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344-4045 LINES GP-HYDRAULIC -CUSHION-HITCH S/N NEL1-UP SINGLE CIRCUIT PART OF 346-7718 HYDRAULIC AR 621G


HYDRAULIC SYSTEM
LINES GP-HYDRAULIC
LINES GP-PUMP
MANIFOLD GP
PUMP GP
TANK GP

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

HYDRAULIC SYSTEM

LINES GP-HYDRAULIC
LINES GP-CUSHION-HITCH
261-4475 LINES GP-CUSHION-HITCH
LINES GP-HYDRAULIC
227-8275 LINES GP-HYDRAULIC
LINES GP-HYDRAULIC
344-4045 LINES GP-HYDRAULIC
 

#SEBP63650290
 

344-4045: LINES GP-HYDRAULIC

344-4045 LINES GP-HYDRAULIC -CUSHION-HITCH
S/N NEL1-UP
SINGLE CIRCUIT
PART OF 346-7718 HYDRAULIC AR
i04181970 SEBP6365
3444045 LINES GP-HYDRAULIC Parts scheme 3444045 LINES GP-HYDRAULIC Parts scheme
  For full view, you need register

Parts for your 621G WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 3P-6308 [1] ADAPTER  
2. 5T-2440 [1] TUBE AS  
3. 7I-5473 [2] PLATE AS  
    (EACH INCLUDES)
  1F-0750 [2] NUT-WELD (3/8-16-THD)  
4. 7K-1181 [1] STRAP-CABLE  
5. 8W-1152 [3] SPACER (11.11X19.05X74-MM THK)  
6. 8W-4099 [1] PLATE  
7. 8W-8342 [2] CLAMP  
8. 113-7749 I [1] HOSE AS  
9. 129-8509 I [1] HOSE AS  
10. 170-7704 [4] CLAMP  
11. 212-8755 I [1] HOSE AS  
12. 227-8392 [1] SUPPORT AS  
13. 230-1579 I [1] HOSE AS  
14. 230-1582 [1] TUBE AS  
15. 230-1585 [1] TUBE AS  
16. 230-1586 [1] TUBE AS  
17. 230-7708 [1] HOSE AS  
18. 230-9566 [1] SUPPORT AS  
19. 230-9575 [2] CLAMP  
20. 230-9645 [1] PLATE  
21. 231-7315 [1] PLATE AS  
22. 233-6384 [1] BRACKET AS  
23. 247-9971 I [1] HOSE AS  
24. 247-9972 I [1] HOSE AS  
25. 307-6140 [1] PLATE AS  
  4D-7529 [2] BOSS (3/8-16-THD)  
  9G-5742 [2] BOSS (3/8-16-THD)  
26. 307-6141 [1] TUBE AS  
27. 335-2270 [1] VALVE AS-FLUID SAMPLING (HYDRAULIC OIL)  
  3J-7354 [1] SEAL-O-RING  
  124-6889 [1] VALVE AS-FLUID SAMPLING (HYDRAULIC OIL)  
28. 141-7763 I [1] HOSE AS  
