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2P3153 MOUNTING MODIFICATIONS GROUP--Part 2 of 3 Part of 2P3154 Air Conditioner Arrangement listed on Page 177 621


OPERATOR STATION
AIR CONDITIONER GP
SEAT GP
FRAME AND BODY
DOOR GP

WHEEL TRACTOR 621 WHEEL TRACTOR 23H
 621 TRACTOR 23H04299-UP (MACHINE) UEG0630S 621 23H   (1966)

OPERATOR STATION

AIR CONDITIONER GP
2P-3154 AIR CONDITIONER ARRANGEMENT
AIR CONDITIONER GP
1P-3322 AIR CONDITIONER GP
AIR CONDITIONER GP
1P-3322 AIR CONDITIONER GP
AIR CONDITIONER GP
1P-3322 AIR CONDITIONER GP
MOUNTING MODIFICATIONS GROUP
2P-3153 MOUNTING MODIFICATIONS GROUP
MOUNTING MODIFICATIONS GROUP
2P-3153 MOUNTING MODIFICATIONS GROUP
MOUNTING MODIFICATIONS GROUP
2P-3153 MOUNTING MODIFICATIONS GROUP
CONDENSER SERVICE DOOR GROUP
3P-2103 CONDENSER SERVICE DOOR GROUP
 

#UEG0630S0400
 

2P-3153: MOUNTING MODIFICATIONS GROUP

2P3153 MOUNTING MODIFICATIONS GROUP--Part 2 of 3
Part of 2P3154 Air Conditioner Arrangement listed on Page 177
c209594 UEG0630S
2P3153 MOUNTING MODIFICATIONS GROUP Parts scheme
  For full view, you need register

Parts for your 621 WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 0S-1591 [20] BOLT 3.81 cm(1.50 in.) long  
  3B-4506 [20] LOCKWASHER  
  4B-4278 [20] WASHER  
2. 3S-8183 [2] CONNECTOR  
3. 2S-5015 [10] TERMINAL  
4. 2S-5011 [1] BODY  
  8M-8947 [1] FUSE (30 Amp)  
  2S-5013 [1] SPRING  
  2S-5012 [1] CAP  
  2S-8708 [2] CONTACT  
5. 8M-2771 [6] CLIP  
6. 5P-5628 CH TUBE 9.144 m(360 in.)  
  5P-5632 CH WIRE 9.144 m(360 in.)  
7. 9S-2527 [4] BODY (Connector)  
8. 3S-2093 [7] TIE  
9. 1P-5977 [2] TERMINAL  
  1P-5978 [2] CONNECTOR  
10. 2L-8064 [3] TERMINAL (No. 6 Screw)  
  2L-8066 [7] TERMINAL (NO. 10 Screw)  
  2L-8069 [3] TERMINAL .95 cm(.375 in.) long  
11. 2L-8071 [2] TERMINAL 1.27 cm(5 in.) screw  
12. 4D-4785 [1] SWITCH  
  5B-7589 [1] FITTING  
  1F-1344 [2] NUT  
13. 1H-2387 [2] BOLT  
  4B-2047 [2] NUT  
  8F-1434 [2] LOCKWASHER  
  4B-4274 [2] WASHER  
14. 1P-7109 [1] BRACKET  
15. 1P-5976 [1] RELAY  
  C   INDICATES CHANGE
  H   ORDER BY THE METRE
 

#UEG0630S0401
 

2P-3153: MOUNTING MODIFICATIONS GROUP

2P3153 MOUNTING MODIFICATIONS GROUP--Part 3 of 3
Part of 2P3154 Air Conditioner Arrangement listed on Page 177
c135926 UEG0630S
2P3153 MOUNTING MODIFICATIONS GROUP Parts scheme
  For full view, you need register

