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2G3821 CUSHION HITCH GEAR PUMP GROUP Serial No. 26W595, 597 To 603 & 26W607-Up & 27W1735-Up 9T1619-Page 200B 637D


FRAME AND BODY
HITCH GP
HYDRAULIC SYSTEM
PUMP GP
CONTROL GP-PUSH-PULL

WHEEL TRACTOR 637D WHEEL TRACTOR 26W
 637D TRACTORS 26W00001-UP (MACHINE) POWERED BY 3408 ENGINE SEBP1058 637D 26W   (1975)

FRAME AND BODY

HITCH GP
VALVE GP-CUSHION HITCH CONT
9J-5740 VALVE GP-CUSHION HITCH CONT
PUMP GP-CUSHION HITCH GEAR
2G-3821 PUMP GP-CUSHION HITCH GEAR
PUMP GP-CUSHION HITCH GEAR
2G-3821 PUMP GP-CUSHION HITCH GEAR
CUSHION HITCH LINES GROUP
9J-1028 CUSHION HITCH LINES GROUP
CUSHION HITCH LINES GROUP
9J-1028 CUSHION HITCH LINES GROUP
CUSHION HITCH LINES GROUP
9J-1028 CUSHION HITCH LINES GROUP
 

#SEBP10581020
 

2G-3821: PUMP GP-CUSHION HITCH GEAR

2G3821 CUSHION HITCH GEAR PUMP GROUP
Serial No. 26W595, 597 To 603 & 26W607-Up & 27W1735-Up
9T1619-Page 200B
c334119 SEBP1058
2G3821 PUMP GP-CUSHION HITCH GEAR Parts scheme
  For full view, you need register

Parts for your 637D WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 1D-4717 [2] NUT  
  3B-4506 [2] LOCKWASHER  
2. 6D-1004 [1] GASKET  
3. 8D-5311 [1] COUPLING  
4. 9T-1619 CY [1] PUMP GP-GEAR  
  C   CHANGE FROM PREVIOUS TYPE
  Y   SEPARATE ILLUSTRATION
 

#SEBP10581021
 

8J-6151: PUMP GP-GEAR

8J6151 GEAR PUMP GROUP
Serial No. 26W1 To 26W606 Inclusive & 27W1 To 27W1734 Inclusive
Part Of 2G3821 Cushion Hitch Gear Pump
c329690 SEBP1058
8J6151 PUMP GP-GEAR Parts scheme
  For full view, you need register

Parts for your 637D WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 1T-0131 [8] BOLT  
2. 1U-3129 [1] SPACER  
3. 2D-9359 [2] SEAL-LIP TYPE  
4. 1U-3130 C [1] PLUG  
5. 9S-4191 C [1] PLUG-O-RING  
  3J-1907 C [1] SEAL  
    THE FOLLOWING REPAIR
    KIT IS AVAILABLE:
  1U-3131 [1] KIT-SEAL (SEAL)  
  C   CHANGE FROM PREVIOUS TYPE
 

#SEBP10581022
 

1U-2033: GEAR PUMP GROUP

1U2033 GEAR PUMP GROUP--FIELD INSTALLATION
Provides A Pump Which Is Compatible With Fire Resistant Fluids
c176404 SEBP1058
1U2033 GEAR PUMP GROUP Parts scheme
  For full view, you need register

Parts for your 637D WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 1U-3130 [1] PLUG  
2. 2D-9359 [2] SEAL  
3. 1U-3129 [1] SPACER  
4. 1T-0131 [8] BOLT  
    THE FOLLOWING REPAIR KIT IS AVAILABLE:
  1U-3131 [1] KIT (Seal)  
    (Includes Seals & Rings)
 

#SEBP10581023
 

9T-1619: PUMP GP-GEAR

9T1619 GEAR PUMP GROUP
Serial No. 26W595, 597 To 603 & 26W607-Up & 27W1735-Up
Part Of 2G3821 Cushion Hitch Gear Pump
c334121 SEBP1058
9T1619 PUMP GP-GEAR Parts scheme
  For full view, you need register

