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6N3500 GOVERNOR TORQUE SPRING GROUP--Type 2 Serial No. 70V794-Up Part of 6N1822 Governor and Fuel Injection Pump Group shown on Pages 66A and 66A-1 621B


FUEL SYSTEM
TORQUE CONTROL GP
LINES GP-FUEL INJECTION
DRIVE GP-TACHOMETER

WHEEL TRACTOR 621B WHEEL TRACTOR 45P
 3406 VEHICULAR ENGINE 45P00001-UP (MACHINE) UEG0835S 621B 45P   (1973)

FUEL SYSTEM

TORQUE CONTROL GP
GOVERNOR TORQUE SPRING
4N-4263 GOVERNOR TORQUE SPRING
CONTROL GP-TORQUE
6N-3537 CONTROL GP-TORQUE
CONTROL GP-TORQUE
6N-3537 CONTROL GP-TORQUE
CONTROL GP-TORQUE
6N-3500 CONTROL GP-TORQUE
TORQUE CONTROL GP
7N-3655 TORQUE CONTROL GP
CONTROL GP-TORQUE
6N-3500 CONTROL GP-TORQUE
CONTROL GP-TORQUE
6N-3500 CONTROL GP-TORQUE
CONTROL GP-TORQUE
6N-3500 CONTROL GP-TORQUE
SPRING GP-GOVERNOR TORQUE
4N-4265 SPRING GP-GOVERNOR TORQUE
TORQUE CONTROL GP
4N-4267 TORQUE CONTROL GP
 

#UEG0835S0240
 

6N-3500: CONTROL GP-TORQUE

6N3500 GOVERNOR TORQUE SPRING GROUP--Type 2
Serial No. 70V794-Up
Part of 6N1822 Governor and Fuel Injection Pump Group shown on Pages 66A and 66A-1
c167447 UEG0835S
6N3500 CONTROL GP-TORQUE Parts scheme
  For full view, you need register

Parts for your 621B WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4F-7957 [2] BOLT  
2. 9M-6292 [1] LOCK  
3. 1P-6452 [1] INSULATOR  
4. 4N-4218 [1] CONTACT  
5. 5S-2619 [1] SPRING .25 mm(.010 in.) thick  
6. 9L-5176 [1] SPRING .61 mm(.024 in.) thick  
7. 2S-7391 [1] BAR 3 mm(.118 in.) thick  
8. 1P-9958 [1] INSULATOR  
9. 7N-4012 C [1] SPACER .305 mm(.012 in.) thick  
10. 9L-7235 [1] SHIM .991 mm(.039 in.) thick  
11. 8M-9062 [1] RETAINER  
12. 9L-9347 C [1] SHIM .508 mm(.02 in.) thick  
13. 7N-2279 C [1] SPACER 1.27 mm(.05 in.) thick  
  C   INDICATES CHANGE
 

#UEG0835S0241
 

6N-3500: CONTROL GP-TORQUE

6N3500 TORQUE CONTROL GROUP--Type 3
Serial No. 70V794-Up. Part of 6N1822 Governor and Fuel Injection Pump
Group shown on Pages 66A and 66A-1
c173156 UEG0835S
6N3500 CONTROL GP-TORQUE Parts scheme
  For full view, you need register

Parts for your 621B WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4F-7957 [2] BOLT  
2. 9M-6292 [1] LOCK  
3. 1P-6452 [1] INSULATOR  
4. 4N-4218 [1] CONTACT  
5. 5S-2619 [1] SPRING .25 mm(.010 in.) thick  
6. 9L-5176 [1] SPRING .61 mm(.024 in.) thick  
7. 2S-7391 [1] BAR 3 mm(.118 in.) thick  
8. 1P-9958 [1] INSULATOR  
9. 7N-2279 [1] SPACER 1.27 mm(.05 in.) thick  
10. 9L-7235 [1] SHIM .991 mm(.039 in.) thick  
11. 8M-9062 [1] RETAINER  
12. 9L-9347 C [2] SHIM .508 mm(.02 in.) thick  
  C   INDICATES CHANGE
 

