FUEL SYSTEM
LINES GP-FUELFILTER GP-FUEL
PUMP GP-FUEL PRIMING
LUBRICATION SYSTEM
FILTER GP-ENGINE OILLINES GP-ENGINE OIL
FUEL SYSTEM
CONTROL GP-GOVERNORFUEL SYSTEM
LINES GP-FUEL#UEG0807S0030
8D-8140: LINES GP-FUEL OIL
8D8140 FUEL LINES GROUP
Serial No. 45P993 to 45P1135 inclusive
6N1044 Filter and 4N3287 Pump parts are shown on Page 23D
Serial No. 45P993 to 45P1135 inclusive
6N1044 Filter and 4N3287 Pump parts are shown on Page 23D
Parts for your 621B WHEEL TRACTOR:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1. | 2G-1071 | [1] | HOSE ASSEM. 137 cm(54 in.) | |
| 2. | 0S-0509 | [2] | BOLT | |
| 3. | 3B-4506 | [7] | LOCKWASHER | |
| 4. | 8M-2770 | [3] | CLIP | |
| 5. | 6K-9194 | [2] | ELBOW | |
| 6. | 8L-3282 | [2] | CONNECTOR | |
| 7. | 9D-5676 | [1] | HOSE ASSEM. | |
| 8. | 5K-8451 | [4] | CLIP | |
| 9. | 030-7947 C | [2] | ELBOW | |
| 3J-1907 C | [2] | SEAL | ||
| 10. | 0L-1351 | [1] | BOLT | |
| 1D-4717 | [1] | NUT | ||
| 11. | 9L-1566 | [1] | SUPPORT | |
| 12. | 6N-0938 C | [1] | HOSE ASSEM. 86 in. (21.84 dm) | |
| 13. | 6N-1044 YC | [1] | FILTER GROUP | |
| (Separate Illustration) | ||||
| 14. | 1A-2029 | [2] | BOLT | |
| 15. | 4B-4278 C | [4] | WASHER | |
| 16. | 0S-1594 | [2] | BOLT | |
| 17. | 8M-2773 | [2] | CLIP | |
| 18. | 5H-4778 | [1] | UNION | |
| 19. | 0S-1617 | [1] | BOLT | |
| 3B-4505 | [1] | LOCKWASHER | ||
| 4B-4277 | [1] | WASHER | ||
| 20. | 4M-5317 | [1] | BUSHING | |
| 8L-6557 | [1] | CONNECTOR | ||
| 21. | YC | [1] | PUMP GROUP | |
| (Separate Illustration) | ||||
| 22. | 5P-1404 C | [1] | ADAPTER | |
| 2M-9780 | [1] | SEAL | ||
| C | INDICATES CHANGE | |||
| Y | SEPARATE ILLUSTRATION | |||
#UEG0807S0031
8D-8140: LINES GP-FUEL OIL
8D8140 FUEL LINES GROUP
Serial No. 45P1136-Up
6N1044 Filter and 4N3287 Pump parts are shown on Page 23D
Serial No. 45P1136-Up
6N1044 Filter and 4N3287 Pump parts are shown on Page 23D
Parts for your 621B WHEEL TRACTOR:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1. | 2G-1071 | [1] | HOSE ASSEM. 137 cm(54 in.) | |
| 2. | 0S-0509 | [2] | BOLT | |
| 3. | 3B-4506 | [7] | LOCKWASHER | |
| 4. | 4K-8864 C | [3] | CLIP | |
| 5. | 2N-8037 C | [2] | ELBOW | |
| 6. | 6K-1972 C | [1] | ELBOW | |
| 7. | 2G-4506 C | [1] | HOSE ASSEM. 35.2 cm(138.58 in.) | |
| 8. | 4D-7733 C | [4] | CLIP | |
| 9. | 030-7947 | [2] | ELBOW | |
| 3J-1907 | [2] | SEAL | ||
| 10. | 0L-1351 | [1] | BOLT | |
| 10. | 1D-4717 | [1] | NUT | |
| 1D-4717 | [1] | NUT | ||
| 11. | 9L-1566 | [1] | SUPPORT | |
| 12. | 6N-0938 | [1] | HOSE ASSEM.[218.4 CM(86 IN.) | |
