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4N9600 COOLANT FLOW SWITCH GROUP Engine Serial No. 48W1 To 48W684 Inclusive 637D WHEEL TRACTOR




ELECTRICAL AND STARTING SYSTEM

SWITCH GP
 

#SEBP10580340
 

4N-9600: SWITCH GP-COOLANT FLOW

4N9600 COOLANT FLOW SWITCH GROUP
Engine Serial No. 48W1 To 48W684 Inclusive
c208211 SEBP1058
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Parts for your 637D WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 6N-1969 [1] SWITCH ASSEM.  
2. 2B-2695 [2] BOLT  
3. 9M-1974 [2] WASHER  
4. 4N-3841 [1] GASKET  
 

#SEBP10580341
 

2G-4530: WARNING GP-BACK-UP

2G4530 BACK-UP WARNING GROUP
Serial No. 26W384 To 26W590 & 27W640 To 27W1680 Incl. Also Attachment
At Serial No. 26W1 To 26W3834 & 27W1 To 27W639 Inclusive
For Use With 2G4520 Back-Up Warning Group Shown In Scraper Book
c306060 SEBP1058
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Parts for your 637D WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 2G-4542 [1] HARNESS AS  
  5P-5629 B WIRE (14GA)  
2. 0S-0509 [2] BOLT  
  3B-4506 [2] LOCKWASHER  
3. 4D-9164 [2] CLIP  
4. 9D-8508 C [1] GROMMET  
5. 3P-8990 [1] SWITCH AS  
6. 5B-2183 [2] NUT-JAM  
  4S-5353 [2] WASHER  
7. 8D-5578 [1] MAGNET AS  
  6D-9704 [1] MAGNET-CERAMIC  
  6D-9677 [1] FILTER  
  6D-9705 [1] COVER  
  2L-6726 [1] RING-RETAINING  
8. 1J-8668 [1] STUD-TAPERLOCK  
9. 1B-2578 [2] NUT  
10. 9D-1253 [1] TUBE  
11. 1P-0810 BC TAPE  
12. 3K-8782 CF [1] FUSE (10 AMP)  
  B   USE AS REQUIRED
  C   CHANGE FROM PREVIOUS TYPE
  F   NOT SHOWN
 

#SEBP10580342
 

2G-4530: WARNING GP-BACK-UP

2G4530 BACK-UP WARNING GROUP
Serial No. 26W591-Up & 27W1681-Up
For Use With 2G4520 Back-Up Warning Group In Scraper Book
c329443 SEBP1058
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Parts for your 637D WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 2G-4542 [1] HARNESS AS  
2. 0S-0509 [2] BOLT  
  5M-2894 C [2] WASHER  
3. 4D-9164 [2] CLIP  
4. 9D-8508 [1] GROMMET  
5. 9G-2795 C [1] SWITCH AS  
    (BACK-UP ALARM)
6. 6V-8370 [1] NUT-HEX  
  2H-3922 [1] LOCKWASHER  
7. 6V-8363 [2] SCREW  
  8F-1434 [2] LOCKWASHER  
8. 5T-5264 C [1] BRACKET AS  
9. 8S-4744 [1] BOLT  
10. 5B-2183 C [1] NUT-JAM  
  4S-5353 CB [3] WASHER  
11. 8L-5202 C [1] BOLT  
  1B-2578 [1] NUT  
12. 5T-5457 C [2] WIRE AS  
13. 1P-0810 CB TAPE  
14. 9D-1253 [1] TUBE  
15. 2G-6437 [1] WIRE AS  
  3K-8782 F [1] FUSE (10 AMP) (10 AMP)  
    (BACK-UP ALARM)
  B   USE AS REQUIRED
  C   CHANGE FROM PREVIOUS TYPE
  F   NOT SHOWN
 

#SEBP10580343
 

4N-3900: SWITCH GP-COOLANT FLOW

4N3900 COOLANT FLOW SWITCH GROUP
Engine Serial No. 48W685-Up
c212799 SEBP1058
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Parts for your 637D WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4N-3899 [ 1] SWITCH ASSEM.  
2. 2B-2695 [ 2] BOLT  
  3B-4505 [ 2] LOCKWASHER  
  4B-4277 [ 2] WASHER  
3. 4N-3841 [ 1] GASKET  
 

