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1U3991 CYLINDER GP-TILT (CHGS 05-06) 165.1 MM (6.5 IN.) BORE X 127 MM (5 IN.) STROKE. TYPE 1 BULLDOZER S/N 1AH1-UP,1DH1-UP,1CH1-UP PART OF 6Y0948, 6Y0949 PUSH ARMS AN ATTACHMENT D6H


HYDRAULIC SYSTEM
CYLINDER GP
MOTOR GP
CYLINDER GP
PUMP GP
MOTOR GP
SHAFT GP

TRACK-TYPE TRACTOR D6H TRACK-TYPE TRACTOR 3YG
 D6H, D6H LGP TRACTORS DIFFERENTIAL STEERING 3YG00001-03999 (MACHINE) POWERED BY 3306 ENGINE SEBP1741 D6H 3YG   (1987)

HYDRAULIC SYSTEM

CYLINDER GP
CYLINDER GP-TILT
9T-6095 CYLINDER GP-TILT
CYLINDER GP-BULLDOZER LIFT
9T-8952 CYLINDER GP-BULLDOZER LIFT
CYLINDER GP-TILT
1U-3991 CYLINDER GP-TILT
CYLINDER GP-TILT
1U-3991 CYLINDER GP-TILT
CYLINDER GP-BULLDOZER LIFT
1U-3989 CYLINDER GP-BULLDOZER LIFT
CYLINDER GP-BULLDOZER LIFT
1U-3990 CYLINDER GP-BULLDOZER LIFT
 

#SEBP17410530
 

1U-3991: CYLINDER GP-TILT

1U3991 CYLINDER GP-TILT (CHGS 05-06)
165.1 MM (6.5 IN.) BORE X 127 MM (5 IN.) STROKE. TYPE 1
BULLDOZER S/N 1AH1-UP,1DH1-UP,1CH1-UP
PART OF 6Y0948, 6Y0949 PUSH ARMS
AN ATTACHMENT
c498742 SEBP1741
1U3991 CYLINDER GP-TILT Parts scheme
  For full view, you need register

Parts for your D6H TRACK-TYPE TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 9T-0934 [1] CYLINDER AS  
2. 2J-8489 [1] BEARING  
3. 3S-6162 [1] WASHER-HARD  
4. 3J-9703 J [1] RING-WEAR  
5. 4T-0259 [1] PISTON  
6. 5J-4991 J [1] SEAL AS  
7. 1U-4069 [1] ROD AS  
8. 2K-4473 J [1] RING-BACK-UP  
9. 2K-4472 J [1] SEAL-O-RING  
10. 8C-9126 J [1] SEAL AS  
11. 9T-0095 C [1] HEAD  
12. 1D-4709 [4] BOLT  
  5P-8250 [4] WASHER  
13. 5J-8300 J [1] SEAL-U-CUP  
14. 8C-5218 [1] SEAL-LIP TYPE  
15. 1D-4616 [4] BOLT  
  1B-4331 [4] NUT  
16. 8J-2880 [1] CAP-BEARING  
17. 3J-6572 [12] SHIM .5MM(.02IN)THK  
18. 9T-0094 C [1] RING-WEAR  
19. 6V-2710 [1] BOLT-SELF LOCKING  
   
   
   
   
   
    THE FOLLOWING REPAIR
    KIT IS AVAILABLE:
  8T-1408 [1] KIT-HYD CYLINDER SEAL  
    (INCL. PARTS MARKED J)
  C   CHANGE FROM PREVIOUS TYPE
 

#SEBP17410531
 

1U-3991: CYLINDER GP-TILT

1U3991 CYLINDER GP-TILT (CHGS 07-08)
165.1 MM (6.5 IN.) BORE X 127 MM (5 IN.) STROKE. TYPE 2
BULLDOZER S/N 1CH1-UP,1DH1-UP,7GH1-UP,7HH1-UP,1AH1-UP
PART OF 6Y0948, 6Y0949 PUSH ARMS
AN ATTACHMENT
c619309 SEBP1741
1U3991 CYLINDER GP-TILT Parts scheme
  For full view, you need register