| 13. | 6N-1044 Y | [1] | FILTER GROUP | |
| (Separate Illustration) | ||||
| 14. | 1A-2029 | [2] | BOLT | |
| 15. | 4B-4278 | [4] | WASHER | |
| 16. | 0S-1594 | [2] | BOLT | |
| 17. | 8M-2773 | [2] | CLIP | |
| 18. | 1S-6420 C | [1] | CLIP | |
| 19. | 0S-1617 | [1] | BOLT | |
| 3B-4505 | [1] | LOCKWASHER | ||
| 4B-4277 | [1] | WASHER | ||
| 20. | 4S-6399 C | [1] | CONNECTOR | |
| 21. | 4N-3287 CY | [1] | PUMP ASSEM. | |
| (Separate Illustration) | ||||
| 22. | 5P-1404 | [1] | ADAPTER | |
| 2M-9780 | [1] | SEAL | ||
| C | INDICATES CHANGE | |||
| Y | SEPARATE ILLUSTRATION | |||
#UEG0807S0032
6N-1044: FILTER GP-PRIMARY FUEL
6N1044 PRIMARY FUEL FILTER GROUP
Serial No. 45P993-Up
Part of 8D8140 Fuel Lines Group shown on Pages 23B and 23C
Serial No. 45P993-Up
Part of 8D8140 Fuel Lines Group shown on Pages 23B and 23C
Parts for your 621B WHEEL TRACTOR:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1P-2298 | [1] | VALVE ASSEM. | ||
| (Part of 6N1045 Assem.) | ||||
| 8H-2807 | [1] | NUT | ||
| 8N-4410 C | [1] | GASKET | ||
| 6N-1045 C | [1] | BASE ASSEM. | ||
| 1L-3769 | [1] | RING | ||
| 8H-2778 | [1] | GASKET | ||
| 9M-2341 | [1] | ELEMENT ASSEM. (washable) | ||
| 8H-2810 | [1] | CASE ASSEM. | ||
| 7H-9678 | [1] | RETAINER | ||
| 2H-3429 | [1] | RING | ||
| 7S-9323 | [1] | SPRING | ||
| C | INDICATES CHANGE | |||
#UEG0807S0033
4N-3287: PUMP GP-FUEL PRIMING
4N3287 FUEL PRIMING PUMP GROUP
Serial No. 45P993-Up
Part of 8D8140 Fuel Lines Group shown on Pages 23B and 23C
Serial No. 45P993-Up
Part of 8D8140 Fuel Lines Group shown on Pages 23B and 23C
Parts for your 621B WHEEL TRACTOR:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1. | 1P-0436 | [1] | GASKET | |
| 2. | 4B-3388 | [1] | BOLT | |
| 2.86 CM(1.125 IN)LONG | ||||
| -OR- | ||||
| 1B-2790 C | [1] | BOLT | ||
| 3.49 CM(1.375 IN)LONG | ||||
| 9M-1974 C | [1] | WASHER | ||
| 7.95 MM(.313 IN)DIA | ||||
| 3. | 0S-1616 | [1] | BOLT | |
| 2.54 CM(1 IN)LONG | ||||
| -OR- | ||||
| 7B-2742 C | [1] | BOLT | ||
| 3.18 CM(1.25 IN)LONG | ||||
| 5P-0537 C | [1] | WASHER | ||
| 6.35 MM(.25 IN)DIA | ||||
| 4. | 4N-2511 | [1] | PUMP AS-FUEL PRIMING | |
| C | CHANGE FROM PREVIOUS TYPE | |||
#UEG0807S0034
4N-2281: FILTER GP-OIL
4N2281 OIL FILTER GROUP
Serial No. 45P1 to 1944, 1947, 1954, 1955, 1960 and 45P1975 inclusive
See Engine Oil Lines in 3406 Vehicular Engine book for Engine Oil Filter at
Serial Number not listed above
Serial No. 45P1 to 1944, 1947, 1954, 1955, 1960 and 45P1975 inclusive
See Engine Oil Lines in 3406 Vehicular Engine book for Engine Oil Filter at