#SEBP10580344
 

9D-4280: BATTERY WIRING AND LIGHTING GROUP

9D4280 BATTERY, WIRING AND LIGHTING GROUP--24 Volt--Part 1 of 6
Serial No. 26W1 to 324, 327 to 331, 336, 338, 340 to 343, 345, 351 and 26W353 inclusive and 27W1 to 493,
495, 497 to 503, 505, 507, 514 to 516, 518, 519, 523 to 532, 534 to 542, 544, 545, 554, 556, 559, 562, 567,
572 to 574, 578, 581, 583 to 586 and 27W596 inclusive. 6N9585 and 6N9586 Lamp parts are shown on Page 88A
c159842 SEBP1058
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Parts for your 637D WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 5D-3183 [4] NUT  
  013-8502 [4] LOCKWASHER  
  2B-8352 [8] WASHER  
2. 6N-9586 YC [4] LAMP ASSEM.  
    (Separate Illustration)
3. 8D-9029 [1] HARNESS ASSEM.  
    (Includes)
  5P-5629 J WIRE (14 gauge)  
4. 2L-8066 [2] TERMINAL  
5. 2L-8076 [2] TERMINAL  
6. 1H-5166 [6] CLIP  
7. 4S-9219 [2] BATTERY  
    (Each Includes)
8. 7S-5041 [6] PLUG  
9. 3D-2367 [2] ROD  
10. 1D-4719 [4] NUT  
11. 4D-3502 [1] HOLD DOWN ASSEM.  
12. 6D-0058 [2] HOLD DOWN  
13. 3B-4508 [3] LOCKWASHER  
  1B-3310 [2] WASHER  
  4K-8302 [1] CLIP  
14. 4D-5882 [1] CABLE ASSEM.  
    (Includes)
  5P-0747 CABLE 19.69 cm(7.75 in.)  
15. 5M-9204 [1] TERMINAL ASSEM.  
16. 5M-9205 [1] TERMINAL ASSEM.  
    (Each Includes)
17. 1M-6119 [1] BOLT  
  1M-6120 [1] NUT  
18. 2G-1475 [1] PLATE  
  2G-1476 [2] CLAMP  
19. 0L-1351 [2] BOLT  
20. 3B-4506 [7] LOCKWASHER  
21. 5D-7762 [1] CABLE ASSEM.  
    (Includes)
  5P-0747 H CABLE 386 cm(152 in.)  
  2M-0913 [1] TERMINAL (disconnect)  
22. 3D-2098 [1] TERMINAL ASSEM.  
    (Includes)
  1M-6119 [1] BOLT  
  1M-6120 [1] NUT  
23. 7K-2045 [1] CABLE ASSEM.  
    (Includes)
  5P-0747 H CABLE 294.6 cm(116 in.)  
  1S-7251 TERMINAL (solenoid)  
24. 3D-2098 [1] TERMINAL ASSEM.  
    (Includes)
  1M-6119 [1] BOLT  
  1M-6120 [1] NUT  
25. 5K-8451 [5] CLIP  
26. 0S-0509 [5] BOLT  
27. 6N-9585 YC [2] LAMP ASSEM.  
    (Separate Illustration)
  J   ORDER BY THE METRE
  Y   SEPARATE ILLUSTRATION
  H   ORDER BY THE CENTIMETRE
 

