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2S534 RETARDER OIL COOLER GROUP--Type 2 Also part of 5D7690 Retarder Arrangement listed on Page 182 621


POWER TRAIN
COOLER GP
BRAKING SYSTEM
VALVE GP
HYDRAULIC SYSTEM
LINES GP-HYDRAULIC
LINES GP-PUMP
PUMP GP
LINES GP-PUMP


POWER TRAIN

COOLER GP
 

#UE0700420430
 

2S-0534: RETARDER OIL COOLER GROUP

2S534 RETARDER OIL COOLER GROUP--Type 2
Also part of 5D7690 Retarder Arrangement listed on Page 182
c122500 UE070042
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Parts for your 621 WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 0S-1594 [5] BOLT  
2. 3B-4506 [24] LOCKWASHER  
3. 5S-0585 [1] PIPE  
4. 6L-4364 [1] HOSE  
5. 5B-9603 [1] BOLT  
6. 7S-1721 C [1] HOUSING ASSEM.  
7. 4J-6925 [2] STUD (2.60" Long)  
8. 2M-6471 [2] PLUG  
9. 4M-1336 [1] FERRULE  
10. 3D-0490 [2] STUD (2" Long)  
    (Parts of 7S1721 Housing Assem.)
11. 1A-2029 [8] BOLT  
12. 5S-3412 C [1] PIPE  
  0S-1588 [1] BOLT  
13. 6F-7767 [2] GASKET  
14. 3S-7173 [1] ELBOW  
15. 6L-3943 [2] HOSE  
16. 5H-4450 [6] CLAMP  
17. [2] BOLT  
18. 3B-4508 [20] LOCKWASHER  
19. 2S-0872 [1] BONNET  
20. 7B-3235 [12] BOLT  
21. 2S-0795 [2] GASKET  
22. 2H-8829 [1] PLUG  
  6F-7062 [1] WASHER  
23. 3S-1437 [1] BONNET  
24. 7F-3425 [3] BOLT  
25. 0L-1352 [2] BOLT  
26. 1A-5183 [2] BOLT  
27. 1S-9141 [1] SUPPORT  
28. [1] BOLT  
29. 4B-4278 [2] WASHER  
30. 0L-1351 [1] BOLT  
31. 2S-0401 [1] TUBE ASSEM.  
32. 0S-1595 [5] BOLT  
33. 1S-9844 [1] BRACKET ASSEM.  
34. 8M-2888 [1] GASKET  
35. 1S-9926 [1] CORE ASSEM.  
36. 1S-9843 [1] BRACKET ASSEM.  
37. 0S-1587 [1] BOLT  
38. 7M-0459 [1] HEAT INDICATOR  
  5B-1959 C [1] ADAPTER  
  2B-5721 [1] GASKET  
  C   INDICATES CHANGE FROM PREVIOUS
 

#UE0700420431
 

2S-0534: RETARDER OIL COOLER GROUP

2S534 RETARDER OIL COOLER GROUP--Type 3
Also part of 5D7690 Retarder Arrangement listed on Page 182
c105184 UE070042
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Parts for your 621 WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 0S-1594 [5] BOLT  
2. 3B-4506 [24] LOCKWASHER  
3. 5S-0585 [1] PIPE  
4. 6L-4364 [1] HOSE  
5. 5B-9603 [1] BOLT  
6. 7S-1721 [1] HOUSING ASSEM.  
7. 4J-6925 [2] STUD (2.60" long)  
8. 2M-6471 [2] PLUG  
9. 4M-1336 [1] FERRULE  
10. 3D-0490 [2] STUD (2" long)  
    (Parts of 7S1721 Housing Assem.)
11. 1A-2029 [8] BOLT  
12. 5S-3412 [1] PIPE  
  0S-1588 [1] BOLT  
13. 6F-7767 [2] GASKET  
14. 3S-7173 [1] ELBOW  
15. 6L-3943 [2] HOSE  
16. 5H-4450 [6] CLAMP  
17. 8S-9089 C [2] BOLT  
18. 3B-4508 C [32] LOCKWASHER  
19. 2S-0872 [1] BONNET  
20. 9S-1366 C [6] BOLT  
21. 2S-0795 [2] GASKET  
22. 2H-8829 [1] PLUG  
  6F-7062 [1] WASHER  
23. 3S-1437 [1] BONNET  
24. 7F-3425 [3] BOLT  
25. 0L-1352 [2] BOLT  
26. 1A-5183 [2] BOLT  
27. 1S-9141 [1] SUPPORT  
28. 8S-9191 [1] BOLT  
29. 4B-4278 [2] WASHER  
30. 0L-1351 [1] BOLT  
31. 2S-0401 [1] TUBE ASSEM.  
32. 0S-1595 [5] BOLT  
33. 1S-9844 [1] BRACKET ASSEM.  
34. 8M-2888 [1] GASKET  
35. 8S-0126 C [1] CORE ASSEM.  
36. 3H-9675 [1] PIN (Spring)  
37. 7S-8758 [2] SEAL  
    (Parts of 8S126 Core Assem.)
38. 1S-9843 [1] BRACKET ASSEM.  
39. 0S-1587 [1] BOLT  
40. 7M-0459 [1] HEAT INDICATOR  
  5B-1959 [1] ADAPTER  
  2B-5721 [1] GASKET  
41. 0S-1585 C [6] BOLT  
42. 7S-8767 C [2] GASKET  
43. 8S-3742 C [2] ADAPTER  
44. 7B-3235 [12] BOLT  
  C   INDICATES CHANGE FROM PREVIOUS
 

