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3G1803 CHARGE PUMP-FIXED DISPLACEMENT PART OF 9J3458 HYDROSTATIC POWER CONTROL ARRANGEMENT LISTED ON PAGE 101 943


POWER TRAIN
PUMP GP
VALVE GP-RELIEF
VALVE GP
VALVE GP-SHUTTLE
VALVE GP
VALVE GP-ACTUATOR
VALVE GP-PILOT
VALVE GP-BYPASS
VALVE GP-BLOCKER

TRACK LOADER 943 TRACK LOADER 04Z
 943 LGP TRACK-LOADER / HIGH DRIVE / 04Z00307-UP (MACHINE) POWERED BY 3204 ENGINE SEBP1446 943 04Z   (1980)

POWER TRAIN

PUMP GP
PUMP GP-AXIAL PISTON
9J-2090 PUMP GP-AXIAL PISTON
PUMP GP-AXIAL PISTON
9J-2091 PUMP GP-AXIAL PISTON
PUMP GP-CHARGE
3G-1803 PUMP GP-CHARGE
 

#SEBP14460180
 

3G-1803: PUMP GP-CHARGE

3G1803 CHARGE PUMP-FIXED DISPLACEMENT
PART OF 9J3458 HYDROSTATIC POWER CONTROL ARRANGEMENT LISTED ON PAGE 101
c312084 SEBP1446
3G1803 PUMP GP-CHARGE Parts scheme
  For full view, you need register

Parts for your 943 TRACK LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 5P-7604 [1] RING  
2. 4M-7668 [1] SEAL  
3. 5B-3254 [8] NUT  
  5P-8244 [8] WASHER  
4. 1U-3222 [8] STUD  
    THE FOLLOWING REPAIR KIT IS AVAILABLE:
  1U-4628 C [1] KIT (SEAL)  
  C   INDICATES CHANGE
 

#SEBP14460181
 

3G-0257: VALVE GP-RELIEF

3G0257 RELIEF VALVE-PILOT OPERATED
TRANSMISSION SERIAL NO. 1DA1558 TO 1DA1941 INCLUSIVE
PART OF 3G4503 TRANSMISSION CONTROL
c226737 SEBP1446
3G0257 VALVE GP-RELIEF Parts scheme
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Parts for your 943 TRACK LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 3G-3726 [1] NUT  
2. 3G-3857 [2] GASKET  
3. 3G-3854 [1] CAP  
4. 5P-8356 [1] SEAL-O-RING  
5. 061-7539 [1] SEAL-O-RING  
6. 8L-2746 [1] SEAL-O-RING  
 

#SEBP14460182
 

9T-1320: VALVE GP-RELIEF

9T1320 RELIEF VALVE GROUP-PILOT OPERATED
TRANSMISSION SERIAL NO. 1DA1942-UP
PART OF 3G4503 TRANSMISSION CONTROL
c330406 SEBP1446
9T1320 VALVE GP-RELIEF Parts scheme
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Parts for your 943 TRACK LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 3G-3726 [1] NUT  
2. 3G-3857 [2] GASKET  
3. 3G-3854 [1] CAP  
4. 5P-8356 [1] SEAL-O-RING  
5. 061-7539 [1] SEAL-O-RING  
6. 6V-5142 [1] SEAL-O-RING  
 

#SEBP14460183
 

3G-8448: VALVE GP-OVERRIDE

3G8448 UNDERSPEED OVERRIDE VALVE GROUP
PART OF 9J3458 HYDROSTATIC POWER CONTROL ARRANGEMENT LISTED ON PAGE 101
4T5569 VALVE PARTS ARE SHOWN ON PAGE 126
c312119 SEBP1446
3G8448 VALVE GP-OVERRIDE Parts scheme
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Parts for your 943 TRACK LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4T-5569 [1] VALVE GP  
2. 0S-1591 [1] BOLT  
  1D-4717 [1] NUT  
3. 8G-0538 CY [1] LEVER  
  1B-8705 [1] KEY-WOODRUFF  
  C   CHANGE FROM PREVIOUS TYPE
  Y   SEPARATE ILLUSTRATION
 