29. 148-8305 [1] ADAPTER AS  
  3J-1907 [1] SEAL-O-RING  
  5P-9617 [1] ADAPTER  
30. 148-8413 [2] REDUCER AS  
    (EACH INCLUDES)
  4J-5477 [1] SEAL-O-RING  
  6V-8934 [1] ADAPTER  
31. 148-8457 [2] UNION AS (STRAIGHT)  
    (EACH INCLUDES)
  6V-8398 [2] SEAL-O-RING  
  6V-8995 [1] UNION (STRAIGHT)  
32. 149-5452 [4] UNION AS (STRAIGHT)  
    (EACH INCLUDES)
  6V-8397 [2] SEAL-O-RING  
  6V-8994 [1] UNION (STRAIGHT)  
33. 165-4931 [1] ELBOW AS  
  3J-1907 [1] SEAL-O-RING  
  6V-8077 [1] ELBOW  
34. 1P-4578 [4] FLANGE-HALF  
35. 1P-4579 [6] FLANGE-HALF  
36. 204-8206 [4] CLAMP  
37. 4D-7794 [4] CLIP  
38. 4J-0522 [3] SEAL-O-RING  
39. 4J-0524 [3] SEAL-O-RING  
40. 4L-6454 [4] BOLT (3/8-16X1-IN)  
41. 5C-6565 [2] BOLT (1/2-13X1.125-IN)  
42. 5K-1094 [2] LOCKWASHER  
43. 5P-1075 [4] WASHER-HARD (10.2X22.5X3-MM THK)  
44. 5P-2228 [3] BOLT (1/2-13X1-IN)  
45. 5P-2566 [4] BOLT (1/2-13X1.5-IN)  
46. 5P-6863 [1] CLIP (TAB)  
47. 5P-6864 [1] CLIP (SLOT)  
48. 5P-7464 [1] CLIP (SLOT)  
49. 5P-7465 [1] CLIP (TAB)  
50. 6V-1249 [1] GROMMET (22-MM ID)  
51. 6V-4432 [4] BOLT (1/2-13X4-IN)  
52. 6V-8188 [2] NUT (1/2-13-THD)  
53. 6V-8367 [4] LOCKWASHER  
54. 6V-9168 [4] NUT (11/16-16-THD)  
55. 6V-9169 [2] NUT (13/16-16-THD)  
56. 7X-0293 [3] BOLT (3/8-16X4.75-IN)  
57. 7X-0310 [4] BOLT (7/16-14X2-IN)  
58. 7X-0313 [4] BOLT (7/16-14X2.75-IN)  
59. 7X-0365 [5] BOLT (3/4-10X1.5-IN)  
60. 8T-4223 [27] WASHER-HARD (13.5X25.5X3-MM THK)  
61. 8T-4835 [4] BOLT (1/2-13X2-IN)  
62. 8T-4896 [3] WASHER-HARD (10.2X18.5X2.5-MM THK)  
63. 8T-4994 [8] WASHER-HARD (20X36.5X3.5-MM THK)  
64. 8T-5360 [10] WASHER (12X22.5X2.5-MM THK)  
65. 8T-8917 [4] BOLT (1/2-13X1.25-IN)  
66. 8T-8919 [4] BOLT (1/2-13X1.75-IN)  
67. 8T-9382 [2] BOLT (7/16-14X1.25-IN)  
68. 8T-9398 [3] BOLT (3/4-10X1.75-IN)  
69. 9K-5028 I [1] HOSE AS  
  I   REFER TO HYDRAULIC INFORMATION SYSTEM
 