#SEBP10580345
 

9D-4280: BATTERY WIRING AND LIGHTING GROUP

9D4280 BATTERY, WIRING AND LIGHTING GROUP--24 Volt--Part 2 of 6
Serial No. 26W1 to 324, 327 to 331, 336, 338, 340 to 343, 345, 351 and 26W353 inclusive and 27W1 to 493, 495, 497 to 503,
505, 507, 514 to 516, 518, 519, 523 to 532, 534 to 542, 544, 545, 554, 556, 559, 562, 567, 572 to 574, 578, 581, 583 to 586
and 27W596 inclusive. 8D9598 Harness and 2G1604 Lamp parts are shown on Page 87
c160715 SEBP1058
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Parts for your 637D WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4B-1320 [2] SCREW  
  3B-4504 [2] LOCKWASHER  
2. 2H-1855 [1] SWITCH (dimmer)  
3. 7D-7388 [5] SOCKET AND WIRE ASSEM.  
    (Each Includes)
  4S-1988 [1] TERMINAL  
  4D-9981 [5] LENS  
  5D-0019 [5] BULB  
  4D-9982 [5] SPRING  
4. 7D-7249 [1] PLATE  
5. 7D-7715 [1] WIRE ASSEM.  
    (Includes)
  5P-5629 J WIRE .107 m(4.25 in.)  
  2L-8076 [1] TERMINAL (socket assem.)  
6. 4L-3916 [1] TERMINAL  
7. 7D-7378 [2] INDICATOR (low pressure)  
8. 2G-1604 Y [2] LAMP GROUP  
    (Separate Illustration)
  6F-7047 [2] WASHER  
9. 8D-8581 [1] WIRE ASSEM.  
    (Includes)
  5P-5629 J WIRE .25 m(10 in.)  
10. 2L-8076 [2] TERMINAL  
11. 4D-6066 [1] STRIP (terminal)  
  4D-6238 [2] STRIP (jumper)  
  4B-1232 [4] SCREW  
  3B-4502 [4] LOCKWASHER  
12. 8D-9598 Y [1] HARNESS ASSEM.  
    (Separate Illustration)
13. 7S-6402 [1] SWITCH ASSEM. (3 position)  
    (Includes)
  7S-5432 [1] KNOB  
  4D-4811 [1] PLATE  
14. 6D-4749 [1] CIRCUIT BREAKER (2 amp)  
  3D-9799 [2] SCREW  
15. 8D-5203 [1] HORN  
  8D-5019 [1] GASKET  
16. 0S-0509 [3] BOLT  
  3B-4506 [3] LOCKWASHER  
  9D-5479 [3] CLIP  
17. 4D-6983 [1] PLATE  
18. 4D-1836 [1] SWITCH (toggle)  
19. 3F-1006 [1] SWITCH (push)  
20. 8D-0255 [1] PLATE  
21. 9D-9004 [1] PLATE  
22. 8S-7713 [2] SWITCH ASSEM. (heat start)  
    (Each Includes)
  8F-3437 [1] LEVER  
  5L-7200 [1] SCREW  
  3B-4501 [1] LOCKWASHER  
23. 6D-7936 [1] PLATE  
24. 1M-3363 [1] PLATE  
25. 9S-0174 [1] CIRCUIT BREAKER (60 amp)  
26. 5L-4507 [2] SCREW  
27. 4D-4785 [1] SWITCH (pressure)  
28. 2P-1270 [1] SENDER (water temperature)  
29. 8D-9034 C [1] PLATE  
  J   ORDER BY THE METRE
  Y   SEPARATE ILLUSTRATION
 

#SEBP10580346
 

9D-4280: BATTERY WIRING AND LIGHTING GROUP

9D4280 BATTERY, WIRING AND LIGHTING GROUP--24 Volt--Part 3 of 6
Serial No. 26W1 to 324, 327 to 331, 336, 338, 340 to 343, 345, 351 and 26W353 inclusive and 27W1 to 493, 495, 497 to 503, 505,
507, 514 to 516, 518, 519, 523 to 532, 534 to 542, 544, 545, 554, 556, 559, 562, 567, 572 to 574, 578, 581, 583 to 586 and
27W596 inclusive. 9D9084, 9D4455 and 8D9599 Harness parts are shown on Pages 83B, 84B and 86
c159843 SEBP1058
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Parts for your 637D WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 9D-4455 Y [1] HARNESS ASSEM.  
    (Separate Illustration)
2. 5P-6627 J LOCKWIRE 1.4 m(55.12 in.)  
3. 7D-1728 [1] CLIP  
5. 8D-9599 Y [1] HARNESS ASSEM.  
    (Separate Illustration)
6. 4H-8310 [4] STRAP  
7. 0S-1614 [2] BOLT  
8. 3B-4504 [10] LOCKWASHER  
9. 9D-9813 [1] BRACKET  
10. 9D-9084 Y [1] HARNESS ASSEM.  
    (Separate Illustration)
11. 9F-3099 [4] SWITCH (magnetic)  
    (Each Includes)
12. 4B-2043 [2] NUT  
  4B-4501 [2] LOCKWASHER  
13. 4F-2294 [2] NUT  
  3L-6789 [2] LOCKWASHER  
  8F-0908 [2] WASHER  
14. 0S-0509 [3] BOLT  
  3B-4506 [3] LOCKWASHER  
15. 2G-4223 [1] COVER  
16. 2G-4117 [1] HARNESS ASSEM.  
    (Includes)
  5P-5629 WIRE (16 gauge)  
17. 2L-8076 [3] TERMINAL  
18. 4L-3916 [1] TERMINAL  
19. 2A-0762 [8] BOLT  
  1B-4330 [8] NUT  
20. 9D-7032 [2] SWITCH (pressure)  
21. 3L-6521 [1] TEE  
22. 033-8248 [1] CLIP  
23. 9D-6747 [1] HARNESS ASSEM.  
    (Includes)
  5P-5629 J WIRE (16 gauge)  
24. 2L-8076 [4] TERMINAL  
25. 9D-6904 [1] HARNESS ASSEM.  
    (Includes)
  5P-5629 CJ WIRE (16 gauge)  
  9D-5481 [1] DIODE ASSEM.  
  5P-7030 CJ WIRE (14 gauge)  
26. 2L-8076 [3] TERMINAL  
  J   ORDER BY THE METRE
  Y   SEPARATE ILLUSTRATION
 

