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4N8335 AIR COMPRESSOR LINES GROUP Engine Serial No. 48W8265 to 48W11465 inclusive 637D WHEEL TRACTOR


BASIC ENGINE
AIR COMPRESSOR GP
AIR INLET AND EXHAUST SYSTEM
AIR CLEANER GP

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

BASIC ENGINE

AIR COMPRESSOR GP
LINES GP-AIR COMPRESSOR
4N-8335 LINES GP-AIR COMPRESSOR
LINES GP-AIR COMPRESSOR
4N-8335 LINES GP-AIR COMPRESSOR
LINES GP-AIR COMPRESSOR
4N-8335 LINES GP-AIR COMPRESSOR
LINES GP-AIR COMPRESSOR
4N-8335 LINES GP-AIR COMPRESSOR
LINES GP-AIR COMPRESSOR
4N-8335 LINES GP-AIR COMPRESSOR
LINES GP-AIR COMPRESSOR
4N-8335 LINES GP-AIR COMPRESSOR
AIR COMPRESSOR GP
4N-6842 AIR COMPRESSOR GP
AIR COMPRESSOR GP
4N-7378 AIR COMPRESSOR GP
AIR COMPRESSOR GP
4N-7378 AIR COMPRESSOR GP
AIR COMPRESSOR GP
4N-7378 AIR COMPRESSOR GP
 

#SEBP10580170
 

4N-8335: LINES GP-AIR COMPRESSOR

4N8335 AIR COMPRESSOR LINES GROUP
Engine Serial No. 48W8265 to 48W11465 inclusive
c225960 SEBP1058
4N8335 LINES GP-AIR COMPRESSOR Parts scheme
  For full view, you need register

Parts for your 637D WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 7K-1517 [2] ELBOW  
2. 8N-3001 C [1] TUBE ASSEM.  
3. 5K-9240 [2] ELBOW  
4. 5K-9244 C [1] ELBOW  
5. 6N-2764 [1] TUBE ASSEM.  
6. 2B-2404 [1] CLIP  
7. 9N-3280 [1] TUBE ASSEM.  
8. 2N-1287 [2] ELBOW  
9. 8M-7065 [1] GASKET  
10. 0S-1617 [2] BOLT  
11. 9M-0397 [1] ADAPTER  
12. 6N-2762 [1] TUBE ASSEM.  
13. 5K-9238 C [1] CONNECTOR  
  C   INDICATES CHANGE
 

#SEBP10580171
 

4N-8335: LINES GP-AIR COMPRESSOR

4N8335 AIR COMPRESSOR LINES GROUP
Engine Serial No. 48W11466 To 48W17213 Inclusive
c235275 SEBP1058
4N8335 LINES GP-AIR COMPRESSOR Parts scheme
  For full view, you need register

Parts for your 637D WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 7K-1517 [2] ELBOW  
2. 8N-3001 [1] TUBE ASSEM.  
3. 5K-9240 [2] ELBOW  
4. 5K-9244 [1] ELBOW  
5. 6N-2764 [1] TUBE ASSEM.  
6. 2B-2404 [1] CLIP  
7. 1W-1362 C [1] TUBE ASSEM.  
8. 2N-1287 [2] ELBOW  
9. 8M-7065 [1] GASKET  
10. 0S-1617 [2] BOLT  
11. 9M-0397 [1] ADAPTER  
12. 6N-2762 [1] TUBE ASSEM.  
13. 5K-9238 [1] CONNECTOR  
14. 5M-6214 C [1] PLUG  
  C   INDICATES CHANGE
 

#SEBP10580172
 

4N-8335: LINES GP-AIR COMPRESSOR

4N8335 AIR COMPRESSOR LINES GROUP
Engine Serial No. 48W17214-Up
c329586 SEBP1058
4N8335 LINES GP-AIR COMPRESSOR Parts scheme
  For full view, you need register

