP-DUST  
5. 7I-5228 I [1] HOSE AS  
6. 8J-0661 [1] PLATE  
7. 8J-1081 [1] SPRING-LEAF  
8. 8W-0068 I [1] HOSE AS  
9. 8X-9881 [1] PLATE  
10. 8X-9882 [1] PLATE  
11. 164-5567 [1] COUPLER AS-QUICK DISCONNECT (MALE)  
  3J-1907 [1] SEAL-O-RING  
  6V-3965 [1] FITTING (QUICK DISCONNECT)  
12. 164-5586 [1] TEE AS  
  7X-0871 [1] TEE  
  6V-8398 [1] SEAL-O-RING  
13. 165-4931 [1] ELBOW AS  
  6V-8077 [1] ELBOW  
  3J-1907 [1] SEAL-O-RING  
14. 216-8309 [1] CONNECTOR AS  
  169-9763 [1] CONNECTOR  
  3J-1907 [1] SEAL-O-RING  
  6V-8397 [1] SEAL-O-RING  
15. 261-4474 Y [1] VALVE & MTG GP-HYDRAULIC (CUSHION-HITCH)  
16. 276-3469 [1] PLATE  
17. 307-6142 C [1] TUBE AS  
18. 309-5066 C [1] TUBE AS  
19. 124-0174 [1] CLIP (LOOP)  
20. 148-8311 [1] ADAPTER AS  
  8T-1715 [1] ADAPTER  
  3K-0360 [1] SEAL-O-RING  
21. 148-8318 [1] CONNECTOR AS  
  6V-8634 [1] CONNECTOR  
  3K-0360 [1] SEAL-O-RING  
  6V-8397 [1] SEAL-O-RING  
22. 148-8372 [1] ELBOW AS  
  6V-8721 [1] ELBOW  
  2M-9780 [1] SEAL-O-RING  
  6V-8398 [1] SEAL-O-RING  
23. 148-8378 [1] ELBOW AS  
  6V-8724 [1] ELBOW  
  3J-1907 [1] SEAL-O-RING  
  6V-8397 [1] SEAL-O-RING  
24. 148-8380 [1] ELBOW AS  
  6V-8988 [1] ELBOW  
  6V-8398 [2] SEAL-O-RING  
25. 164-9869 C [1] CONNECTOR AS  
  3J-1907 [1] SEAL-O-RING  
  6V-8397 [1] SEAL-O-RING  
  9X-2297 [1] CONNECTOR  
26. 1P-3703 [1] SEAL-RECTANGULAR  
27. 1P-4577 [2] FLANGE-HALF  
28. 1S-1015 [2] CLIP (LOOP)  
29. 3B-4617 [2] PIN-COTTER  
30. 3D-2824 [1] SEAL-O-RING  
31. 4H-9369 [1] PIN  
32. 4J-0520 [3] SEAL-O-RING  
33. 4J-0522 [1] SEAL-O-RING  
34. 4K-1540 [1] PIN-CLEVIS  
35. 4L-6454 [2] BOLT (3/8-16X1-IN)  
36. 4L-6459 [4] BOLT (3/8-16X2.5-IN)  
37. 4L-9337 [2] BOLT (3/8-16X1.5-IN)  
38. 5K-1094 [1] LOCKWASHER  
39. 5M-3062 [1] BOLT (3/8-16X0.75-IN)  
40. 5P-1075 [3] WASHER-HARD (10.2X22.5X3-MM THK)  
41. 5P-2228 [2] BOLT (1/2-13X1-IN)  
42. 5P-7464 [1] CLIP (SLOT)  
43. 5P-7465 [1] CLIP (TAB)  
44. 5S-7382 [2] BOLT (3/8-16X1.375-IN)  
45. 5T-2653 [1] TUBE AS  
46. 6V-7359 [1] GROMMET (25-MM ID, 37-MM OD)  
47. 6V-8188 [2] NUT (1/2-13-THD)  
48. 6V-8801 [4] NUT (3/8-16-THD)  
49. 6V-9169 [1] NUT (13/16-16-THD)  
50. 6V-9746 [3] SEAL-O-RING  
51. 7S-3912 [1] CLIP (TAB)  
52. 7S-3913 [1] CLIP (SLOT)  
53. 7X-0772 [2] WASHER-HARD (10.2X25.5X2.5-MM THK)  
54. 8C-8400 [1] ELBOW  
55. 8J-7225 [1] PLATE  
56. 8T-2501 [2] BOLT (3/8-16X2-IN)  
57. 8T-4223 [6] WASHER-HARD (13.5X25.5X3-MM THK)  
58. 8T-4896 [14] WASHER-HARD (10.2X18.5X2.5-MM THK)  
59. 8T-8917 [2] BOLT (1/2-13X1.25-IN)  
60. 8T-9377 [2] BOLT (3/8-16X2.25-IN)  
61. 8W-0070 I [1] HOSE AS  
62. 8W-0223 [1] BRACKET  
63. 9B-7237 [2] BOLT (3/8-16X1.25-IN)  
  C   CHANGE FROM PREVIOUS TYPE
  I   REFER TO HYDRAULIC INFORMATION SYSTEM
  Y   SEPARATE ILLUSTRATION
 