#SEBP14460184
 

4T-3056: VALVE GP-SHUTTLE

4T3056 SHUTTLE VALVE GROUP
PART OF 4T1582 PISTON MOTOR GROUP SHOWN ON PAGE 120
c303903 SEBP1446
4T3056 VALVE GP-SHUTTLE Parts scheme
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Parts for your 943 TRACK LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 3G-3838 [2] PLUG AS  
    (EACH INCLUDES)
2. 9L-9766 [1] PIN-PLUNGER LIFT  
3. 3J-1907 [2] SEAL  
4. 4B-9783 [2] BALL  
5. 4T-3057 [1] BODY AS-VALVE  
6. 3G-3835 [1] PIN  
 

#SEBP14460185
 

4T-5569: VALVE GP

4T5569 VALVE GROUP
PART OF 3G8448 VALVE PARTS ARE SHOWN ON PAGE 125
c312120 SEBP1446
4T5569 VALVE GP Parts scheme
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Parts for your 943 TRACK LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 5P-6859 [1] SEAL-LIP TYPE  
2. 3G-8177 [1] BODY  
3. 3G-4710 [1] PLUNGER  
4. 8M-4390 [1] SEAL-O-RING  
5. 3G-8447 [1] STEM  
6. 3S-5907 [2] PLUG  
7. 1H-1200 [1] PIN-SPRING  
8. 1A-2812 [1] WASHER  
9. 2N-8611 [1] RING-RETAINING  
 

#SEBP14460186
 

9J-9324: VALVE GP-ACTUATOR

9J9324 UNDERSPEED VALVE GROUP
PART OF 9J3458 POWER CONTROL ARRANGEMENT ON PAGE 101
c177606 SEBP1446
9J9324 VALVE GP-ACTUATOR Parts scheme
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Parts for your 943 TRACK LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 9J-8600 [1] VALVE GROUP  
2. 9J-8668 [1] SPRING  
3. 9J-8672 [2] RETAINER  
4. 2S-4078 [1] SEAL  
5. 9J-8677 [1] PLUG  
6. 7S-5757 [1] RING  
7. 1U-4043 C [1] LEVER ASSEM.  
8. 3G-8475 [1] GUIDE ASSEM.  
9. 2M-1672 [2] BEARING  
10. 4J-4144 [1] WASHER  
11. 3G-4717 [2] PIN  
12. 3G-4731 [1] LEVER ASSEM.  
13. 3G-4728 [2] RETAINER  
14. 3G-4711 [2] SPRING  
15. 3G-4729 [4] RETAINER  
16. 3G-8669 [1] LEVER ASSEM.  
    (Includes)
  3G-3500 [1] BEARING  
17. 3G-8471 [1] PIN  
18. 3G-8479 [1] PIN  
19. 5D-4822 [1] RING  
20. 5H-8432 C [1] GASKET  
21. 8L-8598 [1] ROD END  
22. 1D-4717 [2] NUT  
23. 6V-2665 [2] SET SCREW  
24. 9J-8737 [1] SHAFT  
25. 4L-2236 [2] BEARING  
26. 5F-0548 [2] WASHER  
27. 034-4160 [2] BOLT  
28. 9M-1974 [6] WASHER  
29. 3G-8588 [2] PIN  
30. 2N-8611 [1] RING  
31. 1A-2812 [1] WASHER  
32. 5P-6859 [1] SEAL  
33. 3G-8167 [1] BRACKET  
  1F-4503 [2] BEARING  
34. 2B-2694 [4] BOLT  
35. 5P-8211 [1] SEAL  
36. 9J-8669 [1] SPRING  
37. 9J-8718 [1] RETAINER  
38. 3G-8473 [1] BOLT  
39. 2K-4973 [1] NUT  
40. 5M-2894 [1] WASHER  
41. 3G-2713 [2] RETAINER  
  C   INDICATES CHANGE
 

#SEBP14460187
 

1U-4771: VALVE GP-PILOT

1U4771 PILOT OVERSPEED VALVE GROUP
PART OF 9J3458 HYDROSTATIC CONTROL ARRANGEMENT LISTED ON PAGE 101
c312074 SEBP1446
1U4771 VALVE GP-PILOT Parts scheme
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Parts for your 943 TRACK LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 1U-4790 [1] SCREW  
2. 1B-4203 C [1] LOCKNUT  
3. 1U-4780 [1] PLUG  
4. 2M-9780 [1] SEAL  
5. 1U-4770 [1] VALVE GROUP  
6. 4T-0363 C [1] SPRING  
7. 9S-8005 [1] PLUG  
  3K-0360 [1] SEAL  
8. 3G-8478 [1] PLATE  
9. 031-4630 [2] BOLT  
  9M-1974 [2] WASHER  
10. 1B-4201 C [1] LOCKNUT  
11. 1U-0425 [1] ROD END  
12. 3G-8477 [2] RETAINER  
13. 2L-8202 [1] SPRING  
14. 3G-8476 [2] RETAINER  
15. 5M-2894 [1] WASHER  
  8J-6775 [1] SEAL  
  C   INDICATES CHANGE
 