Parts for your 637D WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4W-3491 C [1] TUBE AS-OUTLET (WATER OUTLET)  
2. 9M-6522 C [1] CONNECTOR-FLARED  
3. 8M-0755 C [2] CONNECTOR  
4. 4W-3489 C [1] TUBE AS-SUPPLY (WATER SUPPLY)  
5. 3R-5387 C [2] CONNECTOR  
6. 8L-6557 C [2] CONNECTOR  
7. 8M-2772 C [1] CLIP  
8. 4W-3492 C [1] TUBE AS-SUPPLY (OIL SUPPLY)  
9. 5M-6214 [1] PLUG-PIPE  
10. 4W-1117 C [1] ADAPTER-INLET  
11. 8M-7065 [1] GASKET-AIR INLET  
12. 0S-1617 [2] BOLT  
13. 030-7949 C [1] ELBOW  
14. 2M-9780 C [1] SEAL-O-RING  
15. 4W-3490 C [1] TUBE AS-INLET (AIR INLET)  
16. 9M-4594 C [1] SPACER  
17. 0L-1352 C [1] BOLT  
  1D-4717 C [1] NUT  
  5M-2894 C [2] WASHER  
18. 5P-9299 C [1] CLIP  
19. 4K-8302 C [1] CLIP  
  C   CHANGE FROM PREVIOUS TYPE
 

#SEBP10580173
 

4N-6842: AIR COMPRESSOR GP

4N6842 AIR COMPRESSOR GROUP
4N7378-Page 45
c328256 SEBP1058
4N6842 AIR COMPRESSOR GP Parts scheme
  For full view, you need register

Parts for your 637D WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 1L-4076 C [3] STUD  
  1D-4719 [3] NUT  
  2M-0849 [3] WASHER  
2. 7W-5735 C [1] GASKET  
3. 8F-4994 [2] SEAL  
4. 4N-6004 [1] TUBE  
5. 2H-5330 [1] BOLT  
6. 5M-2894 [6] WASHER  
7. 9L-6938 [1] COVER  
  6N-0634 [1] GASKET  
8. 0L-1351 C [5] BOLT  
9. 9F-2247 [4] PLUG  
10. 5F-5434 [1] VENT AS.  
11. 9M-0378 C [2] BOLT  
  9M-1974 [2] WASHER  
12. 4N-9680 [1] GOVERNOR AS.  
13. 2S-2923 [1] COVER  
14. 6L-1883 [1] GASKET  
15. 4N-7378 RY [1] COMPRESSOR GP.  
    THE FOLLOWING REPAIR KIT IS AVAILABLE:
  9M-0402 [1] KIT (GOV. OVERHAUL)  
    (INCL. GROMMETS, SPRING, FILTER, VALVE, & COVER)
  R   REMFG PART MAY BE AVAILABLE
  Y   SEPARATE ILLUSTRATION
  C   INDICATES CHANGE
 

#SEBP10580174
 

4N-7378: AIR COMPRESSOR GP

4N7378 AIR COMPRESSOR GROUP--Type 1
Engine Serial No. 48W1 to 48W4185 inclusive
Part of 4N6842 Air Compressor Group shown on Page 44
c931856 SEBP1058
4N7378 AIR COMPRESSOR GP Parts scheme
  For full view, you need register

Parts for your 637D WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 3F-5289 [1] KEY  
2. 6N-2102 [1] ADAPTER ASSEM.  
3. 9F-2247 [1] PLUG  
4. 6N-2099 [1] CRANKCASE ASSEM.  
5. 6N-2097 [1] HEAD ASSEM. (air compressor)  
  3J-5390 [1] PLUG  
6. 3J-5389 [3] PLUG  
7. 6N-2098 [1] GASKET  
8. 6N-2104 [1] SHAFT  
9. 9L-3514 [1] SPACER  
10. 4K-8977 [1] NUT  
11. 6N-4764 [2] PISTON ASSEM.  
12. 5M-6214 [1] PLUG  
13. 6N-2100 [1] COVER ASSEM.  
14. 6N-2106 [2] ROD ASSEM.  
    THE FOLLOWING REPAIR KITS ARE AVAILABLE:
  6N-2108 [1] KIT (major repair compressor)  
    (Includes Pistons, Guide, Plunger, Seat, Spring, Saddle, Rings, Bolts, Lockwashers, Washers, Lock, Bearing, Valves and Gasket)
  6N-2109 [1] KIT (piston ring)  
 