#SEBP63650291
 

227-8276: LINES GP-PUMP

227-8276 LINES GP-PUMP
S/N NEL1-UP
PART OF 346-7718 HYDRAULIC AR
i03874280 SEBP6365
2278276 LINES GP-PUMP Parts scheme 2278276 LINES GP-PUMP Parts scheme 2278276 LINES GP-PUMP Parts scheme
  For full view, you need register

Parts for your 621G WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 5T-0711 [1] ELBOW  
2. 6E-5065 [1] SCREEN AS (PUMP LINES)  
  6E-5066 [2] SCREEN (HYDRAULIC)  
3. 6S-9885 [1] BUSHING-TERMINAL  
4. 6V-0852 C [1] CAP-DUST  
5. 5P-1270 E HOSE (18-CM)  
6. 8J-6875 Y [1] VALVE GP-SHUTTLE (PUMP LINES)  
7. 8W-0084 [1] CLIP  
8. 8W-3204 [1] BRACKET AS  
  5L-8957 [2] STUD-WELD (3/8-16X1-IN)  
9. 8X-7855 [1] ELBOW  
10. 8X-9922 I [1] HOSE AS  
11. 092-3206 [2] SPACER (12.5X35X30-MM THK)  
12. 112-1817 [1] VALVE-BALL (DEAD ENGINE LOWER)  
13. 118-1032 I [1] HOSE AS  
14. 136-2615 I [1] HOSE AS  
15. 164-5567 C [1] COUPLER AS-QUICK DISCONNECT (MALE)  
  6V-3965 [1] FITTING (QUICK DISCONNECT)  
  3J-1907 [1] SEAL-O-RING  
16. 164-5602 [1] PLUG AS  
  8J-5914 [1] PLUG  
  2S-4078 [1] SEAL-O-RING  
17. 167-1814 I [1] HOSE AS  
18. 167-1827 I [1] HOSE AS  
19. 167-1830 I [1] HOSE AS  
20. 167-1853 [1] BRACKET AS  
21. 167-1855 [1] PLATE AS  
22. 167-8380 [1] TUBE AS  
23. 168-8039 [1] ELBOW  
24. 168-8040 [1] ANGLE  
25. 342-2111 CY [1] VALVE GP-SOLENOID & PRESS REDC (PILOT, IMPLEMENT)  
26. 178-0561 Y [1] FILTER GP-OIL (ULTRA HIGH EFFICIENCY)  
27. 202-4006 I [1] HOSE AS  
28. 309-6885 [1] TUBE AS  
29. 234-3427 [1] BRACKET  
30. 234-4978 I [1] HOSE AS  
31. 234-4980 [1] CLAMP  
32. 246-9935 I [1] HOSE AS  
33. 247-9970 I [1] HOSE AS  
34. 252-6526 [1] PLATE  
35. 269-6604 [1] BRACKET  
36. 148-8318 [2] CONNECTOR AS  
    (EACH INCLUDES)
  6V-8634 [1] CONNECTOR  
  3K-0360 [1] SEAL-O-RING  
  6V-8397 [1] SEAL-O-RING  
37. 148-8336 [4] CONNECTOR AS  
    (EACH INCLUDES)
  6V-8636 [1] CONNECTOR  
  3J-1907 [1] SEAL-O-RING  
  6V-8397 [1] SEAL-O-RING  
38. 148-8375 [1] ELBOW AS  
  6V-8981 [1] ELBOW  
  6V-8398 [2] SEAL-O-RING  
39. 148-8377 [1] ELBOW AS  
  6V-8980 [1] ELBOW  
  6V-8397 [2] SEAL-O-RING  
40. 148-8378 [2] ELBOW AS  
    (EACH INCLUDES)
  6V-8724 [1] ELBOW  
  3J-1907 [1] SEAL-O-RING  
  6V-8397 [1] SEAL-O-RING  
41. 148-8384 [1] ELBOW AS  
  6V-8979 [1] ELBOW  
  4J-5477 [2] SEAL-O-RING  
42. 148-8409 [1] PLUG AS  
  9S-8008 [1] PLUG (1-1/16-12-THD)  
  3D-2824 [1] SEAL-O-RING  
43. 148-8411 [1] PLUG AS  
  9S-4185 [1] PLUG (3/4-16-THD)  
  3K-0360 [1] SEAL-O-RING  
44. 148-8413 [1] REDUCER AS (ORFS)  
  6V-8934 [1] ADAPTER  
  4J-5477 [1] SEAL-O-RING  
45. 148-8415 [1] REDUCER AS (ORFS)  
  6V-8936 [1] REDUCER  
  6V-8397 [1] SEAL-O-RING  
46. 148-8433 [1] TEE AS (ORFS)  
  6V-9836 [1] TEE-SWIVEL  
  6V-8397 [2] SEAL-O-RING  
47. 150-4037 [1] TEE AS  
  6V-9844 [1] TEE-SWIVEL  
  6V-8398 [2] SEAL-O-RING  
48. 150-4043 [1] CONNECTOR AS  
