CHARGING ALTERNATOR (3Y4141 N/S) Effective with Serial No. 32F1522-UP 5A8908 Alternator Assembly parts are shown on Page 138 951B





ELECTRICAL AND STARTING SYSTEM

ALTERNATOR GP-CHARGING
 

#XMBP95560180
 

3Y-4141: CHARGING ALTERNATOR

CHARGING ALTERNATOR (3Y4141 N/S)
Effective with Serial No. 32F1522-UP
5A8908 Alternator Assembly parts are shown on
Page 138
j13012e XMBP9556
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Parts for your 951B TRACK LOADER:

Pos. Part No Qty Parts name Comments
1. 5A-8909 [1] WIRE ASSEM.  
2. 5A-3646 [1] TERMINAL  
3. 2L-8076 [1] TERMINAL  
4. 9S-4029 [1] WIRE ASSEM.  
5. 2L-8076 [2] TERMINAL  
6. 2N-7744 [1] SWITCH (Pressure)  
7. 3B-8822 [1] ELBOW  
8. 9S-4146 [1] WIRE ASSEM.  
  2L-8069 [1] TERMINAL  
  2L-8066 [1] TERMINAL  
9. 8S-4183 [1] STRAP  
10. 0S-1585 [2] BOLT  
11. 2S-6735 [1] SPACER  
12. 8M-4791 [3] WASHER  
13. 9S-6129 [1] PULLEY  
14. 5A-8908 Y [1] ALTERNATOR ASSEM.  
    (See Separate Illustration)
15. 9S-1240 [1] NUT ASSEM.  
16. 7S-6723 [1] BRACKET  
17. 0S-1571 [1] BOLT (44.5mm Long)  
18. 0S-1619 [1] BOLT (76mm Long)  
19. 1D-4574 [1] BOLT (152mm Long)  
  Y   SEPARATE ILLUSTRATION
 

#XMBP95560181
 

3Y-1329: ALTERNATOR AND WIRING GROUP

3Y1329 ALTERNATOR AND WIRING GROUP--24 Volt, 35 Ampere
Only Separate Parts Serviced
AN ATTACHMENT
XMBP95560181 XMBP9556
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Parts for your 951B TRACK LOADER:

Pos. Part No Qty Parts name Comments
  3Y-0546 Y [1] ALTERNATOR ASSEM.  
    (See Separate Illustration)
  3Y-1012 [1] PULLEY  
  3Y-0646 [1] REGULATOR ASSEM.  
  4B-4276 [4] WASHER  
  Y   SEPARATE ILLUSTRATION
 

#XMBP95560182
 

3Y-5819: ALTERNATOR ARRANGEMENT

3Y5819 ALTERNATOR ARRANGEMENT--24 Volt, 50 Ampere
Only Separate Parts Serviced
AN ATTACHMENT
XMBP95560182 XMBP9556
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Parts for your 951B TRACK LOADER:

Pos. Part No Qty Parts name Comments
  5S-9088 RY [1] ALTERNATOR GROUP  
  9S-6129 [1] PULLEY  
  9S-0173 [1] BREAKER  
  2L-8054 [1] TERMINAL  
  1H-6936 [1] WIRE ASSEM.  
  2L-8060 [1] TERMINAL  
  2L-8058 [1] TERMINAL  
  2P-1773 [1] WIRE ASSEM.  
  2L-8076 [1] TERMINAL  
  2L-8081 [1] TERMINAL  
  R   REMFG PART MAY BE AVAILABLE
  Y   SEPARATE ILLUSTRATION
 

#XMBP95560183
 

5A-8908: ALTERNATOR ASSEMBLY

5A8908 ALTERNATOR ASSEMBLY--Part 1 of 2
Effective with Serial No. 32F1197-UP
Part of Charging Alternator
j15851e XMBP9556
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Parts for your 951B TRACK LOADER:

Pos. Part No Qty Parts name Comments
1. 5A-9356 [2] MACHINE SCREW  
2. 5A-4630 [6] LOCKWASHER  
3. 5A-9357 [1] BRUSH STUD ASSEM.  
  5A-9365 [1] BOLT  
4. 5A-6540 [2] NUT  
  [2] LOCKWASHER  
5. 5A-9352 [1] GASKET  
6. 5A-9338 [1] ROTOR ASSEM.  
7. 5A-9339 [1] BEARING  
8. 5A-9342 [2] SEAL (Lip Type)  
9. 5A-9345 [1] STATOR ASSEM.  
10. 5A-9346 [2] GASKET  
11. 5A-6503 [4] MACHINE SCREW  
12. 5A-9347 [1] FAN ASSEM.  
13. 5A-9349 [1] BEARING  
14. 5A-9350 [1] SEAL (Lip Type)  
15. 3Y-1222 [1] NUT  
  3Y-1223 [1] WASHER  
  5A-9351 [1] LOCKWASHER  
16. 3Y-1455 [1] SPACER  
17. 3Y-1454 [2] SPACER  
18. [1] NUT  
  5A-9340 [1] LOCKWASHER  
  3Y-1221 [1] WASHER  
19. 5A-9341 [1] KEY  
20. 3Y-6479 [1] RETAINER  
21. 3Y-6478 [4] SCREW  
  5A-4629 [4] LOCKWASHER  
 

#XMBP95560184
 

5A-8908: ALTERNATOR ASSEMBLY

5A8908 ALTERNATOR ASSEMBLY--Part 2 of 2
Effective with Serial No. 32F1197-UP
Part of Charging Alternator
j13107e XMBP9556
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Parts for your 951B TRACK LOADER:

Pos. Part No Qty Parts name Comments
1. 5A-9348 [1] COVER  
2. 5A-9343 [1] FRONT BRACKET ASSEM.  
3. 5A-9354 [4] MACHINE SCREW  
  5A-4629 [4] LOCKWASHER  
  5A-9355 [4] WASHER  
4. 5A-9344 [1] BAFFLE  
5. 3Y-3112 [1] REAR BRACKET ASSEM.  
6. 5A-9363 [1] TERMINAL ASSEM.  
  5A-9365 [1] BOLT  
7. 5A-9364 [1] LEAD ASSEM.  
8. 5A-9368 [1] BUSH (Rubber)  
9. 5A-6540 [2] NUT  
10. 5A-4630 [2] LOCKWASHER  
  5A-9361 [2] WASHER  
11. 5A-9369 [1] WASHER  
12. 5A-3447 [1] WASHER  
13. 5A-9367 [1] INSULATOR (Bush)  
14. 5A-9366 [1] INSULATOR  
15. 5A-9362 [1] TERMINAL ASSEM.  
  5A-9365 [1] BOLT  
16. 5A-9361 [1] WASHER  
17. 5A-4630 [2] LOCKWASHER  
18. 5A-6540 [2] NUT  
19. 5A-9373 [1] WASHER  
20. 5A-9368 [1] BUSH (Rubber)  
21. 3Y-4701 [3] DIODE (-)  
22. 5A-9359 [1] INSULATOR  
23. 5A-9358 [1] HEAT SINK ASSEM.  
24. 3Y-4700 [3] DIODE (+)  
25. 5A-9360 [3] INSULATOR  
26. 5A-9361 [3] WASHER  
  5A-9356 [3] MACHINE SCREW  
  5A-4630 [3] LOCKWASHER  
 

#XMBP95560185
 

3Y-0546: ALTERNATOR ASSEMBLY

3Y546 ALTERNATOR ASSEMBLY
Part of 3Y1329 Alternator and Wiring Group
3Y1261 Rear Bracket Assembly parts are shown on Page 141
AN ATTACHMENT
j7061e XMBP9556
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Parts for your 951B TRACK LOADER:

Pos. Part No Qty Parts name Comments
1. 3Y-1260 [1] COVER  
2. 3Y-1258 [1] BEARING  
3. 3Y-1257 [1] RETAINER  
4. 3Y-1259 [1] FAN  
5. 3Y-1256 [2] BRUSH ASSEM.  
6. 3Y-1255 [1] ROTOR ASSEM.  
7. 3Y-1254 [1] STATOR ASSEM.  
8. 3Y-1253 [1] GASKET  
9. 3Y-1252 [1] RETAINER  
10. 3Y-1249 [4] BOLT  
11. 3Y-1250 [4] LOCKWASHER  
12. 3Y-1251 [4] WASHER  
13. 3Y-1248 [1] BEARING  
14. 3Y-1247 [1] KEY  
15. 3Y-1245 [1] NUT  
16. 3Y-1246 [1] LOCKWASHER  
17. 3Y-1244 [1] FRONT BRACKET ASSEM.  
18. 3Y-1242 [3] BOLT  
19. 3Y-1243 [3] LOCKWASHER  
20. 3Y-1261 Y [1] REAR BRACKET ASSEM.  
    (See Separate Illustration)
21. 3Y-1277 [1] COVER  
22. 3Y-1276 [1] GASKET  
  Y   SEPARATE ILLUSTRATION
 