Parts for your 637D WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 2B-2006 [4] BOLT  
  5P-8245 [4] WASHER  
    THE FOLLOWING REPAIR
    KIT IS AVAILABLE:
  9T-1015 [1] KIT-SEAL (SEAL)  
    (INCLUDES SEALS,
    RINGS & PLUG)
 

#SEBP10581024
 

9D-6300: CONTROL GP-PUSH/PULL

9D6300 PUSH-PULL CONTROL GROUP--Part 1 of 3
Serial No. 27W1 to 27W661 inclusive
8J9259 Valve parts are shown on Page 204
c208256 SEBP1058
9D6300 CONTROL GP-PUSH/PULL Parts scheme
  For full view, you need register

Parts for your 637D WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 030-7946 [3] ELBOW  
2. 3J-7354 [3] SEAL  
3. 8J-9259 Y [1] VALVE GROUP  
    (Separate Illustration)
4. 009-4391 [1] HOSE ASSEM.  
5. 9D-6204 [2] HOSE ASSEM.  
    (Each Includes)
  5P-0179 H HOSE 64.3 cm(25.31 in.)  
6. 5S-9593 [1] STEM ASSEM. (90 degrees)  
7. 3S-8606 [2] SLEEVE  
8. 8S-6391 [1] COUPLING ASSEM. (90 degrees)  
9. 4J-5267 [2] SEAL  
10. 7K-1181 [1] STRAP  
11. 9D-6207 [1] HOSE ASSEM.  
12. 8M-2773 [1] CLIP  
13. 2P-1281 [2] UNION  
14. 7F-2050 [2] LOCKNUT  
15. 8S-5619 [1] HOSE ASSEM.  
    (Includes)
  5P-0179 H HOSE 32.2 cm(15.1 in.)  
16. 8S-4055 [2] STEM ASSEM. (straight)  
17. 3S-8606 [2] SLEEVE  
18. 2D-1247 [1] CLIP (large)  
  1S-1476 [1] CLIP (small)  
19. 030-7948 [1] ELBOW  
  3K-0360 [1] SEAL  
20. 3S-2093 [3] STRAP  
21. 8S-9191 [2] BOLT 10.1 cm(4 in.) long  
  0S-1608 [1] BOLT 9.5 cm(3.75 in.) long  
  3B-4506 [3] LOCKWASHER  
22. 2P-7216 [2] ELBOW  
  H   ORDER BY THE CENTIMETRE
  Y   SEPARATE ILLUSTRATION
 

#SEBP10581025
 

9D-6300: CONTROL GP-PUSH/PULL

9D6300 PUSH-PULL CONTROL GROUP--Part 2 of 3
Serial No. 27W1 to 27W661 inclusive
8J5623 Valve parts are shown on Page 200
c227421 SEBP1058
9D6300 CONTROL GP-PUSH/PULL Parts scheme
  For full view, you need register

Parts for your 637D WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 9D-6203 [1] HOSE ASSEM.  
    (Includes)
  9S-0671 CH HOSE 36.06 in.(91.6 cm)  
  9S-9727 [1] COUPLING ASSEM. (45 degrees)  
2. 3S-8606 [2] SLEEVE  
3. 8S-4055 C [1] COUPLING ASSEM. (straight)  
4. 5P-2191 [1] TEE  
  7K-9197 [1] ELBOW  
5. 3K-0360 [1] SEAL  
6. 9D-5920 [1] TUBE ASSEM.  
7. 3J-7352 [1] CONNECTOR  
8. 3J-7354 [3] SEAL  
9. 8J-8742 [1] LEVER  
  6D-3886 [1] BEARING  
  6D-3909 C [1] PIN  
  3B-4607 [1] COTTER PIN  
10. 0S-1616 [1] BOLT  
11. 030-7946 [2] ELBOW  
12. 0S-1594 [2] BOLT  
13. 3B-4506 [6] LOCKWASHER  
14. 4B-4278 [4] WASHER  
15. 8J-8758 [1] ARM ASSEM.  
16. 8J-5623 Y [1] VALVE GROUP  
    (Separate Illustration)
17. 3B-1915 [2] BOLT  
  1D-4717 [2] NUT  
18. 8J-8752 [1] PLATE  
19. 0L-1351 [2] BOLT  
20. [1] HOSE ASSEM.  
21. 5B-3254 [2] NUT  
  C   INDICATES CHANGE
  Y   SEPARATE ILLUSTRATION
  H   ORDER BY THE INCH
 