#SEBP63650289
 

227-8275: LINES GP-HYDRAULIC

227-8275 LINES GP-HYDRAULIC
S/N NEL1-UP
PART OF 346-7718 HYDRAULIC AR
i01949844 SEBP6365
2278275 LINES GP-HYDRAULIC Parts scheme
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Parts for your 621G WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 318-2538 I [1] HOSE AS  
2. 3G-4005 [1] LINK  
3. 6V-0852 [1] CAP-DUST  
4. 8W-8580 [1] FLANGE  
5. 120-5274 [1] BLOCK  
6. 164-5567 [1] COUPLER AS-QUICK DISCONNECT (MALE)  
  6V-3965 [1] FITTING (QUICK DISCONNECT)  
  3J-1907 [1] SEAL-O-RING  
7. 164-8908 [1] CONNECTOR AS  
  8T-0077 [1] CONNECTOR  
  3K-0360 [1] SEAL-O-RING  
  6V-8398 [1] SEAL-O-RING  
8. 172-5226 I [1] HOSE AS  
9. 184-9845 [1] SCREEN AS-FILTER (HYDRAULIC LINES)  
  6V-8625 [1] ELBOW  
  6V-8398 [1] SEAL-O-RING  
  3K-0360 [1] SEAL-O-RING  
10. 203-3079 I [1] HOSE AS  
11. 203-3080 I [1] HOSE AS  
12. 244-1647 [1] BLOCK-GAUGE  
13. 148-8335 [1] CONNECTOR AS  
  6V-8635 [1] CONNECTOR  
  5K-9090 [1] SEAL-O-RING  
  7M-8485 [1] SEAL-O-RING  
14. 148-8365 [1] ELBOW AS  
  8T-6876 [1] ELBOW  
  3J-1907 [1] SEAL-O-RING  
  6V-8398 [1] SEAL-O-RING  
15. 148-8415 [1] REDUCER AS  
  6V-8936 [1] REDUCER  
  6V-8397 [1] SEAL-O-RING  
16. 148-8428 [1] TEE AS  
  6V-8782 [1] TEE  
  3K-0360 [1] SEAL-O-RING  
  6V-8398 [2] SEAL-O-RING  
17. 153-6241 [2] ELBOW AS  
    (EACH INCLUDES)
  8C-8989 [1] ELBOW  
  6V-8398 [1] SEAL-O-RING  
18. 1P-4576 [2] FLANGE-HALF  
19. 1S-0994 [1] CLIP (LOOP)  
20. 1T-0765 [2] BOLT (3/8-16X1-IN)  
21. 2H-4145 [1] SEAL-O-RING  
23. 4J-0520 [1] SEAL-O-RING  
24. 4J-5267 [2] SEAL-O-RING  
25. 4L-6454 [2] BOLT (3/8-16X1-IN)  
26. 5M-3062 [1] BOLT (3/8-16X0.75-IN)  
27. 5P-1075 [3] WASHER-HARD (10.2X22.5X3-MM THK)  
28. 5P-7464 [1] CLIP (SLOT)  
29. 5P-7465 [1] CLIP (TAB)  
30. 5S-7382 [4] BOLT (3/8-16X1.375-IN)  
31. 6V-1249 [1] GROMMET (22-MM ID)  
33. 6V-8801 [2] NUT (3/8-16-THD)  
34. 8C-3206 [2] FLANGE-HALF  
35. 8C-6362 [4] BOLT (5/8-11X2.75-IN)  
36. 8F-6974 [4] BOLT (3/8-16X2.5-IN)(3/8-16X2.5-IN)  
37. 8T-4122 [4] WASHER-HARD (17X32X3.5-MM THK)  
38. 8T-4896 [13] WASHER-HARD (10.2X18.5X2.5-MM THK)  
39. 9L-1775 [1] BRACKET  
40. 9B-7237 [1] BOLT (3/8-16X1.25-IN)  
  I   REFER TO HYDRAULIC INFORMATION SYSTEM
 

Information:

Caterpillar Parts SIS Catalog 621G :

CARTRIDGE GP-VANE PUMP
3G-7656 CARTRIDGE GP-VANE PUMP
BYPASS GP-FILTER
3G-7232 BYPASS GP-FILTER
ACCUMULATOR GP-HYDRAULIC
376-3897 ACCUMULATOR GP-HYDRAULIC
ACCUMULATOR GP-HYDRAULIC
376-3894 ACCUMULATOR GP-HYDRAULIC
354-4883 ACCUMULATOR GP-HYDRAULIC
VALVE GP-STEERING
6E-4069 VALVE GP-STEERING
VALVE GP-RELIEF
4T-5538 VALVE GP-RELIEF
VALVE GP-RELIEF
142-8538 VALVE GP-RELIEF
COOLER GP-HYDRAULIC OIL
225-4251 COOLER GP-HYDRAULIC OIL
CYLINDER GP-LOAD
108-3592 CYLINDER GP-LOAD
DRIVE GP-PUMP
6I-3638 DRIVE GP-PUMP
FILTER GP-OIL
178-0561 FILTER GP-OIL
FILTER GP-OIL
9T-4915 FILTER GP-OIL
346-7718 HYDRAULIC AR
INDICATOR GP-OIL FILTER CHANGE
133-5342 INDICATOR GP-OIL FILTER CHANGE
LINES GP-CUSHION-HITCH
261-4475 LINES GP-CUSHION-HITCH

Truck sale:

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HOLT CAT
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