#XMBP95560186
 

3Y-1261: REAR BRACKET ASSEMBLY

3Y1261 REAR BRACKET ASSEMBLY
Part of 3Y546 Alternator Assembly
AN ATTACHMENT
j7062e XMBP9556
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Parts for your 951B TRACK LOADER:

Pos. Part No Qty Parts name Comments
1. 3Y-1269 [3] BUSH  
  3Y-1274 [3] WASHER  
2. 3Y-1266 [4] INSULATOR  
  3Y-1267 [5] COLLER  
  3Y-1268 [4] BOLT  
  3Y-1251 [4] WASHER  
  3Y-1275 [8] NUT  
3. 3Y-1272 [2] WIRE ASSEM.  
4. 3Y-1263 [1] BRUSH HOLDER  
5. 3Y-1271 [1] WIRE ASSEM.  
6. 3Y-1273 [3] WIRE ASSEM.  
7. 3Y-1265 [1] RECTIFIER ASSEM.  
8. 3Y-1264 [1] RECTIFIER ASSEM.  
9. 3Y-1270 [1] WIRE ASSEM.  
 

#XMBP95560187
 

5S-9088: ALTERNATOR GP-CHARGING

5S9088 ALTERNATOR GROUP--Part 1 of 2
Part of 3Y5819 Alternator Arrangement
AN ATTACHMENT
j16480e XMBP9556
  For full view, you need register

Parts for your 951B TRACK LOADER:

Pos. Part No Qty Parts name Comments
1. 9S-2260 [1] PLATE  
2. 9S-2544 [4] SCREW  
3. 8H-0878 [6] LOCKWASHER  
4. 9S-2438 [2] SCREW  
5. 7H-2079 [7] LOCKWASHER  
6. 9S-2255 [1] COVER  
7. 9S-2262 [1] GASKET  
8. 9S-2246 [1] LEAD ASSEM.  
9. 9S-9830 [1] SCREW  
10. 8F-1326 [3] WASHER  
11. 9B-7233 [3] LOCKWASHER  
12. 9S-9829 [1] SCREW ASSEM.  
13. 4B-2043 [4] NUT  
14. 7N-0129 [1] REGULATOR ASSEM.  
15. 9S-2250 [1] GROMMET  
16. 9S-2542 [1] SCREW  
17. 9S-2437 [5] SCREW  
18. 9S-2389 [1] STUD ASSEM.  
19. 7N-0174 [1] HOUSING ASSEM.  
20. 9N-0943 [1] PLUG  
21. 5P-3418 [1] BEARING  
22. 9S-2396 [1] BUSHING  
23. 9S-2292 [1] HEAT SINK ASSEM.  
24. 9S-2300 [4] INSULATOR  
25. 9S-9830 [4] SCREW  
  9S-2247 [4] WASHER (Spring)  
  4B-4863 [4] WASHER (Plain)  
26. 9S-2007 [3] SCREW  
27. 9S-2301 [1] INSULATION  
28. 9S-2011 [1] SCREW  
29. 1L-4789 [1] LOCKWASHER  
  9S-2013 H [1] KIT (Terminal Relay)  
    (Consists of Bushing, "O" Ring & Hardware)
  9S-2012 H [1] KIT (Terminal Output)  
    (Consists of Gaskets, Terminal & Hardware)
  9S-2290 H [1] KIT (Heat Sink)  
    (Diode Junction Hardware)
  9S-2291 H [1] KIT (Heat Sink)  
    (Diode Hardware)
  H   NOT PART OF 5S9088 ALTERNATOR
 

#XMBP95560188
 

5S-9088: ALTERNATOR GP-CHARGING

5S9088 ALTERNATOR GROUP--Part 2 of 2
Part of 3Y5819 Alternator Arrangement
AN ATTACHMENT
j14355e XMBP9556
  For full view, you need register

Parts for your 951B TRACK LOADER:

Pos. Part No Qty Parts name Comments
1. 5P-3419 [1] RACE  
2. 9S-2248 [1] FIELD COIL AND SUPPORT ASSEM  
3. 9S-2004 [1] STATOR ASSEM  
4. 9S-2006 [1] INSULATOR  
5. 9S-2005 [1] GROMMET  
6. 9S-2014 [3] CLIP  
7. 9S-2302 [1] ROTOR ASSEM  
8. 9S-2390 [1] RETAINER ASSEM  
9. 9S-2391 [1] SEAL  
10. 9S-2256 [1] GASKET  
11. 9S-2261 [1] COLLAR  
12. 2F-5721 [1] BEARING  
13. 2P-5616 [1] FRAME  
14. 3B-4502 [4] LOCKWASHER  
15. 9S-2009 [4] BOLT  
16. 9S-2391 [1] SEAL  
17. 9S-2254 [1] COLLAR  
18. 9S-2252 [1] SLINGER  
19. 9S-2008 [4] SCREW  
20. 9S-2258 [1] FAN AND BAFFLE ASSEM.  
21. 7F-7621 [1] WASHER  
22. 2K-4821 [1] LOCKNUT  
 

#XMBP95560189
 

3Y-0373: BATTERY AND WIRING

BATTERY AND WIRING (3Y373 N/S)--Part 1 of 2
Effective with Serial No. 32F1197~32F1329
7H7290 Switch Assembly and 3Y1010 Harness Assembly parts are shown on Pages
156 and 158
j8608e XMBP9556
  For full view, you need register

Parts for your 951B TRACK LOADER:

Pos. Part No Qty Parts name Comments
1. 5K-8451 [2] CLIP  
2. 0S-1594 [1] BOLT  
3. 1D-4717 [2] NUT  
4. 3B-4506 [7] LOCKWASHER  
5. [1] CLIP  
6. 0L-1351 [1] BOLT  
7. 7H-7290 Y [1] SWITCH ASSEM. (Disconnect)  
    (See Separate Illustration)
  5A-3111 [1] PLATE  
8. 6K-8780 [1] CABLE ASSEM.  
9. 2M-0913 [2] TERMINAL  
10. 5A-5471 [1] CABLE ASSEM.  
  3D-2098 [1] TERMINAL ASSEM. (-)  
11. 2M-0913 [1] TERMINAL  
12. 9M-8406 [2] CLIP  
13. 0S-0509 [5] BOLT  
14. 7K-9777 [1] COVER  
15. 5M-2555 [1] CIRCUIT BREAKER  
16. 5K-7088 [1] CABLE ASSEM.  
17. 2M-0912 [2] TERMINAL  
18. 0S-1621 [1] BOLT  
  3B-4508 [1] LOCKWASHER  
19. 4K-5803 [10] TIE  
20. 5A-4143 [1] HOLD DOWN ASSEM.  
21. 8M-4972 [1] MAT  
22. 4S-9261 [2] BATTERY  
23. 6K-4355 [4] ROD  
  1B-4330 [4] NUT  
  3B-4504 [4] LOCKWASHER  
  4B-4276 [4] WASHER  
  3B-4608 [4] COTTER PIN  
24. 9M-1305 [1] LAMP ASSEM.  
  3H-2691 [1] BULB  
25. 7F-6429 [1] AMMETER  
26. 7S-6402 [1] SWITCH ASSEM.  
  7S-5432 [1] KNOB  
27. 8S-7713 [1] SWITCH ASSEM. (Heat & Start)  
  8F-3437 [1] LEVER  
  5L-7200 [1] SCREW  
  3B-4501 [1] LOCKWASHER  
28. 4K-8030 [2] CLIP  
29. 8M-7677 [1] LAMP ASSEM.  
  3H-2691 [1] BULB  
30. 3Y-1010 Y [1] HARNESS ASSEM.  
    (See Separate Illustration)
31. 5M-6668 [2] SCREW  
  3B-4501 [2] LOCKWASHER  
32. 5F-5990 [3] CLIP  
  Y   SEPARATE ILLUSTRATION
 

Information:

Engine News
Charging System Troubleshooting Guide Has Been Updated for All Engines {1406, 7569}
Charging System Troubleshooting Guide Has Been Updated for All Engines {1406, 7569}
Special Instruction
Upgrading Alternators To Include An Integrated Circuit Regulator{1405, 1410}
Upgrading Alternators To Include An Integrated Circuit Regulator{1405, 1410}
Charging System Troubleshooting {1406}
Charging System Troubleshooting {1406}
Procedure for Replacing Regulator Kit on All Engines {1405}
Procedure for Replacing Regulator Kit on All Engines {1405}
Procedure to Install Brush Holder Assembly to End Frame on All Engines {1405}
Procedure to Install Brush Holder Assembly to End Frame on All Engines {1405}
Specifications
Alternators
3304 VEHICULAR ENGINE
Alternator Regulator
3304 VEHICULAR ENGINE
Generators
3304 VEHICULAR ENGINE
Generator Regulators
3304 VEHICULAR ENGINE
Alternator
26SI Series Alternator
Alternator
HDB Series and M1 Series Heavy Duty Brushless Alternators
Alternator
N3 Series Brushless Alternators
Systems Operation
General Information
26SI Series Alternator
Component Description
26SI Series Alternator
Normal Operation
26SI Series Alternator
General Information
HDB Series and M1 Series Heavy Duty Brushless Alternators
Normal Operation
HDB Series and M1 Series Heavy Duty Brushless Alternators
Component Description
HDB Series and M1 Series Heavy Duty Brushless Alternators
General Information
N3 Series Brushless Alternators
Component Description
N3 Series Brushless Alternators
Normal Operation
N3 Series Brushless Alternators
Testing and Adjusting
T1 Alternator Output - Test
26SI Series Alternator
T3 Charging System - Test
26SI Series Alternator
T5 Alternator Current - Test
26SI Series Alternator
General Information
26SI Series Alternator
Component - Test
26SI Series Alternator
Field Winding - Test
HDB Series and M1 Series Heavy Duty Brushless Alternators
Capacitor - Test
HDB Series and M1 Series Heavy Duty Brushless Alternators
Stator - Test
HDB Series and M1 Series Heavy Duty Brushless Alternators
Rectifier - Test
HDB Series and M1 Series Heavy Duty Brushless Alternators
Residual Magnetism - Restore
HDB Series and M1 Series Heavy Duty Brushless Alternators
Regulator - Test
HDB Series and M1 Series Heavy Duty Brushless Alternators
Field Winding - Test
N3 Series Brushless Alternators
Capacitor - Test
N3 Series Brushless Alternators
Rectifier - Test
N3 Series Brushless Alternators
Stator - Test
N3 Series Brushless Alternators
Regulator - Test
N3 Series Brushless Alternators
Troubleshooting
General Information
HDB Series and M1 Series Heavy Duty Brushless Alternators
Charging System
N3 Series Brushless Alternators
MID 161 - CID 0168 - FMI 00
Product Link - PL522/523
MID 161 - CID 0168 - FMI 01
Product Link - PL522/523
MID 161 - CID 1251 - FMI 03
Product Link - PL522/523
MID 122 - CID 0168 - FMI 00
Product Link 121S/300
MID 122 - CID 0168 - FMI 01
Product Link 121S/300
MID 122 - CID 1251 - FMI 03
Product Link 121S/300
Disassembly and Assembly
Alternator - Assemble
26SI Series Alternator
Alternator - Disassemble
26SI Series Alternator
Alternator - Disassemble - M1 Series Alternator (35 Amp)
HDB Series and M1 Series Heavy Duty Brushless Alternators
Alternator - Assemble - M1 Series Alternator (35 Amp)
HDB Series and M1 Series Heavy Duty Brushless Alternators
Alternator - Assemble - HDB Series Alternator
HDB Series and M1 Series Heavy Duty Brushless Alternators
Alternator - Disassemble - HDB Series Alternator
HDB Series and M1 Series Heavy Duty Brushless Alternators
Alternator - Assemble
N3 Series Brushless Alternators
Alternator - Disassemble
N3 Series Brushless Alternators
Service Magazine
Charging System Troubleshooting Guide Has Been Updated for All Machines {1406, 7569}
Charging System Troubleshooting Guide Has Been Updated for All Machines {1406, 7569}

Caterpillar Parts SIS Catalog 951B :

Truck sale:

USD $19,900 
1968 CAT 951B

Construction Station
Wayne, Michigan
USD $5,254 
CAT 951B

Roberts Plant Engineers
Gloucestershire, United Kingdom
 
CAT 951B

Peterson & Associates Auctions
Minnesota
 
 
1974 CAT 951B

Ritchason Auctioneers, Inc.
Lebanon, Tennessee
 
CAT 951B

Tom Witvoet Sr. Equipment
Herscher, Illinois