AVSPARE.COM
parts catalog
  1. Home
  2. Caterpillar catalog

421-1146 PUMP GP-PISTON S/N WTA1-UP PART OF 420-4444 PUMP GP-PISTON ALSO AN ATTACHMENT 621K WHEEL TRACTOR-SCRAPER


HYDRAULIC SYSTEM
PUMP GP
TANK GP

WHEEL TRACTOR-SCRAPER 621K WHEEL TRACTOR-SCRAPER WTA
 621K Wheel Tractor-Scraper WTA00001-UP (MACHINE) POWERED BY C13 Engine SEBP6383 621K WTA   (2013)

HYDRAULIC SYSTEM

PUMP GP
PUMP GP-PISTON
389-6779 PUMP GP-PISTON
PUMP GP-PISTON
420-4444 PUMP GP-PISTON
PUMP GP-PISTON
421-1146 PUMP GP-PISTON
ROTATING GP-PUMP
356-1576 ROTATING GP-PUMP
ROTATING GP-PUMP
389-1201 ROTATING GP-PUMP
ROTATING GP-PUMP
436-4708 ROTATING GP-PUMP
 

#SEBP63830670
 

421-1146: PUMP GP-PISTON

421-1146 PUMP GP-PISTON
S/N WTA1-UP
PART OF 420-4444 PUMP GP-PISTON
ALSO AN ATTACHMENT
i05445609 SEBP6383
4211146 PUMP GP-PISTON Parts scheme
  For full view, you need register

Parts for your 621K WHEEL TRACTOR-SCRAPER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 389-1201 Y [1] ROTATING GP-PUMP (IMPLEMENT, STEERING)(IMPLEMENT)  
2. 133-8739 [1] SEAL-LIP TYPE  
3. 351-6131 [2] BEARING-CRADLE  
4. 399-5839 [1] SWASHPLATE  
5. 399-5840 [1] SHAFT-DRIVE  
6. 105-1638 [1] SPACER (30X38X3-MM THK)  
7. 105-3031 [1] CONE-BEARING  
8. 3B-2263 [1] CUP-BEARING  
9. 105-3032 [1] CONE-BEARING  
10. 105-3033 [1] CUP-BEARING  
11. 140-1739 [1] RING-RETAINING  
12. 6V-8201 M [4] BOLT-SOCKET HEAD (M16X2X45-MM)  
13. 304-0479 Y [1] VALVE GP-PUMP CONTROL (FLOW COMPENSATOR)  
14. 247-0478 [1] SPRING  
15. 399-5838 [1] PLATE-CONTROL  
16. 120-4394 [3] PLUG-BREAK OFF  
17. 168-3504 [1] SEAL  
18. 214-9203 [1] PLUG-ORIFICE  
19. 9X-8979 [1] DOWEL  
20. 379-5187 [1] SPRING  
21. 333-7840 [1] STOP  
22. 280-7870 [1] GASKET  
23. 3J-7354 [1] SEAL-O-RING  
24. 9S-8002 [1] PLUG (7/16-20-THD)  
25. 8T-8442 M [4] BOLT-SOCKET HEAD (M6X1X30-MM)  
26. 351-6085 [1] PISTON-CONTROL  
27. 374-6722 [1] PLUG-CONTROL  
28. 8T-7525 [1] SEAL-O-RING  
29. 264-2483 [1] COUPLER  
30. 247-2852 [1] STOP  
  M   METRIC PART
  Y   SEPARATE ILLUSTRATION
 

#SEBP63830671
 

356-1576: ROTATING GP-PUMP

356-1576 ROTATING GP-PUMP
S/N WTA1-UP
PART OF 389-6779 PUMP GP-PISTON
ALSO AN ATTACHMENT
i04054049 SEBP6383
3561576 ROTATING GP-PUMP Parts scheme
  For full view, you need register

Parts for your 621K WHEEL TRACTOR-SCRAPER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 436-4708 Y [1] ROTATING GP-PUMP  
2. 168-7943 [9] PISTON AS-PUMP  
3. 258-5194 [1] PLATE  
4. 138-8175 [1] BEARING-SPHERICAL  
  Y   SEPARATE ILLUSTRATION
 