#SEBP10580175
 

4N-7378: AIR COMPRESSOR GP

4N7378 AIR COMPRESSOR GROUP--Type 2
Engine Serial No. 48W1 to 48W4185 inclusive
Part of 4N6842 Air Compressor Group shown on Page 44
c219318 SEBP1058
4N7378 AIR COMPRESSOR GP Parts scheme
  For full view, you need register

Parts for your 637D WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 3F-5289 [1] KEY  
2. 6N-2102 [1] ADAPTER ASSEM.  
3. 9F-2247 [1] PLUG  
4. 6N-2099 [1] CRANKCASE ASSEM.  
    (Includes)
5. 9M-0381 C [2] SEAT  
6. 7N-6172 C [2] BUSHING  
7. 6N-2098 [1] GASKET  
8. 9N-2380 C [1] SHAFT  
9. 7N-0243 C [2] LOCK  
10. 6N-2106 [2] ROD ASSEM.  
11. 6N-4764 [2] PISTON ASSEM.  
12. 5M-6214 [1] PLUG  
13. 6N-2100 [1] COVER ASSEM.  
14. 6N-2097 [1] HEAD ASSEM. (air compressor)  
  3J-5390 [1] PLUG  
15. 3J-5389 [3] PLUG  
    THE FOLLOWING REPAIR KITS ARE AVAILABLE:
  6N-2108 [1] KIT (major repair--compressor)  
    (Includes Pistons, Guide, Plunger, SEAT, SPRING, SADDLE, RINGS, BOLTS, LOCKWASHERS, WASHERS, LOCK, BEARING, VALVES AND GASKET)
  6N-2109 [1] KIT (piston ring)  
  C   INDICATES CHANGE
 

#SEBP10580176
 

4N-7378: AIR COMPRESSOR GP

4N7378 AIR COMPRESSOR GROUP
Engine Serial No. 48W4186-Up
Part of 4N6842 Air Compressor Group shown on Page 44
c219695 SEBP1058
4N7378 AIR COMPRESSOR GP Parts scheme
  For full view, you need register

Parts for your 637D WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 3F-5289 [1] KEY  
2. 6N-2102 [1] ADAPTER ASSEM.  
3. 9F-2247 [1] PLUG  
4. 6N-2099 [1] CRANKCASE ASSEM.  
    (Includes)
5. 9M-0381 [2] SEAT  
6. 7N-6172 [2] BUSHING  
7. 6N-2098 [1] GASKET  
8. 9N-2380 [1] SHAFT  
9. 7N-0243 [2] LOCK  
10. 6N-2106 [2] ROD ASSEM.  
11. 7N-4837 C [2] PISTON ASSEM.  
12. 0S-1619 C [6] BOLT  
13. 6N-2100 [1] COVER ASSEM.  
14. 6N-2097 [1] HEAD ASSEM. (air compressor)  
  3J-5390 [1] PLUG  
15. 3J-5389 [3] PLUG  
16. 5P-0060 C [4] BOLT  
17. 3B-4507 C [8] LOCKWASHER  
18. 4K-2039 C [4] SEAL  
19. 5M-6509 C [2] SEAL  
20. 3L-0526 C [4] BOLT  
    THE FOLLOWING REPAIR KITS ARE AVAILABLE:
  7N-4838 C [1] KIT (major repair compressor)  
    (Includes Pistons, Guide, Plunger, Seat, Spring, Saddle, Rings, Bolts, Lockwashers, Washers, Lock, Bearing, Valves and Gasket)
  6N-2109 [1] KIT (piston ring)  
  C   INDICATES CHANGE
 

#SEBP10580177
 

4N-6849: AIR CLEANER GP

4N6849 AIR CLEANER GROUP
Serial No. 26W1 to 26W395 inclusive and 27W1 to 27W731 inclusive
c208466 SEBP1058
4N6849 AIR CLEANER GP Parts scheme
  For full view, you need register

