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PLANETARY TRANSMISSION--Part 3 of 4 Serial No. 23H173 to 23H1606 inclusive & Test No. 321 to 1757 inclusive Part of 3S148, 5S7777 & 5S7778 Arrangements shown on Pages 90, 90A & 180B-1 621


POWER TRAIN
TRANSMISSION GP

WHEEL TRACTOR 621 WHEEL TRACTOR 23H
 621 TRACTOR 23H00001-02222 (MACHINE) UE070042 621 23H   (1966)

POWER TRAIN

TRANSMISSION GP
PLANETARY TRANSMISSION
PLANETARY TRANSMISSION
PLANETARY TRANSMISSION
PLANETARY TRANSMISSION
PLANETARY TRANSMISSION
PLANETARY TRANSMISSION
PLANETARY TRANSMISSION
PLANETARY TRANSMISSION
PLANTERY TRANSMISSION
PLANTERY TRANSMISSION
PLANTERY TRANSMISSION
PLANTERY TRANSMISSION
 

#UE0700420170
 

PLANETARY TRANSMISSION

PLANETARY TRANSMISSION--Part 3 of 4
Serial No. 23H173 to 23H1606 inclusive & Test No. 321 to 1757 inclusive
Part of 3S148, 5S7777 & 5S7778 Arrangements shown on Pages 90, 90A & 180B-1
c106240 UE070042
None PLANETARY TRANSMISSION Parts scheme
  For full view, you need register

Parts for your 621 WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 3S-0114 [1] RING  
2. 4S-8694 [3] DISC ASSEM.  
3. 8M-1112 [1] SEAL  
4. 4S-5811 [1] PLUG  
5. 4S-5814 [1] HOUSING ASSEM.  
  7M-8480 [2] DOWEL  
    (Part of 4S5814 Housing Assem.)
6. 2S-1387 [1] RING  
7. 2S-4900 [6] SHAFT ASSEM.  
  3S-0036 [6] PLUG  
    (1 in each 2S4900 Shaft Assem.)
8. 1S-9905 [3] GEAR (24 Teeth)  
9. 8S-9005 [2] PISTON  
10. 3S-1278 [3] RING  
11. 0T-0065 [2] BOLT  
12. 8M-8651 [6] PLATE  
13. 5M-6122 [9] DISC ASSEM.  
14. 1S-9756 [1] GEAR (96 Teeth)  
15. 4M-3915 [16] BEARING  
16. 2S-4993 [1] SLINGER  
17. 1S-9936 [8] GEAR (23 Teeth)  
18. 3S-1281 [1] RING  
19. 3S-0110 [1] HOUSING  
20. 8S-9004 [1] PISTON  
21. 4M-1677 [5] PIN  
22. 1M-9691 [10] SPRING  
23. 1S-9496 [2] RING  
24. 3S-0111 [1] HOUSING ASSEM.  
  7M-8480 [4] DOWEL  
    (Part of 3S111 Housing Assem.)
25. 4M-1641 [5] PIN  
26. 3S-0113 [1] HOUSING  
27. 0S-1585 [18] BOLT  
  2M-0849 [18] WASHER  
28. 5D-1071 [1] SEAL  
29. 1S-9863 [1] GEAR (96 Teeth)  
30. 3S-0123 [1] CARRIER  
31. 3S-0091 [1] PISTON  
32. 0L-1466 [5] SPRING  
33. 7S-4502 [1] MANIFOLD ASSEM.  
34. 8B-1312 [2] DOWEL  
    (Parts of 7S4502 Manifold Assem.)
35. 4M-8871 [5] PIN  
36. 1K-8953 [2] PLATE  
37. 0T-0573 [7] BOLT  
  5M-2894 [7] WASHER  
38. 3S-1282 [1] RING  
39. 8S-3371 [1] RING  
40. 3S-9975 [1] PISTON  
 

#UE0700420171
 

PLANETARY TRANSMISSION

PLANETARY TRANSMISSION--Part 4 of 4
Serial No. 23H173 to 23H1606 inclusive & Test No. 321 to 1757 inclusive
Part of 3S148, 5S7777 & 5S7778 Arrangements shown on Pages 90, 90A & 180B-1
c106241 UE070042
None PLANETARY TRANSMISSION Parts scheme
  For full view, you need register