Serial Number not listed above
#UEG0807S0035
4N-2279: LINES GP-ENGINE OIL
4N2279 OIL LINES GROUP--Remote Mount Filter
Serial No. 45P1 to 1944, 1947, 1954, 1955, 1960 and 45P1975 inclusive
Serial No. 45P1 to 1944, 1947, 1954, 1955, 1960 and 45P1975 inclusive
Parts for your 621B WHEEL TRACTOR:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1. | 0L-1351 | [6] | BOLT | |
| 2. | 2S-6160 | [2] | WASHER | |
| 3. | 9L-5717 C | [1] | COVER | |
| 4. | 2P-4305 | [2] | GASKET | |
| 5. | 0S-1591 | [4] | BOLT | |
| 6. | 1D-4717 | [6] | NUT | |
| 7. | 5M-2894 | [16] | WASHER | |
| 8. | 9D-7255 | [1] | BRACKET ASSEM. | |
| 9. | 2M-1538 | [2] | STUD | |
| 10. | 0S-1588 | [2] | BOLT | |
| 11. | 4N-8725 | [1] | ADAPTER | |
| 12. | 4N-8825 | [1] | HOSE ASSEM. 114.30 cm(45 in.) | |
| 13. | 8M-4986 | [4] | SEAL | |
| 14. | 4N-8922 | [1] | HOSE ASSEM. 101.60 cm(40 in.) | |
| 15. | 1P-4578 | [8] | FLANGE | |
| 16. | 0T-0772 | [16] | BOLT | |
| 4S-9191 | [16] | WASHER | ||
| C | INDICATES CHANGE | |||
#UEG0807S0036
4N-2279: LINES GP-ENGINE OIL
4N2279 OIL LINES GROUP--Remote Mount Filter
Serial No. 45P1945, 1946, 1948 to 1953, 1956 to 1959, 1961 to 1974 and 45P1976-Up
Serial No. 45P1945, 1946, 1948 to 1953, 1956 to 1959, 1961 to 1974 and 45P1976-Up
Parts for your 621B WHEEL TRACTOR:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1. | 9D-7255 | [1] | BRACKET ASSEM. | |
| 2. | 0L-1351 | [6] | BOLT | |
| 3. | 5M-2894 | [16] | WASHER | |
| 4. | 2S-6160 | [2] | WASHER | |
| 5. | 2P-4305 | [2] | GASKET | |
| 6. | 7N-3300 C | [1] | ADAPTER | |
| 7. | 8M-4986 | [4] | SEAL | |
| 8. | 1P-4578 | [8] | FLANGE | |
| 9. | 0T-0772 | [16] | BOLT | |
| 4S-9191 | [16] | WASHER | ||
| 10. | 4N-8825 C | [1] | HOSE ASSEM. 92.7 cm(36.50 in.) | |
| 11. | 0S-1571 C | [2] | BOLT | |
| 12. | 4N-2211 C | [1] | ADAPTER | |
| 4H-3243 C | [1] | SEAL (large) | ||
| 3P-1979 C | [1] | SEAL (small) | ||
| 13. | 4N-8922 C | [1] | HOSE ASSEM. 87.6 cm(34.50 in.) | |
| 14. | 7F-9090 C | [2] | SCREW | |
| 15. | 0S-1588 | [2] | BOLT | |
| 16. | 2M-1538 | [2] | STUD | |
| 17. | 1D-4717 | [6] | NUT | |
| 18. | 2P-4303 C | [1] | BASE ASSEM. | |
| 19. | 4N-7082 C | [1] | SHIELD | |
| 20. | 9L-5717 | [1] | COVER | |
| 21. | 0S-1591 | [4] | BOLT | |
| C | INDICATES CHANGE | |||
#UEG0807S0037
8D-7805: CONTROL GP-GOVERNOR
GOVERNOR CONTROL (8D7805 N/S)
Parts for your 621B WHEEL TRACTOR:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1. | 1B-4669 C | [2] | COLLAR | |
| 2. | 7D-0001 | [1] | BRACKET | |
| 3. | 0S-1594 | [4] | BOLT | |
| 4. | 3B-4506 | [12] | LOCKWASHER | |