  6V-9873 [1] CONNECTOR  
  3J-1907 [1] SEAL-O-RING  
  6V-8398 [1] SEAL-O-RING  
49. 153-9301 M [4] BOLT-SOCKET HEAD (M4X0.7X10-MM)  
50. 164-9869 [1] CONNECTOR AS  
  9X-2297 [1] CONNECTOR  
  3J-1907 [1] SEAL-O-RING  
  6V-8397 [1] SEAL-O-RING  
51. 165-4931 [1] ELBOW AS  
  6V-8077 [1] ELBOW  
  3J-1907 [1] SEAL-O-RING  
52. 1P-4578 [4] FLANGE-HALF  
53. 1P-4584 [2] FLANGE-HALF  
54. 205-3692 [2] ELBOW AS  
    (EACH INCLUDES)
  9X-2134 [1] ELBOW  
  2M-9780 [1] SEAL-O-RING  
  6V-8397 [1] SEAL-O-RING  
55. 2H-3922 [1] LOCKWASHER  
56. 2P-1279 [1] LOCKNUT (9/16-18-THD)  
57. 3F-9559 [2] LOCKWASHER  
58. 3J-1907 [1] SEAL-O-RING  
59. 3S-1223 [1] SEAL-O-RING  
60. 4D-7733 [2] CLIP (LOOP)  
61. 4D-7735 [2] CLIP  
62. 4F-7507 [1] SEAL-O-RING  
63. 4J-0522 [2] SEAL-O-RING  
64. 4J-0524 [1] SEAL-O-RING  
65. 4L-6454 [5] BOLT (3/8-16X1-IN)  
66. 5K-1094 [1] LOCKWASHER  
67. 5M-3038 [1] SEAL-O-RING  
68. 9X-8250 [4] CLIP (LOOP)  
69. 5P-1075 [8] WASHER-HARD (10.2X22.5X3-MM THK)  
70. 5P-1076 [2] WASHER-HARD (13.5X30X4-MM THK)  
71. 5P-4295 [2] CLIP  
72. 5P-7470 [1] CLIP (SLOT)  
73. 5P-7471 [1] CLIP (TAB)  
74. 5P-8182 [1] GROMMET (46-MM ID)  
75. 5S-7379 C [6] BOLT (3/8-16X0.875-IN)  
76. 6J-2680 [1] SEAL-O-RING  
77. 6V-1572 [1] CLIP (SLOT)  
78. 6V-1573 [1] CLIP (TAB)  
79. 6V-4432 [2] BOLT (1/2-13X4-IN)  
80. 6V-8185 [2] NUT (1/4-20-THD)  
81. 6V-8188 [2] NUT (1/2-13-THD)  
82. 6V-8801 [3] NUT (3/8-16-THD)  
83. 6V-9168 [1] NUT (11/16-16-THD)  
84. 6V-9169 [1] NUT (13/16-16-THD)  
85. 7X-0326 [2] BOLT (1/2-13X3-IN)  
86. 7X-0333 [2] BOLT (1/2-13X4.75-IN)  
87. 7X-0346 [2] BOLT (5/8-11X2-IN)  
88. 7X-0347 [4] BOLT (5/8-11X2.25-IN)  
89. 7X-0515 [2] WASHER-HARD (17X35X5-MM THK)  
90. 8C-4436 [1] BOLT (1/2-13X1.375-IN)  
91. 8M-2773 C [3] CLIP (LOOP)  
92. 8T-2501 [3] BOLT (3/8-16X2-IN)  
93. 8T-4121 [2] WASHER-HARD (11X21X2.5-MM THK)  
94. 8T-4122 [4] WASHER-HARD (17X32X3.5-MM THK)  
95. 8T-4136 M [2] BOLT (M10X1.5X25-MM)  
96. 8T-4189 M [4] BOLT (M8X1.25X20-MM)  
97. 8T-4205 [4] WASHER-HARD (7.2X14.5X2-MM THK)  
98. 8T-4223 [14] WASHER-HARD (13.5X25.5X3-MM THK)  
99. 8T-4224 [4] WASHER-HARD (8.8X16X2-MM THK)  
100. 8T-4896 [22] WASHER-HARD (10.2X18.5X2.5-MM THK)  
101. 8T-4987 [4] CLAMP-HOSE  
102. 8T-5360 [8] WASHER (12X22.5X2.5-MM THK)  
103. 8T-8916 [4] BOLT (7/16-14X1.5-IN)  
104. 8T-8919 [5] BOLT (1/2-13X1.75-IN)  
105. 8T-9367 [2] BOLT (1/4-20X2-IN)  
106. 8T-9377 [3] BOLT (3/8-16X2.25-IN)  
107. 8T-9382 [4] BOLT (7/16-14X1.25-IN)  
108. 8T-9389 [2] BOLT (1/2-13X2.75-IN)  
109. 7X-0345 [4] BOLT (5/8-11X1.75-IN)  
110. 9B-7237 [3] BOLT (3/8-16X1.25-IN)  
111. 9F-7283 [1] SEAL-O-RING  
112. 8T-2502 C [1] BOLT (3/8-16X1.125-IN)  
113. 299-3424 [4] WASHER-HARD (17.5X30X6-MM THK)  
  C   CHANGE FROM PREVIOUS TYPE
  E   ORDER BY THE CENTIMETER
  I   REFER TO HYDRAULIC INFORMATION SYSTEM
  M   METRIC PART
  Y   SEPARATE ILLUSTRATION
 