#UE0700420432
 

4D-3278: VALVE GP-AIR CONTROL

4D3278 CONTROL VALVE ASSEMBLY
Part of 5D7070 Retarder Control and Lines Group shown on Page 184
c79295 UE070042
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Parts for your 621 WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  5D-0832 [1] LEVER  
  4J-3963 [1] PIN  
  5D-0834 [1] SEAL  
    THE FOLLOWING REPAIR KIT IS AVAILABLE:
  5D-2174 [1] KIT  
    (Includes Springs, Grommet, Seal and Valve)
  3H-0107 [1] SEAL  
  5D-0833 [1] PLUG  
 

#UE0700420433
 

6D-0140: HYDRAULIC ARRANGEMENT

6D140 HYDRAULIC ARRANGEMENT
FOR USE WITH J621 ELEVATING SCRAPER. Only separate parts serviced
UE0700420433 UE070042
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Parts for your 621 WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  5D-9580 Y [1] HYDRAULIC PUMP AND LINES GROUP  
  5J-9700 Y [1] LINES GROUP  
  Y   SEPARATE ILLUSTRATION
 

#UE0700420434
 

6D-9630: PUMP AND LINES GROUP

6D9630 PUMP AND LINES GROUP--Field Installation
7J616 Pump parts are shown on Page 188B
c124187 UE070042
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Parts for your 621 WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 6D-9462 [1] TUBE ASSEM.  
2. 2J-9608 [2] FLANGE  
  4J-0527 [1] SEAL  
3. 0S-1587 [4] BOLT  
4. 3B-4508 [14] LOCKWASHER  
5. 6J-3650 [1] SEAL  
6. 5D-6176 [1] COVER  
7. 0S-1595 [4] BOLT  
8. 6D-9457 [1] HOSE ASSEM. (57" long overall)  
9. 2K-0190 [4] FLANGE  
  5F-1678 [2] SEAL  
10. 0S-1588 [12] BOLT  
  3B-4506 [12] LOCKWASHER  
11. 0S-1585 [4] BOLT  
12. 5H-8847 [2] FLANGE  
  6J-2680 [1] SEAL  
13. 6D-9546 [1] HOSE ASSEM. (38.88" long overall)  
14. 7J-0616 Y [1] PUMP ASSEM.  
    (See Separate Illustration)
15. 1H-3305 [2] FLANGE  
  5J-1356 [2] SEAL  
16. 6D-9469 [1] HOSE ASSEM. (29" long overall)  
17. 0V-0375 [2] BOLT  
18. 6D-9640 [1] ADAPTER ASSEM.  
19. 4J-0523 [1] SEAL  
  Y   SEPARATE ILLUSTRATION
 

