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208-9490 GEAR GP-FRONT S/N TXG3047-UP 621B WHEEL TRACTOR


BASIC ENGINE
GEAR GP
AIR COMPRESSOR GP
HOUSING GP-FLYWHEEL
GEAR GP
ENGINE ARRANGEMENT
CONVERSION GP-ENGINE
BASIC ENGINE
LIFTING GP-ENGINE
VALVE MECHANISM GP


BASIC ENGINE

GEAR GP
 

#SEBP43800060
 

208-9490: GEAR GP-FRONT

208-9490 GEAR GP-FRONT
S/N TXG3047-UP
i05328589 SEBP4380
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Parts for your 621B WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 0S-1571 [1] BOLT (3/8-16X1.75-IN)  
2. 2J-3118 [5] BOLT-LOCKING (3/8-16X1.25-IN)  
3. 5P-4142 [2] BOLT-LOCKING (3/8-16X1.5-IN)  
4. 1B-8705 [1] KEY-WOODRUFF  
5. 1P-7346 [1] WASHER-HARD (10.2X35X6-MM THK)  
6. 126-1756 [10] BOLT-LOCKING (5/16-18X0.875-IN)  
7. 112-9217 [1] PLATE-THRUST  
8. 130-4701 [1] GEAR AS (56-TEETH)  
  130-4698 [1] BUSHING  
9. 151-5966 [1] SHAFT AS-STUB  
  6I-3623 [1] DOWEL  
10. 6I-3624 [2] PLATE-THRUST  
11. 6I-3625 [1] GEAR AS (71-TEETH)  
  101-8468 [1] BUSHING  
12. 149-9107 [1] GEAR AS-CLUSTER (105, 63-TEETH)  
  1B-8705 [1] KEY-WOODRUFF  
  6I-4582 [1] GEAR (63-TEETH)  
  131-7123 [1] BUSHING  
  149-9106 [1] GEAR-CLUSTER (105-TEETH)  
13. 197-4971 [1] SHAFT-STUB  
14. 158-3416 [1] SHAFT-STUB  
15. 031-3185 [6] BOLT-12 POINT HEAD (5/8-11X3-IN)  
16. 149-9110 [1] GEAR-OIL PUMP DRIVE (69-TEETH)  
17. 9S-8752 [10] NUT-FULL (3/8-16-THD)  
18. 9X-6458 [12] WASHER-HARD (10.2X22.5X3-MM THK)  
19. 117-8801 [1] SEAL-O-RING  
20. 5E-8771 [1] SEAL-O-RING  
21. 159-1533 [1] PLATE-SEALING  
22. 159-8524 [1] ADAPTER AS  
  6V-3677 [1] DOWEL  
23. 102-5861 [1] PLATE-THRUST  
24. 107-0583 [3] BOLT-LOCKING (1/4-20X0.87-IN)  
25. 353-0186 CY [1] GEAR GP-CAMSHAFT  
  C   CHANGE FROM PREVIOUS TYPE
  Y   SEPARATE ILLUSTRATION
 

#SEBP43800061
 

257-4912: GOVERNOR GP-AIR COMPRESSOR

257-4912 GOVERNOR GP-AIR COMPRESSOR
S/N TXG3047-UP; LHX14535-UP
i02178238 SEBP4380
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Parts for your 621B WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4N-9679 [1] GOVERNOR AS-AIR COMPRESSOR  
  2S-2923 J [1] COVER AS  
  2K-8198 [1] SEAL-O-RING  
2. 5F-5434 [1] VALVE AS-VENT (GOVERNOR AIR COMPRESSOR)  
3. 6L-1883 [1] GASKET  
4. 1D-4540 [2] BOLT (5/16-18X2.75-IN)  
5. 8T-6764 [3] PLUG-PIPE (1/8-27-THD)  
6. 9M-1974 [2] WASHER-HARD (8.8X16X2-MM THK)  
   
    AVAILABLE REPAIR KIT(S):
  9M-0402 J [1] KIT-GOVERNOR OVERHAUL (AIR COMPRESSOR)  
    (INCLUDES COVER, GROMMET, RING, GASKET, FILTER, SPRING, & VALVE)
  J   KIT MARKED J INCLUDES PART(S) MARKED J
 

#SEBP43800062
 

171-3809: HOUSING GP-FLYWHEEL

171-3809 HOUSING GP-FLYWHEEL
S/N LHX14535-19117
i01951668 SEBP4380
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Parts for your 621B WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 155-5619 [1] GASKET  
2. 171-3808 [1] HOUSING AS-FLYWHEEL  
  1W-3136 [1] BAFFLE  
3. 165-3929 [8] BOLT (3/8-16X1.5-IN)(MARKED S)  
4. 5M-2894 [15] WASHER-HARD (10.2X18.5X2.5-MM THK)  
5. 5J-5793 [9] BOLT-12 POINT HEAD (1/2-13X2-IN)(MARKED Z)  
6. 5P-8245 [9] WASHER-HARD (13.5X25.5X3-MM THK)  
7. 8T-6765 [2] PLUG-PIPE (1/4-18-THD)  
8. 5F-0304 [3] PLUG (FLYWHEEL HOUSING)  
9. 7X-7731 [3] PLUG-PIPE (3/4-14-THD)  
10. 165-3934 [2] BOLT (3/8-16X2.75-IN)(MARKED X)  
11. 2A-1162 [3] GASKET  
12. 165-3931 [5] BOLT (3/8-16X1.75-IN)(MARKED Y)  
13. 142-5868 C [1] SEAL-CRANKSHAFT (REAR)  
  C   CHANGE FROM PREVIOUS TYPE
 

