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8D8220 FRAME AND CASE GROUP--Part 2 of 3 Serial No. 45P2372-Up 621B WHEEL TRACTOR


FRAME AND BODY
CASE & FRAME GP
POWER TRAIN
PUMP GP
TRANSMISSION GP
CONTROL GP-DIFFERENTIAL LOCK
DIFFERENTIAL & BEVEL GEAR GP
CONTROL GP-DIFFERENTIAL LOCK
DIFFERENTIAL & BEVEL GEAR GP

WHEEL TRACTOR 621B WHEEL TRACTOR 45P
 621B TRACTOR 45P00001-02711 (MACHINE) UEG0807S 621B 45P   (1973)

FRAME AND BODY

CASE & FRAME GP
CASE & FRAME GP
8D-8220 CASE & FRAME GP
CASE & FRAME GP
8D-8220 CASE & FRAME GP
CASE & FRAME GP
8D-8220 CASE & FRAME GP
CASE & FRAME GP
8D-8220 CASE & FRAME GP
 

#UEG0807S0240
 

8D-8220: CASE & FRAME GP

8D8220 FRAME AND CASE GROUP--Part 2 of 3
Serial No. 45P2372-Up
c173082 UEG0807S
8D8220 CASE & FRAME GP Parts scheme
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Parts for your 621B WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 9M-2151 [10] STUD  
2. 1D-4717 [16] NUT  
3. 3B-4506 [16] LOCKWASHER  
4. 4D-1744 [1] COVER  
  4D-1746 [1] GASKET  
5. 5M-1719 [6] STUD  
6. 2G-5966 [1] PLATE ASSEM.  
7. 5D-0353 [36] BOLT  
8. 8D-6114 [1] PLATE ASSEM.  
    (Includes)
  9F-2978 [4] NUT  
9. 2J-3118 [6] BOLT  
10. 0S-1577 [1] BOLT  
  2K-4821 [1] LOCKNUT  
11. 9S-8184 [1] PIN ASSEM.  
12. 8D-4640 [1] PLATE ASSEM.  
    (Includes)
  1F-0748 [2] NUT  
13. 9F-2978 [3] NUT  
14. 5M-2894 [42] WASHER  
15. 2G-7756 [4] CLAMP  
  9K-6285 [4] BAR  
16. 5H-2168 [1] LATCH  
17. 2G-7757 [2] STEP ASSEM.  
18. 6G-2654 C [1] COVER ASSEM.  
    (Includes)
  1H-7263 [2] LUG  
19. 9B-2923 [4] HINGE  
20. 2G-7788 [1] PAD ASSEM.  
21. 2G-7787 [2] PAD ASSEM.  
22. 1H-7262 [2] LUG  
23. 5K-7143 [8] BOLT  
  5P-8245 [8] WASHER  
24. 2G-7163 [1] BOX ASSEM.  
    (Includes)
  1F-0748 [2] NUT  
25. 8D-4565 [1] PLATE  
26. 8D-4580 [1] PLATE ASSEM.  
    (Includes)
27. 9F-2978 [3] NUT  
  C   INDICATES CHANGE
 

#UEG0807S0241
 

8D-8220: CASE & FRAME GP

8D8220 FRAME AND CASE GROUP--Part 3 of 3
Serial No. 45P2372-Up
c173083 UEG0807S
8D8220 CASE & FRAME GP Parts scheme
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Parts for your 621B WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 3D-8439 [18] STUD 8.65 cm(3.406 in.) long  
  2D-9345 [2] STUD 6.63 cm(2.609 in.) long  
2. 2D-8369 [6] STUD  
3. 4D-6579 [44] STUD  
4. 3D-0490 [6] STUD  
5. 4K-7463 [2] SEAL  
6. 8D-8829 [2] BEARING  
7. 5H-7844 [4] GASKET  
8. 5K-7143 [8] BOLT  
  5P-8245 [8] LOCKWASHER  
9. 8D-2824 [2] MANIFOLD  
10. 5D-0353 [12] BOLT  
  5M-2894 [12] LOCKWASHER  
11. 8D-8419 [1] TUBE ASSEM.  
    (Includes)
12. 7D-0006 [1] BOSS  
13. 8D-0768 [1] CAP  
  6F-5188 [1] GASKET  
14. 1D-4717 [2] NUT  
15. 0L-1124 [2] GASKET  
16. 8D-8417 [1] TUBE ASSEM.  
17. 1F-4738 [2] GASKET  
18. 8D-8415 [1] GAUGE ASSEM.  
19. 6G-0078 [1] BREATHER  
20. 8D-8413 [1] CLAMP (Long)  
  8D-8414 [1] CLAMP (Short)  
21. 4H-6112 [1] BREATHER  
22. 6D-6144 [1] CAP  
  4D-0306 [1] GASKET  
23. 8D-8411 [1] GAUGE ASSEM.  
24. 8D-8423 [1] TUBE ASSEM.  
25. 8D-8421 [1] TUBE ASSEM.  
26. 8J-7596 [2] BEARING  
27. 8D-4926 [1] COVER  
  5S-3676 [1] SEAL  
28. 8B-6599 [2] PLUG  
 

