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ELECTRIC STARTING MOTOR (7S4090 N/S)--24 Volt Part of 4N4993, 4N4994, 4N5359, 4N7361, 4N7364, 4N7372, 1P9587, 2P6788, 2P6790, 2P6791, 2P6792, 2P6793, 2P6794, 2P6796, 2P6797, 2P6798, 2P6803 and 3P75 Engine Arrangements. 2P2502 and 3P6 Motor parts are shown on Pages 360 through 363 D6C




ELECTRICAL AND STARTING SYSTEM

STARTING MOTOR GP
 

#UEG0821S0600
 

7S-4090: STARTING MOTOR GP-ELECTRIC

ELECTRIC STARTING MOTOR (7S4090 N/S)--24 Volt
Part of 4N4993, 4N4994, 4N5359, 4N7361, 4N7364, 4N7372, 1P9587, 2P6788,
2P6790, 2P6791, 2P6792, 2P6793, 2P6794, 2P6796, 2P6797, 2P6798, 2P6803
and 3P75 Engine Arrangements. 2P2502 and 3P6 Motor parts are shown
on Pages 360 through 363
c205711 UEG0821S
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Parts for your D6C TRACK-TYPE TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 2P-2502 CY [1] MOTOR GROUP  
    -OR-
  3P-0006 CY [1] MOTOR GROUP  
    (Separate Illustration)
2. 7J-8902 C [3] BOLT  
  8D-5054 [3] WASHER  
3. 4H-7869 [1] GASKET  
4. 9F-4337 [1] WIRE ASSEM.  
5. 9F-3068 [1] TERMINAL  
6. 7F-8032 [1] TERMINAL (Ground)  
7. 9F-5509 [1] INSULATOR  
  C   INDICATES CHANGE
  Y   SEPARATE ILLUSTRATION
 

#UEG0821S0601
 

7S-3622: STARTING MOTOR GP-ELECTRIC

7S3622 ELECTRIC STARTING MOTOR GROUP--24 Volt--Type 1
Part of 4N3571, 4N4439, 4N4463, 4N6521, 2P6789, 2P6795, 2P6799, 2P6800,
2P6801, 2P6802, 2P6804, 2P6805, 2P6806, 2P6807, 2P6808, 2P6810, 2P6812 and
2P9637 Engine Arrangements. 2P6162 and 4N3182 Motor parts are shown on
Pages 366, 367, 370, 371 and 372
c156418 UEG0821S
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Parts for your D6C TRACK-TYPE TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4N-3182 C [1] MOTOR  
    OR
  2P-6162 Y [1] MOTOR  
    (Separate Illustration)
2. 8S-2332 [3] BOLT  
  3B-4510 [3] LOCKWASHER  
  2S-0736 C [3] WASHER  
3. 4H-7869 [1] GASKET  
4. 9F-4337 [1] WIRE ASSEM.  
5. 9F-3068 [1] TERMINAL  
6. 7F-8032 [1] TERMINAL (Ground)  
7. 9F-5509 [2] INSULATOR  
  C   INDICATES CHANGE
  Y   SEPARATE ILLUSTRATION
 

#UEG0821S0602
 

7S-3622: STARTING MOTOR GP-ELECTRIC

7S3622 ELECTRIC STARTING MOTOR GROUP--24 Volt--Type 2
Part of all Engine Arrangements except 4N4993, 4N4994, 4N5359, 4N7361,
4N7364, 4N7372, 4N7374, 4N7376, 1P9587, 2P6788, 2P6790, 2P6791, 2P6792,
2P6793, 2P6794, 2P6796, 2P6797, 2P6798, 2P6803, 2P6809, 2P6811 and 3P75
Engine Arrangements. 4N7752 and 4N3182 Motor parts are shown on Pages
368 through 372
c203067 UEG0821S
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Parts for your D6C TRACK-TYPE TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4N-3182 C [1] MOTOR  
    - OR -
  4N-7752 Y [1] MOTOR  
    (Separate Illustration)
2. 7J-8902 C [3] BOLT  
  8D-5054 C [3] WASHER  
3. 4H-7869 [1] GASKET  
4. 9F-4337 [1] WIRE ASSEM.  
    (Includes)
  5P-0606 T WIRE 2.03 dm(8 in.)  
5. 9F-3068 [1] TERMINAL  
6. 7F-8032 [1] TERMINAL (ground)  
  C   INDICATES CHANGE
  Y   SEPARATE ILLUSTRATION
  T   ORDER BY THE DECIMETRE
 

