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4J8500 CONTROL VALVE ASSEMBLY Part of 5J9936 Single Lever Bowl Apron Control Group 621 WHEEL TRACTOR


OPERATOR STATION
CONTROL GP-HYDRAULIC
BRAKING SYSTEM
CONTROL GP
ELECTRICAL AND STARTING SYSTEM
LIGHTING GP
BRAKING SYSTEM
MISCELLANEOUS INFORMATION
CONTROL GP
VALVE GP

WHEEL TRACTOR 621 WHEEL TRACTOR 23H
 621 TRACTOR 23H00001-02222 (MACHINE) UE070042 621 23H   (1966)

OPERATOR STATION

CONTROL GP-HYDRAULIC
HOUSING GP-LEVER
5J-5427 HOUSING GP-LEVER
CONTROL LEVER HOUSING GROUP
3J-7585 CONTROL LEVER HOUSING GROUP
SINGLE LEVER BOWL APRON CONTROL GROUP
5J-9936 SINGLE LEVER BOWL APRON CONTROL GROUP
VALVE AS-CONTROL
4J-8500 VALVE AS-CONTROL
CHAMBER AS-BRAKE
5J-5272 CHAMBER AS-BRAKE
CONTROL LEVER HOUSING GROUP
5J-1171 CONTROL LEVER HOUSING GROUP
HOUSING GP-LEVER
5J-5427 HOUSING GP-LEVER
CONTROL LEVER HOUSING GROUP
5J-5454 CONTROL LEVER HOUSING GROUP
 

#UE0700420360
 

4J-8500: VALVE AS-CONTROL

4J8500 CONTROL VALVE ASSEMBLY
Part of 5J9936 Single Lever Bowl Apron Control Group
c88134 UE070042
4J8500 VALVE AS-CONTROL Parts scheme
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Parts for your 621 WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  4J-8393 [1] PLUNGER  
  2D-5986 [1] BOOT  
  1H-1023 [1] SEAL  
  4J-8528 [1] NUT  
  4J-8394 [1] SPRING  
  4J-8398 [1] ADAPTER  
  [1] BODY  
  6H-9691 [1] SEAL  
  4J-8527 [1] STEM  
  4D-1138 [1] VALVE  
  4D-1133 [1] SPRING  
  4D-1135 [1] SEAT  
  9F-5255 [1] STRAINER  
  4D-1134 [1] CAP  
 

#UE0700420361
 

5J-5272: CHAMBER AS-BRAKE

5J5272 BRAKE CHAMBER ASSEMBLY
Part of 5J9936 Single Lever Bowl Apron Control Group
c100290 UE070042
5J5272 CHAMBER AS-BRAKE Parts scheme
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Parts for your 621 WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  4J-4281 [1] PLATE  
  4J-4282 [1] DIAPHRAGM  
  4J-4283 [1] RING  
  5J-5273 [1] SPACER  
  4J-4284 [1] SPRING  
  4J-4286 [1] BODY  
  1B-4201 [2] NUT  
  3B-4504 [2] LOCKWASHER  
  4J-4287 [2] STUD  
  4J-4288 [1] BOOT  
  4J-8387 [1] ROD ASSEM.  
  1A-8285 [1] NUT  
 

#UE0700420362
 

6D-6860: PARKING AND EMERGENCY BRAKE CONTROL ARRANGEMENT

6D6860 PARKING AND EMERGENCY BRAKE CONTROL ARRANGEMENT
UE0700420362 UE070042
  For full view, you need register

Parts for your 621 WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  6D-4700 Y [1] PARKING AND EMERGENCY BRAKE CONTROL GROUP  
  6D-5220 Y [1] PARKING AND EMERGENCY BRAKE CONTROL GROUP  
  Y   SEPARATE ILLUSTRATION
 

#UE0700420363
 

6D-4205: LAMP ASSEMBLY

6D4205 LAMP ASSEMBLY
Part of 6D4700 Brake Control Group listed on Page 179C
c103704 UE070042
6D4205 LAMP ASSEMBLY Parts scheme
  For full view, you need register

Parts for your 621 WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. [1] TERMINAL  
2. [1] SPRING  
3. [1] BULB  
4. [1] LENS ASSEM.  
 