#SEBP63830672
 

389-1201: ROTATING GP-PUMP

389-1201 ROTATING GP-PUMP
S/N WTA1-UP
PART OF 421-1146 PUMP GP-PISTON
ALSO AN ATTACHMENT
i05108771 SEBP6383
3891201 ROTATING GP-PUMP Parts scheme
  For full view, you need register

Parts for your 621K WHEEL TRACTOR-SCRAPER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 105-1646 [9] PISTON AS-PUMP  
2. 188-9637 [1] PLATE-RETRACTION  
3. 105-1648 [1] BEARING  
4. 105-1651 [1] SPRING  
5. 180-6213 [1] RING-RETAINING  
6. 105-1650 [2] SPACER  
 

#SEBP63830673
 

436-4708: ROTATING GP-PUMP

436-4708 ROTATING GP-PUMP
S/N WTA1-UP
PART OF 356-1576 ROTATING GP-PUMP
ALSO AN ATTACHMENT
i05619509 SEBP6383
4364708 ROTATING GP-PUMP Parts scheme
  For full view, you need register

Parts for your 621K WHEEL TRACTOR-SCRAPER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 233-0455 [1] BARREL  
2. 168-7941 [1] SPRING  
3. 168-7940 [3] PIN  
4. 096-0015 [1] RING-RETAINING  
5. 168-7942 [1] WASHER (28.2X36.5X2-MM THK)  
 

#SEBP63830674
 

452-3320: ROTATING GP-PUMP

452-3320 ROTATING GP-PUMP
S/N WTA1-UP
PART OF 338-1857, 457-6570 MOTOR GP-PISTON
ALSO AN ATTACHMENT
i05647652 SEBP6383
4523320 ROTATING GP-PUMP Parts scheme
  For full view, you need register

Parts for your 621K WHEEL TRACTOR-SCRAPER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 258-5194 [1] PLATE  
2. 168-7943 [9] PISTON AS-PUMP  
3. 313-4424 [1] PLATE-CONTROL  
4. 096-0015 [1] RING-RETAINING  
5. 168-7941 [1] SPRING  
6. 168-7942 [1] WASHER (28.2X36.5X2-MM THK)  
7. 168-7940 [3] PIN  
8. 138-8175 [1] BEARING-SPHERICAL  
 

#SEBP63830675
 

434-7590: TANK & FILTER GP-HYDRAULIC

434-7590 TANK & FILTER GP-HYDRAULIC
S/N WTA1-UP
PART OF 436-1573 TANK & MTG GP-HYDRAULIC
ALSO AN ATTACHMENT
i05448032 SEBP6383
4347590 TANK & FILTER GP-HYDRAULIC Parts scheme 4347590 TANK & FILTER GP-HYDRAULIC Parts scheme
  For full view, you need register