#UEG0821S0603
 

7S-5410: STARTING MOTOR GP-ELECTRIC

ELECTRIC STARTING MOTOR (7S5410 N/S)--24 Volt
Part of 4N7374, 4N7376, 2P6809 and 2P6811 Engine Arrangements
4N3180 Motor parts are shown on Pages 364 and 365
c205710 UEG0821S
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Parts for your D6C TRACK-TYPE TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 7S-5408 [1] WIRE ASSEM.  
  2L-8071 [1] TERMINAL (1.2 in. Screw)  
  1F-7240 [1] TERMINAL (3.16 in. Screw)  
  7B-4826 [1] INSULATOR  
2. 4M-6853 [1] GASKET  
3. 7J-8902 C [3] BOLT  
  8D-5054 C [3] WASHER  
4. 4N-3180 CY [1] MOTOR ASSEM.  
    (Separate Illustration)
5. 3S-8624 [1] CABLE ASSEM.  
6. 1S-7251 [1] TERMINAL  
7. 1S-7252 [1] TERMINAL (Ground)  
  C   INDICATES CHANGE
  Y   SEPARATE ILLUSTRATION
 

#UEG0821S0604
 

2P-2502: STARTING MOTOR GP-ELECTRIC

2P2502 ELECTRIC STARTING MOTOR GROUP--Delco-Remy--24 Volt--Part 1 of 2
Part of 7S4090 Electric Starting Motor shown on Page 357. 6N5123 Switch parts are shown on Page 372A
Only separate parts serviced. When complete Group is required order 3P7
c155230 UEG0821S
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Parts for your D6C TRACK-TYPE TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 7F-4556 [9] BOLT  
  1L-4789 [9] LOCKWASHER  
2. 4M-0189 [2] SEAL  
3. 2L-8166 [1] WASHER  
4. 3P-0173 [1] FRAME ASSEM.  
5. 9F-2247 [1] PLUG  
  9F-2547 [1] WICK  
6. 3P-0170 [1] BUSHING  
7. 6N-5123 YC [1] SWITCH ASSEM.  
    (Separate Illustration)
8. 6H-3622 [4] SCREW ASSEM.  
9. 4M-1850 [1] HOUSING ASSEM.  
  2B-4602 [1] PLUG  
  9F-2547 [1] WICK  
10. 1M-9968 [1] BUSHING  
11. 2F-6678 [1] SEAL  
12. 5L-9056 [4] BRUSH  
13. 8M-5814 [4] SCREW ASSEM.  
14. 066-5545 [2] HOLDER  
15. 5L-8884 [2] SPRING  
16. 5L-8887 [2] SUPPORT ASSEM.  
    (Includes)
17. 9F-3483 [1] LEAD  
18. 4B-4441 [2] RIVET  
19. 5L-8888 [1] PIN  
20. 3L-3867 [2] SCREW  
  4B-2047 [2] NUT  
  7H-2079 [2] LOCKWASHER  
21. 4M-8472 [2] HOLDER  
22. 1S-0297 [1] HOUSING ASSEM.  
    (Includes)
23. 4M-1896 [1] BUSHING  
24. 2P-4708 [1] DRIVE ASSEM. (800068)  
    (Includes)
25. 9S-9771 [1] PINION  
  9S-9770 [1] SPRING  
    -OR-
26. 6N-3827 CH [1] DRIVE ASSEM. (480118)  
27. 4M-1851 [1] GASKET  
28. 1M-9971 [1] SPACER  
29. 8H-1141 [4] SHOE  
30. 3R-8797 [8] SCREW ASSEM.  
31. 3P-0174 [1] COIL ASSEM.  
32. 1H-2629 [1] STRIP  
33. 4M-1833 [5] SCREW 1.5 in. (3.81 cm) long  
  7M-0336 [1] SCREW .86 in. (2.18 cm) long  
    THE FOLLOWING REPAIR KITS ARE AVAILABLE FOR 2P4708 DRIVE ASSEM.:
  9S-9825 [1] KIT (cup)  
  4S-9459 [1] KIT (washer)  
  C   INDICATES CHANGE
  Y   SEPARATE ILLUSTRATION
  H   NOT PART OF 2P2502 STARTING MO
 

