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8S3886 STARTING MOTOR GROUP--24 Volt Part of 8S3881 Starting Arrangement 8S3961 Motor parts are shown on Pages 149A, 149B and 149D 966C


ELECTRICAL AND STARTING SYSTEM
STARTING MOTOR GP
FRAME AND BODY
GUARD GP
ELECTRICAL AND STARTING SYSTEM
ALTERNATOR GP-CHARGING
STEERING SYSTEM
STEERING GP


ELECTRICAL AND STARTING SYSTEM

STARTING MOTOR GP
 

#UEH0009S0550
 

8S-3886: STARTING MOTOR GP-ELECTRIC

8S3886 STARTING MOTOR GROUP--24 Volt
Part of 8S3881 Starting Arrangement
8S3961 Motor parts are shown on Pages 149A, 149B and 149D
c113563 UEH0009S
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Parts for your 966C WHEEL LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 8S-3961 Y [1] MOTOR ASSEM.  
    (See Separate Illustration)
2. 0S-1589 [2] BOLT  
3. 3B-4510 [3] LOCKWASHER  
4. 4H-7869 [1] GASKET  
5. 9F-4337 [1] WIRE ASSEM.  
6. 7F-8032 [1] TERMINAL (Ground)  
7. 9F-5509 [2] INSULATOR  
8. 9F-3068 [1] TERMINAL  
9. 8S-2332 [1] BOLT (12 Point)  
  Y   SEPARATE ILLUSTRATION
 

#UEH0009S0551
 

8S-3961: MOTOR ASSEMBLY

8S3961 MOTOR ASSEMBLY--24 Volt--Part 1 of 3
Part of 8S3886 Starting Motor Group shown on Page 149
4M1812 Switch parts are shown on Page 46A
c113561 UEH0009S
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Parts for your 966C WHEEL LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 7F-4556 [6] BOLT  
2. 1L-4789 [6] LOCKWASHER  
3. 7M-0328 [1] FRAME ASSEM.  
4. 7S-9826 [1] PLUG  
5. 7F-3506 [1] BUSHING  
6. 9F-2247 [1] PLUG  
7. 9F-2547 [1] WICK  
8. 7S-9825 [1] GASKET  
9. 7M-8651 [1] ARMATURE ASSEM.  
10. 3L-3380 [1] BUSHING  
11. 7M-0324 [1] COIL ASSEM.  
12. 9H-3757 [2] WASHER  
13. 7F-3494 [1] WASHER  
14. 7M-0326 [1] CONNECTOR  
15. 1D-5117 [2] NUT  
16. 4M-1812 Y [1] SWITCH ASSEM.  
    (See Separate Illustration)
17. 6H-3622 [4] SCREW ASSEM.  
18. 3B-4508 [1] LOCKWASHER  
19. 9F-9298 [12] SCREW  
20. 7M-0325 [1] INSULATOR  
21. 4M-1831 [3] PLUG  
22. 4M-1832 [3] GASKET  
23. 1H-2629 [3] STRIP  
24. 7F-3488 [6] SHOE  
25. 7M-0327 [1] WASHER  
  Y   SEPARATE ILLUSTRATION
 

#UEH0009S0552
 

8S-3961: MOTOR ASSEMBLY

8S3961 MOTOR ASSEMBLY--24 Volt--Part 2 of 3
Part of 8S3886 Starting Motor Group shown on Page 149
c113562 UEH0009S
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Parts for your 966C WHEEL LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. [1] LEAD ASSEM.  
2. [1] SEAL  
3. [3] WASHER  
4. [3] LOCKWASHER  
5. [3] SCREW  
6. [1] PLATE ASSEM.  
7. [12] WASHER  
8. [1] PLATE  
9. [3] SCREW  
10. [12] LOCKWASHER  
11. [3] PLATE  
12. [6] HOLDER  
13. [3] SCREW  
14. [12] SPRING  
15. [1] PLATE ASSEM.  
16. [3] PLATE  
17. [3] SCREW  
18. [1] PLATE  
19. [3] SCREW  
20. [13] SCREW (.312" Long)  
  [12] LOCKWASHER  
21. [12] BRUSH ASSEM.  
22. [2] WASHER  
23. [1] SEAL  
24. [1] BUSHING  
25. [1] INSULATOR  
26. [1] WASHER  
27. [2] LOCKWASHER  
28. [1] NUT  
29. [1] NUT  
 