Parts for your D6H TRACK-TYPE TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 9T-0934 [1] CYLINDER AS  
2. 2J-8489 [1] BEARING  
3. 3S-6162 [1] WASHER-HARD (6MM THK)  
4. 3J-9703 J [1] RING-WEAR  
5. 4T-0259 [1] PISTON  
6. 5J-4991 [1] SEAL AS  
7. 1U-4069 [1] ROD AS  
8. 7J-8955 C [1] RING-BACKUP  
9. 7J-8956 C [1] SEAL-O-RING  
10. 8C-9126 [1] SEAL AS  
11. 6E-5527 C [1] HEAD  
12. 1D-4709 [4] BOLT (1-8X3IN)  
  5P-8250 [4] WASHER (5.0MM THK)  
13. 5J-8300 J [1] SEAL-U-CUP  
14. 8C-5218 [1] SEAL-LIP  
15. 7X-0373 [4] BOLT (3/4-10X5.50IN)  
  6V-8182 [4] NUT (3/4-10 THD)  
16. 8J-2880 [1] CAP-BEARING  
17. 8E-5703 B [24] SHIM (0.8MM THK)  
18. 9T-0094 [1] RING-WEAR  
19. 6V-2710 [1] BOLT-LOCKING  
20. 8T-8379 C [1] SEAL-HEAD  
    THE FOLLOWING REPAIR
    KIT IS AVAILABLE:
  8T-1408 [1] KIT-HYD CYLINDER SEAL  
    (INCL. SEALS, RINGS,
    AND PARTS MARKED J)
  B   USE AS REQUIRED
  C   CHANGE FROM PREVIOUS TYPE
 

#SEBP17410532
 

1U-3989: CYLINDER GP-BULLDOZER LIFT

1U3989 CYLINDER GP-DOZER LIFT (CHGS 03-04)
95.25 MM (3.75 IN.) BORE X 1262 MM (49.61 IN.) STROKE
BULLDOZER S/N 1BH1-UP, 1CH1-UP, 1DH1-UP
PART OF 4T4367, 6Y0079, 6Y0080 BULLDOZER ARS
AN ATTACHMENT
c565278 SEBP1741
1U3989 CYLINDER GP-BULLDOZER LIFT Parts scheme
  For full view, you need register

Parts for your D6H TRACK-TYPE TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 9T-4762 C [1] HEAD  
2. 1F-6762 [1] BOLT  
3. 1U-4738 [1] WASHER  
4. 5J-8019 J [1] RING-WEAR  
5. 8C-3839 C [1] SEAL AS  
6. 9T-3884 [1] PISTON AS  
7. 2H-4145 J [1] SEAL-O-RING  
8. 1S-0669 J [1] RING (BACK UPPER)  
9. 5J-8011 [1] SEAL AS  
10. 1U-4081 R [1] ROD AS  
11. 8E-9212 [16] SHIM  
12. 4J-0121 [1] CAP-BEARING  
13. 0S-1756 [4] BOLT  
14. 1B-4331 [4] NUT (FULL)  
15. 1U-4079 [1] CROWN  
16. 8C-3840 C [1] SEAL-LIP TYPE  
17. 5J-0964 J [1] SEAL-U-CUP  
18. 1U-4086 R [1] CYLINDER AS  
19. 4J-6374 [2] BEARING-SLEEVE  
20. 8T-5668 [1] RING-WEAR  
   
    THE FOLLOWING REPAIR
    KIT IS AVAILABLE:
  8T-3015 [1] KIT-SEAL (INCL PARTS MARKED J)  
  C   CHANGE FROM PREVIOUS TYPE
  R   REMFG PART MAY BE AVAILABLE
 

#SEBP17410533
 

1U-3990: CYLINDER GP-BULLDOZER LIFT

1U3990 CYLINDER GP-DOZER LIFT (CHGS 03-04)
95.25 MM (3.75 IN.) BORE X 1262 MM (49.69 IN.) STROKE
BULLDOZER S/N 1AH1-UP
PART OF 6Y0081 BULLDOZER AR-STRAIGHT, 8E1238, 8E1240 VALVES & CYLINDERS
AN ATTACHMENT
c565281 SEBP1741
1U3990 CYLINDER GP-BULLDOZER LIFT Parts scheme
  For full view, you need register