Parts for your 621 WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4S-8724 [2] DISC ASSEM.  
2. 3S-0044 R [1] PLATE  
3. 1M-8649 [1] RING  
4. 6H-7201 [1] RING  
5. 1S-5623 [3] PLATE  
6. 0T-0102 [14] BOLT  
7. 4F-2218 [3] LOCK  
8. 1S-5621 [1] GEAR (96 Teeth)  
9. 3S-2709 [4] SHAFT  
10. 1S-1880 [16] BOLT  
  2M-0849 [16] WASHER  
11. 7M-5783 [16] WASHER  
12. 3S-1394 [1] GEAR (35 Teeth)  
13. 3S-1395 [1] GEAR (29 Teeth)  
14. 7S-4610 [1] CARRIER ASSEM.  
15. 5S-7779 [1] RING  
16. 8H-3981 [1] RING  
17. 5S-4426 [1] ADAPTER  
18. 5S-4442 [1] BEARING  
19. 2K-5967 [1] RING  
20. 3S-2710 [4] SHAFT  
21. 2S-0669 [8] BEARING  
22. 3S-2660 [4] SPACER  
23. 3S-2661 [4] GEAR (17 Teeth)  
24. 7M-5734 [8] WASHER  
25. 5M-6212 [4] TUBE  
26. 6F-0155 [2] RING  
27. 3H-9500 [4] LOCK  
28. 3S-2619 [1] RING  
29. 3S-0147 [1] PLATE ASSEM.  
  7M-8479 [2] DOWEL  
    (Part of 3S147 Plate Assem.)
30. 0L-2070 [8] BOLT  
  5M-2894 [8] WASHER  
31. 3S-0108 [1] RING ASSEM.  
32. 4S-5805 [1] SEAL  
33. 8S-9006 [1] PISTON  
34. 4M-9592 [5] SPRING  
35. 2S-0028 [2] RING  
36. 0S-1594 [12] BOLT  
37. 3S-2666 [6] LOCK  
38. 9M-2004 [2] BEARING  
39. 1M-8652 [2] RING  
  8S-9184 [1] GEAR ASSEM. (36 and 65 Teeth)  
40. 8S-9181 [1] GEAR  
41. 8S-9182 [1] RING  
42. 8S-9183 [1] HUB  
43. 7S-4496 [1] CAGE ASSEM.  
44. 3S-1292 [1] BEARING  
45. 9M-2001 [2] DOWEL  
46. 3S-2656 [1] CARRIER  
    (Parts of 7S4496 Cage Assem.)
47. 3S-0120 [1] HOUSING ASSEM.  
  7M-8480 [2] DOWEL  
    (Part of 3S120 Housing Assem.)
48. 3S-1283 [1] RING  
49. 3S-1396 [1] GEAR (65 and 55 Teeth)  
50. 3S-1282 [1] RING  
51. 5S-7780 [1] SHAFT ASSEM.  
52. 3D-8823 [1] BEARING  
53. 5S-4441 [1] DOWEL  
    (Parts of 5S7780 Shaft Assem.)
  R   REMFG PART MAY BE AVAILABLE
 

#UE0700420172
 

PLANTERY TRANSMISSION

PLANTERY TRANSMISSION--Part 1 of 4
Serial No. 23H1607 to 2082, 2084 to 2089, 2091 to 2093, 2097, 2100, 2101, 2103, 2105,
2106, 2108, 2116, 2120, 2125, 2139, 2160 & 23H2171 inclusive & Test No. 1758 to 2236
inclusive. Part of 5S7777 & 5S7778 Arrangements shown on Pages 90B & 180B-1
c104996 UE070042
None PLANTERY TRANSMISSION Parts scheme
  For full view, you need register

Parts for your 621 WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 8M-4437 [4] SEAL  
2. 5M-7908 [4] PLUG ASSEM.  
  3J-1907 [4] SEAL  
    (1 in each 5M7908 Plug Assem.)
3. 5S-7797 [1] CASE ASSEM.  
4. 8H-8175 [2] BEARING  
5. 3B-0645 [1] PLUG  
6. 3F-0957 [1] DOWEL  
7. 0S-0509 [1] BOLT  
8. 2S-6160 [1] WASHER  
9. 9F-2978 [4] NUT (Weld)  
10. 3D-0490 [4] STUD  
11. 5M-1719 [3] STUD  
12. 9M-2069 [1] PIN  
    (Parts of 5S7797 Case Assem.)
13. 1S-9799 [1] SEAL  
14. 0S-1588 [12] BOLT  
  5M-2894 [12] WASHER  
15. 8B-6599 [1] PLUG  
  0L-1124 [1] GASKET  
16. 3S-1345 [1] HOUSING ASSEM.  
17. 7M-8480 [2] DOWEL  
    (Part of 3S1345 Housing Assem.)
18. 8M-4390 [1] SEAL  
19. 8M-5661 [2] SEAL  
20. 8M-5010 [1] SEAL  
21. 8M-4445 [1] SEAL  
22. 8M-4443 [2] SEAL  
23. 1D-4719 [4] NUT  
  3B-4508 [4] LOCKWASHER  
24. 1S-9799 [2] SEAL  
25. 8M-5248 [1] SEAL  
26. 8S-3553 [1] PLATE (Name)  
  7B-3028 [2] SCREW  
 

#UE0700420173
 

PLANTERY TRANSMISSION

PLANETARY TRANSMISSION--Part 2 of 4
Serial No. 23H1607 to 2082, 2084 to 2089, 2091 to 2093, 2097, 2100, 2101, 2103, 2105, 2106, 2108, 2116, 2120, 2125, 2139, 2160 &
23H2171 inclusive & Test No. 1758 to 2236 inclusive. Part of 5S7777 & 5S7778 Arrangements shown on Pages 90B & 180B-1
c106239 UE070042
None PLANTERY TRANSMISSION Parts scheme
  For full view, you need register