#UE0700420364
 

6D-6860: CONTROL ARRANGEMENT

6D6860 CONTROL ARRANGEMENT
c122122 UE070042
6D6860 CONTROL ARRANGEMENT Parts scheme
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Parts for your 621 WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. JUNCTION BLOCK  
2. DOUBLE CHECK VALVE  
3. ORIFICE  
4. FOOT OPERATED BRAKE CONTROL VALVE  
5. QUICK RELEASE VALVE  
6. RELIEF VALVE  
7. ONE-WAY CHECK VALVE  
8. AIR RESERVOIR  
9. AIR GAUGE  
10. HORN VALVE  
11. AIR HORN  
12. TRANSMISSION HOLD VALVE  
13. TRANSMISSION HOLD  
14. DIFFERENTIAL LOCK VALVE  
15. DIFFERENTIAL LOCK CYLINDER  
16. COMPRESSOR  
17. COMPRESSOR GOVERNOR  
18. INDIVIDUAL WHEEL BRAKE CONTROL VALVE  
 

#UE0700420365
 

6D-4700: PARKING AND EMERGENCY BRAKE CONTROL GROUP

6D4700 PARKING AND EMERGENCY BRAKE CONTROL GROUP--Part 1 of 3
Part of 6D6860 Brake Control Arrangement listed
on Page 179A
UE0700420365 UE070042
  For full view, you need register

Parts for your 621 WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  4D-0487 Y [1] VALVE ASSEMBLY  
  6D-3781 Y [3] VALVE ASSEMBLY  
  6D-3782 Y [1] VALVE ASSEMBLY  
  6D-3783 Y [1] VALVE ASSEMBLY  
  6D-4205 Y [1] LAMP ASSEMBLY  
  6D-5217 Y [2] ROTOCHAMBER ASSEMBLY  
  4F-6941 Y [1] VALVE ASSEMBLY  
  2R-0619 Y [2] VALVE ASSEMBLY  
  6D-4734 [2] TUBE-ROTOCHAMBER TO QUICK RELEASE VALVE  
  2B-7409 [3] PLUG -1/4"  
  7F-3297 [2] CONNECTOR- TUBE TO TEE  
  8B-1261 [2] TEE- TO NIPPLE  
  3B-7738 [2] NIPPLE-TO ROTOCHAMBER  
  5D-5911 [2] HOSE ASSEMBLY  
  4H-6147 [2] UNION- HOSE ASSEMBLY TO DOUBLE CHECK VALVE  
  0L-1351 [2] BOLT- VALVE TO SHIELD  
  3B-4506 [2] LOCKWASHER  
  1D-4717 [2] NUT  
  5H-4778 [12] UNION -90 degrees- 1/4"  
  5D-5911 [2] HOSE ASSEMBLY- VALVE TO ROTOCHAMBER  
  3D-8884 [2] ELBOW- HOSE ASSEMBLY TO ROTOCHAMBER  
  0S-1617 [2] BOLT- VALVE TO SHIELD  
  3B-4505 [2] LOCKWASHER  
  1D-4716 [2] NUT  
  4D-0577 [2] UNION-TO DOUBLE CHECK VALVE  
  4D-7304 [2] HOSE ASSEMBLY-CHECK VALVE TO RELEASE VALVE  
  4B-6067 [2] ELBOW- TO RELEASE VALVE  
  6D-8288 [1] BELLCRANK ASSEMBLY  
  6D-4144 [1] PANEL  
  8H-7696 [1] FITTING- TO VALVE ASSEMBLY  
  4D-5916 [1] HOSE ASSEMBLY- VALVE ASSEMBLY TO FOOT VALVE  
  4D-2560 [1] UNION -EMERGENCY CONTROL VALVE TO HOSE ASSEMBLY  
  4D-2847 [1] HOSE ASSEMBLY- EMERGENCY CONTROL VALVE TO QUICK RELEASE VALVE  
  3B-7722 [1] BUSHING- HOSE ASSEMBLY TO RELEASE VALVE  
  2B-2695 [2] BOLT  
  3B-4505 [2] LOCKWASHER  
  1D-4716 [2] NUT  
  4D-2843 [1] HOSE ASSEMBLY- QUICK RELEASE VALVE TO CROSS ON MAIN CASE  
  7B-0192 [1] CROSS  
  3D-8929 [1] HOSE ASSEMBLY- L.H. -CROSS TO DOUBLE CHECK VALVE  
  5D-1258 [1] HOSE ASSEMBLY- R.H.- CROSS TO DOUBLE CHECK VALVE  
  4K-8864 [1] CLIP  
  Y   SEPARATE ILLUSTRATION
 