#UEH0009S0553
 

8S-3961: MOTOR ASSEMBLY

8S3961 MOTOR ASSEMBLY--24 Volt--Part 3 of 3
Part of 8S3886 Starting Motor Group shown on Page 149
c145882 UEH0009S
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Parts for your 966C WHEEL LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4M-1855 [1] PLUNGER ASSEM.  
2. 2S-4027 [1] WASHER  
3. 4M-1829 [1] BOOT  
4. 4M-1828 [1] RETAINER  
5. 9M-7609 [1] SPRING  
6. 4M-1827 [1] RETAINER  
7. 1H-1023 [1] SEAL  
8. 7M-0333 [1] HOUSING ASSEM.  
9. 9F-2547 [1] WICK  
10. 9F-2247 [1] PLUG  
11. 1M-9968 [1] BUSHING  
12. 2F-6678 [1] SEAL  
13. 7S-9826 [1] PLUG  
14. 7S-9825 [1] GASKET  
15. 2H-3429 [2] RING  
16. 4L-2729 [1] WASHER  
17. 4M-1853 [1] LEVER ASSEM.  
18. 3F-2617 [1] NUT  
19. 4M-1832 [1] GASKET  
20. 4M-1831 [1] PLUG  
21. 1S-0297 [1] HOUSING ASSEM.  
22. 4M-1896 C [1] BUSHING  
23. 4M-1833 [5] SCREW (1.50" Long)  
  7M-0336 [1] SCREW (.875" Long)  
24. 9M-3158 [1] CLUTCH ASSEM.  
25. 2S-0366 [1] PINION  
26. 1M-9953 [1] SPRING  
27. 4M-1851 [1] GASKET  
28. 4M-1854 [1] SHAFT  
29. 2D-6392 [1] SEAL  
30. 7F-4556 [7] BOLT  
31. 1L-4789 [7] LOCKWASHER  
32. 2J-8163 [1] SEAL  
33. 1M-9971 [1] SPACER  
    THE FOLLOWING REPAIR KIT IS AVAILABLE:
34. 1S-8931 [1] KIT (Cup)  
    (Includes 2 Straight & 2 Flanged Cups)
  C   INDICATES CHANGE
 

#UEH0009S0554
 

6K-9156: GUARD GP-TRACTOR

6K9156 TRACTOR GUARD GROUP
c175763 UEH0009S
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Parts for your 966C WHEEL LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 1A-0458 [12] BOLT  
  3B-4512 [12] LOCKWASHER  
  4B-4283 [12] WASHER  
2. 5K-1014 [1] PLATE  
3. 5K-1019 [1] PLATE ASSEM. (R.H.)  
  5K-1020 [1] PLATE ASSEM. (L.H.)  
4. 5K-1021 [1] BAR  
5. 5K-1011 [4] BLOCK  
6. 4D-7678 C [1] COVER  
7. 0S-1595 C [4] BOLT  
  5P-8245 C [4] WASHER  
  C   INDICATES CHANGE
 

#UEH0009S0555
 

7S-9778: GENERATOR GROUP

7S9778 GENERATOR GROUP--24 Volt, 20 Ampere
Also part of 8S3881 Direct Electric Starting Arrangement
listed on Page 149
c101974 UEH0009S
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Parts for your 966C WHEEL LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  3B-1915 [1] BOLT  
  3B-4506 [1] LOCKWASHER  
  7S-9775 [1] STRAP  
  7S-9776 [1] PULLEY  
  8S-3887 [1] BOLT  
    THE FOLLOWING REPAIR KIT IS AVAILABLE:
  8M-3146 [1] KIT (Shockmount)  
    (Includes such parts as Bracket Assemblies, Lead Assembly and Hardware)
  4M-9349 [1] REGULATOR ASSEM.  
  7S-9779 [1] SPACER  
  4M-9102 Y [1] GENERATOR ASSEM.  
    (See Separate Illustration)
  Y   SEPARATE ILLUSTRATION
 