Parts for your D6H TRACK-TYPE TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 9T-4762 C [1] HEAD  
2. 1F-6762 [1] BOLT  
3. 1U-4738 [1] WASHER  
4. 5J-8019 J [1] RING-WEAR  
5. 8C-3839 C [1] SEAL AS  
6. 9T-3884 [1] PISTON AS  
7. 2H-4145 J [1] SEAL-O-RING  
8. 1S-0669 J [1] RING (BACK UPPER)  
9. 5J-8011 [1] SEAL AS  
10. 1U-4081 R [1] ROD AS  
11. 8E-9212 [16] SHIM  
12. 4J-0121 [1] CAP-BEARING  
13. 0S-1756 [4] BOLT  
14. 1B-4331 [4] NUT  
15. 1U-4079 [1] CROWN  
16. 8C-3840 C [1] SEAL-LIP TYPE  
17. 5J-0964 J [1] SEAL-U-CUP  
18. 1U-4087 [1] CYLINDER AS  
19. 4J-6374 [2] BEARING-SLEEVE  
20. 8T-5668 [1] RING-WEAR  
   
    THE FOLLOWING REPAIR
    KIT IS AVAILABLE:
  8T-3015 [1] KIT-SEAL (HYD CYL)  
    (INCLS PARTS MARKED J)
  C   CHANGE FROM PREVIOUS TYPE
  R   REMFG PART MAY BE AVAILABLE
 

#SEBP17410534
 

9W-5269: ADAPTER GP-MOTOR

9W5269 ADAPTER GP-MOTOR
c484147 SEBP1741
9W5269 ADAPTER GP-MOTOR Parts scheme
  For full view, you need register

Parts for your D6H TRACK-TYPE TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 8C-6857 [2] BOLT  
2. 8T-4994 [2] WASHER  
3. 8T-7568 [1] SEAL-O-RING  
4. 3N-0759 [1] RING-SEALING  
5. 9W-7028 [1] ADAPTER  
6. 9S-1366 [6] BOLT  
7. 5P-8245 [6] WASHER  
 

#SEBP17410535
 

3G-9451: MOUNTING GP-CYLINDER

3G9451 MOUNTING GP-CYLINDER
BULLDOZER S/N 1AH1-739, 1BH1-778, 1CH1-1562, 1DH1-667
PART OF 4T4367, 6Y0079, 6Y0080, 6Y0081 BULLDOZER ARS
AN ATTACHMENT
c413913 SEBP1741
3G9451 MOUNTING GP-CYLINDER Parts scheme
  For full view, you need register

Parts for your D6H TRACK-TYPE TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4T-4875 C [2] PIN  
2. 5P-2671 [2] SEAL-LIP TYPE  
3. 3G-9405 [4] CAP AS  
    (EACH INCLUDES)
4. 3G-9402 [1] BEARING-SLEEVE  
5. 1D-4601 C [8] BOLT  
6. 3G-9378 [2] YOKE  
7. 4K-0367 [8] NUT  
  C   CHANGE FROM PREVIOUS TYPE
 

#SEBP17410536
 

3G-9451: MOUNTING GP-CYLINDER

3G9451 MOUNTING GP-CYLINDER
BULLDOZER S/N 1AH740-UP,1BH779-UP,1CH1563-UP,1DH668-UP,7GH1-UP
PART OF 4T4367, 6Y0079, 6Y0080, 6Y0081, 6Y5721 BULLDOZER ARS
AN ATTACHMENT
c541633 SEBP1741
3G9451 MOUNTING GP-CYLINDER Parts scheme
  For full view, you need register

Parts for your D6H TRACK-TYPE TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4T-4875 [2] PIN  
2. 3B-8489 [2] FITTING-GREASE  
3. 5M-3062 C [2] BOLT  
  8T-2561 [2] WASHER  
4. 7X-0358 [8] BOLT  
5. 6Y-2658 [2] YOKE  
6. 5P-2671 [2] SEAL-LIP TYPE  
7. 6Y-9280 C [2] CLAMP (TAB)  
  6Y-9281 C [2] CLAMP (SLOT)  
8. 5P-8248 C [2] WASHER-HARD  
9. 8T-4835 C [2] BOLT  
10. 8T-4223 C [4] WASHER  
11. 6V-8188 C [2] NUT  
12. 9N-4233 C [2] STRAP  
13. 3G-9405 [4] CAP AS  
    (EACH INCLUDES)
14. 3G-9402 [1] BEARING-SLEEVE  
  C   CHANGE FROM PREVIOUS TYPE
 