#UEG0835S0242
 

6N-3500: CONTROL GP-TORQUE

6N3500 TORQUE CONTROL GROUP--Type 4
Serial No. 70V794-Up
Part of 6N1822 Governor and Fuel Injection Pump Group shown on Pages 66A & 66A-1
c173398 UEG0835S
6N3500 CONTROL GP-TORQUE Parts scheme
  For full view, you need register

Parts for your 621B WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4F-7957 [2] BOLT  
2. 9M-6292 [1] LOCK  
3. 1P-6452 [1] INSULATOR  
4. 4N-4218 [1] CONTACT  
5. 5S-2619 [1] SPRING .25 mm(.010 in.) thick  
6. 9L-5176 [1] SPRING .61 mm(.024 in.) thick  
7. 2S-7391 [1] BAR 3 mm(.118 in.) thick  
8. 1P-9958 [1] INSULATOR  
9. 7N-2279 [1] SPACER 1.27 mm(.05 in.) thick  
10. 9L-7235 [1] SHIM .991 mm(.039 in.) thick  
11. 8M-9062 [1] RETAINER  
12. 4N-7777 C [1] SHIM .25 mm(.010 in.) thick  
13. 9L-9347 [1] SHIM .508 mm(.02 in.) thick  
  C   INDICATES CHANGE
 

#UEG0835S0243
 

4N-4265: SPRING GP-GOVERNOR TORQUE

GOVERNOR TORQUE SPRING (4N4265 N/S)
Part of 6N1822 Governor and Fuel Injection Pump Group shown on Page 66A
c143450 UEG0835S
4N4265 SPRING GP-GOVERNOR TORQUE Parts scheme
  For full view, you need register

Parts for your 621B WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4F-7957 [2] BOLT  
2. 9M-6292 [1] LOCK  
3. 9S-9003 [1] SPRING (.012" Thick)  
4. 2S-7391 [1] BAR (.118" Thick)  
5. 2S-7390 [1] SPACER (.032" Thick)  
6. 8L-8601 [1] SPACER (.002" Thick)  
7. 5S-2620 [1] SPACER (.078" Thick)  
8. 4N-4218 [1] CONTACT  
9. 8M-9062 [1] RETAINER  
10. 1P-6452 [1] INSULATOR  
 

#UEG0835S0244
 

4N-4267: TORQUE CONTROL GP

TORQUE CONTROL (4N4267 N/S)
Part of 6N2539 Fuel Pump Housing and Governor Group shown on Page 66B
c143957 UEG0835S
4N4267 TORQUE CONTROL 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. 4F-7957 [2] BOLT  
2. 9M-6292 [1] LOCK  
3. 4N-4218 [1] CONTACT  
4. 2S-7391 [1] BAR  
5. 8M-9062 [1] RETAINER  
6. 2S-7390 [2] SPACER  
7. 3S-0602 [1] RETAINER  
8. 1P-6452 [1] INSULATOR  
 

#UEG0835S0245
 

4N-1662: LINES GP-FUEL INJECTION

4N1662 FUEL INJECTION LINES GROUP
Serial No. 70V1 to 70V543 inclusive
c119377 UEG0835S
4N1662 LINES GP-FUEL INJECTION Parts scheme
  For full view, you need register