Parts for your 637D WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 9S-2597 [1] PRECLEANER ASSEM.  
    (Includes)
  9S-2596 [1] BODY ASSEM.  
2. 0S-1591 [2] BOLT  
  1D-4717 [2] NUT  
3. 7S-3687 [1] HOOD ASSEM.  
4. 1P-7330 [1] AIR CLEANER ASSEM.  
    (Includes)
5. 1P-8483 [1] ELEMENT ASSEM. (primary)  
6. 1P-8482 [1] ELEMENT ASSEM. (secondary)  
7. 1P-8481 [1] CUP ASSEM.  
    (Includes)
8. 6N-7692 [1] GASKET  
9. 9M-3695 [2] ROD ASSEM.  
10. 2K-4973 [10] LOCKNUT  
11. 1P-9390 [1] GASKET  
12. 1T-0822 [2] BOLT  
13. 5M-2894 [12] WASHER  
 

#SEBP10580178
 

4N-6849: AIR CLEANER GP

4N6849 AIR CLEANER GROUP
Serial No. 26W396-Up and 27W732-Up
7N5974 Precleaner parts are shown on Page 46B
c179740 SEBP1058
4N6849 AIR CLEANER GP Parts scheme
  For full view, you need register

Parts for your 637D WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 7N-5974 CY [1] PRECLEANER GP  
2. 1P-7330 [1] AIR CLEANER AS  
3. 8N-5313 C [1] ELEMENT AS-PRIMARY  
4. 1P-8482 [1] ELEMENT AS-SECONDARY  
5. 1P-8481 [1] CUP AS-AIR CLEANER  
6. 6N-7692 [1] GASKET  
7. 9M-3695 [2] ROD AS  
8. 2K-4973 [10] LOCKNUT  
9. 1P-9390 [1] GASKET-OUTLET  
10. 1T-0822 [2] BOLT-12 POINT HEAD  
11. 5M-2894 C [2] WASHER  
  C   CHANGE FROM PREVIOUS TYPE
  Y   SEPARATE ILLUSTRATION
 

#SEBP10580179
 

7N-5974: PRECLEANER GP

7N5974 PRECLEANER GROUP
Serial No. 26W396-Up And 27W732-Up
Part Of 4N6849 Air Cleaner Group Shown On Page 46A
c349790 SEBP1058
7N5974 PRECLEANER GP Parts scheme
  For full view, you need register

Parts for your 637D WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 7S-3687 [1] HOOD AS  
2. 0S-1591 [1] BOLT  
  1D-4717 [1] NUT  
 

Information:

Caterpillar Parts SIS Catalog 637D :

LINES GP-AIR COMPRESSOR
4N-8335 LINES GP-AIR COMPRESSOR
LINES GP-AIR COMPRESSOR
4N-8335 LINES GP-AIR COMPRESSOR
LINES GP-AIR COMPRESSOR
4N-8335 LINES GP-AIR COMPRESSOR
LINES GP-AIR
9D-4585 LINES GP-AIR
LINES GP-AIR
9D-4585 LINES GP-AIR
LINES GP-AIR
9D-4585 LINES GP-AIR
LINES GP-AIR
9D-4585 LINES GP-AIR
LINES GP-AIR
8N-0780 LINES GP-AIR
LINES GP-AIR COMPRESSOR
4N-8335 LINES GP-AIR COMPRESSOR
LINES GP-AIR COMPRESSOR
4N-8335 LINES GP-AIR COMPRESSOR
AIR COMPRESSOR GP
4N-6842 AIR COMPRESSOR GP
AIR COMPRESSOR GP
4N-7378 AIR COMPRESSOR GP
AIR COMPRESSOR GP
4N-7378 AIR COMPRESSOR GP
AIR COMPRESSOR GP
4N-7378 AIR COMPRESSOR GP
AIR CLEANER GP
4N-6849 AIR CLEANER GP
AIR CLEANER GP
4N-6849 AIR CLEANER GP

Truck sale:

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1976 CAT 637D
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1976 CAT 637D

SEATTLE TRACTOR INT'L
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1978 CAT 637D
Call 
1978 CAT 637D

SEATTLE TRACTOR INT'L
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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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