#SEBP14460188
 

1U-2043: VALVE GP-BYPASS

1U2043 BY-PASS VALVE GROUP
PART OF 9J3458 HYDROSTATIC POWER CONTROL ARRANGEMENT LISTED ON PAGE 101
c301339 SEBP1446
1U2043 VALVE GP-BYPASS Parts scheme
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Parts for your 943 TRACK LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 3G-3956 [1] HOUSING  
2. 5P-6718 C [1] SEAL  
3. 2J-6088 [1] SPRING  
4. 4T-0956 C [1] RETAINER  
5. 5P-7701 C [1] SEAL  
6. 033-6036 C [1] SEAL  
7. 3G-0666 [1] VALVE  
8. 6V-5184 C [1] PLUG  
  C   INDICATES CHANGE
 

#SEBP14460189
 

4T-2718: VALVE GP-BLOCKER

4T2718 BLOCKER VALVE GROUP
PART OF 9J8554 CHARGE & MAIN RELIEF VALVE GROUP SHOWN ON PAGE 131
c554535 SEBP1446
4T2718 VALVE GP-BLOCKER Parts scheme
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Parts for your 943 TRACK LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 9S-8005 [2] PLUG-O-RING  
2. 3K-0360 [2] SEAL-O-RING  
3. 9S-8001 [2] PLUG-O-RING  
4. 4J-7533 [2] SEAL-O-RING  
5. 9J-8553 [1] VALVE GP  
6. 2D-6642 [1] BALL  
7. 1U-4833 [2] SEAT  
8. 033-6039 [2] SEAL-O-RING  
9. 030-0167 [2] RING-BACK-UP  
 

Information:

Special Instruction
Rotating Group Adjustment Instructions for Bosch Rexroth Hydraulic Pumps and Motors {3203, 4351, 5058, 5070}
Rotating Group Adjustment Instructions for Bosch Rexroth Hydraulic Pumps and Motors {3203, 4351, 5058, 5070}
Repair Process for Hydraulic Gear Pumps {5073}
Repair Process for Hydraulic Gear Pumps {5073}
Test Specifications for Vane Cartridges{0784, 5058, 5070}
Test Specifications for Vane Cartridges{0784, 5058, 5070}
Specifications
Underspeed Override Valve<BR> (3G8448 and 1U376)
943 & 953 TRACK-TYPE LOADERS
Underspeed Valve<BR> (9J9324) - 943, (3G7261) - 953
943 & 953 TRACK-TYPE LOADERS
Tool Operating Manual
Replacing Sleeve Bearings in Tyrone Gear Pumps and Motors (Used on Series 7 and 8, Iron and Aluminum Housings){0738, 5061, 5073, 7551}
Replacing Sleeve Bearings in Tyrone Gear Pumps and Motors (Used on Series 7 and 8, Iron and Aluminum Housings){0738, 5061, 5073, 7551}
Reuse And Salvage Guidelines
Rotating Group Adjustment Instructions for Bosch Rexroth Hydraulic Pumps and Motors {3203, 4351, 5058, 5070}
Rotating Group Adjustment Instructions for Bosch Rexroth Hydraulic Pumps and Motors {3203, 4351, 5058, 5070}
Hydraulic Gear Pumps Used in Transmissions {3066, 5073}
Hydraulic Gear Pumps Used in Transmissions {3066, 5073}
Repair Process for Hydraulic Gear Pumps {5073}
Repair Process for Hydraulic Gear Pumps {5073}
Specifications and Reusability for Hydraulic Gear Pumps and Motors (Groups 1, 2, and 3) {5061, 5073}
Specifications and Reusability for Hydraulic Gear Pumps and Motors (Groups 1, 2, and 3) {5061, 5073}
Specifications and Reusability for Hydraulic Gear Pumps and Motors (Groups 4, 5, and 6) {5061, 5073}
Specifications and Reusability for Hydraulic Gear Pumps and Motors (Groups 4, 5, and 6) {5061, 5073}
Removing and Installing Bushings and Pressure Plates in Hydraulic Gear Pumps {5073}
Removing and Installing Bushings and Pressure Plates in Hydraulic Gear Pumps {5073}
General Reuse and Salvage Guideline for Hydraulic Piston Pumps and Motors {5058, 5070}
General Reuse and Salvage Guideline for Hydraulic Piston Pumps and Motors {5058, 5070}
Thermal Spray Procedures for Tyrone Drive Shaft (Pump Gear){0679, 3066, 5073}
Thermal Spray Procedures for Tyrone Drive Shaft (Pump Gear){0679, 3066, 5073}
Bench Test Procedures
Rotating Group Adjustment Instructions for Bosch Rexroth Hydraulic Pumps and Motors {3203, 4351, 5058, 5070}
Rotating Group Adjustment Instructions for Bosch Rexroth Hydraulic Pumps and Motors {3203, 4351, 5058, 5070}
Bench Test Procedure for Gear Pumps {5073}
Bench Test Procedure for Gear Pumps {5073}
Disassembly and Assembly
Charge Pump (Fixed Displacement)
943 & 953 TRACK-TYPE LOADER POWER TRAIN
Pump Head
943 & 953 TRACK-TYPE LOADER POWER TRAIN
Pump Head And Barrel Assemblies
943 & 953 TRACK-TYPE LOADER POWER TRAIN
Pilot-Overspeed Valve
943 & 953 TRACK-TYPE LOADER POWER TRAIN
Underspeed Override Valve
943 & 953 TRACK-TYPE LOADER POWER TRAIN
Underspeed Valve
943 & 953 TRACK-TYPE LOADER POWER TRAIN
Pump (Axial Piston, Variable Displacement)
943 & 953 TRACK-TYPE LOADER POWER TRAIN
Service Magazine
Improved Parts Prevent Rust In Transmission And Pump Drive Filler Group{3217}
1981/11/09
Rotate Input Shafts During Installation Of Pump Head On Hydrostatic Transmissions{3211}
1983/01/10
New Spring Used In Axial Piston Pumps{3203}
1983/05/30
Use The Correct Dipstick For Transmission And Pump Drive Filler Group{3217,3218}
1984/10/22
New Dipstick And Plate Improve Service Life Of Transmission And Pump Drive Filler Group{3217}
1985/10/07
Governor Control Linkage Uses Bolted Joint To Prevent Low Engine Lug Speed {1250,1265,3223}
1987/09/28
New Nut Used On Pump Shaft In Hydrostatic Power Case Group Does Not Use A Cotter Pin {3204}
1988/08/29
Modify Stem To Prevent Hydraulic Lock In 9J8600 Underspeed Valve{3216}
1990/01/22
Measuring Head Wear In Hydrostatic Transmissions And Track Motors{3203,3222,4351}
1990/02/19
Remanufactured Caterpillar Piston Pump And Motor Barrels Available{5070,3208,4351,5058}
1990/12/17
Correcting Engine Lugging and/or Underspeed Cut-in Adjustment Problems {3216}
1995/10/09

Caterpillar Parts SIS Catalog 943 :

PUMP GP-AXIAL PISTON
9J-2091 PUMP GP-AXIAL PISTON
PUMP GP-AXIAL PISTON
9J-2090 PUMP GP-AXIAL PISTON
4T-1582 MOTOR GP-PISTON
MOTOR GP-PISTON
4T-1582 MOTOR GP-PISTON
4T-1582 MOTOR GP-PISTON
MOTOR GP-PISTON
4T-1582 MOTOR GP-PISTON
MOTOR GP-PISTON
4T-1582 MOTOR GP-PISTON
MOTOR GP-PISTON
4T-1582 MOTOR GP-PISTON
VALVE GP-RELIEF
3G-0257 VALVE GP-RELIEF
VALVE GP-RELIEF
9T-1320 VALVE GP-RELIEF
VALVE GP-OVERRIDE
3G-8448 VALVE GP-OVERRIDE
VALVE GP-SHUTTLE
4T-3056 VALVE GP-SHUTTLE
VALVE GP
4T-5569 VALVE GP
VALVE GP-ACTUATOR
9J-9324 VALVE GP-ACTUATOR
VALVE GP-PILOT
1U-4771 VALVE GP-PILOT
VALVE GP-BYPASS
1U-2043 VALVE GP-BYPASS

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