Parts for your 621B WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4N-1292 [6] LOCK  
2. 9L-9814 [10] NUT  
3. 4N-1796 C [6] ADAPTER  
4. 8M-4437 C [6] SEAL  
5. 4N-5336 [6] LINE ASSEM.  
  1H-1023 [6] SEAL  
6. 4N-1651 [1] LINE ASSEM. (No. 1)  
7. 4N-1281 [2] STRIP ASSEM.  
8. 9S-8586 [1] STUD  
9. 9S-2299 [2] STRIP  
10. 4N-2555 [3] DAMPER  
11. 0S-1617 [3] BOLT  
12. 4N-1652 [1] LINE ASSEM. (No. 2)  
13. 5H-7153 [1] SEAL  
14. 1S-0004 [1] SEAL  
15. 2P-3202 [3] BOLT  
16. 4N-1653 [1] LINE ASSEM. (No. 3)  
17. 4N-1279 [1] STRIP ASSEM.  
18. 9S-8586 [1] STUD  
19. 4N-1654 [1] LINE ASSEM. (No. 4)  
20. 4N-1277 [1] CLIP  
  4N-8249 [1] DAMPER  
21. 2P-3200 [2] BOLT  
22. 4N-1659 [1] BRACKET  
23. 1P-6909 [1] STRIP ASSEM.  
24. 9S-8586 [1] STUD  
25. 4N-1655 [1] LINE ASSEM. (No. 5)  
26. 4N-1656 [1] LINE ASSEM. (No. 6)  
27. 4N-3759 [6] NUT  
28. 4N-4877 [6] BODY  
29. 4N-1251 [6] NOZZLE ASSEM.  
30. 3B-4506 C [2] LOCKWASHER  
31. 3B-4505 C [3] LOCKWASHER  
  C   INDICATES CHANGE
 

#UEG0835S0246
 

4N-1662: LINES GP-FUEL INJECTION

4N1662 FUEL INJECTION LINES GROUP
Serial No. 70V544 to 70V1236 inclusive
c206133 UEG0835S
4N1662 LINES GP-FUEL INJECTION Parts scheme
  For full view, you need register

Parts for your 621B WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4N-1292 [6] LOCK  
2. 1B-5354 C [4] NUT  
3. 4N-1797 C [6] ADAPTER ASSEM.  
4. 8M-4437 [6] SEAL  
5. 4N-5336 [6] LINE ASSEM.  
  1H-1023 [6] SEAL  
6. 4N-9971 C [1] LINE ASSEM. (no. 1)  
7. 4N-1281 C [3] STRIP ASSEM.  
8. 9S-8586 [1] STUD  
9. 9S-2299 [2] STRIP  
10. 4N-2555 [3] DAMPER  
11. 0S-1617 [3] BOLT  
12. 4N-9972 C [1] LINE ASSEM. (no. 2)  
13. 5H-7153 [1] SEAL  
14. 1S-0004 [1] SEAL  
15. 1A-2029 C [3] BOLT  
16. 4N-9973 C [1] LINE ASSEM. (no. 3)  
17. 4N-1251 [6] NOZZLE ASSEM.  
18. 9M-1974 C [7] WASHER  
19. 4N-9974 C [1] LINE ASSEM. (no. 4)  
20. 4N-1277 [1] CLIP  
  4N-8249 [1] DAMPER  
21. 0S-1594 C [2] BOLT  
  5M-2894 [2] WASHER  
22. 9N-1847 C [1] BRACKET  
23. 1P-6909 [1] STRIP ASSEM.  
24. 9S-8586 [1] STUD  
25. 4N-9975 C [1] LINE ASSEM. (no. 5)  
26. 4N-9976 C [1] LINE ASSEM. (no. 6)  
27. 4N-3759 [6] NUT  
28. 4N-4877 [6] BODY  
29. 9L-9814 C [6] NUT  
  C   INDICATES CHANGE
 

#UEG0835S0247
 

4N-1662: LINES GP-FUEL INJECTION

4N1662 FUEL INJECTION LINES GROUP
Serial No. 70V1237 to 70V6281 inclusive
c214614 UEG0835S
4N1662 LINES GP-FUEL INJECTION Parts scheme
  For full view, you need register