Parts for your 621 WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 8S-9004 [1] PISTON  
2. 5M-6122 [2] DISC ASSEM.  
3. 8M-8651 [1] PLATE  
4. 1A-1460 [20] BOLT  
  2M-0849 [20] WASHER  
5. 8S-9019 [1] PISTON  
6. 3S-0092 [1] RING ASSEM.  
7. 3S-0040 R [1] PLATE  
8. 8S-9007 [1] PISTON  
9. 5M-5018 [6] BEARING  
10. 7M-5731 [18] WASHER  
11. 3S-9965 [3] SHAFT ASSEM.  
12. 3S-0036 [3] PLUG  
    (1 in each 3S9965 Shaft Assem.)
13. 5M-2054 [3] BEARING  
14. 3S-9960 [3] GEAR (33 Teeth)  
15. 4S-5815 [1] GEAR ASSEM. (96 Teeth)  
16. 6B-1369 [5] RIVET  
17. 5M-6178 [2] WASHER  
    (Parts of 4S5815 Gear Assem.)
18. 3S-0109 [1] PLATE  
19. 1T-0414 [4] BOLT  
20. 4S-5812 [1] CARRIER ASSEM.  
  7M-8480 [2] DOWEL  
    (Part of 4S5812 Carrier Assem.)
21. 5S-0978 [1] CARRIER ASSEM.  
  2A-3746 [2] PLUG  
    (Part of 5S978 Carrier Assem.)
22. 1S-7347 [1] RING  
23. 4S-8695 [2] DISC ASSEM.  
24. 9M-6193 [40] SPRING ASSEM.  
25. 3S-1284 [1] RING  
26. 4S-5804 [1] SEAL  
27. 8M-6541 [1] SEAL  
28. 3S-0034 [1] PLATE ASSEM.  
29. 4B-9782 [1] BALL  
    (Part of 3S34 Plate Assem.)
30. 4M-9592 [30] SPRING  
31. 2S-0044 [15] PIN  
32. 3S-1278 [1] RING  
33. 8M-5248 [3] SEAL  
34. 0S-1594 [6] BOLT  
  1M-5157 [3] LOCK  
35. 1D-4719 [9] NUT  
  3S-2658 [1] MANIFOLD ASSEM.  
36. 2D-8426 [9] STUD  
37. 3S-2657 [1] MANIFOLD  
38. 3S-2656 [1] CARRIER  
39. 1S-9958 [1] BEARING  
40. 9M-2001 [1] DOWEL  
41. 1M-8652 [1] RING  
42. 3S-2655 [1] GEAR (50 Teeth)  
43. 9M-2004 [1] BEARING  
44. 2S-0028 [2] RING  
45. 1M-4169 [1] RING  
46. 3S-9959 [1] CAGE  
47. 3S-2708 [17] PIN  
48. 1S-8345 [3] GEAR (26 Teeth)  
49. 3S-0037 [1] GEAR (96 Teeth)  
50. 0S-0509 [4] BOLT  
  4B-4278 [4] WASHER  
51. 3H-3451 [2] LOCK  
52. 5S-3622 [1] BAFFLE ASSEM.  
53. 3S-1281 [1] RING  
  R   REMFG PART MAY BE AVAILABLE
 

#UE0700420174
 

PLANTERY TRANSMISSION

PLANETARY TRANSMISSION--Part 3 of 4
Serial No. 23H1607 to 2082, 2084 to 2089, 2091 to 2093, 2097, 2100, 2101,
2103, 2105, 2106, 2108, 2116, 2110, 2125, 2139, 2160 & 23H2171 inclusive &
Test No. 1758 to 2236 inclusive. Part of 5S7777 & 5S7778 Arrangements
shown on Pages 90B & 180B-1
c106240 UE070042
None PLANTERY TRANSMISSION Parts scheme
  For full view, you need register

Parts for your 621 WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 3S-0114 [1] RING  
2. 4S-8694 [3] DISC ASSEM.  
3. 8M-1112 [1] SEAL  
4. 4S-5811 [1] PLUG  
5. 4S-5814 [1] HOUSING ASSEM.  
  7M-8480 [2] DOWEL  
    (Part of 4S5814 Housing Assem.)
6. 2S-1387 [1] RING  
7. 2S-4900 [6] SHAFT ASSEM.  
  3S-0036 [6] PLUG  
    (1 in each 2S4900 Shaft Assem.)
8. 1S-9905 [3] GEAR (24 Teeth)  
9. 8S-9005 [2] PISTON  
10. 3S-1278 [3] RING  
11. 0T-0065 [2] BOLT  
12. 8M-8651 [6] PLATE  
13. 5M-6122 [9] DISC ASSEM.  
14. 1S-9756 [1] GEAR (96 Teeth)  
15. 4M-3915 [16] BEARING  
16. 2S-4993 [1] SLINGER  
17. 1S-9936 [8] GEAR (23 Teeth)  
18. 3S-1281 [1] RING  
19. 3S-0110 [1] HOUSING  
20. 8S-9004 [1] PISTON  
21. 4M-1677 [5] PIN  
22. 1M-9691 [10] SPRING  
23. 1S-9496 [2] RING  
24. 3S-0111 [1] HOUSING ASSEM.  
  7M-8480 [4] DOWEL  
    (Part of 3S111 Housing Assem.)
25. 4M-1641 [5] PIN  
26. 3S-0113 [1] HOUSING  
27. 0S-1585 [18] BOLT  
  2M-0849 [18] WASHER  
28. 5D-1071 [1] SEAL  
29. 1S-9863 [1] GEAR (96 Teeth)  
30. 3S-0123 [1] CARRIER  
31. 3S-0091 [1] PISTON  
32. 0L-1466 [5] SPRING  
33. 7S-4502 [1] MANIFOLD ASSEM.  
34. 8B-1312 [2] DOWEL  
    (Parts of 7S4502 Manifold Assem.)
35. 4M-8871 [5] PIN  
36. 1K-8953 [2] PLATE  
37. 0T-0573 [7] BOLT  
  5M-2894 [7] WASHER  
38. 3S-1282 [1] RING  
39. 8S-3371 [1] RING  
40. 3S-9975 [1] PISTON  
 