#SEBP63650292
 

479-2712: MANIFOLD GP-VALVE

479-2712 MANIFOLD GP-VALVE
S/N NEL1-UP
PART OF 285-3079 VALVE GP-CONTROL
i06132983 SEBP6365
4792712 MANIFOLD GP-VALVE Parts scheme
  For full view, you need register

Parts for your 621G WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 8J-6815 [1] PLUG-ORIFICE  
2. 102-7607 [1] SPRING  
3. 148-8395 [1] PLUG AS  
  3K-0360 [1] SEAL-O-RING  
  9S-8005 [1] PLUG (3/4-16-THD)  
4. 152-8340 Y [1] VALVE GP-SOLENOID (24-VOLT)  
5. 164-5619 [1] PLUG AS  
  2M-9780 [1] SEAL-O-RING  
  9S-8006 [1] PLUG (7/8-14-THD)  
6. 367-6001 [2] PLUG AS  
  4J-7533 [1] SEAL-O-RING  
  360-3675 [1] PLUG (5/16-24-THD)  
   
  2D-6392 F [1] SEAL-O-RING  
  4J-0521 F [1] SEAL-O-RING  
  4J-0525 F [1] SEAL-O-RING  
  6M-5062 F [1] SEAL-O-RING  
  8F-9538 F [1] SEAL-O-RING  
   
    PARTS SHOWN IN GRAPHIC(S) WITHOUT A REFERENCE NUMBER ARE NOT SERVICED SEPARATELY
  F   NOT SHOWN
  Y   SEPARATE ILLUSTRATION
 

#SEBP63650293
 

203-2236: PUMP & MTG GP-CUSHION-HITCH

203-2236 PUMP & MTG GP-CUSHION-HITCH
S/N NEL1-UP
PART OF 346-7718 HYDRAULIC AR
i01481280 SEBP6365
  For full view, you need register

Parts for your 621G WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  202-1335 Y [1] PUMP GP-PISTON (CUSHION-HITCH)  
   
  8W-8273 [1] COUPLING  
  6D-1004 [1] GASKET  
  6V-8801 [2] NUT (3/8-16-THD)  
  148-8407 [1] PLUG AS  
  3J-1907 [1] SEAL-O-RING  
  9S-4191 [1] PLUG (9/16-18-THD)  
  5S-4455 [1] RING-RETAINING  
  2M-4779 [2] STUD-TAPERLOCK (3/8-16X1.75-IN)  
  8T-4896 [2] WASHER-HARD (10.2X18.5X2.5-MM THK)  
  R   REMANUFACTURED PART MAY BE AVAILABLE
  Y   SEPARATE ILLUSTRATION
 