#UE0700420366
 

6D-4700: PARKING AND EMERGENCY BRAKE CONTROL GROUP

6D4700 PARKING AND EMERGENCY BRAKE CONTROL GROUP--Part 2 of 3
Part of 6D6860 Brake Control Arrangement listed
on Page 179A
UE0700420366 UE070042
  For full view, you need register

Parts for your 621 WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  8H-7696 [1] FITTING - TO EMERGENCY CONTROL VALVE  
  3L-7055 [1] UNION - FITTING TO HOSE ASSEMBLY  
  5D-9508 [1] HOSE ASSEMBLY - EMERGENCY CONTROL VALVE TO INVERSION VALVE  
  1S-0401 [1] UNION -HOSE ASSEMBLY TO INVERSION VALVE  
  6D-3979 [1] BRACKET -TO ENGINE DASH  
  6D-3978 [1] PLATE - TO ENGINE DASH  
  3S-4904 [1] VALVE ASSEMBLY - INVERSION TO SUPPORT ASSEMBLY  
  4D-6927 [1] HOSE ASSEMBLY - INVERSION VALVE TO EMERGENCY RESERVOIR  
  3B-7722 [1] BUSHING -CHECK VALVE TO ELBOW  
  3B-6553 [1] ELBOW - BUSHING TO NIPPLE  
  3B-7738 [1] NIPPLE - ELBOW TO VALVE ASSEMBLY  
  6D-0918 [1] VALVE ASSEMBLY - PRESSURE PROTECTION  
  4H-6147 [1] UNION - VALVE ASSEMBLY TO HOSE ASSEMBLY  
  4D-7969 [1] HOSE ASSEMBLY - UNION TO INVERSION VALVE  
  6D-3784 [1] RESERVOIR ASSEMBLY - MOUNT TO FUEL TANK  
  2B-7457 [2] PLUG -TO RESERVOIR  
  4J-8648 [2] STRIP - RESERVOIR TO FUEL TANK  
  0L-1351 [4] BOLT - RESERVOIR TO TANK  
  3B-4506 [4] LOCKWASHER - RESERVOIR TO TANK  
  4J-3914 [2] UNION -TO DOUBLE CHECK VALVE  
  3D-6421 [1] HOSE ASSEMBLY - L.H.- INVERSION VALVE TO EMERGENCY DOUBLE CHECK VALVE  
  4D-7918 [1] HOSE ASSEMBLY - R.H.- INVERSION VALVE TO EMERGENCY DOUBLE CHECK VALVE  
  3D-8927 [1] HOSE ASSEMBLY -COMPRESSOR GOVERNOR TO GOVERNOR OVERRIDE VALVE  
  8H-7696 [1] FITTING -TO VALVE ASSEMBLY GOVERNOR OVERRIDE  
  2M-9352 [1] VALVE ASSEMBLY - GOVERNOR OVERRIDE ON ENGINE DASH  
  2H-5202 [1] BODY - TO TANK ASSEMBLY  
  1H-8306 [1] SCREW -TO TANK  
  4D-2560 [1] UNION - GOVERNOR OVERRIDE VALVE TO HOSE ASSEMBLY  
  3D-6389 [1] HOSE ASSEMBLY - UNION TO STANDARD RESERVOIR  
  3L-6521 [1] TEE - SERVICE -TO BOTTOM OUTBOARD FOOT VALVE PORT  
  5D-1258 [1] HOSE ASSEMBLY - FOOT VALVE TO CHECK VALVE  
  3S-6115 [1] TEE - ADAPTER UNION- TO ONE WAY CHECK VALVE  
  6D-1432 [1] VALVE -CHECK - TO SYNCHRO VALVE  
  [1] HOSE ASSEMBLY -ELBOW TO TEE UNION  
  3B-6553 [1] ELBOW - TO SYNCHRO VALVE  
  3B-7738 [1] NIPPLE - ELBOW TO VALVE  
  3B-6553 [1] ELBOW - RESERVOIR TO NIPPLE  
  5M-9444 [1] RESERVOIR ASSEMBLY - TO DECK PLATE  
  0S-1594 [4] BOLT -RESERVOIR TO PLATE  
  3B-4506 [4] LOCKWASHER  
  1D-4717 [4] NUT  
  2B-7457 [2] PLUG -TO RESERVOIR  
 