#UE0700420175
 

PLANTERY TRANSMISSION

PLANETARY TRANSMISSION--Part 4 of 4
Serial No. 23H1607 to 2082, 2084 to 2089, 2091 to 2093, 2097, 2100, 2101, 2103,
2105, 2106, 2108, 2116, 2120, 2125, 2139, 2160 & 23H2171 inclusive & Test No.
1758 to 2236 inclusive. Part of 5S7777 & 5S7778 Arrangements shown on
Pages 90B & 180B-1
c106241 UE070042
None PLANTERY TRANSMISSION Parts scheme
  For full view, you need register

Parts for your 621 WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4S-8724 [2] DISC ASSEM.  
2. 3S-0044 R [1] PLATE  
3. 1M-8649 [1] RING  
4. 6H-7201 [1] RING  
5. 1S-5623 [3] PLATE  
6. 0T-0102 [14] BOLT  
7. 4F-2218 [3] LOCK  
8. 1S-5621 [1] GEAR (96 Teeth)  
9. 3S-2709 [4] SHAFT  
10. 1S-1880 [16] BOLT  
  2M-0849 [16] WASHER  
11. 7M-5783 [16] WASHER  
12. 3S-1394 [1] GEAR (35 Teeth)  
13. 3S-1395 [1] GEAR (29 Teeth)  
14. 7S-4610 [1] CARRIER ASSEM.  
15. 5S-7779 [1] RING  
16. 8H-3981 [1] RING  
17. 5S-4426 [1] ADAPTER  
18. 5S-4442 [1] BEARING  
19. 2K-5967 [1] RING  
20. 3S-2710 [4] SHAFT  
21. 2S-0669 [8] BEARING  
22. 3S-2660 [4] SPACER  
23. 3S-2661 [4] GEAR (17 Teeth)  
24. 7M-5734 [8] WASHER  
25. 5M-6212 [4] TUBE  
26. 6F-0155 [2] RING  
27. 3H-9500 [4] LOCK  
28. 3S-2619 [1] RING  
29. 3S-0147 [1] PLATE ASSEM.  
  7M-8479 [2] DOWEL  
    (Part of 3S147 Plate Assem.)
30. 0L-2070 [8] BOLT  
  5M-2894 [8] WASHER  
31. 3S-0108 [1] RING ASSEM.  
32. 4S-5805 [1] SEAL  
33. 8S-9006 [1] PISTON  
34. 4M-9592 [5] SPRING  
35. 2S-0028 [2] RING  
36. 0S-1594 [12] BOLT  
37. 3S-2666 [6] LOCK  
38. 9M-2004 [2] BEARING  
39. 1M-8652 [2] RING  
  8S-9184 [1] GEAR ASSEM. (36 and 65 Teeth)  
40. 8S-9181 [1] GEAR  
41. 8S-9182 [1] RING  
42. 8S-9183 [1] HUB  
43. 7S-4496 [1] CAGE ASSEM.  
44. 3S-1292 [1] BEARING  
45. 9M-2001 [2] DOWEL  
46. 3S-2656 [1] CARRIER  
    (Parts of 7S4496 Cage Assem.)
47. 3S-0120 [1] HOUSING ASSEM.  
  7M-8480 [2] DOWEL  
    (Part of 3S120 Housing Assem.)
48. 3S-1283 [1] RING  
49. 3S-1396 [1] GEAR (65 and 55 Teeth)  
50. 3S-1282 [1] RING  
51. 5S-7780 [1] SHAFT ASSEM.  
52. 3D-8823 [1] BEARING  
53. 5S-4441 [1] DOWEL  
    (Parts of 5S7780 Shaft Assem.)
  R   REMFG PART MAY BE AVAILABLE
 

#UE0700420176
 

PLANETARY TRANSMISSION

PLANETARY TRANSMISSION--Part 1 of 4
Serial No. 23H2083, 2090, 2094 to 2096, 2098, 2099, 2102, 2104, 2107, 2109 to
2115, 2117 to 2119, 2121 to 2124, 2126 to 2138, 2140 to 2159, 2161 to 2170 &
23H2172-Up & Test No. 2237-Up. Part of 5S7777 & 5S7778
Transmission Arrangements shown on Pages 90B & 180B-1
c104997 UE070042
None PLANETARY TRANSMISSION Parts scheme
  For full view, you need register

Parts for your 621 WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 8M-4437 [4] SEAL  
2. 5M-7908 [4] PLUG ASSEM.  
  3J-1907 [4] SEAL  
    (1 in each 5M7908 Plug Assem.)
3. 8S-3551 C [1] CASE ASSEM.  
4. 8H-8175 [2] BEARING  
5. 3B-0645 [1] PLUG  
6. 3F-0957 [1] DOWEL  
7. 0S-0509 [1] BOLT  
8. 2S-6160 [1] WASHER  
9. 9F-2978 [4] NUT (Weld)  
10. 3D-0490 [4] STUD  
11. 5M-1719 [3] STUD  
12. 9M-2069 [1] PIN  
    (Parts of 8S3551 Case Assem.)
13. 1S-9799 [1] SEAL  
14. 0S-1588 [12] BOLT  
  5M-2894 [12] WASHER  
15. 8B-6599 [1] PLUG  
  0L-1124 [1] GASKET  
16. 3S-1345 [1] HOUSING ASSEM.  
17. 7M-8480 [2] DOWEL  
    (Part of 3S1345 Housing Assem.)
18. 8M-4390 [1] SEAL  
19. 8M-5661 [2] SEAL  
20. 8M-5010 [1] SEAL  
21. 8M-4445 [1] SEAL  
22. 8M-4443 [2] SEAL  
23. 1D-4719 [4] NUT  
  3B-4508 [4] LOCKWASHER  
24. 1S-9799 [2] SEAL  
25. 8M-5248 [1] SEAL  
26. 8S-3553 [1] PLATE (Name)  
  7B-3028 [2] SCREW  
  C   INDICATES CHANGE FROM PREVIOUS
 