#SEBP63650294
 

202-1335: PUMP GP-PISTON

202-1335 PUMP GP-PISTON
S/N NEL1-UP
PART OF 203-2236 PUMP & MTG GP-CUSHION-HITCH
i01481272 SEBP6365
2021335 PUMP GP-PISTON Parts scheme
  For full view, you need register

Parts for your 621G WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 8T-9597 [1] RING-RETAINING  
2. 189-4719 [2] BEARING  
3. 189-4710 Y [1] ROTATING GP-PUMP (HYDRAULIC)  
4. 117-8216 [4] SEAL-O-RING  
5. 6V-5192 M [4] BOLT-SOCKET HEAD (M8X1.25X30-MM)  
6. 189-4718 [1] BEARING  
7. 189-4716 B [1] SHIM (2.5-MM THK)  
8. 169-7442 [1] SEAL-O-RING  
9. 189-4735 [1] GUIDE  
10. 189-4736 [1] SPRING  
11. 191-5185 [1] PLUNGER  
12. 9S-8004 [1] PLUG (9/16-18-THD)  
13. 3J-1907 [1] SEAL-O-RING  
14. 189-4715 [1] SHAFT  
15. 105-3035 [1] CONE-BEARING  
16. 189-4720 [1] SEAL-SHAFT  
17. 189-4714 [1] SWASHPLATE AS  
18. 189-4733 [1] PISTON  
19. 189-4734 [1] GUIDE  
20. 136-8423 [1] PLUG-BREAK OFF  
21. 186-4259 [1] PIN  
22. 137-3780 [2] PLUG  
23. 193-3182 Y [1] VALVE GP-PUMP CONTROL (PRESSURE, FLOW COMPENSATOR)  
24. 9X-7680 [3] SEAL-O-RING  
25. 9S-8002 [1] PLUG (7/16-20-THD)  
26. 3J-7354 [1] SEAL-O-RING  
27. 8T-8442 M [4] BOLT-SOCKET HEAD (M6X1X30-MM)  
28. 203-8609 [1] CUP-BEARING  
  B   USE AS REQUIRED
  M   METRIC PART
  Y   SEPARATE ILLUSTRATION
 

#SEBP63650295
 

8D-6905: PUMP GP-VANE

8D-6905 PUMP GP-VANE
S/N NEL1-UP
PART OF 346-7718 HYDRAULIC AR
i00158257 SEBP6365
8D6905 PUMP GP-VANE Parts scheme
  For full view, you need register

Parts for your 621G WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 9J-5075 Y [1] PUMP GP-VANE (HYDRAULIC, STEERING)  
2. 5F-3999 [1] SEAL-O-RING  
3. 8D-5209 [1] COUPLING  
4. 2D-6417 [1] RING-LOCK  
5. 7X-0448 [2] NUT (5/8-11-THD)  
  8T-4122 [2] WASHER-HARD (17X32X3.5-MM THK)  
  Y   SEPARATE ILLUSTRATION
 

#SEBP63650296
 

9J-5075: PUMP GP-VANE

9J-5075 PUMP GP-VANE
S/N NEL1-UP
PART OF 8D-6905 PUMP GP-VANE
i00158335 SEBP6365
9J5075 PUMP GP-VANE Parts scheme
  For full view, you need register

Parts for your 621G WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 3G-7664 Y [1] CARTRIDGE GP-VANE PUMP (144-L/MIN (38-US GPM))(REAR)  
2. 3G-7656 Y [1] CARTRIDGE GP-VANE PUMP (189-L/MIN (50-US GPM))(FRONT)  
3. 3J-7719 [1] RING-RETAINING (INNER)  
4. 3L-1425 [1] BALL BEARING  
5. 2J-7763 [1] WASHER (2.188X3.078X0.05-IN THK)  
6. 5P-0904 [1] SEAL-LIP TYPE  
7. 6V-2318 C [1] SEAL-LIP TYPE  
8. 1J-6474 [1] RING-RETAINING (EXTERNAL)  
9. 9J-5099 [1] SHAFT  
10. 1U-3968 C [1] BODY  
11. 8J-1578 [1] COVER AS  
12. 7J-8080 [8] DAMPER-BOLT  
13. 4J-7781 [1] COVER  
14. 4J-7945 [4] BOLT (3/4-10X11.5-IN)  
15. 6E-2943 [1] PLUG  
   