#SEBP43800063
 

171-3809: HOUSING GP-FLYWHEEL

171-3809 HOUSING GP-FLYWHEEL
S/N TXG3074-UP; LHX19118-UP
i03135408 SEBP4380
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Parts for your 621B WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 155-5619 [1] GASKET  
2. 171-3808 [1] HOUSING AS-FLYWHEEL  
  1W-3136 [1] BAFFLE  
3. 165-3929 [8] BOLT (3/8-16X1.5-IN)(MARKED S)  
4. 5M-2894 [15] WASHER-HARD (10.2X18.5X2.5-MM THK)  
5. 5J-5793 [9] BOLT-12 POINT HEAD (1/2-13X2-IN)(MARKED Z)  
6. 5P-8245 [9] WASHER-HARD (13.5X25.5X3-MM THK)  
7. 8T-6765 [2] PLUG-PIPE (1/4-18-THD)  
8. 5F-0304 [3] PLUG (FLYWHEEL HOUSING)  
9. 7X-7731 [3] PLUG-PIPE (3/4-14-THD)  
10. 165-3934 [2] BOLT (3/8-16X2.75-IN)(MARKED X)  
11. 2A-1162 [3] GASKET  
12. 165-3931 [5] BOLT (3/8-16X1.75-IN)(MARKED Y)  
13. 319-0785 CY [1] SEAL GP-CRANKSHAFT (REAR)(FLYWHEEL HOUSING)  
  C   CHANGE FROM PREVIOUS TYPE
  Y   SEPARATE ILLUSTRATION
 

#SEBP43800064
 

279-4453: HOUSING GP-FRONT

279-4453 HOUSING GP-FRONT
S/N TXG3074-UP; LHX14535-UP
i02544297 SEBP4380
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Parts for your 621B WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 175-1483 C [1] HOUSING AS-FRONT  
  3E-8044 [1] STUD (1/2-13X2.95-IN)  
2. 7C-1445 [1] COVER  
3. 2B-2695 [2] BOLT (5/16-18X0.875-IN)  
4. 9M-1974 [2] WASHER-HARD (8.8X16X2-MM THK)  
5. 5P-4255 [8] BOLT-LOCKING (3/8-16X1-IN)  
6. 5M-2894 [29] WASHER-HARD (10.2X18.5X2.5-MM THK)  
7. 061-9455 [1] SEAL-O-RING  
8. 0S-1588 [10] BOLT (3/8-16X1.25-IN)  
9. 353-9979 Y [1] PLATE AS-FRONT HOUSING  
10. 155-9524 [1] SEAL-INTEGRAL  
11. 166-9144 [1] GASKET  
12. 0L-2070 [1] BOLT (3/8-16X2.25-IN)  
13. 0T-0055 [7] BOLT (3/8-16X4.25-IN)  
14. 9S-8752 [1] NUT-FULL (3/8-16-THD)  
15. 6I-3968 [1] BRACKET-SUPPORT  
16. 0S-1591 [2] BOLT (3/8-16X1.5-IN)  
  C   CHANGE FROM PREVIOUS TYPE
  Y   SEPARATE ILLUSTRATION
 

#SEBP43800065
 

455-1754: KIT-ENGINE CONVERSION

455-1754 KIT-ENGINE CONVERSION -REPOWER
S/N 2GB1-UP; 45P1-UP; 46P1-UP
PROVIDES A BREAKDOWN OF THE SERVICEABLE PARTS REQUIRED FOR THE REPOWER. EXCLUDING THE ENGINE AND OPTIONAL GROUPS
PART OF 308-7658 CONVERSION AR-MACHINE
i05754320 SEBP4380
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Parts for your 621B WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  4L-9337 [6] BOLT (3/8-16X1.5-IN)  
  5P-1075 [14] WASHER-HARD (10.2X22.5X3-MM THK)  
  5S-7379 [8] BOLT (3/8-16X0.875-IN)  
  7X-7729 [12] WASHER (11X25X3-MM THK)  
  8T-4136 M [12] BOLT (M10X1.5X25-MM)  
  244-5400 [1] SPIDER AS-FAN (8-BLADE)  
  310-8580 [4] GUARD AS-FAN  
    (EACH INCLUDES)
  1F-0750 [2] NUT-WELD (3/8-16-THD)  
  6N-8599 [2] CLIP  
   
    (ABOVE PARTS ARE PART OF FAN GROUP 225-4249)
   