#UEG0807S0242
 

8D-6050: PUMP GP-GEAR

GEAR PUMP (8D6050 N/S)
c201262 UEG0807S
8D6050 PUMP GP-GEAR Parts scheme
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Parts for your 621B WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 1A-2029 [3] BOLT  
2. 3B-4506 [4] LOCKWASHER  
3. 1B-4203 [1] NUT  
4. 8D-4400 [1] GEAR (27 teeth)  
  1B-8702 [1] KEY  
5. 3H-1302 [1] RING  
6. 8D-4408 [1] WASHER  
7. 5H-6734 [1] SEAL  
8. 2P-9313 Y [1] PUMP GROUP  
    (Separate Illustration)
  Y   SEPARATE ILLUSTRATION
 

#UEG0807S0243
 

2P-9313: PUMP GP-GEAR

2P9313 GEAR PUMP GROUP--Single Section
Part of Gear Pump
c201263 UEG0807S
2P9313 PUMP GP-GEAR Parts scheme
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Parts for your 621B WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 2P-9304 [1] COVER ASSEM.  
    (Includes)
2. 8S-0922 [2] BEARING  
3. 2P-9331 [1] MANIFOLD ASSEM.  
    (Includes)
4. 8M-8489 [2] DOWEL  
5. 8S-0922 [2] BEARING  
6. 7S-3029 [1] SEAL  
7. 4M-0189 [1] SEAL  
8. 5S-1599 [1] GEAR ASSEM. (10 teeth)  
9. 2P-9332 [1] GEAR ASSEM. (10 teeth)  
10. 1T-0720 [4] BOLT  
  3S-0004 [4] WASHER  
 

#UEG0807S0244
 

2G-7941: COVER AS

2G7941 COVER ASSEMBLY--Field Installation
Serial No. 45P1281-Up
Provides service replacement for 9D8617 and 2G7925
Cover Assemblies shown on Pages 69E, 69H, 69L, 69P and 69S
c213328 UEG0807S
2G7941 COVER AS Parts scheme
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Parts for your 621B WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 9B-2923 [4] HINGE  
2. 1H-7262 [2] LUG  
3. 1H-7263 [2] LUG  
4. 2G-7788 [2] PAD ASSEM.  
5. 2G-7787 [4] PAD ASSEM.  
 

#UEG0807S0245
 

8D-8010: CONTROL GP-DIFFERENTIAL LOCK

8D8010 DIFFERENTIAL LOCK CONTROL GROUP
Serial No. 45P1217-Up
6D856 Valve parts are shown on Page 45
c228101 UEG0807S
8D8010 CONTROL GP-DIFFERENTIAL LOCK Parts scheme
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Parts for your 621B WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 6J-7924 [1] HOSE ASSEM. (104 in. long)  
2. 3D-7587 [1] UNION  
3. 2J-3118 [1] BOLT  
4. 8D-6890 [1] PEDAL  
5. 8D-3372 [1] PIN  
  3B-4607 [1] COTTER  
6. 8L-5202 [1] BOLT  
  1B-2578 [1] NUT  
7. 8D-6891 [1] BRACKET  
8. 5M-9708 [1] SPRING  
9. 1A-2029 [3] BOLT  
  3B-4506 [3] LOCKWASHER  
10. 6D-0856 Y [1] VALVE ASSEM.  
    (Separate Illustration)
11. 7K-1181 C [4] STRAP  
12. 2G-3524 C [1] TUBE ASSEM.  
13. 5K-9246 [2] CONNECTOR  
14. 3D-6370 [1] UNION  
  C   INDICATES CHANGE
  Y   SEPARATE ILLUSTRATION
 