    AVAILABLE REPAIR KIT(S):
  1U-0380 C [1] KIT-FLEXPLATE (35 SERIES)  
  1U-0381 C [1] KIT-FLEXPLATE (45 SERIES)  
  C   CHANGE FROM PREVIOUS TYPE
  R   REMANUFACTURED PART MAY BE AVAILABLE
  Y   SEPARATE ILLUSTRATION
 

#SEBP63650297
 

189-4710: ROTATING GP-PUMP

189-4710 ROTATING GP-PUMP
S/N NEL1-UP
PART OF 202-1335 PUMP GP-PISTON
i01364891 SEBP6365
1894710 ROTATING GP-PUMP Parts scheme
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Parts for your 621G WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 189-4724 [1] KIT-PISTON  
    (INCLUDES 9 SETS OF PISTON ASSEMBLY)
2. 189-4725 [1] BARREL  
3. 189-4726 [1] PLATE  
4. 189-4727 [1] PLATE  
5. 189-4728 [1] BEARING  
6. 189-4729 [1] SPRING  
7. 189-4730 [3] PIN  
8. 8C-3312 [1] RING-RETAINING  
9. 189-4732 [1] SPACER (17.6X26.5X2-MM THK)  
 

#SEBP63650298
 

244-8853: TANK & MTG GP-HYDRAULIC

244-8853 TANK & MTG GP-HYDRAULIC
S/N NEL1-UP
PART OF 346-7718 HYDRAULIC AR
i03581466 SEBP6365
2448853 TANK & MTG GP-HYDRAULIC Parts scheme
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Parts for your 621G WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 358-9477 C [1] VALVE AS (BREAKER)(HYDRAULIC TANK)  
  3D-2824 [1] SEAL-O-RING  
2. 223-7377 [1] ADAPTER AS  
  222-2210 [1] ADAPTER  
  3J-1907 [1] SEAL-O-RING  
3. 245-3778 Y [1] TANK GP-HYDRAULIC  
4. 256-9371 [1] TREAD  
5. 8T-8917 [14] BOLT (1/2-13X1.25-IN)  
6. 7U-4898 [10] SCREW (3/8-16X0.75-IN)  
7. 8T-4223 [14] WASHER-HARD (13.5X25.5X3-MM THK)  
  C   CHANGE FROM PREVIOUS TYPE
  Y   SEPARATE ILLUSTRATION
 