  3S-2093 [1] STRAP-CABLE  
  5P-5956 J SEAL (11-DM)  
  5P-7211 J SEAL (21-DM)  
  5P-9299 [3] CLIP (LOOP)  
  6K-0137 [8] BOLT-LOCKING (5/8-11X2-IN)  
  7M-8485 [1] SEAL-O-RING  
  7X-0515 [8] WASHER-HARD (17X35X5-MM THK)  
  7X-7729 [4] WASHER (11X25X3-MM THK)  
  8C-3681 E HOSE (174-CM)  
  8T-4121 [112] WASHER-HARD (11X21X2.5-MM THK)  
  8T-4136 M [100] BOLT (M10X1.5X25-MM)  
  8T-4137 M [4] BOLT (M10X1.5X20-MM)  
  8T-4195 M [8] BOLT (M10X1.5X30-MM)  
  8T-6466 M [4] BOLT (M10X1.5X60-MM)  
  8T-6936 D SEAL (220-M)  
  9Y-9236 [1] GAUGE-SIGHT  
  115-6433 [4] WASHER (11X50X6-MM THK)  
  120-5281 E SEAL (72-CM)  
  121-3307 [4] MOUNT AS-RESILIENT  
  153-9516 E SEAL (60-CM)  
  223-5073 [2] CORE AS-RADIATOR  
  223-5086 [1] CORE AS-RADIATOR  
  229-5438 [1] TANK AS-COOLANT  
  6B-7246 [1] BOSS (3/8 NPTX0.5-IN)  
  8T-3490 M [16] NUT-WELD (M10X1.5-THD)  
  229-5442 [1] CHANNEL AS  
  8D-3508 [1] BOSS (3/8-16X1-IN)  
  8T-3490 M [24] NUT-WELD (M10X1.5-THD)  
  9D-9416 [1] BLOCK  
  234-2493 [1] TANK AS-COOLANT  
  7T-1099 [1] LINK  
  8N-8846 [1] NECK-FILLER  
  8T-3490 M [16] NUT-WELD (M10X1.5-THD)  
  235-7036 [1] CHANNEL AS  
  8T-3490 M [30] NUT-WELD (M10X1.5-THD)  
  236-8140 [1] CHANNEL AS  
  8T-3490 M [10] NUT-WELD (M10X1.5-THD)  
  236-8141 [1] CHANNEL AS  
  8T-3490 M [10] NUT-WELD (M10X1.5-THD)  
  236-8142 [1] CHANNEL  
  237-2555 [1] AFTERCOOLER AS-AIR  
  237-5863 [2] BRACKET AS  
    (EACH INCLUDES)
  8T-3490 M [4] NUT-WELD (M10X1.5-THD)  
  237-5866 [1] CHANNEL  
  247-0152 [1] PLATE  
  272-5437 [4] SEAL-RADIATOR (DUROMETER, NARROW)  
  272-5438 [2] SEAL-RADIATOR (DUROMETER, WIDE)  
  294-3342 [1] CAP-RADIATOR  
  310-8571 [1] SHIELD AS-FAN  
  8T-3490 M [6] NUT-WELD (M10X1.5-THD)  
  310-8572 [1] SHIELD AS-FAN  
  8T-3490 M [4] NUT-WELD (M10X1.5-THD)  
  310-8574 [1] SHIELD AS-FAN  
  8T-3490 M [5] NUT-WELD (M10X1.5-THD)  
  310-8575 [1] SHIELD AS-FAN  
  8T-3490 M [5] NUT-WELD (M10X1.5-THD)  
  310-8586 [2] PLATE-EDGE  
  312-2052 [1] PLATE AS  
  1F-0750 [2] NUT-WELD (3/8-16-THD)  
  322-3186 [1] BRACKET  
  322-3187 [1] BRACKET  
  344-5675 M [4] NUT (M10X1.5-THD)  
   
    (ABOVE PARTS ARE PART OF RADIATOR GROUP 225-4243)
   
  102-8803 [1] KIT-RECEPTACLE (3-PIN)  
  155-2270 [4] KIT-CONNECTING PLUG (2-PIN)  
  174-0503 [1] KIT-CONNECTING PLUG (3-PIN)  
  245-7434 [1] KIT-CONNECTING PLUG (10-PIN)  
  318-1181 Y [1] SENSOR GP-SPEED (MAGNETIC)  
   
    (ABOVE PARTS ARE PART OF ELECTRICAL CONVERSION GROUP 308-7660)
   