#UE0700420367
 

6D-4700: PARKING AND EMERGENCY BRAKE CONTROL GROUP

6D4700 PARKING AND EMERGENCY BRAKE CONTROL GROUP--Part 3 of 3
Part of 6D6860 Brake Control Arrangement
listed on Page 179A
UE0700420367 UE070042
  For full view, you need register

Parts for your 621 WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  4D-2560 [1] UNION -SYNCHRO VALVE TO HOSE ASSEMBLY  
  3D-6388 [1] HOSE ASSEMBLY -SYNCHRO VALVE TO INTERMITTENT HORN VALVE  
  3D-7587 [1] UNION -TO INTERMITTENT HORN VALVE  
  2D-1290 [1] GROMMET - TO SUPPORT ASSEMBLY  
  5D-5272 [1] VALVE ASSEMBLY - INTERMITTENT HORN  
  0S-1615 [2] BOLT - VALVE TO COWL  
  3B-4504 [2] LOCKWASHER  
  1B-4330 [2] NUT  
  3F-2778 [1] ELBOW - VALVE ASSEMBLY TO TUBE  
  4D-7174 [1] TUBE - INTERMITTENT VALVE TO DOUBLE CHECK VALVE  
  3F-2778 [1] ELBOW -TUBE TO DOUBLE CHECK VALVE  
  0S-1594 [1] BOLT  
  3B-4506 [1] LOCKWASHER  
  1D-4717 [1] NUT  
  3F-2778 [1] ELBOW -DOUBLE CHECK VALVE  
  6D-4051 [1] TUBE -ELBOW TO HORN  
  6B-9938 [1] CONNECTOR - DOUBLE CHECK VALVE TO TUBE  
  6D-4632 [1] TUBE - DOUBLE CHECK VALVE TO HORN VALVE  
  5H-8936 [1] ADAPTER - EMERGENCY CONTROL VALVE TO INDICATOR  
  8M-1182 [1] INDICATOR - LOW PRESSURE -TO ADAPTER  
  5D-0987 [1] WIRE ASSEMBLY - AMMETER TO INDICATOR  
  7M-9957 [1] LAMP BULB  
  6D-5393 [1] BLOCK - JUNCTION- WELD TO FLOOR PLATE  
  3B-7738 [1] NIPPLE - TO BLOCK  
  6D-0918 [1] VALVE ASSEMBLY -PRESSURE PROTECTION  
  4H-6147 [1] UNION -VALVE ASSEMBLY  
  3D-6399 [1] HOSE ASSEMBLY -VALVE ASSEMBLY  
    TO TEE ON FOOT VALVE
  3S-6115 [1] TEE - ADAPTER UNION  
  3B-7738 [1] NIPPLE  
  5B-6009 [1] COUPLING - REDUCING  
  8S-6532 [1] PLATE - INSTRUCTION  
  6D-6966 [1] TUBE ASSEMBLY - TO RESERVOIR  
  6K-5741 [1] COCK - DRAIN -TO TUBE ASSEMBLY  
  4D-5371 [8] CLIP  
  4B-4158 [4] SCREW - DRIVE  
  6D-4246 [1] CLIP HOSE - ASSEMBLY TO EMERGENCY RESERVOIR  
 