Parts for your 621B WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4N-1292 [6] LOCK  
2. 1B-5354 [3] NUT  
3. 4N-1797 [6] ADAPTER ASSEM.  
4. 8M-4437 [6] SEAL  
5. 4N-5336 [6] LINE ASSEM.  
  1H-1023 [6] SEAL  
6. 4N-9971 [1] LINE ASSEM. (no. 1)  
7. 4N-1281 [3] STRIP ASSEM.  
8. 9S-8586 [1] STUD  
9. 9S-2299 [2] STRIP  
10. 4N-2555 [2] DAMPER  
11. 0S-1617 [3] BOLT  
12. 4N-9972 [1] LINE ASSEM. (no. 2)  
13. 9M-9647 C [1] SEAL  
14. 1S-0004 [1] SEAL  
15. 1A-2029 C [2] BOLT 1.125 in.(28.58 mm) long  
16. 4N-9973 [1] LINE ASSEM. (NO. 3)  
17. 4N-1251 [6] NOZZLE ASSEM.  
18. 9M-1974 [6] WASHER  
19. 4N-9974 [1] LINE ASSEM. (no.4)  
20. 4N-1277 [1] CLIP  
  4N-8249 [1] DAMPER  
21. 0S-1594 H [2] BOLT  
  5M-2894 H [2] WASHER  
22. 9N-1847 H [1] BRACKET  
23. 1P-6909 H [1] STRIP ASSEM.  
24. 9S-8586 [1] STUD  
25. 4N-9975 [1] LINE ASSEM. (no.5)  
26. 4N-9976 [1] LINE ASSEM. (no.6)  
27. 4N-3759 [6] NUT  
28. 4N-4877 [6] BODY  
29. 9L-9814 [6] NUT  
30. 0T-0573 C [1] BOLT 60.85 mm(2.75 in.)  
31. 1B-5354 H [1] NUT  
32. 9M-1974 H [1] WASHER  
33. 4N-2555 H [1] DAMPER  
  C   INDICATES CHANGE
  H   USE AS REQUIRED
 

#UEG0835S0248
 

8N-0304: LINES GP-FUEL INJECTION

8N304 FUEL INJECTION LINES GROUP
Serial No. 70V6282-Up
c223348 UEG0835S
8N0304 LINES GP-FUEL INJECTION Parts scheme
  For full view, you need register

Parts for your 621B WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4N-1292 [6] LOCK  
2. 1B-5354 [3] NUT  
3. 4N-1797 [6] ADAPTER ASSEM.  
4. 8M-4437 [6] SEAL  
5. 4N-5336 [6] LINE ASSEM.  
  1H-1023 [6] SEAL  
6. 4N-9971 [1] LINE ASSEM. (no. 1)  
7. 4N-1281 [3] STRIP ASSEM.  
8. 9S-8586 [1] STUD  
9. 9S-2299 [2] STRIP  
10. 4N-2555 [2] DAMPER  
11. 0S-1617 [3] BOLT  
12. 4N-9972 [1] LINE ASSEM. (no. 2)  
13. 9M-9647 [1] SEAL  
14. 1S-0004 [1] SEAL  
15. 1A-2029 [2] BOLT 1.125 in. (28.58 mm) long  
16. 4N-9973 [1] LINE ASSEM. (NO. 3)  
17. 7N-9843 [6] NOZZLE ASSEM.  
18. 9M-1974 [6] WASHER  
19. 4N-9974 [1] LINE ASSEM. (no.4)  
20. 4N-1277 [1] CLIP  
  4N-8249 [1] DAMPER  
21. 0S-1594 H [2] BOLT  
  5M-2894 H [2] WASHER  
22. 9N-1847 H [1] BRACKET  
23. 1P-6909 H [1] STRIP ASSEM.  
24. 9S-8586 [1] STUD  
25. 4N-9975 [1] LINE ASSEM. (no.5)  
26. 4N-9976 [1] LINE ASSEM. (no.6)  
27. 4N-3759 [6] NUT  
28. 9N-5529 [6] BODY  
29. 9L-9814 [6] NUT  
30. 0T-0573 [1] BOLT 60.85 mm(2.75 in.)  
31. 1B-5354 H [1] NUT  
32. 9M-1974 H [1] WASHER  
33. 4N-2555 H [1] DAMPER  
  H   USE AS REQUIRED
 