  0S-1597 [5] BOLT (1/4-28X1-IN)  
  1S-7252 [1] TERMINAL-CABLE (00-GA, 3/8-IN SCREW)  
  3E-5169 [2] GUARD-SWITCH  
  3E-7775 [1] HOUSING AS  
  3R-8797 [8] SCREW & WASHER AS (3/8-24X0.72-IN)  
  3S-6050 [1] TERMINAL AS-BATTERY (NEGATIVE)  
  3T-3422 [1] WIRE AS  
  3T-3434 [6] PLUG  
  4D-5882 [1] CABLE AS  
  1M-6119 [2] BOLT (5/16-18X1.375-IN)  
  1M-6120 [2] NUT (5/16-18-THD)  
  4M-1831 [1] PLUG-LEVER HOUSING  
  4W-0483 Y [1] GAUGE GP-COOLANT TEMPERATURE (24-VOLT)  
  5K-0366 [1] CABLE AS  
  1M-6119 [1] BOLT (5/16-18X1.375-IN)  
  1M-6120 [1] NUT (5/16-18-THD)  
  5L-7442 [1] SENDING UNIT (24-VOLT)  
  5S-7349 [4] BOLT (1/4-20X0.5-IN)  
  6D-0726 [6] WIRE AS  
  6N-0672 [1] GAUGE AS-FUEL PRESSURE  
  3L-8187 [3] LOCKWASHER  
  4B-5324 [3] WASHER (3.9X9.6X1.2-MM THK)  
  6V-8368 [3] NUT (6-32-THD)  
  6V-8377 [2] NUT (8-32-THD)  
  9B-7233 [2] LOCKWASHER  
  6N-0673 [1] GAUGE-ENG OIL PRESSURE  
  6N-3826 [1] DRIVE AS-MOTOR  
  6T-3642 [1] CIRCUIT BREAKER AS (10-AMPERE)  
  6V-8376 [2] SCREW-MACHINE (8-32X0.25-IN)  
  9B-7233 [2] LOCKWASHER  
  6T-3643 [1] CIRCUIT BREAKER AS (15-AMPERE)  
  6V-8376 [2] SCREW-MACHINE (8-32X0.25-IN)  
  9B-7233 [2] LOCKWASHER  
  6V-8188 [4] NUT (1/2-13-THD)  
  6V-8378 [3] NUT (10-32-THD)  
  7L-2894 [1] GASKET  
  7N-5274 [1] COVER AS-TERMINAL (BLACK)  
  8L-8413 [1] STRAP-CABLE (WHITE)  
  7T-3267 [1] KIT-BUSHING (STARTING MOTOR)  
  7T-3268 [1] KIT-LEVER (STARTING MOTOR)  
  7T-3276 [1] ARMATURE AS (24-VOLT)  
  7T-3277 [1] COIL AS-FIELD  
  7T-3278 [1] HOLDER AS-BRUSH  
  7T-3279 [1] HOUSING AS  
  7T-3451 [1] KIT-INSULATOR (STARTING MOTOR)  
  7T-3454 [1] INSULATOR  
  7T-3974 [1] HOUSING AS-DRIVE  
  7X-0562 [4] WASHER-HARD (13.5X19X0.8-MM THK)  
  7X-2058 [2] LAMP (24-VOLT)  
  7X-3373 [6] BOLT (5/16-18X0.88-IN)  
  8C-3655 [1] KIT-BRUSH (STARTING MOTOR)  
  8F-1434 [2] LOCKWASHER  
  8H-1141 [4] SHOE-POLE  
  8S-2332 [3] BOLT-12 POINT HEAD (5/8-11X1.75-IN)  
  8T-0328 [3] WASHER-HARD (5.5X10X1-MM THK)  
  8T-4205 [4] WASHER-HARD (7.2X14.5X2-MM THK)  
  8T-8566 [1] TERMINAL AS  
  8T-8569 [1] INSULATOR-TERMINAL  
  8T-8737 [93] PLUG-SEAL  
  8T-9884 [1] KIT-INSULATOR (STARTING MOTOR)  
  9F-3099 [1] SWITCH GP-MAGNETIC (24-VOLT)  
  3B-4501 [2] LOCKWASHER  
  3F-9556 [2] LOCKWASHER  
  6V-8186 [2] NUT-FULL (5/16-24-THD)  
  6V-8377 [2] NUT (8-32-THD)  
  9F-4337 [1] WIRE AS  
  9P-0719 [1] GROMMET  
  9W-1491 [1] KIT-SERVICE METER  
  9W-1951 [1] RECEPTACLE-CONNECTOR (9-PIN)  
  9X-0141 [1] PLUG AS-CONNECTOR (40-PIN)  
  3E-4367 [1] RING-RETAINING  
  3E-8557 M [1] BOLT (M5X0.8X39.37-MM)  
  9X-3490 [2] SEAL-CONNECTOR (40-PIN)  
  9X-1343 [1] RECEPTACLE AS-CONNECTOR (40-PIN)  
  9X-3401 [37] PIN-CONNECTOR (16-GA TO 18-GA)  
  9X-3402 [45] SOCKET-CONNECTOR (16-GA TO 18-GA)  
  9X-4824 [1] COVER-STARTING MOTOR  
  9Y-6089 [1] GASKET  
  030-2010 [2] SENDER AS-PRESSURE  
    (EACH INCLUDES)
  4B-2049 [1] NUT (10-32-THD)  
  8F-1434 [1] LOCKWASHER  
  8T-0328 [1] WASHER-HARD (5.5X10X1-MM THK)  
  102-8806 [1] KIT-RECEPTACLE (8-PIN)  
  107-1983 [2] LAMP (24-VOLT)  
  107-1984 [2] SOCKET-LAMP  
  110-7887 [1] SWITCH AS-START (KEY)  
  7T-6799 [1] NUT-MOUNTING (1-32-THD)  
  8T-8729 [4] PIN-CONNECTOR (16-GA TO 18-GA)  
  102-8804 [1] KIT-RECEPTACLE (4-PIN)  
  113-4799 Y [1] PEDAL GP-GOVERNOR  
  123-9294 [1] LAMP (24-VOLT)  
  124-2466 Y [1] TACHOMETER GP-ELECTRIC  
  126-1767 [4] PIN-CONNECTOR (14-GA TO 16-GA)  
  126-1774 [1] COVER-CONNECTOR  
  134-2540 [1] RECEPTACLE AS-CONNECTOR  
  139-2116 Y [1] SWITCH GP-TOGGLE (GROUND LEVEL SHUTDOWN)  
  155-2255 [1] KIT-CONNECTING PLUG (12-PIN)  
  155-2260 [2] KIT-CONNECTING PLUG (3-PIN)  
  159-8050 E CABLE (00-GA, BLACK)(320-CM)  
  160-7689 [1] PLUG AS-CONNECTOR (70-PIN)  
  159-9322 [1] SEAL-O-RING  
  165-5970 Y [1] SWITCH GP-TOGGLE  
  166-7721 [1] SWITCH AS-PRESSURE  
  8T-8729 [2] PIN-CONNECTOR (16-GA TO 18-GA)  
  171-2208 [1] CIRCUIT BREAKER AS (60-AMPERE)  
  1H-3244 [2] LOCKWASHER  
  4E-5724 [2] WASHER (7X12X1-MM THK)  
  8T-0122 [2] NUT-FULL (1/4-28-THD)  
  180-9900 [1] CAP AS  
  5P-7958 [1] SLEEVE-CABLE SPLICE  
  8C-6354 [1] CAP-RECEPTACLE (ET CONNECTOR)  
  179-9392 [1] LANYARD  
  207-1556 Y [1] STARTING MOTOR GP-ELECTRIC (24-VOLT)  
  229-2580 [1] SWITCH AS-ROCKER (24-VOLT)  
  [1] PLUG AS (8-PIN)  
  246-0479 Y [1] HARNESS AS-FUEL TANK  
  249-5293 Y [1] HARNESS AS-SENSOR  
  283-1107 [1] KIT-CONNECTOR (STARTING MOTOR)  
  329-5704 [1] SENDER AS-TEMPERATURE  
  4B-2049 [1] NUT (10-32-THD)  
  8F-1434 [1] LOCKWASHER  
  8T-0328 [1] WASHER-HARD (5.5X10X1-MM THK)  
  350-0664 [1] SENSOR GP-PRESSURE  
  376-4353 [1] KIT-SOLENOID (24-VOLT)  
   
    (ABOVE PARTS ARE PART OF ELECTRIC MOTOR STARTING GROUP 7W-7765)
   