#UEG0821S0605
 

2P-2502: STARTING MOTOR GP-ELECTRIC

2P2502 ELECTRIC STARTING MOTOR GROUP--Delco-Remy--24 Volt--Part 2 of 2
Part of 7S4090 Electric Starting Motor shown on Page 357
Only separate parts serviced. When complete Group is required order 3P7
c207039 UEG0821S
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Parts for your D6C TRACK-TYPE TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 3L-3380 C [1] BUSHING  
2. 3J-4818 [2] LOCKWASHER  
3. 3H-3680 [2] NUT  
4. 0S-1587 C [1] BOLT  
5. 3H-3681 [2] NUT  
6. 9H-3757 [2] WASHER (large)  
  7F-3494 C [2] WASHER (small)  
7. 9F-4976 [1] LOCKWASHER  
8. 4M-1841 [1] CONNECTOR  
9. 5L-8877 [1] ARMATURE ASSEM.  
10. 9M-7606 [1] PLUNGER ASSEM.  
11. 4M-0188 [1] WASHER  
12. 4M-1828 [1] RETAINER  
13. 9M-7609 [1] SPRING  
14. 4M-1829 [1] BOOT  
15. 4M-1827 [1] RETAINER  
16. 9M-7611 [2] RING  
17. 3F-2617 [1] NUT  
18. 4M-1831 [1] PLUG  
  7L-2894 [1] GASKET  
19. 4M-1853 [1] LEVER ASSEM.  
    (Includes)
  4M-1830 [1] GUIDE  
20. 4M-1854 [1] SHAFT  
  1H-1023 [1] SEAL 9.37 mm(.369 in.) diameter  
  2D-6392 [1] SEAL 6.07 mm(.239 in.) diameter  
21. 4L-2729 [1] WASHER  
    THE FOLLOWING REPAIR KIT IS AVAILABLE:
  3N-3763 C [1] TERMINAL KIT (insulator)  
  C   INDICATES CHANGE
 

#UEG0821S0606
 

3P-0006: STARTING MOTOR GP-ELECTRIC

3P6 ELECTRIC STARTING MOTOR GROUP--Prestolite--24 Volt--Part 1 of 2
Part of Electric Starting Motor shown on Page 357
9S7976 Switch parts are shown on Page 373
Only separate parts serviced. When complete Group is required order 3P7
c207040 UEG0821S
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Parts for your D6C TRACK-TYPE TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 1D-5117 [3] NUT  
2. 3B-4508 [6] LOCKWASHER  
3. 085-2771 [1] CONNECTOR  
4. 4N-9404 C [1] LEAD ASSEM.  
5. 4N-4694 [1] KIT (Field Terminal Stud)  
    (Includes Stud, Bushing and Washers)
6. 1D-4719 [3] NUT  
7. 9S-7976 Y [1] SOLENOID ASSEM.  
    (Separate Illustration)
8. 6H-3622 [4] SCREW  
  3B-4504 [4] LOCKWASHER  
  3K-6116 [4] WASHER  
9. 4M-3217 [2] SCREW  
10. 4B-1220 [3] SCREW  
11. 8S-6035 [1] GASKET  
12. 3B-4502 [4] LOCKWASHER  
13. 8S-2769 [1] FIELD ASSEM. (Commutator End)  
14. 2B-4602 [1] PLUG  
15. 8S-4682 [1] KIT (Bearing and Wick)  
16. 4N-4693 KIT (Commutator End Terminal Stud)  
    (Includes Stud, Bushing and Washers)
17. 1D-4717 [1] NUT (plain)  
  1B-2578 [1] NUT (jam)  
  3B-4506 [2] LOCKWASHER  
  C   INDICATES CHANGE
  Y   SEPARATE ILLUSTRATION
 