#UEG0835S0249
 

4N-3064: DRIVE GP-TACHOMETER

4N3064 TACHOMETER DRIVE GROUP
c228156 UEG0835S
4N3064 DRIVE GP-TACHOMETER Parts scheme
  For full view, you need register

Parts for your 621B WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 9S-3032 [2] CLAMP  
2. 4B-3388 [2] BOLT  
  3F-9556 [2] LOCKWASHER  
3. 2P-6228 [1] ADAPTER ASSEM.  
4. 4M-8303 [1] SEAL  
5. 5P-9294 C [1] SEAL  
  C   INDICATES CHANGE
 

Information:

Special Instruction
Use Of 6V22 Tool Group For Replacement Of Governor Spring Guide{620, 624, 1264}
Use Of 6V22 Tool Group For Replacement Of Governor Spring Guide{620, 624, 1264}
Installation Of Governor Spring Guide{1264}
Installation Of Governor Spring Guide{1264}
Service Magazine
Steel Fuel Pump Lifter Used{1250,1251}
1985/09/02
Check Fuel Injection Replacement Pump Installation{1251,1253,1257}
1985/10/28
Nylon Seals Used On Lockwire To Seal Critical Areas; Parts Service Seals Available For NACD Dealers{1257,1264}
1986/03/10
Black Nylon Fuel Seals For Lockwire Available Only To NACD Dealers For Certain Customers{1257,1264}
1986/06/09
More Flexible Lockwire Used With Nylon Seals For Sealing Critical Areas{1257,1264}
1986/09/22
Nylon Seals Used On Lockwire To Seal Critical Areas; All Subsidiary Dealers Can Now Order Parts Service Seals {1257,1264}
1986/11/03
Use New 6V22 Tool Group To Make Replacement Of Worn Governor Spring Guides{0620}
1978/09/25
Tee Handle Hexagonal Wrench In Rack Adjusting Tool Is Now Available For Parts Replacement
1979/09/10

Caterpillar Parts SIS Catalog 621B :

TORQUE CONTROL GP
7N-3655 TORQUE CONTROL GP
CONTROL GP-TORQUE
6N-3500 CONTROL GP-TORQUE
CONTROL GP-TORQUE
6N-3537 CONTROL GP-TORQUE
CONTROL GP-FUEL RATIO
4N-1210 CONTROL GP-FUEL RATIO
CONTROL GP-TORQUE
6N-3537 CONTROL GP-TORQUE
CONTROL GP-FUEL RATIO
4N-1210 CONTROL GP-FUEL RATIO
GOVERNOR TORQUE SPRING
4N-4263 GOVERNOR TORQUE SPRING
PUMP GP-FUEL INJECTION
6N-1043 PUMP GP-FUEL INJECTION
CONTROL GP-TORQUE
6N-3500 CONTROL GP-TORQUE
CONTROL GP-TORQUE
6N-3500 CONTROL GP-TORQUE
SPRING GP-GOVERNOR TORQUE
4N-4265 SPRING GP-GOVERNOR TORQUE
TORQUE CONTROL GP
4N-4267 TORQUE CONTROL GP
LINES GP-FUEL INJECTION
4N-1662 LINES GP-FUEL INJECTION
LINES GP-FUEL INJECTION
4N-1662 LINES GP-FUEL INJECTION
LINES GP-FUEL INJECTION
4N-1662 LINES GP-FUEL INJECTION
LINES GP-FUEL INJECTION
8N-0304 LINES GP-FUEL INJECTION

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