#SEBP63650299
 

245-3778: TANK GP-HYDRAULIC

245-3778 TANK GP-HYDRAULIC
S/N NEL1-UP
PART OF 244-8853 TANK & MTG GP-HYDRAULIC
i02010041 SEBP6365
2453778 TANK GP-HYDRAULIC Parts scheme 2453778 TANK GP-HYDRAULIC Parts scheme
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Parts for your 621G WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 2G-9354 [1] COVER AS  
  5D-4218 [1] BLOCK  
2. 2G-9356 [1] GASKET  
3. 3D-6678 [1] STRAINER (METAL)(HYDRAULIC OIL FILLER)  
4. 4J-3754 [1] CAP-FILLER (HYDRAULIC TANK)  
5. 4J-3816 [1] PLATE  
6. 5D-1901 [1] WASHER (106.5X126.5X2.5-MM THK)  
7. 5J-3316 [1] GASKET  
8. 5P-1717 [4] CLAMP-HOSE  
9. 5T-0805 [1] BAFFLE  
10. 5T-1132 [1] COVER  
11. 6G-1249 [1] GASKET  
12. 6J-1080 [1] GROMMET  
13. 6J-1081 [1] GLASS-SIGHT (HYDRAULIC OIL TANK)  
14. 214-2346 [1] PLATE-INDICATOR (HYDRAULIC OIL LEVEL)  
15. 7B-2805 [1] RING-LOCK  
16. 9J-8243 [1] RETAINER  
17. 9M-7394 [1] LEVER  
18. 178-8515 [1] ELBOW  
19. 245-3779 [1] TANK AS-HYDRAULIC  
20. 030-8538 [2] BOLT (1/2-13X1.25-IN)  
21. 031-0219 [8] BOLT-LOCKING (3/8-16X1.75-IN)  
22. 035-2017 [4] SCREW-BUTTON HEAD (3/8-16X1-IN)  
23. 0S-1585 [6] BOLT (1/2-13X1.5-IN)  
24. 0S-1594 [74] BOLT (3/8-16X1-IN)  
25. 1L-5072 [1] DOWEL  
26. 1M-8649 [1] RING-RETAINING  
27. 1P-4579 [2] FLANGE-HALF  
28. 2H-6338 [3] SEAL-O-RING  
29. 2K-4973 [74] LOCKNUT (3/8-16-THD)  
30. 3B-0551 [1] PLUG-PIPE  
32. 4B-9782 [1] BALL  
33. 4J-3815 [1] GASKET  
34. 4P-0519 [1] ADAPTER AS-DRAIN  
  109-5840 [1] ADAPTER-PLUG  
  109-5839 [1] PLUG-DRAIN (HYDRAULIC TANK)  
35. 5D-1902 [1] COVER-HYDRAULIC CAP  
36. 5D-4177 [1] HOSE  
37. 5F-8000 [1] SEAL-O-RING  
38. 5H-6005 [4] SEAL-O-RING  
39. 5H-8985 [1] PIN-SPRING  
40. 5K-7143 [6] BOLT-SELF-LOCKING (1/2-13X1.5-IN)  
41. 5K-9107 [9] BOLT-LOCKING (3/8-16X0.75-IN)  
42. 5M-2894 [8] WASHER-HARD (10.2X18.5X2.5-MM THK)  
43. 5P-1075 [9] WASHER-HARD (10.2X22.5X3-MM THK)  
44. 5P-8245 [12] WASHER-HARD (13.5X25.5X3-MM THK)  
45. 5T-0003 [1] ELBOW  
46. 5T-1130 [1] TUBE AS  
47. 5T-7755 [1] SCREEN AS (HYDRAULIC TANK)  
48. 5T-7761 [1] TUBE AS  
49. 6V-3830 [1] SEAL-O-RING  
50. 8T-4223 [2] WASHER-HARD (13.5X25.5X3-MM THK)  
51. 162-0177 [1] PLUG AS  
  3J-1907 [1] SEAL-O-RING  
  9S-8004 [1] PLUG (9/16-18-THD)  
52. 9T-4915 Y [1] FILTER GP-OIL (HYDRAULIC TANK)  
  Y   SEPARATE ILLUSTRATION
 

Information:

Caterpillar Parts SIS Catalog 621G :

LINES GP-HYDRAULIC
227-8275 LINES GP-HYDRAULIC
LINES GP-CUSHION-HITCH
261-4475 LINES GP-CUSHION-HITCH
INDICATOR GP-OIL FILTER CHANGE
133-5342 INDICATOR GP-OIL FILTER CHANGE
346-7718 HYDRAULIC AR
FILTER GP-OIL
9T-4915 FILTER GP-OIL
FILTER GP-OIL
178-0561 FILTER GP-OIL
DRIVE GP-PUMP
6I-3638 DRIVE GP-PUMP
CYLINDER GP-LOAD
108-3592 CYLINDER GP-LOAD
LINES GP-PUMP
227-8276 LINES GP-PUMP
MANIFOLD GP-VALVE
479-2712 MANIFOLD GP-VALVE
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
TANK & MTG GP-HYDRAULIC
244-8853 TANK & MTG GP-HYDRAULIC

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