Parts for your 621K WHEEL TRACTOR-SCRAPER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 0L-0646 [1] SPRING-VALVE  
2. 1P-4578 [4] FLANGE-HALF  
3. 1P-4579 [2] FLANGE-HALF  
4. 1P-4582 [6] FLANGE-HALF  
5. 1U-2827 [1] GUIDE-VALVE  
6. 2D-4202 [1] PLATE  
7. 2H-6124 [1] SEAL-O-RING  
8. 4J-0520 [2] SEAL-O-RING  
9. 4J-0522 [1] SEAL-O-RING  
10. 4T-8698 [1] WASHER (12.2X62X3.5-MM THK)  
11. 5D-1911 [1] COVER-HYDRAULIC CAP  
12. 492-6794 [1] STRAINER (PLASTIC)  
13. 5H-6005 [4] SEAL-O-RING  
14. 5H-6733 [1] SEAL-O-RING  
15. 5M-2057 [1] SEAL-O-RING  
16. 6E-2060 [1] COVER AS  
17. 6E-5101 [1] PLATE  
18. 6J-1080 [1] GROMMET  
19. 7F-8268 [1] SEAL-O-RING  
20. 7J-2656 [1] SCREEN AS (HYDRAULIC TANK)  
21. 8C-3206 [4] FLANGE-HALF  
22. 8J-8782 [1] BODY-DRAIN VALVE  
23. 8J-8783 [1] VALVE-DRAIN  
24. 8T-3298 [1] SEAL-RECTANGULAR  
25. 9H-6454 [1] GASKET  
26. 9J-7031 [1] PLUG-DRAIN  
27. 9M-7394 [1] LEVER  
28. 9T-7570 [1] VALVE-BYPASS (HYDRAULIC OIL FILTER)  
29. 9T-7571 [1] SCREEN AS (HYDRAULIC TANK)  
30. 9T-7572 [1] FLANGE  
31. 9T-9227 [1] SCREEN AS (HYDRAULIC TANK)  
32. 103-9603 [1] GAUGE-SIGHT  
33. 118-8693 [1] SCREEN  
34. 139-1537 [2] FILTER ELEMENT AS-OIL (ULTRA HIGH EFFICIENCY)  
35. 155-3624 [1] PLUG AS  
  9S-4182 [1] PLUG (7/16-20-THD)  
  3J-7354 [1] SEAL-O-RING  
36. 164-4180 [1] PLUG AS  
  9S-4181 [1] PLUG (1-5/16-12-THD)  
  7M-8485 [1] SEAL-O-RING  
37. 231-9489 [1] TUBE AS  
38. 243-1949 [1] GASKET  
39. 244-4094 [1] BASE-FILTER  
40. 245-0824 [1] TUBE AS  
41. 245-9740 [1] GASKET  
42. 253-1702 [1] COVER  
43. 267-7369 [1] SPACER (23X128X6-MM THK)  
44. 300-1960 [1] PLATE-IDENTIFICATION (HYDRAULIC OIL LEVEL CHECK)  
45. 318-2172 [1] RETAINER AS  
46. 319-1637 [1] RETAINER  
47. 346-4884 [1] TUBE AS  
48. 346-4885 [1] TUBE AS  
49. 346-8304 [1] TUBE AS  
50. 347-0193 [1] BRACKET  
51. 376-3056 [1] BRACKET  
52. 376-3057 [1] GASKET  
53. [1] ROD-FILTER  
54. 434-7591 [1] TANK AS  
55. 192-4744 M [6] BOLT (M10X1.5X20-MM)  
56. 1L-5072 [1] DOWEL  
57. 2J-7761 [1] RING-RETAINING  
58. 2L-1699 [1] PIN-SPRING  
59. 3E-4353 [4] WASHER-HARD (11X25X3-MM THK)  
60. 3J-7421 [1] GASKET  
61. 5H-4019 [2] COVER  
62. 5H-4020 [1] COVER  
63. 5K-5959 [1] SEAL-O-RING  
64. 6H-9361 [1] RING-RETAINING  
65. 6V-5839 [8] WASHER (11X21X2.5-MM THK)  
66. 6V-7732 M [10] BOLT (M10X1.5X25-MM)  
67. 6V-7744 M [8] LOCKNUT (M10X1.5-THD)  
68. 7B-3039 [1] SPRING  
69. 7D-1195 [1] SEAL-O-RING  
70. 7H-1447 [1] CAP-FILLER (HYDRAULIC TANK)  
71. 8T-0389 M [1] LOCKNUT (M10X1.5-THD)  
72. 8T-0722 M [4] BOLT-LOCKING (M10X1.5X30-MM)  
73. 8T-2275 [1] BALL  
74. 8T-4121 [61] WASHER-HARD (11X21X2.5-MM THK)  
75. 8T-4133 M [4] NUT (M10X1.5-THD)  
76. 8T-4137 M [39] BOLT (M10X1.5X20-MM)  
77. 8T-4183 M [16] BOLT (M12X1.75X40-MM)  
78. 8T-4196 M [16] BOLT (M10X1.5X35-MM)  
79. 8T-4223 [16] WASHER-HARD (13.5X25.5X3-MM THK)  
80. 9X-2125 M [4] BOLT-LOCKING (M10X1.5X25-MM)  
  M   METRIC PART
 