  1P-3705 [4] SEAL-RECTANGULAR  
  1P-4578 [4] FLANGE-HALF  
  1P-4579 [4] FLANGE-HALF  
  1P-5762 [4] FLANGE-HALF  
  4J-0524 [2] SEAL-O-RING  
  4T-6149 [1] SPACER (30-MM THK)  
  5P-2566 [8] BOLT (1/2-13X1.5-IN)  
  5P-8444 [2] GROMMET (37-MM ID)  
  6V-8188 [1] NUT (1/2-13-THD)  
  7X-0311 [8] BOLT (7/16-14X2.25-IN)  
  7X-0326 [1] BOLT (1/2-13X3-IN)  
  8T-4223 [19] WASHER-HARD (13.5X25.5X3-MM THK)  
  8T-4835 [8] BOLT (1/2-13X2-IN)  
  8T-5360 [8] WASHER (12X22.5X2.5-MM THK)  
  8T-8917 [1] BOLT (1/2-13X1.25-IN)  
  9K-2522 [1] CLIP  
  122-6867 G HOSE (38-IN)  
  122-6874 G HOSE-HYDRAULIC (154-IN)  
  124-1891 [1] COUPLING-PERMANENT  
  124-2081 [1] COUPLING-PERMANENT  
  124-2057 [2] COUPLING-PERMANENT  
  124-2093 [1] COUPLING-PERMANENT  
  166-0551 [1] TUBE AS  
  166-0552 [1] TUBE AS  
  183-5180 [1] COUPLING-PERMANENT  
  183-6585 [1] PLATE AS  
  1F-0748 [1] NUT-WELD (1/2-13-THD)  
  8P-2813 [1] BOSS (3/8-16-THD)  
   
    (ABOVE PARTS ARE PART OF POWER TRAIN CONVERSION GROUP 308-7662)
   
  4L-9337 [2] BOLT (3/8-16X1.5-IN)  
  6I-3568 [1] SUPPORT  
  6V-4432 [2] BOLT (1/2-13X4-IN)  
  7S-8767 [2] GASKET  
  7W-6459 Y [1] CORE GP-OIL COOLER  
  7X-0334 [1] BOLT (1/2-13X5-IN)  
  8C-4436 [7] BOLT (1/2-13X1.375-IN)  
  8T-4223 [3] WASHER-HARD (13.5X25.5X3-MM THK)  
  8T-4896 [2] WASHER-HARD (10.2X18.5X2.5-MM THK)  
  8T-8919 [2] BOLT (1/2-13X1.75-IN)  
   
    (ABOVE PARTS ARE PART OF TRANSMISSION COOLER GROUP 232-4935)
   
  1D-4614 [2] BOLT (3/4-10X5-IN)  
  1P-4278 [1] CLAMP-HOSE  
  2A-4639 [4] BOLT (3/8-16X1.625-IN)  
  2D-7325 [1] TEE-PIPE  
  2M-9780 [4] SEAL-O-RING  
  2P-4305 [3] GASKET  
  2W-8144 [3] BOSS (5/16-18-THD)  
  3B-1915 [4] BOLT (3/8-16X1.375-IN)  
  3B-6768 [2] BUSHING-REDUCER  
  3D-2824 [2] SEAL-O-RING  
  3G-4005 [2] LINK  
  3J-1907 [1] SEAL-O-RING  
  3K-0360 [3] SEAL-O-RING  
  3S-8664 [3] CLIP (LOOP)  
  4J-0522 [4] SEAL-O-RING  
  4K-1388 [2] SEAL-O-RING  
  4L-6454 [4] BOLT (3/8-16X1-IN)  
  4P-7581 [20] CLIP (LADDER)  
  5K-5338 [5] CLIP (LOOP)  
  5K-9090 [2] SEAL-O-RING  
  5L-5502 [1] FITTING  
  5M-2894 [8] WASHER-HARD (10.2X18.5X2.5-MM THK)  
  5P-0059 [2] BOLT (5/16-18X6-IN)  
  5P-1075 [1] WASHER-HARD (10.2X22.5X3-MM THK)  
  423-1982 E HOSE (242-CM)  
  5P-8248 [2] WASHER-HARD (20X36.5X3.5-MM THK)  
  5P-8942 [4] SEAL-O-RING  
  5S-7379 [6] BOLT (3/8-16X0.875-IN)  
  6V-8398 [3] SEAL-O-RING  
  6V-8624 [1] ELBOW  
  6V-8634 [2] CONNECTOR  
  6V-8636 [1] CONNECTOR  
  6V-8637 [2] CONNECTOR  
  6V-8638 [1] CONNECTOR  
  6V-8801 [3] NUT (3/8-16-THD)  
  6V-9746 [2] SEAL-O-RING  
  6Y-2065 [2] MOUNT AS  
    (EACH INCLUDES)
  9W-9916 [1] PAD  
  9W-9917 [2] RING  
  9W-9925 [1] CUP  
  7J-8611 [1] ELBOW-PIPE  
  7X-0290 [1] BOLT (3/8-16X3.5-IN)  
  7X-0579 [6] WASHER-HARD (8.8X25.5X2-MM THK)  
  8C-6959 E HOSE (102-CM)  
  8D-3508 [3] BOSS (3/8-16X1-IN)  
  8F-9836 [6] BOSS (3/8-16-THD)  
  8J-7844 [1] ADAPTER  
  8L-2779 [2] SEAL-O-RING  
  8T-0252 [1] ELBOW  
  8T-3285 [1] ADAPTER  
  8T-4896 [14] WASHER-HARD (10.2X18.5X2.5-MM THK)  
  8T-5464 [1] VALVE-BALL  
  8T-8902 [1] ADAPTER-TEE  
  8T-8912 [1] BOLT (5/16-18X2.25-IN)  
  8T-8986 [2] ELBOW  
  8T-9655 [8] MOUNT-ISOLATION  
  9M-9224 [1] SPACER (0.406X0.75X1.688-IN THK)  
  9S-8006 [2] PLUG (7/8-14-THD)  
  9W-6582 [2] SLEEVE  
  9W-6584 [2] WASHER (20.5X114X10-MM THK)  
  9W-9930 [2] MOUNT AS  
  033-6042 [1] SEAL-O-RING  
  106-2105 [1] ELBOW  
  122-6869 G HOSE-HYDRAULIC (603-IN)  
  122-6870 G HOSE-HYDRAULIC (26-IN)  
  122-6872 G HOSE-HYDRAULIC (52-IN)  
  122-6873 G HOSE-HYDRAULIC (154-IN)  
  124-2054 [1] COUPLING-PERMANENT  
  124-2080 [1] COUPLING-PERMANENT  
  124-2103 [2] COUPLING-PERMANENT  
  124-2114 [3] COUPLING  
  124-2116 [2] COUPLING-PERMANENT  
  124-2117 [2] COUPLING  
  124-2130 [3] COUPLING  
  124-2137 [1] COUPLING  
  124-2138 [2] COUPLING-PERMANENT  
  124-2153 [1] COUPLING  
  124-2160 [1] COUPLING-PERMANENT  
  130-5300 [11] CLIP  
  139-2875 [1] COVER-FILTER BASE  
  147-0382 [1] COVER-FILTER BASE  
  154-0096 [1] COUPLING-PERMANENT  
  155-6125 [2] WASHER (20.5X130X10-MM THK)  
  191-1782 [1] SPACER (8.5X12.7X38.2-MM THK)  
  198-0961 [1] ADAPTER-PIPE  
  217-8342 Y [1] PUMP GP-FUEL PRM & WATER SEP  
  232-1374 [1] BRACKET  
  232-1376 [2] SPACER (8.5X12.7X139.1-MM THK)  
   