#UE0700420368
 

6D-5220: PARKING AND EMERGENCY BRAKE CONTROL GROUP

6D5220 PARKING AND EMERGENCY BRAKE CONTROL GROUP
Part of 6D6860 Brake Control Arrangement
listed on Page 179A
UE0700420368 UE070042
  For full view, you need register

Parts for your 621 WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  5D-4555 Y [1] VALVE ASSEMBLY  
  6D-3781 Y [2] VALVE ASSEMBLY  
  6D-5217 Y [2] ROTOCHAMBER ASSEMBLY  
  8F-9836 [4] LUG- WELD  
  4J-4252 [2] CLAMP- RESERVOIR TO LUGS  
  3J-2569 [1] RESERVOIR ASSEMBLY  
  0S-1594 [4] BOLT- CLAMP TO LUG  
  3B-4506 [6] LOCKWASHER- 3/8"  
  2H-5202 [1] BODY -TO RESERVOIR  
  1H-8306 [1] SCREW -TO BODY  
  2B-7457 [1] PLUG -TO RESERVOIR  
  3J-4447 [1] GASKET- RELAY EMERGENCY VALVE TO RESERVOIR  
  2D-0193 [2] ELBOW- RELAY EMERGENCY VALVE TO HOSE ASSEMBLIES  
  4D-5918 [2] HOSE ASSEMBLY- RELAY EMERGENCY VALVE TO TEE  
  3D-7587 [2] UNION -HOSE ASSEMBLY TO TEE  
  3L-6521 [2] TEE -TO DOUBLE CHECK VALVE  
  0S-1594 [2] BOLT- VALVE ASSEMBLY TO LUG  
  8F-9836 [2] LUG -WELD TO PUSH FRAME STRUT  
  5D-5911 [2] HOSE ASSEMBLY -TEE TO ROTOCHAMBER  
  5H-4778 [13] UNION -90 degrees- 1/4"  
  6D-5364 [2] HOSE ASSEMBLY- DOUBLE CHECK VALVE TO ROTOCHAMBER  
  3B-6553 [2] ELBOW -HOSE ASSEMBLY TO ROTOCHAMBER  
  3B-7722 [1] BUSHING -REDUCING -RESERVOIR TO NIPPLE  
  6D-1432 [1] VALVE ASSEMBLY- SINGLE CHECK  
  3B-7738 [1] NIPPLE -VALVE ASSEMBLY TO CROSS  
  7B-0192 [1] CROSS -TO NIPPLE  
  4D-7969 [1] HOSE ASSEMBLY- CROSS TO DOUBLE CHECK VALVE- L.H.  
  4D-7928 [1] HOSE ASSEMBLY- CROSS TO DOUBLE CHECK VALVE- R.H.  
  3B-6553 [2] ELBOW -HOSE ASSEMBLY TO DOUBLE CHECK VALVE  
  4D-6878 [1] HOSE ASSEMBLY- RELAY EMERGENCY VALVE  
    TO BLOCK ON BOWL SIDE
  3D-6421 [1] HOSE ASSEMBLY- CROSS TO BLOCK ON BOWL SIDE  
  4H-6147 [2] UNION- HOSE ASSEMBLIES TO BLOCK  
  7J-0703 [2] HOSE ASSEMBLY -BLOCK TO BLOCK  
  4H-6147 [2] UNION- HOSE ASSEMBLIES TO BLOCK  
  2R-6099 [2] BLOCK- WELD TO TUBE ASSEMBLY  
  3D-8884 [2] ELBOW -BLOCK TO HOSE ASSEMBLY  
  4D-6878 [1] HOSE ASSEMBLY- RELAY VALVE  
    TO STANDARD PORT ON BOWL SIDE
  4D-2850 [2] HOSE ASSEMBLY- BLOCK TO FITTING ON DRAFT TUBE  
  3J-8057 [2] CONNECTOR -TO DRAFT TUBE  
  4F-7506 [2] WASHER  
  1D-6306 [2] NUT  
  6D-5266 [1] HOSE ASSEMBLY- CONNECTOR  
    TO CROSS ON DIFFERENTIAL CASE
  6D-5266 [1] HOSE ASSEMBLY- CONNECTOR TO COCK ON ENGINE DASH  
  4J-3914 [1] UNION- HOSE ASSEMBLY TO STANDARD PORT ON BOWL SIDE  
  4D-6988 [2] CLIP- TO CLIP  
  4D-5371 [10] CLIP  
  4K-8864 [1] CLIP  
  Y   SEPARATE ILLUSTRATION
 