#SEBP63830676
 

328-5271: TANK & MTG GP-HYDRAULIC

328-5271 TANK & MTG GP-HYDRAULIC -REAR
S/N WTA1-UP
BRAKE COOLING, EXPANSION TANK
PART OF 373-8552 HYDRAULIC AR
Type 1
ALSO AN ATTACHMENT
i04349869 SEBP6383
3285271 TANK & MTG GP-HYDRAULIC Parts scheme
  For full view, you need register

Parts for your 621K WHEEL TRACTOR-SCRAPER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 335-8393 Y [1] TANK GP-HYDRAULIC (BRAKE OIL EXPANSION TANK)  
2. 344-1404 [2] PLATE AS  
3. 198-4778 [12] WASHER-HARD (13.5X30X12-MM THK)  
4. 8T-4183 M [12] BOLT (M12X1.75X40-MM)  
   
    PARTS SHOWN IN GRAPHIC(S) WITHOUT A REFERENCE NUMBER ARE NOT SERVICED SEPARATELY
  M   METRIC PART
  Y   SEPARATE ILLUSTRATION
 

#SEBP63830677
 

328-5271: TANK & MTG GP-HYDRAULIC

328-5271 TANK & MTG GP-HYDRAULIC -REAR
S/N WTA1-UP
BRAKE COOLING, EXPANSION TANK
PART OF 373-8552 HYDRAULIC AR
Type 2
ALSO AN ATTACHMENT
i06865290 SEBP6383
3285271 TANK & MTG GP-HYDRAULIC Parts scheme
  For full view, you need register

Parts for your 621K WHEEL TRACTOR-SCRAPER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 344-5675 CM [4] NUT (M10X1.5-THD)  
2. 452-3280 CY [1] TANK GP-HYDRAULIC  
3. 198-4778 C [4] WASHER-HARD (13.5X30X12-MM THK)  
4. 8T-4183 CM [4] BOLT (M12X1.75X40-MM)  
5. 474-3019 C [1] PLATE  
6. 7X-7729 C [8] WASHER (11X25X3-MM THK)  
7. 8T-4185 CM [4] BOLT (M10X1.5X50-MM)  
  C   CHANGE FROM PREVIOUS TYPE
  M   METRIC PART
  Y   SEPARATE ILLUSTRATION
 

#SEBP63830678
 

436-1573: TANK & MTG GP-HYDRAULIC

436-1573 TANK & MTG GP-HYDRAULIC
S/N WTA1-UP
PART OF 373-8532 HYDRAULIC AR
ALSO AN ATTACHMENT
i05447740 SEBP6383
4361573 TANK & MTG GP-HYDRAULIC Parts scheme
  For full view, you need register

Parts for your 621K WHEEL TRACTOR-SCRAPER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 8G-0841 [2] MOUNT AS  
2. 354-4889 [1] BLOCK  
3. 507-0643 [1] BREATHER AS (HYDRAULIC)  
  3D-2824 [1] SEAL-O-RING  
4. 434-7590 Y [1] TANK & FILTER GP-HYDRAULIC  
5. 9X-8257 [2] WASHER (17.5X30X3.5-MM THK)  
6. 198-4780 [4] WASHER-HARD (17.5X32X8-MM THK)  
7. 267-8821 [4] WASHER (17X36X12-MM THK)  
8. 5T-1906 [2] PLATE  
9. 7X-2555 M [2] BOLT (M16X2X80-MM)  
10. 8T-4140 M [2] BOLT (M16X2X60-MM)  
11. 8T-4193 M [2] BOLT (M16X2X50-MM)  
12. 8T-6383 M [4] BOLT (M16X2X200-MM)  
  M   METRIC PART
  Y   SEPARATE ILLUSTRATION
 