#UEG0807S0246
 

8D-5059: DIFFERENTIAL GP

8D5059 DIFFERENTIAL GROUP
Part of 8D5060 Differential and Bevel Gear Group shown on Pages 72 & 73C
c237370 UEG0807S
8D5059 DIFFERENTIAL GP Parts scheme
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Parts for your 621B WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 9D-2706 [8] BOLT  
  2K-0337 [8] LOCKNUT  
  2S-0115 [8] WASHER-HARD  
2. 5D-5468 [4] PINION-DIFFERENTIAL BEVEL  
3. 3D-6509 [8] DOWEL  
4. 8D-4027 [1] HOUSING-DIFFERENTIAL  
5. 8D-4026 C [1] HOUSING-DIFFERENTIAL  
6. 7D-9355 [2] GEAR-DIFFERENTIAL BEVEL  
7. 5D-5532 [2] WASHER-THRUST  
8. 5D-5498 [4] BEARING-SLEEVE  
9. 5D-9675 [1] SPIDER  
10. 5D-5533 [4] WASHER-THRUST  
  C   CHANGE FROM PREVIOUS TYPE
 

#UEG0807S0247
 

8D-1010: DIFFERENTIAL LOCK CONTROL GROUP

8D1010 DIFFERENTIAL LOCK CONTROL GROUP
Serial No. 45P1 to 45P1216 inclusive
6D856 Valve parts are shown on Page 45
c201267 UEG0807S
8D1010 DIFFERENTIAL LOCK CONTROL GROUP Parts scheme
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Parts for your 621B WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 6J-7924 [1] HOSE ASSEM. (104 in. long)  
2. 3D-7587 [1] UNION  
3. 2J-3118 [1] BOLT  
4. 8D-6890 [1] PEDAL  
5. 8D-3372 [1] PIN  
  3B-4607 [1] COTTER  
6. 8L-5202 [1] BOLT  
  1B-2578 [1] NUT  
7. 8D-6891 [1] BRACKET  
8. 5M-9708 [1] SPRING  
9. 1A-2029 [3] BOLT  
  3B-4506 [3] LOCKWASHER  
10. 6D-0856 Y [1] VALVE ASSEM.  
    (Separate Illustration)
11. 3L-6521 [1] TEE  
12. 8D-8957 [1] TUBE ASSEM.  
13. 5K-9246 [2] CONNECTOR  
14. 3D-6370 [1] UNION  
  Y   SEPARATE ILLUSTRATION
 

#UEG0807S0248
 

8D-5060: DIFFERENTIAL & BEVEL GEAR GP

8D5060 DIFFERENTIAL AND BEVEL GEAR GROUP--Part 1 of 2
Serial No. 45P1 to 45P949 inclusive
8D5059 Differential parts are shown on Page 71
c165130 UEG0807S
8D5060 DIFFERENTIAL & BEVEL GEAR GP Parts scheme
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Parts for your 621B WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 8M-4990 [1] SEAL  
2. 3B-8999 [1] FITTING  
    (Includes)
  8F-8997 [1] NUT  
3. 5P-1200 J TUBE 32.3 cm (12.70 in.)  
4. 6B-9938 [1] CONNECTOR  
5. 7F-2122 [2] SEAL  
6. 8D-4444 [1] TUBE ASSEM.  
    (Includes)
  6D-1886 [1] STOP  
7. 8D-4199 [1] CARRIER ASSEM.  
    (Includes)
8. 0S-1587 [2] BOLT  
9. 3D-8083 [4] STUD  
  1B-4443 C [4] NUT  
  3D-8242 C [4] SLEEVE  
10. 1D-4586 [2] BOLT 3.50 in. (8.89 cm) long  
  0S-1569 [2] BOLT 4 in. (10.1 cm) long  
11. 8D-5059 Y [1] DIFFERENTIAL GROUP  
    (Separate Illustration)
12. 8D-3669 [1] GEAR (46 teeth)  
13. 5H-7370 [1] SEAL  
14. 9S-1308 [2] BOLT  
15. 2D-8531 [1] LOCK  
  7B-5500 [1] DOWEL  
16. 5P-6628 CH LOCKWIRE 1.956 m (77 in.)  
17. 0S-1589 [4] BOLT  
18. 3B-4510 [24] LOCKWASHER  
19. 3B-4597 [24] BOLT  
  2K-0337 [24] LOCKNUT  
  2S-0115 [24] WASHER  
20. 6F-0711 C [1] SEAL  
21. 0L-1351 [10] BOLT  
  0L-0364 [10] LOCK  
22. 1D-4720 [20] NUT  
23. 7D-6386 [1] LOCK  
  3F-1953 [1] DOWEL  
24. 5D-9522 [1] UNION  
25. 4D-2847 [1] HOSE ASSEM. 17.75 in. (45.1 cm)  
26. 9M-8406 [1] CLIP  
  2S-0635 [2] BOLT  
27. 8D-4448 [1] BRACKET  
  0S-0509 [2] BOLT  
  3H-3451 [1] LOCK  
  C   INDICATES CHANGE
  Y   SEPARATE ILLUSTRATION
  H   ORDER BY THE METRE
  J   ORDER BY THE CENTIMETRE
 