#UEG0821S0607
 

3P-0006: STARTING MOTOR GP-ELECTRIC

3P6 ELECTRIC STARTING MOTOR GROUP--Prestolite--24 Volt--Part 2 of 2
Part of Electric Starting Motor shown on Page 357
Only separate parts serviced. When complete Group is required order 3P7
c201675 UEG0821S
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Parts for your D6C TRACK-TYPE TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4N-4691 [1] PLATE ASSEM.  
2. 4N-8618 C [1] KIT  
    (Includes 3 Brushes and 1 Clip)
  4N-4692 [1] KIT  
    (Includes 8 Springs)
3. 2P-8825 C [1] SHIFT YOKE ASSEM.  
4. 2P-8817 [1] KIT (Yoke Adjusting)  
    (Includes Plugs, Pin, Gasket and Nut)
5. 8S-1535 [1] KIT  
    (Includes 6 Plugs)
6. 9S-6100 [1] ARMATURE ASSEM.  
  8S-8071 [1] KIT (Armature Thrust Washers)  
7. 8S-4684 [1] KIT (Bearing and Wick)  
8. 8S-1543 [1] HOUSING ASSEM. (Pinion)  
9. 2B-4602 [1] PLUG  
10. 8S-2780 [1] KIT  
    (Includes 10 Insulations)
11. 4N-4517 [1] POSITORK DRIVE ASSEM.  
12. 2H-3931 [1] SEAL  
13. 2P-8824 [1] HOUSING ASSEM.  
  2B-4602 [1] PLUG  
14. 8S-2226 [1] BUSHING  
15. 8S-2225 [1] SEAL  
16. 2P-8816 [1] KIT (Includes Housing Screws)  
17. 3B-4504 [7] LOCKWASHER  
18. 4M-0189 [1] SEAL  
19. 4N-4690 [1] KIT (Field Coil)  
    (Includes Coils, Gaskets and Screws)
  C   INDICATES CHANGE
 

#UEG0821S0608
 

4N-3180: ELECTRIC STARTING MOTOR GROUP

4N3180 ELECTRIC STARTING MOTOR GROUP--Delco-Remy--24 Volt--Part 1 of 2
Part of Electric Starting Motor shown on Page 359
NOTE: DO NOT USE THIS BASIC MOTOR GROUP ON AUTOMATIC START-STOP SYSTEM
c201988 UEG0821S
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Parts for your D6C TRACK-TYPE TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  7M-0332 [1] PLATE  
  4B-1311 [3] SCREW  
  7H-2079 [3] LOCKWASHER  
  7F-3525 [3] WASHER  
  7M-0331 [1] PLATE ASSEM  
  [3] PLATE  
  7F-3524 [3] SCREW  
  7H-2079 [3] LOCKWASHER  
  7F-3525 [3] WASHER  
  4M-1892 [12] SPRING  
    (PARTS OF PLATE ASSEM 7M330)
  4M-1849 [1] LEAD ASSEM  
  7M-0330 [1] PLATE ASSEM  
  8F-9206 [1] SEAL  
  3N-3763 C [1] KIT (TERMINAL)  
    (INCLUDES INSULATOR AND BUSHING)
  1D-4719 [1] NUT  
  3B-4508 [1] LOCKWASHER  
  1D-5117 [1] NUT  
  3B-4508 [1] LOCKWASHER  
  7F-3494 [1] WASHER  
  7F-3491 [2] WASHER  
  4M-1831 [3] PLUG  
  4M-1832 [3] GASKET  
  7F-4556 [6] BOLT  
  1L-4789 [6] LOCKWASHER  
  9F-9298 [12] SCREW  
  2L-6679 [3] PLATE  
  5H-6467 [3] SCREW  
  7H-2079 [3] LOCKWASHER  
  7F-3525 [3] WASHER  
  7F-3513 [6] HOLDER  
  7F-3522 [3] SCREW  
  7H-2079 [3] LOCKWASHER  
  7F-3525 [3] WASHER  
  7F-3520 [1] PLATE  
  7F-3521 [3] PLATE  
    (PARTS OF PLATE ASSEM 7M330)
  7F-4556 [7] BOLT  
  1L-4789 [7] LOCKWASHER  
  4M-1831 [1] PLUG  
  4M-1832 [1] GASKET  
  4M-1896 [1] BUSHING  
    (PART OF HOUSING ASSEM. 1S297)
  1S-0297 [1] HOUSING ASSEM  
  C   INDICATES CHANGE
 