Parts for your 621 WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 1P-4278 [4] CLAMP  
2. 1P-7345 H TUBE 360"  
  2S-4616 [4] CLAMP  
  2H-7829 [12] CLIP  
  1P-5121 [12] SCREW  
3. 6D-4246 [1] CLIP  
4. 1P-5982 [3] FITTING (Female Swivel-90 degrees)  
  1P-5980 [2] FITTING (Female Swivel-Str.)  
  1P-6946 [2] FITTING (Male-Str.)  
5. 5K-3549 J HOSE 600"  
6. 1P-5984 [3] FITTING (Female Swivel-90 degrees)  
  2P-3330 [2] FITTING (Female Swivel-Str.)  
  1P-6950 [2] FITTING (Male-Str.)  
7. 0S-0509 [5] BOLT  
  3B-4506 [5] LOCKWASHER  
  4B-4278 [5] WASHER  
8. 4K-2542 [4] BOSS  
9. 6D-2667 [4] CLIP  
10. 1D-4717 [1] NUT  
11. 3S-2093 [4] TIE  
12. 2S-1647 [1] GROMMET  
13. 1B-1169 [8] CLAMP  
14. 6M-6782 [1] CLIP  
15. 1P-3956 [4] TUBE  
  H   ORDER BY THE FOOT
  J   ORDER BY THE INCH
 

#UEG0630S0402
 

3P-2103: CONDENSER SERVICE DOOR GROUP

3P2103 CONDENSER SERVICE DOOR GROUP
FOR USE WITH 1P3322 AIR CONDITIONER GROUP
SHOWN ON PAGES 178, 179 AND 180
c117547 UEG0630S
3P2103 CONDENSER SERVICE DOOR GROUP Parts scheme
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Parts for your 621 WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. [3] BOLT  
  [3] NUT  
  [3] LOCKWASHER  
2. [5] BOLT  
  [5] LOCKWASHER  
 

#UEG0630S0403
 

8D-8930: SEAT GROUP

8D8930 SEAT GROUP
Serial No. 23H4454-Up
8D8920 Seat parts are shown on Page 184D
c167918 UEG0630S
8D8930 SEAT GROUP Parts scheme
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Parts for your 621 WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 0S-1566 C [4] BOLT  
2. 3B-4510 [8] LOCKWASHER  
3. 8D-8584 [1] GRAB IRON  
4. 1B-4367 [1] BOLT 76.20 mm(3 in.) long  
  1D-4586 [3] BOLT 88.90 mm(3.50 in.) long  
  4D-3704 [4] WASHER  
5. 8D-6144 [2] BLOCK  
6. 5H-4778 [2] UNION  
7. 8D-6899 C [1] SEAT BELT GROUP  
    (Includes)
  2G-6654 SEAT BELT GROUP  
    (No Serviceable Parts)
  2G-6653 [1] SEAT BELT GROUP  
    (Includes)
  2G-6651 [1] PIN  
  9M-7611 [1] RING  
8. 8D-8920 Y [1] SEAT GROUP  
    (Separate Illustration)
9. 8S-4723 [2] BOLT  
10. 5B-3254 [3] NUT  
11. 1B-4204 [2] NUT  
  3B-4507 [2] LOCKWASHER  
12. 3L-6521 [1] TEE  
13. 4H-6147 [1] UNION  
14. 3D-6388 [1] HOSE ASSEM. 111.76 cm(44 in.)  
15. 0T-0102 [10] BOLT  
16. 3D-8884 [1] ELBOW  
17. 2H-3855 [4] BOLT  
  1D-4719 [4] NUT  
  3B-4508 [4] LOCKWASHER  
18. 4S-7560 [1] HOSE ASSEM. 55.88 cm(22 in.)  
19. 3B-4607 [1] COTTER PIN  
20. 9D-1224 C [1] BELT  
21. 8S-0933 [1] EYEBOLT  
22. 1S-8412 [1] PLATE  
  4B-4158 [4] SCREW  
  C   INDICATES CHANGE
  Y   SEPARATE ILLUSTRATION
 

#UEG0630S0404
 

9D-2510: SEAT GROUP

9D2510 SEAT GROUP
Serial No. 23H4454-Up
FOR USE WITH 8D9835 ROLL-OVER PROTECTIVE STRUCTURE SHOWN ON PAGES 174A, 174B AND 174C
8D8920 Seat parts are shown on Page 184D
c168235 UEG0630S
9D2510 SEAT GROUP Parts scheme
  For full view, you need register