#UEH0009S0556
 

4M-9102: GENERATOR ASSEMBLY

4M9102 GENERATOR ASSEMBLY
Part of 7S9778 Generator Group shown on page 150.
c93721 UEH0009S
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Parts for your 966C WHEEL LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  2F-2860 [8] SCREW  
  3B-4501 [8] LOCKWASHER  
  7F-7615 [4] SCREW  
  7F-7622 [4] NUT  
  5M-3250 [2] BRUSH ASSEM.  
  4B-1311 [2] SCREW  
  3B-4502 [2] LOCKWASHER  
  5M-3252 [1] HOLDER ASSEM.  
    (GROUNDED)
  5M-3251 [1] HOLDER ASSEM  
    (INSULATED)
  2L-6840 [1] RING  
  5M-3114 [1] BEARING  
  7F-7611 [4] SCREW  
  3B-4502 [4] LOCKWASHER  
  5M-3106 [1] PLATE ASSEM  
  5M-3107 [1] GASKET  
  5H-2532 [1] KEY  
  8F-2707 [1] NUT  
  7F-9819 [1] LOCK  
  7F-9818 [1] COLLAR  
  5M-1856 [1] FAN  
  5M-3178 [1] SEAL  
    (PART OF PLATE ASSEM. 5M3106)
  5M-3249 [1] SPACER  
  8M-6702 [3] SCREW  
  3B-4504 [3] LOCKWASHER  
  8M-6701 [3] WASHER  
  7F-7623 [2] BOLT  
  3B-4505 [2] LOCKWASHER  
  8M-6608 [1] COVER ASSEM  
  8M-6700 [1] FRAME ASSEM  
  7F-7673 [2] STUD  
    (1 IN EACH COIL ASSEM 5M8413 AND 5M8414)
  1B-4330 [4] NUT  
  3B-4504 [4] LOCKWASHER  
  7F-4920 [2] WASHER (STEEL)  
  7F-7600 [2] WASHER (INSUL)  
  7F-7599 [2] BUSHING  
  9B-9178 [1] SCREW  
  3B-4504 [1] LOCKWASHER  
  9B-9178 [2] SCREW  
  8H-3481 [2] LOCKWASHER  
  3F-3463 [4] SCREW  
  5M-3239 [2] PLATE  
  5M-3241 [2] GASKET  
  5M-8416 [2] SPRING ASSEM  
  5M-3247 [1] PLATE ASSEM.  
  4B-1306 [4] SCREW  
  7F-7596 [2] SHOE  
  3S-3273 [1] COIL ASSEM.  
  5M-8415 [1] ARMATURE ASSEM.  
  5M-3118 [1] PLATE  
  5M-4389 [1] WASHER  
  6H-9144 [1] RING  
    (PART OF ARMATURE ASSEM. 5M8415)
  1L-6312 [4] SCREW  
  7H-2079 [4] LOCKWASHER  
  1B-8707 [1] KEY  
  7H-0387 [1] NUT  
  7F-7621 [1] WASHER  
  5M-3254 [1] COLLAR  
  5M-3179 [1] SEAL  
    (PART OF PLATE ASSEM 5M3116)
  5M-3116 [1] PLATE ASSEM  
  5M-3117 [1] GASKET  
  9B-9134 [2] PIN  
    (PART OF PLATE ASSEM 5M3116)
  5M-3113 [1] BEARING  
  5M-3253 [1] FRAME ASSEM  
  9B-9134 [2] PIN  
 