    (ABOVE PARTS ARE PART OF ENGINE INSTALLATION GROUP 308-7664)
   
  2T-1925 [1] ELBOW  
  5D-1026 [1] CLAMP-BAND  
  5M-3062 [1] BOLT (3/8-16X0.75-IN)  
  5P-0767 E HOSE (25-CM)  
  6V-8397 [4] SEAL-O-RING  
  8C-6869 [3] CONNECTOR  
  8F-8151 [1] VALVE-SHUTOFF  
  8M-2773 CLIP (LOOP)  
  8T-4896 [1] WASHER-HARD (10.2X18.5X2.5-MM THK)  
  9B-4179 [2] HOSE  
  002-5299 [1] TEE-PIPE  
  122-6869 G HOSE-HYDRAULIC (24-IN)  
  124-2114 [2] COUPLING  
  124-2130 [1] COUPLING  
  124-2160 [1] COUPLING-PERMANENT  
  154-9024 [1] VALVE-SAMPLING  
  157-0670 [1] CAP-DUST  
  166-6138 G HOSE (19-IN)  
  209-4573 [4] CLAMP-T BOLT  
  209-4579 [2] CLAMP  
  228-0509 [1] HOSE  
  232-7523 [1] TUBE AS  
   
    (ABOVE PARTS ARE PART OF ACCESSORY WATER LINES 222-0798)
   
  5P-4116 [4] WASHER-HARD (8.8X20.5X2-MM THK)  
  7X-0347 [4] BOLT (5/8-11X2.25-IN)  
  7X-2538 M [3] BOLT (M8X1.25X100-MM)  
  7X-7729 [4] WASHER (11X25X3-MM THK)  
  8T-4121 [1] WASHER-HARD (11X21X2.5-MM THK)  
  8T-4122 [4] WASHER-HARD (17X32X3.5-MM THK)  
  8T-4172 M [1] BOLT (M10X1.5X80-MM)  
  8T-4198 M [4] BOLT (M10X1.5X100-MM)  
  8T-4222 [3] WASHER-PLATED (11X32X2.5-MM THK)  
  8T-7352 M [1] BOLT (M8X1.25X160-MM)  
  9X-2125 M [3] BOLT-LOCKING (M10X1.5X25-MM)  
  133-7023 [1] PULLEY AS-IDLER  
  151-2898 [1] SPACER (10.4X38.1X20-MM THK)  
  151-2900 M [1] BOLT (M10X1.5X54.25-MM)  
  166-6358 [1] COVER-DUST  
  183-5106 Y [1] COMPRESSOR GP-REFRIGERANT  
  228-8935 [1] PULLEY-CRANKSHAFT (8-GROOVE)  
  235-7133 Y [1] ALTERNATOR GP-CHARGING (24-VOLT, 80-AMPERE)  
  237-5688 [1] PULLEY (8-GROOVE)  
  278-4170 [1] GUARD  
  279-2589 [1] PULLEY AS-IDLER (8-GROOVE)  
  284-8443 [1] BRACKET AS  
  159-3042 M [3] NUT-WELD (M10X1.5-THD)  
  300-0056 [1] PLATE AS  
  329-8797 [1] BELT TENSIONER  
  341-4938 [1] BELT-SERPENTINE  
   
    (ABOVE PARTS ARE PART OF ACCESSORY DRIVE GROUP 222-0802)
   
  4L-6454 [2] BOLT (3/8-16X1-IN)  
  5P-1075 [6] WASHER-HARD (10.2X22.5X3-MM THK)  
  6L-3592 [4] STUD (3/8-16-THD)  
  6V-8801 [4] NUT (3/8-16-THD)  
  7X-0507 [1] WASHER-HARD (12X22.5X5-MM THK)  
  230-2176 [2] PLATE  
  230-2196 [1] SHIELD-HEAT (MANIFOLD, RH)  
  230-2197 [1] SHIELD-HEAT (TURBOCHARGER)  
  237-9879 [1] SHIELD-HEAT (MANIFOLD, LH)  
   
    (ABOVE PARTS ARE PART OF SHIELD GROUP 222-0796)
   