#SEBP17410537
 

9T-4847: ROTATING GP-PUMP

9T4847 ROTATING GP-HYDRAULIC PUMP DRIVE
9T4848-PAGE 270
PART OF 9T3749 MOTOR-PISTON LINK
c687409 SEBP1741
9T4847 ROTATING GP-PUMP Parts scheme
  For full view, you need register

Parts for your D6H TRACK-TYPE TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 9T-4848 Y [1] SHAFT GP-PUMP DRIVE  
2. 9T-1642 [1] PLATE-RETAINING  
3. 165-6969 [7] PISTON AS  
    (EACH INCLUDES)
4. 9T-1582 [2] RING  
5. 9T-2281 [6] SPRING  
6. 9T-1647 [1] PIN-CENTER  
7. 9T-1687 [1] BARREL-CYLINDER  
8. 9T-1689 [1] PLATE-PORT  
9. 2J-8163 [1] SEAL-O-RING  
10. 113-4420 M [7] SCREW (M6X20-MM)  
11. 9T-1576 B [2] SHIM (0.1MM THK)  
12. 9T-1579 B [1] SHIM (0.3MM THK)  
13. 9T-1637 [1] COVER-FRONT  
14. 6V-3326 [1] RING-RETAINING  
15. 123-5748 [1] SEAL-SHAFT  
16. 119-6117 B [1] SPACER (9.6-MM THK)  
17. 119-6118 B [1] SPACER (9.7-MM THK)  
18. 119-6119 B [1] SPACER (9.8-MM THK)  
19. 119-6120 B [1] SPACER (9.9-MM THK)  
20. 9T-1643 [1] DISC-RETAINING  
  B   USE AS REQUIRED
  M   METRIC PART
  Y   SEPARATE ILLUSTRATION
 

#SEBP17410538
 

9T-3749: MOTOR GP-PISTON

9T3749 MOTOR GP-PISTON LINK
9T4847-PAGE 269
c346345 SEBP1741
9T3749 MOTOR GP-PISTON Parts scheme
  For full view, you need register

Parts for your D6H TRACK-TYPE TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 9T-4847 Y [1] ROTATING GP-HYD PUMP DRIVE  
2. 9T-4850 [1] HOUSING  
3. 2H-3934 [1] SEAL  
4. 9T-4849 [1] HEAD  
5. 8T-4231 [1] DOWEL  
6. 9T-2005 [6] WASHER  
7. 8T-3957 [6] BOLT-HEX SOCKET  
  Y   SEPARATE ILLUSTRATION
 

#SEBP17410539
 

9T-4848: SHAFT GP-PUMP DRIVE

9T4848 SHAFT GP-HYDRAULIC PUMP DRIVE
PART OF 9T4847 ROTATING-HYDRAULIC PUMP DRIVE
c346344 SEBP1741
9T4848 SHAFT GP-PUMP DRIVE Parts scheme
  For full view, you need register

Parts for your D6H TRACK-TYPE TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 9T-4851 [1] SHAFT  
2. 9T-2004 [1] NUT-BEARING LOCK  
3. 9T-1638 [1] RING-BEARING  
4. 9W-2107 [1] CONE-ROLLER BEARING  
5. 9W-2108 [1] CUP-ROLLER BEARING  
6. 9W-2103 [1] CONE-ROLLER BEARING  
7. 9W-2104 [1] CUP-ROLLER BEARING  
 

Information:

Special Instruction
Installation of Vented Buffer Seal Assembly, U-Cup Seal, and Double Lip Wiper Seal for Hydraulic Cylinders{7562}
Installation of Vented Buffer Seal Assembly, U-Cup Seal, and Double Lip Wiper Seal for Hydraulic Cylinders{7562}
Installation of Double Lip Wiper Seal{7562}
Installation of Double Lip Wiper Seal{7562}
Installation of Double Lip Wiper Seal{7562}
Installation of Double Lip Wiper Seal{7562}
Technical Information Bulletin
Surface Finishes of Cylinder Bores{7562}
Surface Finishes of Cylinder Bores{7562}
Color Change for Cylinder Rod Seals (Wiper, U-Cup and Buffer){5100, 7555, 7562}
Color Change for Cylinder Rod Seals (Wiper, U-Cup and Buffer){5100, 7555, 7562}
Tool Operating Manual
Procedures for Using the 232-4686 Cylinder Washer Tank Group European Union Compliant{0374, 0599, 0680, 0738}
Procedures for Using the 232-4686 Cylinder Washer Tank Group European Union Compliant{0374, 0599, 0680, 0738}
1U-9001 and 1U-9002 Automatic Hone Tooling{0599, 0677, 0738, 7562, 7562}
1U-9001 and 1U-9002 Automatic Hone Tooling{0599, 0677, 0738, 7562, 7562}
Model HCS-40 Hydraulic Cylinder Servicer{0374, 0599, 0700, 0738, 7562}
Model HCS-40 Hydraulic Cylinder Servicer{0374, 0599, 0700, 0738, 7562}
4C-9910 Portable Hydraulic Tester (Flow 125 GPM) {0599, 0784, 5050, 5057, 5095}
4C-9910 Portable Hydraulic Tester (Flow 125 GPM) {0599, 0784, 5050, 5057, 5095}
Using the 265-4177, 265-4209 Service Tool Groups to Install Sensors in Position-Sensing Hydraulic Cylinders{0599, 0709, 0738, 1439, 7562, 7562}
Using the 265-4177, 265-4209 Service Tool Groups to Install Sensors in Position-Sensing Hydraulic Cylinders{0599, 0709, 0738, 1439, 7562, 7562}
Using the 9U-7868 and 9U-7869 Spanner Wrench to Remove and install Threaded Gland Cylinder Heads{0374, 0599, 0602, 0738}
Using the 9U-7868 and 9U-7869 Spanner Wrench to Remove and install Threaded Gland Cylinder Heads{0374, 0599, 0602, 0738}
Procedures for Using the 120-9143 Cylinder Washer Tank Group {0374, 0602, 0680, 0738}
Procedures for Using the 120-9143 Cylinder Washer Tank Group {0374, 0602, 0680, 0738}
Reuse And Salvage Guidelines
HVOF Identification and Polishing (Superfinishing){0674, 0679, 1000, 7000, 7562}
HVOF Identification and Polishing (Superfinishing){0674, 0679, 1000, 7000, 7562}
Service Magazine
Double Lip Wiper Seals Must Be Installed Properly {7562}
2002/12/09
Procedure Now Available to Test the Position Sensor of a Hydraulic Cylinder {1439, 7562}
2012/10/04
Compatible Puller Stud and Hydraulic Cylinder Capacity Chart {0599, 7000, 7562}
2009/01/05
A Rework Procedure Improves the Seal Assembly Performance in Hydraulic Cylinders on Cat Products {7562}
2010/04/30

Caterpillar Parts SIS Catalog D6H :

CYLINDER GP-BULLDOZER LIFT
9T-8952 CYLINDER GP-BULLDOZER LIFT
VALVE & CYLINDER GP
8E-1240 VALVE & CYLINDER GP
VALVE & CYLINDER GP
8E-1238 VALVE & CYLINDER GP
LINES GP-TILT CYLINDER
3W-3107 LINES GP-TILT CYLINDER
LINES GP-TILT CYLINDER
3W-3107 LINES GP-TILT CYLINDER
CYLINDER GP-TILT
9T-6095 CYLINDER GP-TILT
9W-9057 CYLINDER AR-TILT
LINES GP-RIPPER
9W-1018 LINES GP-RIPPER
CYLINDER GP-TILT
1U-3991 CYLINDER GP-TILT
CYLINDER GP-BULLDOZER LIFT
1U-3989 CYLINDER GP-BULLDOZER LIFT
CYLINDER GP-BULLDOZER LIFT
1U-3990 CYLINDER GP-BULLDOZER LIFT
ADAPTER GP-MOTOR
9W-5269 ADAPTER GP-MOTOR
MOUNTING GP-CYLINDER
3G-9451 MOUNTING GP-CYLINDER
MOUNTING GP-CYLINDER
3G-9451 MOUNTING GP-CYLINDER
ROTATING GP-PUMP
9T-4847 ROTATING GP-PUMP
MOTOR GP-PISTON
9T-3749 MOTOR GP-PISTON

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The names Cat, Caterpillar, John Deere, Komatsu, Volvo, Hitachi, Doosan, JCB, Hyundai or any other original equipment manufacturers are registered trademarks of the respective original equipment manufacturers. All names, descriptions, numbers and symbols are used for reference purposes only.
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