#UE0700420435
 

7J-0616: HYDRAULIC PUMP ASSEMBLY

7J616 HYDRAULIC PUMP ASSEMBLY
Part of 6D9630 Pump & Lines Group shown on Page 188A
c124189 UE070042
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Parts for your 621 WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  2H-3931 H [1] SEAL  
  1S-0668 H [1] RING  
  1H-7339 H [1] SEAL  
  4F-7952 H [1] SEAL  
  4J-9222 H [1] RING  
  4J-3548 [1] WASHER  
  4J-1657 [1] COVER  
    THE FOLLOWING REPAIR KIT IS AVAILABLE:
  4J-9280 [1] KIT (Seal)  
    (Consists of Parts Marked H)
  O [10] VANE  
  O [10] INSERT  
  1D-4574 [4] BOLT  
  O [1] ROTOR  
  4J-2457 [1] COVER  
  O [1] PLATE  
  0T-0319 [4] BOLT  
  O [1] RING  
  O [2] PIN  
  O [2] SCREW  
  J [1] BEARING  
  O [1] PLATE  
  J [2] SCREW  
  J [10] VANE  
  J [10] INSERT  
  J [2] PIN  
  2H-4145 H [1] SEAL  
  4J-8748 [1] BODY  
  7J-0581 [1] CARTRIDGE ASSEM.  
    (14 Gallon Per Minute)
    (Consists of Parts Marked O)
  7J-0561 R [1] CARTRIDGE ASSEM.  
    (21 Gallon Per Minute)
    (Consists of Parts Marked J)
  7J-0615 [1] SHAFT  
  4J-0981 H [1] WIPER  
  4J-0980 H [1] SEAL  
  4M-7648 [1] WASHER  
  1L-8497 [1] RING  
  6B-1124 [1] BEARING  
  4M-7652 [1] RING  
  1S-0670 H [1] RING  
  1H-9696 H [1] SEAL  
  J [1] PLATE  
  1S-0669 H [1] RING  
  2H-3934 H [1] SEAL  
  J [1] ROTOR  
  J [1] RING  
  J [1] PLATE ASSEM.  
  R   REMFG PART MAY BE AVAILABLE
 

#UE0700420436
 

5D-9580: HYDRAULIC PUMP AND LINES GROUP

5D9580 HYDRAULIC PUMP AND LINES GROUP--Type 1
Part of 6D140 Hydraulic Arrangement listed on Page 188. 5J8333 & 5J8334 Pump
& 5J8787 Valve parts are shown on Pages 190, 191 & 193
c78944 UE070042
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Parts for your 621 WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 5D-2463 [1] LEVER ASSEM.  
  2K-2605 [1] BUSHING  
    (Part of 5D2463 Lever Assem.)
2. 5F-2201 [1] SPRING  
3. 5D-2589 [1] CLEVIS  
4. 1A-2457 [1] PIN  
5. 3B-4607 [1] COTTER PIN  
6. 2K-2882 [1] BOLT  
7. 1D-5117 [1] NUT  
8. 2B-2694 [4] BOLT  
9. 3B-4505 [4] LOCKWASHER  
10. 1H-3305 [2] FLANGE  
11. 5J-1356 [1] SEAL  
12. 6D-0150 [1] FLANGE  
13. 5J-1359 [1] SEAL  
14. 0S-1588 [4] BOLT  
15. 3B-4506 [4] LOCKWASHER  
16. 1A-1460 [4] BOLT  
17. 3B-4508 [14] LOCKWASHER  
18. 1H-5278 [2] FLANGE  
19. 5J-1583 [2] SEAL  
20. 6D-0116 [1] BLOCK  
  2B-7409 [1] PLUG  
21. 6D-0151 [1] HOSE ASSEM. (28.62" Long Overall)  
    (Ref. No. 40 to Ref. No. 37)
22. 0T-0320 [4] BOLT  
23. 3B-4507 [4] LOCKWASHER  
24. 3H-3667 [2] FLANGE  
25. 5J-1357 [2] SEAL  
26. 5F-0589 [2] CUP  
27. 5F-0585 [2] CONE  
28. 5D-5986 [1] GEAR  
29. 5D-6159 [1] CAGE ASSEM.  
  2D-8806 [2] STUD  
    (Part of 5D6159 Cage Assem.)
30. 5D-6086 [2] SHIM  
31. 6D-0118 [1] TUBE ASSEM. (23.83" Long Overall)  
    (Ref. No. 37 to Ref. No. 34)
32. 5J-1358 [1] SEAL  
33. 5D-7994 [1] JOINT ASSEM.  
34. 6D-0114 [1] TUBE ASSEM. (11" Long Overall)  
    (Ref. No. 31 to Ref. No. 36)
35. 0S-1585 [8] BOLT  
36. 5J-8333 Y [1] PUMP ASSEM.  
    (See Separate Illustration)
37. 5J-8334 Y [1] PUMP ASSEM.  
    (See Separate Illustration)
38. 1H-6227 [1] SEAL  
39. 1D-4719 [2] NUT  
40. 5J-8787 Y [1] VALVE GROUP  
    (See Separate Illustration)
41. 6D-0152 [1] HOSE ASSEM. (41.50" Long Overall)  
    (Ref. No. 36 to Ref. No. 40)
  Y   SEPARATE ILLUSTRATION
 