#UE0700420177
 

PLANETARY TRANSMISSION

PLANETARY TRANSMISSION--Part 2 of 4
Serial No. 23H2083, 2090, 2094 to 2096, 2098, 2099, 2102, 2104, 2107, 2109 to 2115, 2117 to 2119, 2121 to 2124, 2126 to 2138, 2140
to 2159, 2161 to 2170 & 23H2172-Up & Test No. 2237-Up. Part of 5S7777 & 5S7778 Transmission Arrangements shown on Pages 90B & 180B-1
c106239 UE070042
None PLANETARY TRANSMISSION Parts scheme
  For full view, you need register

Parts for your 621 WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 8S-9004 [1] PISTON  
2. 5M-6122 [2] DISC ASSEM.  
3. 8M-8651 [1] PLATE  
4. 1A-1460 [20] BOLT  
  2M-0849 [20] WASHER  
5. 8S-9019 [1] PISTON  
6. 3S-0092 [1] RING ASSEM.  
7. 3S-0040 R [1] PLATE  
8. 8S-9007 [1] PISTON  
9. 5M-5018 [6] BEARING  
10. 7M-5731 [18] WASHER  
11. 3S-9965 [3] SHAFT ASSEM.  
12. 3S-0036 [3] PLUG  
    (1 in each 3S9965 Shaft Assem.)
13. 5M-2054 [3] BEARING  
14. 3S-9960 [3] GEAR (33 Teeth)  
15. 4S-5815 [1] GEAR ASSEM. (96 Teeth)  
16. 6B-1369 [5] RIVET  
17. 5M-6178 [2] WASHER  
    (Parts of 4S5815 Gear Assem.)
18. 3S-0109 [1] PLATE  
19. 1T-0414 [4] BOLT  
20. 4S-5812 [1] CARRIER ASSEM.  
  7M-8480 [2] DOWEL  
    (Part of 4S5812 Carrier Assem.)
21. 5S-0978 [1] CARRIER ASSEM.  
  2A-3746 [2] PLUG  
    (Part of 5S978 Carrier Assem.)
22. 1S-7347 [1] RING  
23. 4S-8695 [2] DISC ASSEM.  
24. 9M-6193 [40] SPRING ASSEM.  
25. 3S-1284 [1] RING  
26. 4S-5804 [1] SEAL  
27. 8M-6541 [1] SEAL  
28. 3S-0034 [1] PLATE ASSEM.  
29. 4B-9782 [1] BALL  
    (Part of 3S34 Plate Assem.)
30. 4M-9592 [30] SPRING  
31. 2S-0044 [15] PIN  
32. 3S-1278 [1] RING  
33. 8M-5248 [3] SEAL  
34. 0S-1594 [6] BOLT  
  1M-5157 [3] LOCK  
35. 1D-4719 [9] NUT  
  3S-2658 [1] MANIFOLD ASSEM.  
36. 2D-8426 [9] STUD  
37. 3S-2657 [1] MANIFOLD  
38. 3S-2656 [1] CARRIER  
39. 1S-9958 [1] BEARING  
40. 9M-2001 [1] DOWEL  
41. 1M-8652 [1] RING  
42. 3S-2655 [1] GEAR (50 Teeth)  
43. 9M-2004 [1] BEARING  
44. 2S-0028 [2] RING  
45. 1M-4169 [1] RING  
46. 3S-9959 [1] CAGE  
47. 3S-2708 [17] PIN  
48. 1S-8345 [3] GEAR (26 Teeth)  
49. 3S-0037 [1] GEAR (96 Teeth)  
50. 0S-0509 [4] BOLT  
  4B-4278 [4] WASHER  
51. 3H-3451 [2] LOCK  
52. 5S-3622 [1] BAFFLE ASSEM.  
53. 3S-1281 [1] RING  
  R   REMFG PART MAY BE AVAILABLE
 

#UE0700420178
 

PLANETARY TRANSMISSION

PLANETARY TRANSMISSION--Part 3 of 4
Serial No. 23H2083, 2090, 2094 to 2096, 2098, 2099, 2102, 2104, 2107,
2109 to 2115, 2117 to 2119, 2121 to 2124, 2126 to 2138, 2140 to 2159,
2161 to 2170 & 23H2172-Up & Test No. 2237-Up
Part of 5S7777 & 5S7778 Transmission Arrangements shown on Pages 90B & 180B-1
c106240 UE070042
None PLANETARY TRANSMISSION Parts scheme
  For full view, you need register