#SEBP10580347
 

9D-4280: BATTERY WIRING AND LIGHTING GROUP

9D4280 BATTERY, WIRING AND LIGHTING GROUP--24 Volt--Part 4 of 6
Serial No. 26W1 to 324, 327 to 331, 336, 338, 340 to 343, 345, 351 and 26W353 inclusive and 27W1 to 493, 495, 497 to 503, 505, 507,
514 to 516, 518, 519, 523 to 532, 534 to 542, 544, 545, 554, 556, 559, 562, 567, 572 to 574, 578, 581, 583 to 586 and 27W596 inclusive
7M4291 Switch parts are shown on Page 88B
c160716 SEBP1058
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Parts for your 637D WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 7M-4291 Y [1] SWITCH ASSEM. (magnetic)  
    (Separate Illustration)
2. 0S-1614 [4] BOLT  
  3B-4504 [4] LOCKWASHER  
3. 5H-3809 [1] WIRE ASSEM.  
    (Includes)
  5P-6021 J WIRE .15 m(6 in.)  
  2L-8057 [1] TERMINAL  
4. 2L-8058 [1] TERMINAL  
5. 0S-1594 [1] BOLT  
6. 1D-4717 [1] NUT  
7. 3B-4506 [5] LOCKWASHER  
8. 9D-8374 [1] PLATE  
9. 2G-4116 [1] HARNESS ASSEM.  
    (Includes)
  5P-5629 J WIRE (14-16 gauge)  
  5P-6642 J WIRE (12 gauge)  
  5P-6021 J WIRE (8 gauge)  
10. 2L-8076 [1] TERMINAL  
11. 8M-2770 [2] CLIP  
12. 0S-0509 [6] BOLT  
13. 4D-7794 [2] CLIP  
14. 6D-7946 [1] COVER  
15. 9M-9812 [2] WIRE ASSEM.  
    (Each Includes)
  5P-6641 J WIRE .3 m(12 in.)  
16. 2L-8052 [2] TERMINAL  
17. 3K-8909 [2] LOCKWASHER  
18. 7D-3694 [1] CABLE ASSEM.  
    (Includes)
  5P-0747 H CABLE 108.59 cm(42.75 in.)  
  2M-0913 [1] TERMINAL (mag. switch)  
19. 1S-7251 [1] TERMINAL  
  H   ORDER BY THE CENTIMETRE
  Y   SEPARATE ILLUSTRATION
  J   ORDER BY THE METRE
 

#SEBP10580348
 

9D-4280: BATTERY WIRING AND LIGHTING GROUP

9D4280 BATTERY, WIRING AND LIGHTING GROUP--24 Volt--Part 5 of 6
Serial No. 26W1 to 324, 327 to 331, 336, 338, 340 to 343, 345, 351 and 26W353 inclusive and 27W1 to 493, 495, 497 to 503, 505,
507, 514 to 516, 518, 519, 523 to 532, 534 to 542, 544, 545, 554, 556, 559, 562, 567, 572 to 574, 578, 581, 583 to 586 and 27W596
inclusive. 7H7290 Switch parts are shown on Page 88B
c159844 SEBP1058
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Parts for your 637D WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 2G-4427 [1] COVER  
2. 0S-0509 [4] BOLT  
3. 3B-4506 [6] LOCKWASHER  
4. 1D-4717 [2] NUT  
5. 7H-7290 Y [1] SWITCH ASSEM. (disconnect)  
    (Separate Illustration)
  8H-8648 [1] PLATE  
6. 4D-0674 [1] WIRE ASSEM.  
    (Includes)
  5P-5622 J WIRE .41 m(16.14 in.)  
  2L-8066 [1] TERMINAL (switch)  
7. 6B-2759 [1] TERMINAL (ground)  
8. 9D-9006 [1] SWITCH (pressure)  
9. 9D-5271 [1] HARNESS ASSEM.  
10. 2G-4173 [1] COVER  
11. 2P-1270 [1] SENDER (converter temperature)  
12. 7D-7412 [1] WIRE ASSEM.  
    (Includes)
  5P-5629 J WIRE .86 m(34 in.)  
  4L-3916 [1] TERMINAL  
13. 2L-8076 [1] TERMINAL  
14. 8M-5264 [1] CABLE ASSEM.  
    (Includes)
  5P-0747 H CABLE 205.74 cm(81 in.)  
15. 2M-0913 [1] TERMINAL  
16. 1S-7251 [1] TERMINAL  
17. 9M-8406 [3] CLIP  
18. 9D-9101 [1] WIRE ASSEM.  
    (Includes)
  5P-5629 J WIRE .61 m(24 in.)  
  2L-8076 [1] TERMINAL (switch)  
19. 4S-1988 [1] TERMINAL  
20. 9D-3582 [1] PLATE ASSEM.  
    (Includes)
21. 5D-0931 [1] BOSS  
22. 9F-2978 C [4] NUT (weld)  
23. 0S-1594 [2] BOLT  
  J   ORDER BY THE METRE
  Y   SEPARATE ILLUSTRATION
  H   ORDER BY THE CENTIMETRE
 