#UE0700420437
 

5D-9580: HYDRAULIC PUMP AND LINES GROUP

5D9580 HYDRAULIC PUMP AND LINES GROUP--Type 2
Part of 6D140 Hydraulic Arrangement listed on Page 188. 6J21 Valve, 5J8333 &
5J8334 Pump parts are shown on Pages 189B, 189C, 190 & 191
c120098 UE070042
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Parts for your 621 WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 5D-2463 [1] LEVER ASSEM.  
  2K-2605 [1] BUSHING  
    (Part of 5D2463 Lever Assem.)
2. 5F-2201 [1] SPRING  
3. 5D-2589 [1] CLEVIS  
4. 1A-2457 [1] PIN  
5. 3B-4607 [1] COTTER PIN  
6. 2K-2882 [1] BOLT  
7. 1D-5117 [1] NUT  
8. 2B-2694 [4] BOLT  
9. 3B-4505 [4] LOCKWASHER  
10. 1H-3305 [2] FLANGE  
11. 5J-1356 [1] SEAL  
12. 6D-0150 [1] FLANGE  
13. 5J-1359 [1] SEAL  
14. 0S-1588 [4] BOLT  
15. 3B-4506 [4] LOCKWASHER  
16. 1A-1460 [4] BOLT  
17. 3B-4508 [10] LOCKWASHER  
18. 1H-5278 [2] FLANGE  
19. 5J-1583 [2] SEAL  
20. 6D-0116 [1] BLOCK  
  2B-7409 [1] PLUG  
21. 6D-0151 [1] HOSE ASSEM. (28.62" Long Overall)  
    (Ref. No. 41 to Ref. No. 38)
22. 0T-0320 [4] BOLT  
23. 3B-4507 [4] LOCKWASHER  
24. 3H-3667 [2] FLANGE  
25. 5J-1357 [2] SEAL  
26. 6D-4022 C [1] GEAR ASSEM.  
27. 5H-4279 C [1] PLUG  
    (Part of 6D4022 Gear Assem.)
28. 5F-0589 [2] CUP  
29. 5F-0585 [2] CONE  
30. 5D-6159 [1] CAGE ASSEM.  
  2D-8806 [2] STUD  
    (Part of 5D6159 Cage Assem.)
31. 5D-6086 [2] SHIM  
32. 6D-0118 [1] TUBE ASSEM. (23.83" long overall)  
    (Ref. No. 38 to Ref. No. 35)
33. [1] SEAL  
34. 5D-7994 [1] JOINT ASSEM.  
35. 6D-0114 [1] TUBE ASSEM. (11" long overall)  
    (Ref. No. 32 to Ref. No. 37)
36. 0S-1585 [8] BOLT  
37. 5J-8333 Y [1] PUMP ASSEM.  
    (See Separate Illustration)
38. 5J-8334 Y [1] PUMP ASSEM.  
    (See Separate Illustration)
39. 1H-6227 [1] SEAL  
40. 1D-4719 [2] NUT  
41. 6J-0021 YC [1] VALVE GROUP  
    (See Separate Illustration)
42. 6D-0152 [1] HOSE ASSEM. (41.50" long overall)  
    (Ref. No. 37 to Ref. No. 41)
  C   INDICATES CHANGE FROM PREVIOUS
  Y   SEPARATE ILLUSTRATION
 