Parts for your 621 WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 3S-0114 [1] RING  
2. 4S-8694 [3] DISC ASSEM.  
3. 8M-1112 [1] SEAL  
4. 4S-5811 [1] PLUG  
5. 4S-5814 [1] HOUSING ASSEM.  
  7M-8480 [2] DOWEL  
    (Part of 4S5814 Housing Assem.)
6. 2S-1387 [1] RING  
7. 2S-4900 [6] SHAFT ASSEM.  
  3S-0036 [6] PLUG  
    (1 in each 2S4900 Shaft Assem.)
8. 1S-9905 [3] GEAR (24 Teeth)  
9. 8S-9005 [2] PISTON  
10. 3S-1278 [3] RING  
11. 0T-0065 [2] BOLT  
12. 8M-8651 [6] PLATE  
13. 5M-6122 [9] DISC ASSEM.  
14. 1S-9756 [1] GEAR (96 Teeth)  
15. 4M-3915 [16] BEARING  
16. 2S-4993 [1] SLINGER  
17. 1S-9936 [8] GEAR (23 Teeth)  
18. 3S-1281 [1] RING  
19. 3S-0110 [1] HOUSING  
20. 8S-9004 [1] PISTON  
21. 4M-1677 [5] PIN  
22. 1M-9691 [10] SPRING  
23. 1S-9496 [2] RING  
24. 3S-0111 [1] HOUSING ASSEM.  
  7M-8480 [4] DOWEL  
    (Part of 3S111 Housing Assem.)
25. 4M-1641 [5] PIN  
26. 3S-0113 [1] HOUSING  
27. 0S-1585 [18] BOLT  
  2M-0849 [18] WASHER  
28. 5D-1071 [1] SEAL  
29. 1S-9863 [1] GEAR (96 Teeth)  
30. 3S-0123 [1] CARRIER  
31. 3S-0091 [1] PISTON  
32. 0L-1466 [5] SPRING  
33. 7S-4502 [1] MANIFOLD ASSEM.  
34. 8B-1312 [2] DOWEL  
    (Parts of 7S4502 Manifold Assem.)
35. 4M-8871 [5] PIN  
36. 1K-8953 [2] PLATE  
37. 0T-0573 [7] BOLT  
  5M-2894 [7] WASHER  
38. 3S-1282 [1] RING  
39. 8S-3371 [1] RING  
40. 3S-9975 [1] PISTON  
 

#UE0700420179
 

PLANETARY TRANSMISSION

PLANETARY TRANSMISSION--Part 4 of 4
Serial No. 23H2083, 2090, 2094 to 2096, 2098, 2099, 2102, 2104, 2107,
2109 to 2115, 2117 to 2119, 2121 to 2124, 2126 to 2138, 2140 to 2159,
2161 to 2170 & 23H2172-Up & Test No. 2237-Up
Part of 5S7777 & 5S7778 Transmission Arrangements shown on Pages 90B & 180B-1
c106241 UE070042
None PLANETARY TRANSMISSION Parts scheme
  For full view, you need register

Parts for your 621 WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4S-8724 [2] DISC ASSEM.  
2. 3S-0044 R [1] PLATE  
3. 1M-8649 [1] RING  
4. 6H-7201 [1] RING  
5. 1S-5623 [3] PLATE  
6. 0T-0102 [14] BOLT  
7. 4F-2218 [3] LOCK  
8. 1S-5621 [1] GEAR (96 Teeth)  
9. 3S-2709 [4] SHAFT  
10. 1S-1880 [16] BOLT  
  2M-0849 [16] WASHER  
11. 7M-5783 [16] WASHER  
12. 3S-1394 [1] GEAR (35 Teeth)  
13. 3S-1395 [1] GEAR (29 Teeth)  
14. 7S-4610 [1] CARRIER ASSEM.  
15. 5S-7779 [1] RING  
16. 8H-3981 [1] RING  
17. 5S-4426 [1] ADAPTER  
18. 5S-4442 [1] BEARING  
19. 2K-5967 [1] RING  
20. 3S-2710 [4] SHAFT  
21. 2S-0669 [8] BEARING  
22. 3S-2660 [4] SPACER  
23. 3S-2661 [4] GEAR (17 Teeth)  
24. 7M-5734 [8] WASHER  
25. 5M-6212 [4] TUBE  
26. 6F-0155 [2] RING  
27. 3H-9500 [4] LOCK  
28. 3S-2619 [1] RING  
29. 3S-0147 [1] PLATE ASSEM.  
  7M-8479 [2] DOWEL  
    (Part of 3S147 Plate Assem.)
30. 0L-2070 [8] BOLT  
  5M-2894 [8] WASHER  
31. 3S-0108 [1] RING ASSEM.  
32. 4S-5805 [1] SEAL  
33. 8S-9006 [1] PISTON  
34. 4M-9592 [5] SPRING  
35. 2S-0028 [2] RING  
36. 0S-1594 [12] BOLT  
37. 3S-2666 [6] LOCK  
38. 9M-2004 [2] BEARING  
39. 1M-8652 [2] RING  
  8S-9184 [1] GEAR ASSEM. (36 and 65 Teeth)  
40. 8S-9181 [1] GEAR  
41. 8S-9182 [1] RING  
42. 8S-9183 [1] HUB  
43. 7S-4496 [1] CAGE ASSEM.  
44. 3S-1292 [1] BEARING  
45. 9M-2001 [2] DOWEL  
46. 3S-2656 [1] CARRIER  
    (Parts of 7S4496 Cage Assem.)
47. 3S-0120 [1] HOUSING ASSEM.  
  7M-8480 [2] DOWEL  
    (Part of 3S120 Housing Assem.)
48. 3S-1283 [1] RING  
49. 3S-1396 [1] GEAR (65 and 55 Teeth)  
50. 3S-1282 [1] RING  
51. 5S-7780 [1] SHAFT ASSEM.  
52. 3D-8823 [1] BEARING  
53. 5S-4441 [1] DOWEL  
    (Parts of 5S7780 Shaft Assem.)
  R   REMFG PART MAY BE AVAILABLE
 

Information:

Special Instruction
Procedure to Salvage the Slots for the Pin and Holes for the Reaction Dowel in Transmission Clutch Plates, Pistons, and Housings {3030, 3050, 3169, 3170, 3190}
Procedure to Salvage the Slots for the Pin and Holes for the Reaction Dowel in Transmission Clutch Plates, Pistons, and Housings {3030, 3050, 3169, 3170, 3190}
Technical Information Bulletin
Some 2P-4472, 7G-0825, and 8P-1656 Clutch Plates May Have Been Shipped Into the Parts System Before Finish Grinding
Some 2P-4472, 7G-0825, and 8P-1656 Clutch Plates May Have Been Shipped Into the Parts System Before Finish Grinding
Specifications
Hydraulic Controls For The Semiautomatic Transmission
SEMIAUTOMATIC TRANSMISSION CONTROLS
Pressure Control Valve For The Transmission<BR> (8S3400)
SEMIAUTOMATIC TRANSMISSION CONTROLS
Pressure Control Valve For The Transmission<BR> (1P3236)
SEMIAUTOMATIC TRANSMISSION CONTROLS
Transmission
621 WHEEL TRACTOR-SCRAPER POWER TRAIN
Engine Support Bracket
621 ENGINE
Tool Operating Manual
M0074040: 509-5085 Lifting Tool Assembly {0374, 0599, 0629, 0632, 3023, 3159, 3160, 5363, 7000}
M0074040: 509-5085 Lifting Tool Assembly {0374, 0599, 0629, 0632, 3023, 3159, 3160, 5363, 7000}
Reuse And Salvage Guidelines
Procedure to Salvage the Slots for the Pin and Holes for the Reaction Dowel in Transmission Clutch Plates, Pistons, and Housings {3030, 3050, 3169, 3170, 3190}
Procedure to Salvage the Slots for the Pin and Holes for the Reaction Dowel in Transmission Clutch Plates, Pistons, and Housings {3030, 3050, 3169, 3170, 3190}
Reusability of Drive Train Gears {3002, 3159, 3256, 4055}
Reusability of Drive Train Gears {3002, 3159, 3256, 4055}
Transmission, Torque Converter and Relief Valve Bench Test Procedures Reference Manual Contents {3030, 3101, 3133}
Transmission, Torque Converter and Relief Valve Bench Test Procedures Reference Manual Contents {3030, 3101, 3133}
Identification of Non-Metallic Discs that are Used in Power Shift Transmissions {3030, 3155}
Identification of Non-Metallic Discs that are Used in Power Shift Transmissions {3030, 3155}
Transmission Clutch Plates and Disc Assemblies with Sintered Bronze Friction Material {3030, 3155, 3190}
Transmission Clutch Plates and Disc Assemblies with Sintered Bronze Friction Material {3030, 3155, 3190}
Specifications for Inspection of Driveline Fasteners {3030, 3101, 3159, 3253, 3258, 3278, 4050}
Specifications for Inspection of Driveline Fasteners {3030, 3101, 3159, 3253, 3258, 3278, 4050}
Identification and Applications of Transmission Clutch Plates and Specifications to Machine Reaction Faces for Power Shift Transmissions {3054, 3155, 3160, 3190}
Identification and Applications of Transmission Clutch Plates and Specifications to Machine Reaction Faces for Power Shift Transmissions {3054, 3155, 3160, 3190}
Transmission Reuse and Salvage Manual Contents {0374, 3030}
Transmission Reuse and Salvage Manual Contents {0374, 3030}
Transmission Governor Salvage for Seven and Eight Speed Powershift Transmissions {3151}
Transmission Governor Salvage for Seven and Eight Speed Powershift Transmissions {3151}
Clutch Ring Gears For All Power Shift Transmissions {3030, 3155}
Clutch Ring Gears For All Power Shift Transmissions {3030, 3155}
Procedure to Salvage Tang Slots on Transmission and Brake Pistons {0679, 3160, 4011, 4251}
Procedure to Salvage Tang Slots on Transmission and Brake Pistons {0679, 3160, 4011, 4251}
Repair of Transmission, Torque Converter, and Torque Divider Shafts {3000, 3063, 3100}
Repair of Transmission, Torque Converter, and Torque Divider Shafts {3000, 3063, 3100}
Reusability Inspection of Seal Ring and Stator Carrier Assemblies for Certain Models {0760, 0761, 3101, 3129, 3160, 7555}
Reusability Inspection of Seal Ring and Stator Carrier Assemblies for Certain Models {0760, 0761, 3101, 3129, 3160, 7555}
Reuse and Salvage of Transmission Components {3030}
Reuse and Salvage of Transmission Components {3030}
Procedure to Machine Damaged Transmission and Differential Yokes {3030, 3253, 3258}
Procedure to Machine Damaged Transmission and Differential Yokes {3030, 3253, 3258}
Procedures to Salvage Thrust Faces on Planetary Carriers {3160, 4050, 4051, 4093}
Procedures to Salvage Thrust Faces on Planetary Carriers {3160, 4050, 4051, 4093}
Repair of Reaction Dowel Holes in Transmission Clutch Housings {3030, 3155, 3169}
Repair of Reaction Dowel Holes in Transmission Clutch Housings {3030, 3155, 3169}
Thermal Spray Procedures for Clutch Housing Piston Bore {0679, 3160, 3169}
Thermal Spray Procedures for Clutch Housing Piston Bore {0679, 3160, 3169}
Thermal Spray Procedures for Clutch Piston Inside Diameter {0679, 3160, 3170}
Thermal Spray Procedures for Clutch Piston Inside Diameter {0679, 3160, 3170}
Thermal Spray Procedures for Transmission, Torque Converter and Torque Divider Shafts {0679, 0719, 3030, 3101, 3125, 3130}
Thermal Spray Procedures for Transmission, Torque Converter and Torque Divider Shafts {0679, 0719, 3030, 3101, 3125, 3130}
Thermal Spray Procedures for Transmission and Torque Converter Yokes {0599, 0679, 3001, 3030, 3101, 3160}
Thermal Spray Procedures for Transmission and Torque Converter Yokes {0599, 0679, 3001, 3030, 3101, 3160}
Contamination Control Guidelines
Proper Oil Changing Procedures {1000, 1308, 1316, 1325, 1348, 3000, 3004, 3005, 3030, 3064, 3067, 3080, 3081, 4000, 4001, 4050, 4051, 5050, 5056, 5068, 5095}
Proper Oil Changing Procedures {1000, 1308, 1316, 1325, 1348, 3000, 3004, 3005, 3030, 3064, 3067, 3080, 3081, 4000, 4001, 4050, 4051, 5050, 5056, 5068, 5095}
Obtaining Oil Sample for Analysis {1302, 1348, 3030, 3080, 3278, 4011, 4070, 5050, 5056, 5095, 7542}
Obtaining Oil Sample for Analysis {1302, 1348, 3030, 3080, 3278, 4011, 4070, 5050, 5056, 5095, 7542}
Bench Test Procedures
Transmission, Torque Converter and Relief Valve Bench Test Procedures Reference Manual Contents {3030, 3101, 3133}
Transmission, Torque Converter and Relief Valve Bench Test Procedures Reference Manual Contents {3030, 3101, 3133}
Disassembly and Assembly
Transmission Oil Cooler
621 & 623 TRACTOR-SCRAPER ENGINE
Engine Front Support
621 & 623 TRACTOR-SCRAPER ENGINE
Transmission, Transfer Gear And Differential
621 & 623 TRACTOR-SCRAPER POWER TRAIN
Transmission Transfer Gear
621 & 623 TRACTOR-SCRAPER POWER TRAIN
Transmission Governor
621 & 623 TRACTOR-SCRAPER POWER TRAIN
Transmission
621 & 623 TRACTOR-SCRAPER POWER TRAIN
Transmission Hydraulic Control Valves
621 & 623 TRACTOR-SCRAPER POWER TRAIN
Service Magazine
Fixture For Disassembly And Assembly Of Center Shaft In Seven And Eight Speed Transmissions{0620,3150}
1977/01/17
Operating Techniques Guide Now Available For Wheel Tractor Scrapers With Eight Speed Transmission{0374,3150}
1977/06/20
Coasting While In Neutral May Cause Severe Transmission Damage{3150,3061,3186}
1989/09/25
Extension Cable Makes It Easier To Use ICM Transmission Control Monitor {3168,0600,1408}
1989/10/09
Spanner Wrench is Available for Ecology Drain Valves {1302, 1353, 1372, 5076, 5613}
2006/03/20
Improved Registration Process for Retrofit Products {1000, 3000, 7000, 7570}
2011/02/17
A New Bearing Cage Assembly is Now Used in the Planetary Group on Certain Wheel Tractor-Scrapers and Off-Highway Trucks {3030, 3160}
A New Bearing Cage Assembly is Now Used in the Planetary Group on Certain Wheel Tractor-Scrapers and Off-Highway Trucks {3030, 3160}