#UEH0009S0557
 

7K-8588: SUPPLEMENTAL STEERING GROUP

7K8588 SUPPLEMENTAL STEERING GROUP--Type 1
Serial No. 42J2340 to 42J2503 inclusive
7J8199 Pump and 7J9977 Valve parts are shown on Pages 151C and 151E
c163301 UEH0009S
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Parts for your 966C WHEEL LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  8K-5752 [1] HOSE ASSEM.  
    (Includes)
1. 7S-0575 [1] STEM ASSEM. (90 degrees)  
2. 3S-7252 [2] SLEEVE  
3. 5P-0181 CH HOSE 38.1 cm(15 in.)  
4. 3S-8496 [1] STEM ASSEM. (Straight)  
5. 4J-0522 C [10] SEAL  
6. 4J-0520 [3] SEAL  
7. 8K-5937 [1] BRACKET ASSEM.  
8. 1B-2355 [1] BUSHING  
9. 0S-1625 [1] BOLT  
  3B-4510 [1] LOCKWASHER  
10. 1A-2029 [6] BOLT  
11. 3B-4506 [46] LOCKWASHER  
12. 4B-4278 [14] WASHER  
13. 8K-5798 [1] TUBE ASSEM.  
14. 0S-1571 [20] BOLT  
15. 8K-6189 [1] TUBE ASSEM.  
  8K-5751 [1] HOSE ASSEM.  
    (Includes)
16. 5P-0181 CH HOSE 51.82 cm(20.4 in.)  
17. 3S-7252 [2] SLEEVE  
18. 3S-8503 [2] STEM ASSEM. (90 degrees)  
19. 9M-2904 [4] CLAMP  
20. 4K-8380 [2] HOSE  
21. 7J-8199 Y [1] PUMP GROUP  
    (See Separate Illustration)
  7J-8114 [1] GASKET  
22. 0S-1590 [4] BOLT  
23. 3D-0490 [2] STUD  
  1D-4719 [2] NUT  
  3B-4508 [2] LOCKWASHER  
  4B-4280 [2] WASHER  
24. 8K-5802 [1] TUBE ASSEM.  
25. 8K-5800 [1] TUBE ASSEM.  
26. 1P-4125 [1] COUPLING  
  2K-8467 [1] PIN  
27. 0S-1594 [4] BOLT  
28. 1H-3305 [4] FLANGE  
29. 0S-1588 [8] BOLT  
30. 8K-5804 [1] TUBE ASSEM.  
31. 8L-4667 [1] ADAPTER  
  2S-4078 [1] SEAL  
32. 0S-1591 [4] BOLT  
33. 7J-9977 Y [1] DIVERTER VALVE GROUP  
    (See Separate Illustration)
34. 8K-6046 [1] TUBE ASSEM. (L.H.)  
35. 8K-5934 [1] BRACKET ASSEM.  
36. 9F-2978 [2] NUT  
37. 8K-5933 [1] BRACKET ASSEM.  
38. 9F-2978 [2] NUT  
39. 8K-5939 [1] BRACKET ASSEM.  
40. 9F-2978 [2] NUT  
41. 8K-6045 [1] TUBE ASSEM. (R.H.)  
  H   ORDER BY THE CENTIMETRE
  Y   SEPARATE ILLUSTRATION
  C   INDICATES CHANGE
 

#UEH0009S0558
 

7K-8588: SUPPLEMENTAL STEERING GROUP

7K8588 SUPPLEMENTAL STEERING GROUP--Type 2
Serial No. 42J2340 to 42J2503 inclusive
7J8199 Pump and 7J9977 Valve parts are shown on Pages 151C and 151E
c163303 UEH0009S
  For full view, you need register