#UE0700420438
 

5D-9580: HYDRAULIC PUMP AND LINES GROUP

5D9580 HYDRAULIC PUMP AND LINES GROUP--Part 1 of 2--Type 3
Part of 6D140 Hydraulic Arrangement listed on Page 188
6D9880 Tank, 7J589 & 7J853 Pump parts are shown on Pages 189D, 189E & 189F
c123817 UE070042
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Parts for your 621 WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 6D-9880 YC [1] TANK GROUP (Hydraulic)  
    (See Separate Illustration)
2. 6D-0116 [1] BLOCK  
  2B-7409 [1] PLUG  
3. 8M-4990 C [3] SEAL  
4. 4B-3388 C [4] BOLT (1.125" long)  
  2B-2694 [4] BOLT (2" long)  
  3B-4505 C [8] LOCKWASHER  
5. 1A-1460 [4] BOLT  
6. 3B-4508 C [12] LOCKWASHER  
7. 6D-0150 [1] FLANGE  
  6J-3800 C [1] SEAL  
8. 1H-5278 C [4] FLANGE  
9. 2J-9608 C [2] FLANGE  
10. 0S-1585 [8] BOLT  
11. 6D-9834 C [1] HOSE ASSEM. (57" long overall)  
12. 7J-0853 YC [1] PUMP ASSEM. (Hydraulic)  
    (See Separate Illustration)
13. 3H-4330 C [2] FLANGE  
14. 7J-0589 YC [1] PUMP ASSEM. (Hydraulic)  
    (See Separate Illustration)
15. 1H-6227 [1] SEAL  
  C   INDICATES CHANGE FROM PREVIOUS
  Y   SEPARATE ILLUSTRATION
 

#UE0700420439
 

5D-9580: HYDRAULIC PUMP AND LINES GROUP

5D9580 HYDRAULIC PUMP AND LINES GROUP--Part 2 of 2--Type 3
Part of 6D140 Hydraulic Arrangement listed on Page 188
6J21 Valve parts are shown on Pages 189B & 189C
c123818 UE070042
  For full view, you need register

Parts for your 621 WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 5D-2463 [1] LEVER ASSEM.  
  2K-2605 [1] BUSHING  
    (Part of 5D2463 Lever Assem.)
2. 5F-2201 [1] SPRING  
3. 5D-2589 [1] CLEVIS  
4. 1A-2457 [1] PIN  
  3B-4607 [1] COTTER PIN  
5. 2K-2882 [1] BOLT  
  1D-5117 [1] NUT  
6. 1H-3305 [2] FLANGE  
  6J-3600 C [1] SEAL  
7. 0S-1588 [4] BOLT  
  3B-4506 [4] LOCKWASHER  
  7S-0366 C [1] HOSE ASSEM. (29" long overall)  
8. 3S-9411 [1] STEM ASSEM. (90 degrees)  
9. 3S-7252 [2] SLEEVE  
10. [1] HOSE  
  5S-8113 [1] STEM ASSEM. (22.5 degrees)  
11. 5F-0589 [2] CUP  
12. 5F-0585 [2] CONE  
13. 6D-7834 C [1] GEAR (Drive- 65 Teeth)  
14. 5D-6159 [1] CAGE ASSEM.  
15. 2D-8806 [2] STUD  
    (Part of 5D6159 Cage Assem.)
16. 5D-6086 [2] SHIM  
17. 1D-4719 [2] NUT  
  3B-4508 [2] LOCKWASHER  
18. 3H-3667 [2] FLANGE  
19. 6J-3625 C [2] SEAL (1.297" inside diameter)  
20. 0T-0320 [4] BOLT  
  3B-4507 [4] LOCKWASHER  
21. 6J-0021 Y [1] VALVE GROUP  
    (See Separate Illustration)
  6D-5358 C [1] HOSE ASSEM. (41.50" long overall)  
22. [1] HOSE  
  3S-9404 [1] STEM ASSEM. (90 degrees)  
23. 3S-9351 [2] SLEEVE  
24. 7S-8437 [1] STEM ASSEM. (67.5 degrees)  
25. 8M-5661 C [1] SEAL (1.859" inside diameter)  
  C   INDICATES CHANGE FROM PREVIOUS
  Y   SEPARATE ILLUSTRATION
 

Information:

Disassembly and Assembly
Transmission Oil Cooler
621 & 623 TRACTOR-SCRAPER ENGINE

Caterpillar Parts SIS Catalog 621 :

Truck sale:

699,500 
Caterpillar 621K WT, water trucks, Transport
- water trucks
HOLT OF CALIFORNIA
379,500 
Caterpillar 621K, Road Scraper, Construction
- Road Scraper
ALTORFER INC.
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