Parts for your 621 WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4B-4043 [4] BOLT  
2. 3B-4510 [8] LOCKWASHER  
3. 8D-8584 [1] GRAB IRON  
4. 1B-4367 [1] BOLT 76.20 mm(3 in.) long  
  1D-4586 [3] BOLT 88.90 mm(3.50 in.) long  
  4D-3704 [4] WASHER  
5. 8D-6144 [2] BLOCK  
6. 5H-4778 [2] UNION  
7. 8D-6899 [1] SEAT BELT GROUP  
  2G-6654 C [1] SEAT BELT GROUP  
    (No Serviceable Parts)
    -OR-
  2G-6653 C [1] SEAT BELT GROUP  
    (Includes)
  2G-6651 [1] PIN  
  9M-7611 [1] RING  
8. 8D-8920 H [1] SEAT GROUP  
9. 8S-4723 [2] BOLT  
10. 5B-3254 [3] NUT  
11. 1B-4204 [2] NUT  
  3B-4507 [2] LOCKWASHER  
12. 3L-6521 [1] TEE  
13. 4H-6147 [1] UNION  
14. 3D-6388 [1] HOSE ASSEM. 111.76 cm(44 in.)  
15. 0T-0102 [10] BOLT  
16. 3D-8884 [1] ELBOW  
17. 2H-3855 [4] BOLT  
  1D-4719 [4] NUT  
  3B-4508 [4] LOCKWASHER  
18. 4S-7560 [1] HOSE ASSEM. 55.88 cm(22 in.)  
19. 3B-4607 [1] COTTER PIN  
20. 9D-1224 [1] BELT  
21. 8S-0933 [1] EYEBOLT  
22. 8D-9013 [1] INSULATION  
23. 9D-2306 [1] CARPET  
24. 8D-8209 [1] MAT  
25. 1S-8412 [1] PLATE  
  4B-4158 [4] SCREW  
  C   INDICATES CHANGE
  H   SEPARATE ILLUSTRATION
 

#UEG0630S0405
 

8D-8920: SEAT GP

8D8920 SEAT GROUP--Type 1
Serial No. 23H4454-Up
Part of 8D8930 and 9D2510 Seat Groups shown on Pages 184B and 184C
c116955 UEG0630S
8D8920 SEAT GP Parts scheme
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Parts for your 621 WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 9D-2628 [1] PUMP  
2. 9D-2631 [1] CUSHION ASSEM.  
  9D-2629 [2] BUMPER  
  4B-1256 [2] SCREW  
3. 9D-2626 [1] CUSHION  
4. 9D-2633 [1] PANEL ASSEM.  
5. 9D-2634 [1] VALVE  
6. 9D-2627 [1] VALVE & ROCKER ASSEM.  
7. 9D-2632 [1] ACCUMULATOR  
    THE FOLLOWING REPAIR KITS ARE AVAILABLE:
  9D-2636 [1] KIT (Hose)  
    (Consists of Hose Assems.)
  9D-2637 [1] KIT (Spring)  
    (Consists of Springs)
  9D-2638 [1] KIT (Bearing)  
    (Consists of Bearings)
  9D-2639 [1] KIT (Seat Cylinder)  
    (Consists of Cylinder, Washers, Nuts and Dust Cover)
 

#UEG0630S0406
 

8D-8920: SEAT GP

8D8920 SEAT GROUP--Type 2
Serial No. 23H4454-Up
Part of 8D8930 and 9D2510 Seat Groups shown on Pages 184B and 184C
c206907 UEG0630S
8D8920 SEAT GP Parts scheme
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Parts for your 621 WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 9D-9148 C [1] VALVE ASSEM. (relief)  
    (Includes)
  3J-7354 [1] "O" RING  
2. 9D-2631 [1] CUSHION ASSEM.  
    (Includes)
  9D-2629 [2] BUMPER  
  4B-1256 [2] SCREW  
3. 9D-2626 [1] CUSHION  
4. 9D-2633 [1] PANEL ASSEM.  
    (Includes)
5. 9D-2634 [1] VALVE  
6. 9D-2627 [1] VALVE & ROCKER ASSEM.  
7. 9D-2632 [1] ACCUMULATOR  
8. 2G-1884 C [1] BRACKET  
9. 2R-0364 C [4] RING  
    THE FOLLOWING REPAIR KITS ARE AVAILABLE:
  9D-2636 [1] KIT (hose)  
    (Includes Hose Assem.)
  9D-2637 [1] KIT (spring)  
    (Includes Springs)
  9D-2638 [1] KIT (bearing)  
    (Includes Bearings)
  2G-3783 C [1] KIT (cylinder seat)  
    (Includes Cylinder Assem., Washer, Nuts and Dust Cover)
  2G-1005 C [1] KIT (seal)  
    (Includes 2 seals)
  9D-9147 C [1] KIT (air pump)  
    (Includes Vent Assem., Rings, Screen, "U" Cup, Spring, & Balls)
  C   INDICATES CHANGE
 