Parts for your 966C WHEEL LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 8K-5752 [1] HOSE ASSEM.  
    (Includes)
  7S-0575 [1] STEM ASSEM. (90 degrees)  
2. 3S-7252 [2] SLEEVE  
3. 5P-0181 H HOSE 38.1 cm(15 in.)  
4. 3S-8496 [1] STEM ASSEM. (Straight)  
5. 4J-0522 C [10] SEAL  
6. 4J-0520 [3] SEAL  
7. 8K-5937 [1] BRACKET ASSEM.  
8. 1B-2355 [1] BUSHING  
9. 0S-1625 [1] BOLT  
  3B-4510 [1] LOCKWASHER  
10. 1A-2029 [6] BOLT  
11. 3B-4506 C [38] LOCKWASHER  
12. 4B-4278 C [20] WASHER  
13. 8K-5798 [1] TUBE ASSEM.  
14. 0S-1571 [22] BOLT  
15. 8K-6189 [1] TUBE ASSEM.  
16. 8K-5751 [1] HOSE ASSEM.  
  5P-0181 H HOSE 51.82 cm(20.4 in.)  
17. 3S-7252 [2] SLEEVE  
18. 3S-8503 [2] STEM ASSEM. (90 degrees)  
19. 9M-2904 [4] CLAMP  
20. 4K-8380 [2] HOSE  
21. 7J-8199 Y [1] PUMP GROUP  
    (Separate Illustration)
  7J-8114 [1] GASKET  
22. 0S-1590 C [2] BOLT  
23. 3D-0490 [2] STUD  
  1D-4719 [2] NUT  
  3B-4508 [2] LOCKWASHER  
  4B-4280 [2] WASHER  
24. 8K-5802 [1] TUBE ASSEM.  
25. 8K-5800 [1] TUBE ASSEM.  
26. 1P-4125 [1] COUPLING  
  2K-8467 [1] PIN  
27. 0S-1594 [4] BOLT  
28. 1P-4577 C [4] FLANGE  
29. 0S-1588 [8] BOLT  
30. 8K-5804 [1] TUBE ASSEM.  
31. 2P-9920 C [1] CONNECTOR  
  2S-4078 [1] SEAL  
32. 0S-1591 [4] BOLT  
33. 7J-9977 Y [1] DIVERTER VALVE GROUP  
    (Separate Illustration)
34. 8K-6046 [1] TUBE ASSEM. (L.H.)  
35. 8K-5934 [1] BRACKET ASSEM.  
36. 8K-5933 [1] BRACKET ASSEM.  
37. 8K-5939 [1] BRACKET ASSEM.  
    (Each Includes)
38. 9F-2978 [2] NUT  
39. 8K-6045 [1] TUBE ASSEM. (R.H.)  
  H   ORDER BY THE CENTIMETRE
  Y   SEPARATE ILLUSTRATION
  C   INDICATES CHANGE
 

#UEH0009S0559
 

7K-8588: SUPPLEMENTAL STEERING GROUP

7K8588 SUPPLEMENTAL STEERING GROUP--Type 3
Serial No. 42J2340 to 42J2503 inclusive
7J8199 Pump and 7J9977 Valve parts are shown on Pages 151C and 151E
c219508 UEH0009S
  For full view, you need register