| 5. | 4D-2619 | [2] | BEARING | |
| 6. | 8D-7539 | [1] | PEDAL | |
| 7. | 0L-1351 | [6] | BOLT | |
| 8. | 2G-4721 C | [1] | PLATE ASSEM. | |
| (Includes) | ||||
| 9F-2978 | [3] | NUT (weld) | ||
| 9. | 2D-6416 | [2] | WASHER | |
| 10. | 4B-3573 C | [2] | SETSCREW | |
| 1B-2578 C | [2] | NUT | ||
| 11. | 7B-6473 | [1] | GASKET | |
| 12. | 8D-7801 | [1] | BRACKET | |
| 13. | 8D-7798 | [1] | SHAFT | |
| 14. | 0S-1591 | [1] | BOLT | |
| 15. | 1D-4717 | [3] | NUT | |
| 16. | 2G-4618 C | [1] | LEVER | |
| 17. | 1B-8704 | [2] | KEY | |
| 18. | 4M-0497 | [1] | NUT | |
| 19. | 4D-4064 | [1] | ROD END | |
| 20. | 4M-0496 | [1] | BOLT | |
| 21. | 5B-9079 | [2] | NUT | |
| 22. | 6D-0475 | [1] | LINK ASSEM. | |
| 23. | 2A-5546 | [1] | BOLT | |
| 1B-4330 | [1] | NUT | ||
| 24. | 1S-5927 | [1] | LEVER | |
| 25. | 4K-4726 | [1] | ROD END | |
| 26. | 3B-1915 | [1] | BOLT | |
| 27. | 6K-1898 C | [1] | SPRING | |
| 28. | 1A-2029 | [1] | BOLT | |
| C | INDICATES CHANGE | |||
#UEG0807S0038
2G-7340: CONTROL GP-GOVERNOR
2G7340 GOVERNOR CONTROL GROUP--Type 1
Serial No. 45P1742-Up
6D4397 Rotochamber and 4D7695 Valve parts are shown on Page 25B
AN ATTACHMENT
Serial No. 45P1742-Up
6D4397 Rotochamber and 4D7695 Valve parts are shown on Page 25B
AN ATTACHMENT
Parts for your 621B WHEEL TRACTOR:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1. | 3D-8938 | [2] | HOSE ASSEM. 101.60 cm(40 in.) | |
| 2. | 4S-7606 | [2] | UNION | |
| 3. | 4D-7695 Y | [1] | VALVE ASSEM. | |
| (Separate Illustration) | ||||
| 4. | 5M-6214 | [1] | PLUG | |
| 5. | 2G-3787 | [1] | BUTTON | |
| 6. | 8L-5008 | [1] | ELBOW | |
| 7. | 4D-2560 | [1] | UNION | |
| 8. | 3D-6931 | [1] | HOSE ASSEM. 142.24 cm(56 in.) | |
| 9. | 5H-4778 | [1] | UNION | |
| 10. | 6B-7639 | [1] | TEE | |
| 11. | 2D-0193 | [1] | UNION | |
| 12. | 2G-3775 | [1] | BLOCK | |
| 13. | 6D-4397 Y | [1] | ROTOCHAMBER GROUP | |
| (Separate Illustration) | ||||
| 14. | 5K-1928 | [1] | BOSS | |
| 15. | 0L-1143 | [1] | BOLT | |
| 3B-4506 | [1] | LOCKWASHER | ||
| 0L-1319 | [2] | WASHER | ||
| 1P-5395 | [1] | TUBE | ||
| 16. | 3D-7587 | [1] | UNION | |
| 17. | 3L-6521 | [1] | TEE | |
| Y | SEPARATE ILLUSTRATION | |||
#UEG0807S0039
2G-7340: CONTROL GP-GOVERNOR
2G7340 GOVERNOR CONTROL GROUP--Type 2
Serial No. 45P1742-Up
6N4397 Rotochamber and 4D7695 Valve parts are shown on Page 25B
AN ATTACHMENT
Serial No. 45P1742-Up
6N4397 Rotochamber and 4D7695 Valve parts are shown on Page 25B
AN ATTACHMENT
Parts for your 621B WHEEL TRACTOR:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1. | 3D-8938 | [2] | HOSE ASSEM. 101.60 cm(40 in.) | |