Caterpillar Parts SIS Catalog 621 :

PLANETARY TRANSMISSION
PLANETARY TRANSMISSION
PLANETARY TRANSMISSION
PLANETARY TRANSMISSION
PLANETARY TRANSMISSION
PLANETARY TRANSMISSION
PLANETARY TRANSMISSION
PLANETARY TRANSMISSION
PLANETARY TRANSMISSION
PLANETARY TRANSMISSION
PLANETARY TRANSMISSION
PLANETARY TRANSMISSION
MANIFOLD AND SCREEN
MANIFOLD AND SCREEN
MANIFOLD AND SCREEN
MANIFOLD AND SCREEN
PLANETARY TRANSMISSION
PLANETARY TRANSMISSION
PLANTERY TRANSMISSION
PLANTERY TRANSMISSION
PLANTERY TRANSMISSION
PLANTERY TRANSMISSION
PLANTERY TRANSMISSION
PLANTERY TRANSMISSION
PLANTERY TRANSMISSION
PLANTERY TRANSMISSION
PLANETARY TRANSMISSION
PLANETARY TRANSMISSION
PLANETARY TRANSMISSION
PLANETARY TRANSMISSION
PLANETARY TRANSMISSION
PLANETARY TRANSMISSION

Truck sale:

Caterpillar 621K WT, water trucks, Transport
699,500 
Caterpillar 621K WT, water trucks, Transport
- water trucks
HOLT OF CALIFORNIA
Caterpillar 621K, Road Scraper, Construction
379,500 
Caterpillar 621K, Road Scraper, Construction
- Road Scraper
ALTORFER INC.
 
826,455 
Caterpillar 621K, Road Scraper, Construction


Caterpillar 621K, Road Scraper, Construction
500,000 
Caterpillar 621K, Road Scraper, Construction

HOLT CAT
Caterpillar 621K, Road Scraper, Construction
435,000 
Caterpillar 621K, Road Scraper, Construction

CAROLINA CAT
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