Parts for your 966C WHEEL LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 8K-5752 [1] HOSE ASSEM.  
  7S-0575 [1] STEM ASSEM. (90 degrees)  
2. 3S-7252 [2] SLEEVE  
3. 5P-0181 H HOSE 38.1 cm(15 in.)  
4. 3S-8496 [1] STEM ASSEM. (straight)  
5. 4J-0522 C [4] SEAL  
6. 4J-0520 [3] SEAL  
7. 8K-5937 [1] BRACKET ASSEM.  
8. 1B-2355 [1] BUSHING  
9. 0S-1625 [1] BOLT  
  3B-4510 [1] LOCKWASHER  
10. 1A-2029 [6] BOLT  
11. 3B-4506 C [14] LOCKWASHER  
12. 4B-4278 C [10] WASHER  
13. 4V-2767 C [1] TUBE ASSEM.  
14. 2A-4639 C [14] BOLT  
15. 4V-2782 C [1] TUBE ASSEM.  
16. 8K-5751 [1] HOSE ASSEM.  
  5P-0181 H HOSE 51.82 cm(20.4 in.)  
17. 3S-7252 [2] SLEEVE  
18. 3S-8503 [2] STEM ASSEM. (90 degrees)  
19. 5P-2230 C [4] CLAMP  
20. 4K-8380 [2] HOSE  
21. 7J-8199 Y [1] PUMP GROUP  
    (Separate Illustration)
  7J-8114 [1] GASKET  
22. 1C-2251 C [2] BOLT  
23. 3D-0490 [2] STUD  
  1D-4719 [2] NUT  
  3B-4508 [2] LOCKWASHER  
  4B-4280 [2] WASHER  
24. 4V-2812 C [1] TUBE ASSEM.  
25. 4V-2819 C [1] TUBE ASSEM.  
26. 1P-4125 [1] COUPLING  
  2K-8467 [1] PIN  
27. 0S-1594 [4] BOLT  
28. 1P-4577 [4] FLANGE  
29. 3B-1915 C [8] BOLT  
30. 8K-5804 [1] TUBE ASSEM.  
31. 2P-9920 [1] CONNECTOR  
  2S-4078 [1] SEAL  
32. 0S-1591 [4] BOLT  
33. 7J-9977 Y [1] DIVERTER VALVE GROUP  
    (Separate Illustration)
34. 4V-2813 C [1] TUBE ASSEM. (L.H.)  
35. 8K-5934 [1] BRACKET ASSEM.  
36. 9F-2978 [2] NUT  
37. 8K-5933 [1] BRACKET ASSEM.  
38. 9F-2978 [2] NUT  
39. 8K-5939 [1] BRACKET ASSEM.  
40. 9F-2978 [2] NUT  
41. 4V-2815 [1] TUBE ASSEM. (R.H.)  
42. 5M-2894 C [10] WASHER  
43. 1P-3704 C [6] SEAL  
44. 0S-1590 C [8] BOLT  
  H   ORDER BY THE CENTIMETRE
  Y   SEPARATE ILLUSTRATION
  C   INDICATES CHANGE
 

Information:

Engine News
Special Instruction
Current Draw Of Electric Starting Motors{1453}
Current Draw Of Electric Starting Motors{1453}
Installation of Electric Starting Motors{1453}
Installation of Electric Starting Motors{1453}
Caterpillar PRELUB<SUP>&reg;</SUP> Diagnostics{1469}
Caterpillar PRELUB® Diagnostics{1469}
Starting Motor Solenoid - Replace {1467}
Starting Motor Solenoid - Replace {1467}
Installation of New Shift Lever Assembly for All Starter Motors {1453}
Installation of New Shift Lever Assembly for All Starter Motors {1453}
Procedure to Install the Insulator on to Series Starters on All Engines {1453}
Procedure to Install the Insulator on to Series Starters on All Engines {1453}
Installation of Repair Kit-Solenoid Plunger Assembly on All Engines {1453}
Installation of Repair Kit-Solenoid Plunger Assembly on All Engines {1453}
Procedure to Install Terminal Kit on All Engines {1453}
Procedure to Install Terminal Kit on All Engines {1453}
Procedure to Install Brush Holder Assembly in All Engines {1453}
Procedure to Install Brush Holder Assembly in All Engines {1453}
Procedure to Replace Armature of Starter Motor On All Cat<SUP>&reg;</SUP> Products {1408, 1450, 1453}
Procedure to Replace Armature of Starter Motor On All Cat® Products {1408, 1450, 1453}
Procedure to Replace Commutator End (CE) Housing of Starter Motor On All Cat<SUP>&reg;</SUP> Products {1408, 1450, 1453}
Procedure to Replace Commutator End (CE) Housing of Starter Motor On All Cat® Products {1408, 1450, 1453}
Procedure to Replace Drive Assembly of Starter Motor On All Cat<SUP>&reg;</SUP> Products {1453}
Procedure to Replace Drive Assembly of Starter Motor On All Cat® Products {1453}
Disassembly and Assembly
Electric Starting Motor
3306 VEHICULAR ENGINE FOR 966C WHEEL LOADER
Service Magazine

Caterpillar Parts SIS Catalog 966C :

Truck sale:

 
Caterpillar 966C
- Wheel Loaders
PETERSON TRACTOR CO
30,547 
Caterpillar 966C, Wheel Loaders, Construction
- Wheel Loaders
FINNING CANADA
28.000 
Caterpillar 966C, Wielladers, Bouw
- Wheel loaders
MICHIGAN CAT
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