| 2. | 4S-7606 C | [3] | ELBOW | |
| 3. | 4D-7695 Y | [1] | VALVE GROUP | |
| (Separate Illustration) | ||||
| 4. | 5M-6214 | [1] | PLUG | |
| 5. | 2G-3787 | [1] | BUTTON | |
| 6. | 4H-6147 C | [1] | CONNECTOR | |
| 7. | 2R-1576 C | [1] | ADAPTER | |
| 8. | 3D-6931 | [1] | HOSE ASSEM. 142.24 cm(56 in.) | |
| 9. | 5H-4778 | [1] | UNION | |
| 10. | 6B-7639 | [1] | TEE | |
| 11. | 2D-0193 | [1] | UNION | |
| 12. | 2G-3775 | [1] | BLOCK | |
| 13. | 6D-4397 Y | [1] | ROTOCHAMBER GROUP | |
| (Separate Illustration) | ||||
| 14. | 5K-1928 | [1] | BOSS | |
| 15. | 0L-1143 | [1] | BOLT | |
| 3B-4506 | [1] | LOCKWASHER | ||
| 0L-1319 | [2] | WASHER | ||
| 1P-5395 | [1] | TUBE | ||
| 16. | 3D-7587 | [1] | UNION | |
| 17. | 2D-7325 C | [1] | TEE | |
| 18. | 5H-4778 C | [1] | ELBOW | |
| C | INDICATES CHANGE | |||
| Y | SEPARATE ILLUSTRATION | |||
Information:
FUEL SYSTEM
LINES GP-FUEL
Special Instruction
Repair Of Precombustion Chamber And Direct Injection Adapter Seating Surfaces{1101}
Repair Of Precombustion Chamber And Direct Injection Adapter Seating Surfaces{1101}
Repair Of Precombustion Chamber And Direct Injection Adapter Seating Surfaces{1101}
Testing Flat-Seat Fuel Injection Valves Using The 5P4150 Nozzle Testing Group{0782, 1254}
Testing Flat-Seat Fuel Injection Valves Using The 5P4150 Nozzle Testing Group{0782, 1254}
Testing Flat-Seat Fuel Injection Valves Using The 5P4150 Nozzle Testing Group{0782, 1254}
Specifications
Fuel Injection Nozzle And Adapter (Later Engines)<BR> New Scroll Fuel System
3406 ENGINE FOR CATERPILLAR BUILT MACHINES
3406 ENGINE FOR CATERPILLAR BUILT MACHINES
Fuel Injection Nozzle And Adapter (Earlier Engines)<BR> New Scroll Fuel System
3406 ENGINE FOR CATERPILLAR BUILT MACHINES
3406 ENGINE FOR CATERPILLAR BUILT MACHINES
Tool Operating Manual
Using the 4C-6090 Multichannel Temperature Selector Group{0599, 0701, 0706, 1251, 1254, 1290, 1713}
Using the 4C-6090 Multichannel Temperature Selector Group{0599, 0701, 0706, 1251, 1254, 1290, 1713}
Using the 4C-6090 Multichannel Temperature Selector Group{0599, 0701, 0706, 1251, 1254, 1290, 1713}
Disassembly and Assembly
Service Magazine
Identification Of Fuel Injection Lines And Nozzle Bodies For Different Combustion Systems{1252,1254}
1980/02/25
1980/02/25
Inspection And Test Procedures To Follow When Fuel Ratio Control Does Not Operate Correctly{1278}
1981/01/19
1981/01/19
New Compression Washers (Gas Seals) Used On 7000 Series Fuel Injection Nozzles{1254,1250}
1985/04/01
1985/04/01