#UEG0821S0609
 

4N-3180: ELECTRIC STARTING MOTOR GROUP

4N3180 ELECTRIC STARTING MOTOR GROUP--Delco-Remy--24 Volt--Part 2 of 2
Part of Electric Starting Motor shown on Page 359. 6N5123 Switch parts are shown on Page 372A
c155229 UEG0821S
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Parts for your D6C TRACK-TYPE TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  7M-0326 [1] CONNECTOR  
  1D-5117 [2] NUT  
  3B-4508 [1] LOCKWASHER  
  7F-3494 [1] WASHER (.031" THICK)  
  9H-3757 [2] WASHER (.093" THICK)  
  3L-3380 [1] BUSHING  
  2J-8163 [2] SEAL  
  6N-3279 [1] INSULATOR  
    THE FOLLOWING REPAIR KITS ARE AVAILABLE FOR 2P4708 DRIVE ASSEM.:
  9S-9825 [1] KIT (cup)  
  4S-9459 [1] KIT (washer)  
  2B-4602 [1] PLUG  
  4M-1890 [1] WICK  
  1H-9721 [1] PLUG  
  7F-3506 [1] BUSHING  
    (PARTS OF FRAME ASSEM 7M328)
  7M-0327 [1] WASHER  
  7M-0328 [1] FRAME ASSEM  
  4B-1221 [3] SCREW  
  8H-0878 [3] LOCKWASHER  
  7F-3529 [3] WASHER  
  2F-2860 [12] SCREW  
  3B-4501 [12] LOCKWASHER  
  7M-0329 [12] BRUSH ASSEM  
  7M-0325 [1] INSULATOR  
  7M-8651 [1] ARMATURE ASSEM  
  7M-0324 [1] COIL ASSEM  
  4M-1855 [1] PLUNGER ASSEM  
  4M-1828 [1] RETAINER  
  2S-4027 [1] WASHER  
  4M-1829 [1] BOOT  
  6H-3622 [4] SCREW ASSEM  
  6N-5123 Y [1] SWITCH ASSEM  
    (SEPARATE ILLUSTRATION)
  7F-3488 [6] SHOE  
  1H-2629 [3] STRIP  
  1M-9971 [1] SPACER  
  2F-6678 [1] SEAL  
  1M-9968 [1] BUSHING  
    (PARTS OF HOUSING ASSEM 7M333)
  9M-7609 [1] SPRING  
  7M-0333 [1] HOUSING ASSEM  
  4M-1827 [1] RETAINER  
  2H-3429 [1] RING  
  3F-2617 [1] NUT  
  4M-1853 [1] LEVER ASSEM.  
  4M-1854 [1] SHAFT  
  1H-1023 [1] SEAL (369" DIA)  
  2D-6392 [1] SEAL (239" DIA)  
  2H-3429 [1] RING  
  2P-4708 [1] DRIVE ASSEM.  
    (800068)
    -OR-
  6N-3827 H [1] DRIVE ASSEM.  
    (480118)
  9S-9771 [1] PINION  
  9S-9770 [1] SPRING  
    (Parts of 2P4708 Assem.)
  4M-1851 [1] GASKET  
  4M-1833 [5] SCREW  
  7M-0336 [1] SCREW (SOCKET HEAD)  
  4L-2729 [1] WASHER  
  2B-4602 [1] PLUG (PIPE)  
  4M-1890 [1] WICK  
    (PARTS OF HOUSING ASSEM 7M333)
  H   NOT PART OF 4N3180 STARTING MO
  Y   SEPARATE ILLUSTRATION
 

Information:

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Caterpillar PRELUB<SUP>&reg;</SUP> Diagnostics{1469}
Caterpillar PRELUB® Diagnostics{1469}
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