  1W-4564 [1] WASHER-RETAINING (17X54X25-MM THK)  
  2W-6280 [1] BRACKET AS-FAN  
  8N-8980 [1] SHAFT-FAN  
  5F-0149 [1] SEAL-O-RING  
  5M-6214 [1] PLUG (1/8-27 PTF)  
  5S-7383 [6] BOLT (3/8-16X1.75-IN)  
  6H-3956 [1] PIN  
  6H-3957 [2] BALL BEARING  
  6V-8188 [1] NUT (1/2-13-THD)  
  7X-7890 [1] BOLT (5/8-11X9.5-IN)  
  8B-7997 [2] BOLT-SOCKET HEAD (1/2-13X2-IN)  
  8B-8255 [1] SEAL-LIP TYPE  
  8N-8978 [1] SPACER (40X53.98X20-MM THK)  
  8N-8979 [1] SPACER (42X54X90-MM THK)  
  8N-8983 [1] HUB-FAN PULLEY  
  8T-2502 [6] BOLT (3/8-16X1.125-IN)  
  8T-4121 [2] WASHER-HARD (11X21X2.5-MM THK)  
  8T-4178 M [1] BOLT (M10X1.5X90-MM)  
  8T-4195 M [1] BOLT (M10X1.5X30-MM)  
  8T-4223 [4] WASHER-HARD (13.5X25.5X3-MM THK)  
  8T-4835 [4] BOLT (1/2-13X2-IN)  
  172-4738 [1] BELT TENSIONER  
  224-9775 [1] PULLEY AS-IDLER (14-GROOVE)  
  230-2186 [1] SUPPORT  
  246-4397 [1] ADAPTER  
  310-8513 [1] PULLEY-FAN  
  321-5169 [1] BELT-SERPENTINE  
   
    (ABOVE PARTS ARE PART OF FAN DRIVE GROUP 222-0794)
   
  0S-1588 [4] BOLT (3/8-16X1.25-IN)  
  2B-4229 [1] CLAMP-AIR CLEANER  
  4L-9337 [1] BOLT (3/8-16X1.5-IN)  
  5M-3062 [2] BOLT (3/8-16X0.75-IN)  
  6E-6549 [1] WASHER (11X27X6-MM THK)  
  7E-8630 [2] HOSE-AIR INLET  
  8C-3089 [1] SEAL-O-RING  
  8T-4896 [7] WASHER-HARD (10.2X18.5X2.5-MM THK)  
  101-3125 [1] GASKET (AIR INLET MANIFOLD)  
  109-4203 [1] ELBOW  
  127-0929 [1] CLAMP-V BAND  
  129-6400 [1] ADAPTER  
  186-2002 [1] HOSE  
  208-7448 [8] CLAMP  
  228-0507 [1] TUBE  
  236-8247 [1] TUBE  
  236-8248 [1] BRACKET AS  
  1F-0750 [1] NUT-WELD (3/8-16-THD)  
  245-3572 [1] HOSE  
   
    (ABOVE PARTS ARE PART OF AIR LINES GROUP)
   
  1K-6872 [1] LOCKNUT (1/2-13-THD)  
  5P-1075 [4] WASHER-HARD (10.2X22.5X3-MM THK)  
  5P-1076 [1] WASHER-HARD (13.5X30X4-MM THK)  
  6V-4432 [2] BOLT (1/2-13X4-IN)  
  7D-1649 [2] WASHER-HARD (13.5X32X5-MM THK)  
  7X-0291 [1] BOLT (3/8-16X3.75-IN)  
  8T-7062 [1] STUD-TAPERLOCK (1/2-13X55, 1/2-13X21-MM)  
  9F-8999 [3] BOLT (3/8-16X7-IN)  
  286-8249 [1] BRACE  
   
    (ABOVE PARTS ARE PART OF FRONT HOUSING BRACE GROUP 290-2230)
   
  1F-7958 [2] NUT-FULL (1/2-13-THD)  
  2B-0947 [2] BOLT (1/2-13X2.25-IN)  
  2M-0849 [2] WASHER-HARD (13.5X25.5X5-MM THK)  
  4K-0367 [4] NUT-FULL (5/8-11-THD)  
  5H-7292 [1] CLAMP  
  5H-8331 [1] GASKET  
  5N-2126 [1] CONNECTOR (THERMOCOUPLE)  
  5N-6147 [1] PIPE AS-EXHAUST  
  6L-2927 Y [1] ELBOW GP-EXHAUST  
  8S-1460 [1] CLAMP  
  8S-7261 [1] ADAPTER-EXHAUST  
  9S-8752 [2] NUT-FULL (3/8-16-THD)  
  9X-6380 [4] BOLT (5/8-11X1.5-IN)  
  199-5777 [1] TUBE AS  
   
    (ABOVE PARTS ARE PART OF AIR INLET & EXHAUST CONVERSION GROUP 308-7661)
   
  2N-2765 [2] BOLT-HIGH TEMPERATURE (3/8-16X1.75-IN)  
  2N-2766 [2] LOCKNUT (3/8-16-THD)  
  5L-8854 [2] RING-SEALING  
  9L-5839 [1] COUPLING-EXHAUST  
  255-6093 [1] SUPPORT-EXHAUST  
  354-2859 [1] SPACER  
   
    (ABOVE PARTS ARE PART OF CONNECTION GROUP 255-6092)
   
  0A-2926 [2] FITTING  
  1W-4142 [1] ELBOW  
  3B-8822 [1] ELBOW  
  4L-6454 [4] BOLT (3/8-16X1-IN)  
  6V-1363 D HOSE (1-M)  
  6V-8801 [4] NUT (3/8-16-THD)  
  7D-1728 [1] CLIP  
  7X-0592 [8] WASHER-HARD (10.2X32X5-MM THK)  
  7X-7729 [10] WASHER (11X25X3-MM THK)  
  8N-8741 [1] HOSE  
  8S-6823 [1] HOOD AS  
  8T-4136 M [2] BOLT (M10X1.5X25-MM)  
  8T-4185 M [2] BOLT (M10X1.5X50-MM)  
  8T-4186 M [1] BOLT (M10X1.5X40-MM)  
  8T-4195 M [2] BOLT (M10X1.5X30-MM)  
  8T-4196 M [1] BOLT (M10X1.5X35-MM)  
  8T-6703 [2] CLAMP-HOSE  
  9G-8140 [1] SPACER (10.5X25X15-MM THK)  
  138-4447 [1] BRACKET AS  
  3B-6487 [1] COUPLING (PIPE)  
  145-4211 [1] ADAPTER AS-FILTER  
  7J-0204 [1] SEAL-O-RING  
  145-4212 [1] INDICATOR-AIR FILTER CHANGE  
  198-4777 [1] WASHER-HARD (11X25X10-MM THK)  
  216-0069 [2] FITTING  
  233-8350 [2] CLAMP (T-BOLT)  
  233-8483 [4] CLAMP (BOLT SPRING)  
  236-8855 [1] HOSE  
  237-0388 [1] TUBE  
  237-0389 [1] HOSE  
  237-0401 [1] BODY AS-PRECLEANER  
  267-9771 [1] BRACKET AS  
  267-9772 [1] SUPPORT  
  267-9774 Y [1] AIR CLEANER GP  
  344-5675 M [4] NUT (M10X1.5-THD)  
   