#UEG0630S0407
 

2G-0600: POWER SOURCE SEAT CONVERSION GROUP

2G600 POWER SOURCE SEAT CONVERSION GROUP
Serial No. 23H4454-Up
For Field Replacement of 9D2628 Pump shown on Page 184D
UEG0630S0407 UEG0630S
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Parts for your 621 WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  9J-6514 Y [1] VALVE ASSEMBLY  
    MOUNT IN CONVENIENT LOCATION ON TOP OF DIFFERENTIAL CASE BENEATH HITCH AND TO THE RIGHT OF THE MACHINE CENTERLINE IN SUCH A MANNER THAT HOSE ASSEMBLY 5D1258 WILL REACH THE HYDRAULIC TANK ACCUMULATOR LINE.
  3B-4505 [2] LOCKWASHER TO BOLT  
  3B-6553 [1] ELBOW TO ADAPTER USE AS REQUIRED  
  4B-4277 [2] WASHER TO BOLT  
  1D-4538 [2] BOLT TO VALVE  
  1D-4707 [4] BOLT ADAPTER TO ACCUMULATOR USE AS REQUIRED  
  1D-4716 [2] NUT TO BOLT  
  4D-6880 [1] HOSE ASSEMBLY TO TEE IN RETURN PORT OF PRESSURE REDUCING VALVE  
  4D-6880 [1] HOSE ASSEMBLY TO CONNECTOR  
  5D-1258 [1] HOSE ASSEMBLY TO 5H4778 UNION  
  5D-7377 [1] FITTING TO HOSE ASSEMBLY TO REG. PORT ON 9J6514 VALVE ASSEMBLY  
  5D-7377 [1] FITTING TO PRESSURE PORT ON 9J6514 VALVE ASSEMBLY  
  5D-9522 [1] FITTING TO HOSE ASSEMBLY  
  6D-6001 [1] HOSE ASSEMBLY TO FITTING (IF HOSE IS TOO LONG FOR PARTICULAR installation coil excess and retain away from moving parts)  
  7F-8698 [4] BOLT ADAPTER TO CHARGING VALVE USE AS REQUIRED  
  2H-9233 [2] SPACER USE AS REQUIRED  
  4H-6147 [1] UNION TO TEE  
  5H-4778 [1] UNION TO TEE  
  2J-5907 [4] BOLT ADAPTER TO ACCUMULATOR USE AS REQUIRED  
  3J-1907 [1] SEAL TO ADAPTER  
  3J-7354 [1] SEAL TO ADAPTER 5P2937  
  6J-0211 [1] ADAPTER TO FITTING TO ACCUMULATOR LINE  
  6J-3625 [1] SEAL TO ADAPTER  
  4K-8154 [1] PLATE TO VALVE TO DIFFERENTIAL CASE  
  3L-6521 [1] TEE TO ADAPTER OR ELBOW  
  5P-2937 [1] ADAPTER TO TEE TO RETURN PORT ON PRESSURE REDUCING VALVE  
  5P-3501 [1] ADAPTER TO TANK  
  3S-6115 [1] TEE TO HOSE ASSEMBLY  
  9S-1366 [2] BOLT USE AS REQUIRED  
  061-7921 [1] CONNECTOR HOSE ASSEMBLY TO RETURN LINE ON BOSTROM SEAT  
  061-7921 [1] CONNECTOR TO PRESSURE LINE ON BOSTROM SEAT  
  Y   SEPARATE ILLUSTRATION
 

#UEG0630S0408
 

9J-6514: PRESSURE REDUCING VALVE ASSEMBLY

9J6514 PRESSURE REDUCING VALVE ASSEMBLY
Serial No. 23H4454-Up. Part of 2G600 Power Source Seat
Conversion Group listed on Page 184F
c156717 UEG0630S
9J6514 PRESSURE REDUCING VALVE ASSEMBLY Parts scheme
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Parts for your 621 WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 3G-0670 [1] SPRING  
2. 3G-0671 [1] END  
3. 5B-9318 [1] BALL  
4. 3G-0669 [1] SPRING  
5. 3G-0672 [1] END  
6. 3D-4245 [1] SEAL  
7. 2D-6642 [1] BALL  
8. 5L-5840 [1] WASHER  
9. 1B-4203 [1] NUT  
10. 5P-5477 [1] SCREW  
 