#SEBP63830679
 

335-8393: TANK GP-HYDRAULIC

335-8393 TANK GP-HYDRAULIC -BRAKE OIL EXPANSION TANK
S/N WTA1-UP
PART OF 328-5271 TANK & MTG GP-HYDRAULIC
ALSO AN ATTACHMENT
i04349009 SEBP6383
3358393 TANK GP-HYDRAULIC Parts scheme
  For full view, you need register

Parts for your 621K WHEEL TRACTOR-SCRAPER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4J-8251 [1] GROMMET  
2. 4J-8252 [1] GAUGE-SIGHT (HYDRAULIC TANK)  
3. 6E-2060 [1] COVER AS  
4. 9R-2630 [1] RETAINER  
5. 282-2270 [1] STRAINER-FUEL  
6. 306-3025 [1] PLATE  
7. 340-1566 [1] TANK AS  
  8T-7501 M [4] STUD-WELD (M10X1.5X38-MM)  
8. 419-4904 [1] CAP-VENTED  
9. 155-3624 [1] PLUG AS  
  9S-4182 [1] PLUG (7/16-20-THD)  
  3J-7354 [1] SEAL-O-RING  
10. 6V-5167 [1] SEAL-O-RING  
11. 6V-5839 [4] WASHER (11X21X2.5-MM THK)  
12. 8L-2777 [2] SEAL-O-RING  
13. 8T-4133 M [4] NUT (M10X1.5-THD)  
14. 9X-2125 M [2] BOLT-LOCKING (M10X1.5X25-MM)  
  M   METRIC PART
 

Information:

Caterpillar Parts SIS Catalog 621K :

PUMP GP-PISTON
420-4444 PUMP GP-PISTON
PUMP GP-PISTON
389-6779 PUMP GP-PISTON
PUMP GP-PISTON
376-5515 PUMP GP-PISTON
PUMP GP-PISTON
329-8116 PUMP GP-PISTON
PUMP & MTG GP-ELEVATOR
420-9325 PUMP & MTG GP-ELEVATOR
PUMP & MTG GP-ELEVATOR
420-9325 PUMP & MTG GP-ELEVATOR
PUMP & MOTOR GP-HYDRAULIC
433-0612 PUMP & MOTOR GP-HYDRAULIC
PLUG GP-HYDRAULIC LINES
343-0709 PLUG GP-HYDRAULIC LINES
ROTATING GP-PUMP
356-1576 ROTATING GP-PUMP
ROTATING GP-PUMP
389-1201 ROTATING GP-PUMP
ROTATING GP-PUMP
436-4708 ROTATING GP-PUMP
ROTATING GP-PUMP
452-3320 ROTATING GP-PUMP
TANK & FILTER GP-HYDRAULIC
434-7590 TANK & FILTER GP-HYDRAULIC
TANK & MTG GP-HYDRAULIC
328-5271 TANK & MTG GP-HYDRAULIC
TANK & MTG GP-HYDRAULIC
328-5271 TANK & MTG GP-HYDRAULIC
TANK & MTG GP-HYDRAULIC
436-1573 TANK & MTG GP-HYDRAULIC

Truck sale:

Caterpillar 621K
 
Caterpillar 621K
- Road Scraper
ALTORFER INC.
Caterpillar 621K
 
Caterpillar 621K
- Road Scraper
HOLT CAT
Caterpillar 621K
 
Caterpillar 621K
- Road Scraper
HOLT CAT
CATERPILLAR 621K 2016
 
CATERPILLAR 621K 2016
- WHEEL TRACTOR SCRAPERS
HOLT CAT
CATERPILLAR 621K 2015
 
CATERPILLAR 621K 2015
- WHEEL TRACTOR SCRAPERS
HOLT CAT
Back to top
Contacts Request list Affiliate disclosure
The names Cat, Caterpillar, John Deere, Komatsu, Volvo, Hitachi, Doosan, JCB, Hyundai or any other original equipment manufacturers are registered trademarks of the respective original equipment manufacturers. All names, descriptions, numbers and symbols are used for reference purposes only.
AVSpare.com is in no way associated with any of the manufacturers we have listed. All manufacturer's names and descriptions are for reference only. Cat® and Caterpillar® are registered trademarks of Caterpillar, Inc.