    (ABOVE PARTS ARE PART OF AIR CLEANER GROUP 222-0797)
   
  1W-2491 [1] MUFFLER AS-EJECTOR  
  6F-7012 [2] STUD-TAPERLOCK (3/8-16X1.57-IN)  
   
    (ABOVE PARTS ARE PART OF MUFFLER GROUP 1W-4294)
   
  D   ORDER BY THE METER
  E   ORDER BY THE CENTIMETER
  G   ORDER BY THE INCH
  J   ORDER BY THE DECIMETER
  M   METRIC PART
  R   REMANUFACTURED PART MAY BE AVAILABLE
  Y   SEPARATE ILLUSTRATION
 

#SEBP43800066
 

111-2088: LIFTING GP-ENGINE

111-2088 LIFTING GP-ENGINE
S/N TXG3047-UP; LHX14535-UP
REAR, LOW PROFILE LIFTING EYE
i00478222 SEBP4380
  For full view, you need register

Parts for your 621B WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 109-9985 [1] EYE-LIFTING  
2. 0S-1594 [8] BOLT (3/8-16X1-IN)  
3. 5M-2894 [8] WASHER-HARD (10.2X18.5X2.5-MM THK)  
 

#SEBP43800067
 

127-0564: LIFTING GP-ENGINE

127-0564 LIFTING GP-ENGINE
S/N TXG3047-UP; LHX14535-UP
FRONT
i00516174 SEBP4380
  For full view, you need register

Parts for your 621B WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 127-0563 [1] EYE-LIFTING  
2. 0S-1595 [4] BOLT (1/2-13X1.25-IN)  
3. 5P-8245 [4] WASHER-HARD (13.5X25.5X3-MM THK)  
 

#SEBP43800068
 

148-7482: MECHANISM GP-FUEL PUMP & VALVE

148-7482 MECHANISM GP-FUEL PUMP & VALVE
S/N TXG3074-UP
Type 1
i03430060 SEBP4380
  For full view, you need register

Parts for your 621B WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 328-4237 CY [3] ROCKER ARM GP  
2. 348-7743 [12] BRIDGE-VALVE  
  C   CHANGE FROM PREVIOUS TYPE
  Y   SEPARATE ILLUSTRATION
 

#SEBP43800069
 

148-7482: MECHANISM GP-FUEL PUMP & VALVE

148-7482 MECHANISM GP-FUEL PUMP & VALVE
S/N TXG3074-UP
Type 2
i05766504 SEBP4380
  For full view, you need register

Parts for your 621B WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 437-3866 CY [3] ROCKER ARM GP  
2. 348-7743 [12] BRIDGE-VALVE  
  C   CHANGE FROM PREVIOUS TYPE
  Y   SEPARATE ILLUSTRATION
 

Information:

Engine News
Special Instruction
Installation Of Short Blocks And Crankshafts{1202, 1204, 1206}
Installation Of Short Blocks And Crankshafts{1202, 1204, 1206}
Procedure to Torque the Camshaft Gear{1210, 1212}
Procedure to Torque the Camshaft Gear{1210, 1212}
Specifications
Front (Timing) Gear Group
3406 ENGINE FOR CATERPILLAR BUILT MACHINES
Front (Timing) Gear Group (621B, 623B)
3406 ENGINE FOR CATERPILLAR BUILT MACHINES
Rear Gear Group (D8N)
3406 ENGINE FOR CATERPILLAR BUILT MACHINES
Idler Gear Shaft Pilot Bore
3406 ENGINE FOR CATERPILLAR BUILT MACHINES
Idler Gear Assembly(For Front Gear Group)
3406 ENGINE FOR CATERPILLAR BUILT MACHINES
Front Housing And Covers
3406 ENGINE FOR CATERPILLAR BUILT MACHINES
Gear Group (Front)
3406C Engines for Caterpillar Built Machines
Reuse And Salvage Guidelines
Reuse and Salvage for Gear Train and Gear Shafts on Engines {0679, 1151, 1162, 1206}
Reuse and Salvage for Gear Train and Gear Shafts on Engines {0679, 1151, 1162, 1206}
Testing and Adjusting
Gear Group (Front) - Time
3406E and 3456 Engines for Caterpillar Built Machines
Disassembly and Assembly
Crankshaft Front Seal
3406 VEHICULAR ENGINE FOR 621B & 623B TRACTORS
Crankshaft Front Seal Wear Sleeve
3406 VEHICULAR ENGINE FOR 621B & 623B TRACTORS
Timing Gear Cover
3406 VEHICULAR ENGINE FOR 621B & 623B TRACTORS
Timing Gears And Plate
3406 VEHICULAR ENGINE FOR 621B & 623B TRACTORS
Gear Group (Front) - Remove
3406E and 3456 Engines for Caterpillar Built Machines
Gear Group (Front) - Install
3406E and 3456 Engines for Caterpillar Built Machines
Gear Group (Front) - Remove
C15 and C18 Engines for Caterpillar Built Machines
Gear Group (Front) - Install
C15 and C18 Engines for Caterpillar Built Machines
Service Magazine

Caterpillar Parts SIS Catalog 621B :

Truck sale:

 
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46,500 
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