#UEG0630S0409
 

5D-9440: HOOD SIDE DOOR GROUP

5D9440 HOOD SIDE DOOR GROUP--Right Hand--Type 1
c105183 UEG0630S
5D9440 HOOD SIDE DOOR GROUP Parts scheme
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Parts for your 621 WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 5D-9411 [1] DOOR ASSEM.  
2. 6F-7013 [1] HANDLE  
3. 4B-4312 [2] RIVET  
4. 2D-2946 [2] HINGE  
    (Parts of 5D9411 Door Assem.)
5. 5D-9412 [1] DOOR ASSEM.  
6. 6F-7013 [1] HANDLE  
7. 0T-0537 [1] FASTENER ASSEM.  
8. 4B-4312 [5] RIVET  
    (Parts of 5D9412 Door Assem.)
9. 6D-0581 [1] BRACKET  
10. 0L-1351 [3] BOLT  
11. 1D-4717 [3] NUT  
12. 3B-4506 [3] LOCKWASHER  
13. 5D-9409 [1] SUPPORT ASSEM.  
 

Information:

Special Instruction
Installation of 9C1916 Louver{5258, 7304}
Installation of 9C1916 Louver{5258, 7304}
Refrigerant Compressor Functional Test for All Caterpillar Machines{1802}
Refrigerant Compressor Functional Test for All Caterpillar Machines{1802}
Tool Operating Manual
Crimping 1028 Thermoplastic Hose, 2760 Reduced Diameter Thermoplastic Hose, and 1543 Air Conditioning Hose{0374, 0599, 0684, 1808, 1812, 7554}
Crimping 1028 Thermoplastic Hose, 2760 Reduced Diameter Thermoplastic Hose, and 1543 Air Conditioning Hose{0374, 0599, 0684, 1808, 1812, 7554}
Service Magazine
New Fans Improve Reliability Of The Air Conditioner Condenser Group{1805,7320}
1998/05/04
New Cab Air Filters Provide Improved Efficiency and Odor Reduction {7309, 7320, 7342}
2003/05/05
Nexus Retrofit Air Conditioning and Heating Parts for Other Than Caterpillar Construction Equipment and On-Highway Trucks {7320}
Nexus Retrofit Air Conditioning and Heating Parts for Other Than Caterpillar Construction Equipment and On-Highway Trucks {7320}
New Pressure Switch Is Now Used For Air Conditioner Refrigerant On Certain Cat Products {1435, 1809}
2011/07/18
An Air Conditioner Kit for Use When Servicing the Air Conditioning System Is Now Available {7320, 7320}
2012/08/24
Recent Changes to the R134a Refrigerant Air Conditioning Manuals Are Now Available for All Caterpillar Products {0374, 1802, 1805, 1807, 1808, 1809, 7309, 7320, 7322, 7343}
2014/08/19

Caterpillar Parts SIS Catalog 621 :

MOUNTING MODIFICATIONS GROUP
2P-3153 MOUNTING MODIFICATIONS GROUP
SWITCH AS
8P-5349 SWITCH AS
SWITCH AS
8P-5349 SWITCH AS
CONSOLE GP-CONTROL
1P-3323 CONSOLE GP-CONTROL
RETURN AIR CONSOLE GROUP
1P-3324 RETURN AIR CONSOLE GROUP
CONSOLE GP-CONTROL
1P-3323 CONSOLE GP-CONTROL
AIR CONDITIONER GP
1P-3322 AIR CONDITIONER GP
AIR CONDITIONER GP
1P-3322 AIR CONDITIONER GP
MOUNTING MODIFICATIONS GROUP
2P-3153 MOUNTING MODIFICATIONS GROUP
CONDENSER SERVICE DOOR GROUP
3P-2103 CONDENSER SERVICE DOOR GROUP
SEAT GROUP
8D-8930 SEAT GROUP
SEAT GROUP
9D-2510 SEAT GROUP
SEAT GP
8D-8920 SEAT GP
SEAT GP
8D-8920 SEAT GP
2G-0600 POWER SOURCE SEAT CONVERSION GROUP
PRESSURE REDUCING VALVE ASSEMBLY
9J-6514 PRESSURE REDUCING VALVE ASSEMBLY

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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