#SEBP10581026
 

9D-6300: CONTROL GP-PUSH/PULL

9D6300 PUSH-PULL CONTROL GROUP--Part 3 of 3
Serial No. 27W1 to 27W661 inclusive
c159700 SEBP1058
9D6300 CONTROL GP-PUSH/PULL Parts scheme
  For full view, you need register

Parts for your 637D WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 2G-3947 [1] HOSE ASSEM.  
    (Includes)
  5P-0180 H HOSE 75 cm(29.53 in.)  
  3S-8362 [1] STEM ASSEM. (67.5 degrees)  
2. 3S-7166 [2] SLEEVE  
3. 5S-6102 [1] STEM ASSEM. (90 degrees)  
4. 4J-5267 [2] SEAL  
5. 4J-0520 [1] SEAL  
6. 1P-4576 [2] FLANGE  
7. 3B-1915 [4] BOLT  
8. 4B-4278 [4] WASHER  
9. 1P-4578 [4] FLANGE  
10. 3H-5368 [8] BOLT  
  4B-4279 [8] WASHER  
11. 2G-3948 [1] HOSE ASSEM.  
    (Includes)
  5P-0181 H HOSE 247 cm(97.24 in.)  
12. 7S-0575 [1] STEM ASSEM. (90 degrees)  
13. 3S-7252 [2] SLEEVE  
14. 7S-0573 [1] STEM ASSEM. (45 degrees)  
15. 4J-0522 [2] SEAL  
16. 7S-8920 [3] CLIP  
  7S-8921 [3] CLIP (tab)  
17. 6D-3479 [3] CLIP  
18. 2G-4475 [1] HOSE ASSEM.  
19. 030-7944 [1] ELBOW  
20. 3D-2824 [2] SEAL  
21. 2P-8421 [1] ADAPTER  
  3J-1907 [1] SEAL  
22. 7J-4026 C [1] ELBOW  
23. 4S-4455 [2] CLIP  
24. 9D-6213 [1] HOSE ASSEM.  
    (Includes)
  5P-0180 H HOSE 221 cm(87.01 in.)  
  3S-8363 [1] STEM ASSEM. (90 degrees)  
25. 3S-7166 [2] SLEEVE  
26. 8S-3759 [1] COUPLING ASSEM. (straight)  
27. 7K-1181 C [2] STRAP  
  H   ORDER BY THE CENTIMETRE
 

#SEBP10581027
 

9D-6300: CONTROL GP-PUSH/PULL

9D6300 PUSH-PULL CONTROL GROUP--Part 1 of 3
Serial No. 27W662 to 27W984 inclusive
3G2901 Valve parts are shown on Page 204A
c166348 SEBP1058
9D6300 CONTROL GP-PUSH/PULL Parts scheme
  For full view, you need register