#SEBP10580349
 

9D-4280: BATTERY WIRING AND LIGHTING GROUP

9D4280 BATTERY, WIRING AND LIGHTING GROUP--24 Volt--Part 6 of 6
Serial No. 26W1 to 324, 327 to 331, 336, 338, 340 to 343, 345, 351 and 26W353 inclusive and 27W1 to 493, 495, 497 to 503,
505, 507, 514 to 516, 518, 519, 523 to 532, 534 to 542, 544, 545, 554, 556, 559, 562, 567, 572 to 574, 578, 581, 583 to 586 and
27W596 inclusive. 1M1882 Lamp parts are shown on Page 88
c208233 SEBP1058
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Parts for your 637D WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 0S-0509 [10] BOLT  
2. 3B-4506 [23] LOCKWASHER  
3. 9D-2451 [1] CABLE ASSEM.  
    (Includes)
  5P-0747 H CABLE 360.68 cm(142.19 in.)  
4. 1S-7251 [1] TERMINAL  
5. 2M-0913 [1] TERMINAL (ground)  
6. 9M-8406 [8] CLIP  
7. 6D-5474 [2] GUARD  
8. 0S-1594 [9] BOLT  
9. 4B-4278 [2] WASHER  
10. 0S-1595 [1] BOLT  
  1D-4719 [1] NUT  
  3B-4508 [1] LOCKWASHER  
11. 2G-4918 [1] CABLE ASSEM.  
    (Includes)
  5P-0747 H CABLE 790 cm(311.02 in.)  
12. 1S-7251 [2] TERMINAL  
13. 9D-5467 [2] CABLE ASSEM.  
    (Each Includes)
  5P-0747 H CABLE 589.3 cm(232 in.)  
14. 2M-0913 [2] TERMINAL (scraper harness)  
15. 9D-5448 [1] HARNESS ASSEM.  
16. 9D-6371 [1] CABLE ASSEM.  
17. 9D-8239 [12] CLAMP  
18. 2G-1042 [3] STRIP  
19. 0L-1143 [4] BOLT  
  1D-4717 [4] NUT  
  8K-3956 [4] SPACER  
20. 2G-1045 [1] PLATE  
21. 5P-6038 J WRAP 2.5 m(98.98 in.)  
22. 2G-1046 [2] PLATE  
23. 4D-7794 [4] CLIP  
24. 4D-6466 [2] CLIP  
25. 0L-1351 [2] BOLT  
26. 033-8248 [2] CLIP  
27. 1M-1882 Y [1] LAMP GROUP  
    (Separate Illustration)
28. 5D-3183 [1] NUT  
  013-8502 [1] LOCKWASHER  
  2B-8352 [2] WASHER  
29. 2B-4551 [1] BRACKET  
30. 9D-1927 [1] WIRE ASSEM.  
    (Includes)
  5P-5629 WIRE 2.9 m(114 in.)  
  4S-1988 [1] TERMINAL  
31. 2L-8076 [1] TERMINAL  
  J   ORDER BY THE METRE
  Y   SEPARATE ILLUSTRATION
  H   ORDER BY THE CENTIMETRE
 

Information:

Caterpillar Parts SIS Catalog 637D :

Truck sale:

Call 
1979 CAT 637D

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

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

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

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

SEATTLE TRACTOR INT'L
Ravensdale, Washington
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