#UEG0807S0249
 

8D-5060: DIFFERENTIAL & BEVEL GEAR GP

8D5060 DIFFERENTIAL AND BEVEL GEAR GROUP--Part 2 of 2
Serial No. 45P1 to 45P949 inclusive
c149231 UEG0807S
8D5060 DIFFERENTIAL & BEVEL GEAR GP Parts scheme
  For full view, you need register

Parts for your 621B WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 6D-1018 [1] NUT  
2. 3D-5694 [1] STOP  
3. 7D-6378 [2] BOLT  
  3P-1389 H LOCKWIRE 2.29 dm(9 in.)  
4. 8S-9076 [2] CUP  
  8S-9075 [2] CONE  
5. 7D-6368 [1] RING  
6. 7D-6088 [1] JAW  
7. 6D-2718 [2] DOWEL  
8. 7D-6319 [1] RING  
9. 7D-6415 [1] CYLINDER  
10. 7D-6102 [1] WASHER  
11. 7D-6251 [1] PISTON  
12. 7D-6232 [1] SEAL  
13. 7D-6103 [1] SPACER  
14. 7D-6151 [1] JAW  
15. 5D-6792 [1] RING  
16. 7D-6101 [1] WASHER  
17. 7D-4893 [12] SPRING  
18. 7D-6233 [1] SEAL  
19. 2D-8364 [1] SEAL  
20. 8D-5096 [1] SEAL  
21. 7D-6222 [1] HOUSING  
22. 8D-4311 [1] CAGE  
23. 8F-8861 [1] SEAL  
24. 8D-4335 [1] PINION ASSEM. (16 teeth)  
    (Includes)
25. 1F-9994 [1] PLUG  
26. 3D-1968 [1] SEAL  
27. 3D-1969 [1] RING  
28. 1P-7896 [1] CUP  
  1P-7895 [1] CONE  
29. 8D-4294 [1] RETAINER  
30. 7B-3235 [6] BOLT  
  2B-1738 [6] LOCK  
31. 6D-7652 [5] SHIM .005 in.(.13 mm) thick  
  6D-7655 [5] SHIM .007 in.(.18 mm) thick  
32. 9H-3360 [1] SEAL  
33. 9D-9253 [1] CAGE  
34. 4B-8393 [1] CUP  
  6F-8110 [1] CONE  
35. 5D-9265 [1] RING  
  H   ORDER BY THE DECIMETRE
 

Information:

Specifications
Case and Frame Group
621B TRACTOR POWER TRAIN
Service Magazine
New Differential Thrust Pin Can Be Adjusted From Outside The Case{3258,3280,4051,4059,7051}
1982/11/08

Caterpillar Parts SIS Catalog 621B :

CASE & FRAME GP
8D-8220 CASE & FRAME GP
CASE & FRAME GP
8D-8220 CASE & FRAME GP
CASE & FRAME GP
8D-8220 CASE & FRAME GP
CASE & FRAME GP
8D-8220 CASE & FRAME GP
CASE & FRAME GP
8D-8220 CASE & FRAME GP
CASE & FRAME GP
8D-8220 CASE & FRAME GP
CASE & FRAME GP
8D-8220 CASE & FRAME GP
CASE & FRAME GP
8D-8220 CASE & FRAME GP
CASE & FRAME GP
8D-8220 CASE & FRAME GP
PUMP GP-GEAR
8D-6050 PUMP GP-GEAR
PUMP GP-GEAR
2P-9313 PUMP GP-GEAR
COVER AS
2G-7941 COVER AS
CONTROL GP-DIFFERENTIAL LOCK
8D-8010 CONTROL GP-DIFFERENTIAL LOCK
DIFFERENTIAL GP
8D-5059 DIFFERENTIAL GP
DIFFERENTIAL LOCK CONTROL GROUP
8D-1010 DIFFERENTIAL LOCK CONTROL GROUP
DIFFERENTIAL & BEVEL GEAR GP
8D-5060 DIFFERENTIAL & BEVEL GEAR GP

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