Parts for your 637D WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 030-7946 [3] ELBOW  
2. 3J-7354 [3] SEAL  
3. 3G-2901 YC [1] VALVE GROUP  
    (Separate Illustration)
4. 009-4391 [1] HOSE ASSEM.  
5. 9D-6204 [2] HOSE ASSEM.  
    (Each Includes)
  5P-0179 H HOSE 64.3 cm(25.31 in.)  
6. 5S-9593 [1] STEM ASSEM. (90 degrees)  
7. 3S-8606 [2] SLEEVE  
8. 8S-6391 [1] COUPLING ASSEM. (90 degrees)  
9. 4J-5267 [2] SEAL  
10. 7K-1181 [1] STRAP  
11. 9D-6207 [1] HOSE ASSEM.  
12. 8M-2773 [1] CLIP  
13. 2P-1281 [2] UNION  
14. 7F-2050 [2] LOCKNUT  
15. 8S-5619 [1] HOSE ASSEM.  
    (Includes)
  5P-0179 H HOSE 32.2 cm(15.1 in.)  
16. 8S-4055 [2] STEM ASSEM. (straight)  
17. 3S-8606 [2] SLEEVE  
18. 5P-2370 C [1] CLIP  
  4B-4280 C [1] WASHER  
19. 030-7948 [1] ELBOW  
  3K-0360 [1] SEAL  
20. 3S-2093 [3] STRAP  
21. 8S-9191 [2] BOLT 10.1 cm(4 in.) long  
  0S-1608 [1] BOLT 9.5 cm(3.75 in.) long  
  3B-4506 [3] LOCKWASHER  
22. 2P-7216 [2] ELBOW  
  C   INDICATES CHANGE
  Y   SEPARATE ILLUSTRATION
  H   ORDER BY THE CENTIMETRE
 

#SEBP10581028
 

9D-6300: CONTROL GP-PUSH/PULL

9D6300 PUSH-PULL CONTROL GROUP--Part 2 of 3
Serial No. 27W662 to 27W984 inclusive
8J5623 Valve parts are shown on Page 200
c227422 SEBP1058
9D6300 CONTROL GP-PUSH/PULL Parts scheme
  For full view, you need register

Parts for your 637D WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 9D-6203 [1] HOSE ASSEM.  
    (Includes)
  9S-0671 CH HOSE 36.06 in. (91.6 cm)  
  9S-9727 [1] COUPLING ASSEM. (45 degrees)  
2. 3S-8606 [2] SLEEVE  
3. 8S-4055 C [1] COUPLING ASSEM. (straight)  
4. 5P-2191 [1] TEE  
  7K-9197 [1] ELBOW  
5. 3K-0360 [1] SEAL  
6. 9D-5920 [1] TUBE ASSEM.  
7. 3J-7352 [1] CONNECTOR  
8. 3J-7354 [3] SEAL  
9. 8J-8742 [1] LEVER  
  6D-3886 [1] BEARING  
  6D-3909 C [1] PIN  
  3B-4607 [1] COTTER PIN  
10. 0S-1616 [1] BOLT  
11. 030-7946 [2] ELBOW  
12. 0S-1594 [2] BOLT  
13. 3B-4506 [6] LOCKWASHER  
14. 4B-4278 [4] WASHER  
15. 8J-8758 [1] ARM ASSEM.  
16. 8J-5623 Y [1] VALVE GROUP  
    (Separate Illustration)
17. 3B-1915 [2] BOLT  
  1D-4717 [2] NUT  
18. 8J-8752 [1] PLATE  
19. 0L-1351 [2] BOLT  
20. [1] HOSE ASSEM.  
21. 5B-3254 [2] NUT  
  C   INDICATES CHANGE
  Y   SEPARATE ILLUSTRATION
  H   ORDER BY THE INCH
 

#SEBP10581029
 

9D-6300: CONTROL GP-PUSH/PULL

9D6300 PUSH-PULL CONTROL GROUP--Part 3 of 3
Serial No. 27W662 to 27W984 inclusive
c166349 SEBP1058
9D6300 CONTROL GP-PUSH/PULL Parts scheme
  For full view, you need register