#UE0700420369
 

6D-3783: DOUBLE CHECK VALVE ASSEMBLY

6D3783 DOUBLE CHECK VALVE ASSEMBLY
Part of 6D4700 Brake Control Group
listed on Page 179C
c122128 UE070042
6D3783 DOUBLE CHECK VALVE ASSEMBLY Parts scheme
  For full view, you need register

Parts for your 621 WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 9H-6761 [1] SEAL  
2. 6F-6672 [1] SEAL  
3. 2D-6392 [1] SEAL  
4. 4J-3960 [1] VALVE  
5. 8F-3469 [1] SEAL  
 

Information:

Specifications
Scraper Control Valve<BR> (5J8787, 6J21 and 7J5779)
J621 ELEVATING SCRAPER HYDRAULIC SYSTEM
Disassembly and Assembly
Cushion Hitch Leveling Valve
621 TRACTOR-SCRAPER VEHICLE SYSTEMS
Hydraulic Control Valve
J621 ELEVATING SCRAPER VEHICLE SYSTEMS
Service Magazine
Stronger Lever Assemblies Are Now Available For Scraper Control Valve Groups{5300,6200}
1980/05/19

Caterpillar Parts SIS Catalog 621 :

SINGLE LEVER BOWL APRON CONTROL GROUP
5J-9936 SINGLE LEVER BOWL APRON CONTROL GROUP
PIN GROUP
PIN GROUP
PIN GROUP
PIN GROUP
HITCH AND STEERING
HITCH AND STEERING
HITCH AND STEERING
HITCH AND STEERING
HITCH AND STEERING
HITCH AND STEERING
HITCH AND STEERING
HITCH AND STEERING
TRACTOR TO SCRAPER LINES
TRACTOR TO SCRAPER LINES
CHAMBER AS-BRAKE
5J-5272 CHAMBER AS-BRAKE
6D-6860 PARKING AND EMERGENCY BRAKE CONTROL ARRANGEMENT
LAMP ASSEMBLY
6D-4205 LAMP ASSEMBLY
CONTROL ARRANGEMENT
6D-6860 CONTROL ARRANGEMENT
6D-4700 PARKING AND EMERGENCY BRAKE CONTROL GROUP
6D-4700 PARKING AND EMERGENCY BRAKE CONTROL GROUP
6D-4700 PARKING AND EMERGENCY BRAKE CONTROL GROUP
6D-5220 PARKING AND EMERGENCY BRAKE CONTROL GROUP

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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AVSpare.com is in no way associated with any of the manufacturers we have listed. All manufacturer's names and descriptions are for reference only. Cat® and Caterpillar® are registered trademarks of Caterpillar, Inc.