Parts for your 637D WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 2G-3947 [1] HOSE ASSEM.  
    (Includes)
  5P-0180 H HOSE 75 cm(29.53 in.)  
  3S-8362 [1] STEM ASSEM. (67.5 degrees)  
2. 3S-7166 [2] SLEEVE  
3. 5S-6102 [1] STEM ASSEM. (90 degrees)  
4. 4J-5267 [2] SEAL  
5. 4J-0520 [1] SEAL  
6. 1P-4576 [2] FLANGE  
7. 3B-1915 [4] BOLT  
8. 4B-4278 [4] WASHER  
9. 1P-4578 [4] FLANGE  
10. 3H-5368 [8] BOLT  
  4B-4279 [8] WASHER  
11. 2G-3948 [1] HOSE ASSEM.  
    (Includes)
  5P-0181 H HOSE 247 cm(97.24 in.)  
12. 7S-0575 [1] STEM ASSEM. (90 degrees)  
13. 3S-7252 [2] SLEEVE  
14. 7S-0573 [1] STEM ASSEM. (45 degrees)  
15. 4J-0522 [2] SEAL  
16. 7S-8920 [3] CLIP  
  7S-8921 [3] CLIP (tab)  
17. 6D-3479 [3] CLIP  
18. 2G-4475 [1] HOSE ASSEM.  
19. 030-7944 [1] ELBOW  
20. 3D-2824 [2] SEAL  
21. 2P-8421 [1] ADAPTER  
  3J-1907 [1] SEAL  
22. 7J-4026 [1] ELBOW  
23. 4S-4455 [2] CLIP  
24. 9D-6213 [1] HOSE ASSEM.  
    (Includes)
  5P-0180 H HOSE 221 cm(87.01 in.)  
  3S-8363 [1] STEM ASSEM. (90 degrees)  
25. 3S-7166 [2] SLEEVE  
26. 8S-3759 [1] COUPLING ASSEM. (straight)  
27. 7K-1181 [2] STRAP  
  H   ORDER BY THE CENTIMETRE
 

Information:

Caterpillar Parts SIS Catalog 637D :

VALVE GP-KICKOUT
8J-5623 VALVE GP-KICKOUT
PUMP GP-CUSHION HITCH GEAR
2G-3821 PUMP GP-CUSHION HITCH GEAR
PUMP GP-GEAR
1U-4758 PUMP GP-GEAR
PUMP GP-GEAR
9D-2975 PUMP GP-GEAR
PUMP GP-GEAR
9J-2022 PUMP GP-GEAR
PUMP GP-GEAR
9D-2975 PUMP GP-GEAR
VALVE GP-BREAKER RELIEF
2G-8227 VALVE GP-BREAKER RELIEF
RIB AS
6G-3546 RIB AS
PUMP GP-GEAR
8J-6151 PUMP GP-GEAR
GEAR PUMP GROUP
1U-2033 GEAR PUMP GROUP
PUMP GP-GEAR
9T-1619 PUMP GP-GEAR
CONTROL GP-PUSH/PULL
9D-6300 CONTROL GP-PUSH/PULL
CONTROL GP-PUSH/PULL
9D-6300 CONTROL GP-PUSH/PULL
CONTROL GP-PUSH/PULL
9D-6300 CONTROL GP-PUSH/PULL
CONTROL GP-PUSH/PULL
9D-6300 CONTROL GP-PUSH/PULL
CONTROL GP-PUSH/PULL
9D-6300 CONTROL GP-PUSH/PULL

Truck sale:

1979 CAT 637D
Call 
1979 CAT 637D

SEATTLE TRACTOR INT'L
Ravensdale, Washington
1976 CAT 637D
Call 
1976 CAT 637D

SEATTLE TRACTOR INT'L
Ravensdale, Washington
1978 CAT 637D
Call 
1978 CAT 637D

SEATTLE TRACTOR INT'L
Ravensdale, Washington
1978 CAT 637D
Call 
1978 CAT 637D

SEATTLE TRACTOR INT'L
Ravensdale, Washington
1979 CAT 637D
Call 
1979 CAT 637D

SEATTLE TRACTOR INT'L
Ravensdale, Washington
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