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6N7138 ALTERNATOR AND MOUNTING GROUP--24 Volt, 35 Ampere--Type 2 Replaced by 8N1637 shown on Page 111A-1b 2L9808 Wiring and 2N6398 Alternator parts are shown on Pages 111 and 119 AN ATTACHMENT 3406




ELECTRICAL AND STARTING SYSTEM

ALTERNATOR GP-CHARGING
 

#SEBP10190440
 

6N-7138: ALTERNATOR AND MOUNTING GROUP

6N7138 ALTERNATOR AND MOUNTING GROUP--24 Volt, 35 Ampere--Type 2
Replaced by 8N1637 shown on Page 111A-1b
2L9808 Wiring and 2N6398 Alternator parts are shown on Pages 111 and 119
AN ATTACHMENT
c222612 SEBP1019
  For full view, you need register

Parts for your 3406 MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 6N-0216 [1] PULLEY  
2. 0S-1618 [2] BOLT  
  9M-1974 [2] WASHER  
3. 6N-7135 [1] VEE BELT  
4. 3N-2704 [1] PLATE  
5. 8S-5383 C [1] BLOCK  
6. 6N-7009 [1] SUPPORT ASSEM.  
7. 7H-4134 [33] STUD  
8. 3L-9689 [3] WASHER  
9. 1D-4720 [2] NUT  
  4D-3704 [2] WASHER  
10. 1D-4719 [2] NUT  
11. 2N-6398 YC [1] ALTERNATOR ASSEM.  
    (Separate Illustration)
12. 2A-1531 [4] BOLT  
13. 6N-6999 [1] SUPPORT ASSEM.  
14. 2N-7744 [1] SWITCH (oil pressure)  
15. 8M-7892 J [1] AMMETER (60 amp)  
16. 1H-2387 [3] SCREW  
  8F-1434 [3] LOCKWASHER  
17. 6N-3160 [1] REGULATOR ASSEM.  
18. 2N-5880 [1] HARNESS ASSEM.  
19. 9S-1366 [1] BOLT  
20. 2M-0849 [5] WASHER  
21. 1S-4589 [1] ROD  
  0S-1589 [1] BOLT  
22. 0L-1351 [2] BOLT  
  8M-9024 [2] WASHER  
23. 6N-3156 [1] PLATE  
24. 1A-2029 [2] BOLT  
  8F-6809 [2] WASHER  
25. 8F-0492 [1] SPACER  
  2L-9808 YH [1] WIRING GROUP  
    (Separate Illustration)
  H [1] WIRING DIAGRAM  
    (Grounded System-Use without Automatic Start-Stop)
  C   INDICATES CHANGE
  Y   SEPARATE ILLUSTRATION
  H   NOT SHOWN
  J   USE AS REQUIRED
 

#SEBP10190441
 

6N-7138: ALTERNATOR MOUNTING GROUP

6N7138 ALTERNATOR MOUNTING GROUP--24 Volt, 35 Ampere--Type 3
Replaced by 8N1637 shown on Page 111A-1b
FOR USE WITH 3N5680 ALTERNATOR GROUP
2L9808 Wiring parts are shown on Page 111. AN ATTACHMENT
c222613 SEBP1019
  For full view, you need register

Parts for your 3406 MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 6N-0216 [1] PULLEY  
2. 0S-1618 [2] BOLT  
  9M-1974 [2] WASHER  
3. 6N-7135 [1] VEE BELT  
4. 3N-2704 [1] PLATE  
5. 8S-5383 C [1] BLOCK  
6. 6N-7009 [1] SUPPORT ASSEM.  
7. 7H-4134 [33] STUD  
8. 3L-9689 [3] WASHER  
9. 1D-4720 [2] NUT  
  4D-3704 [2] WASHER  
10. 1D-4719 [2] NUT  
11. 1A-2029 [2] BOLT  
  8F-6809 [2] WASHER  
12. 2A-1531 [4] BOLT  
13. 6N-6999 [1] SUPPORT ASSEM.  
14. 2N-7744 C [1] SWITCH ASSEM. (oil pressure)  
15. 6N-3156 [1] PLATE  
16. 1H-2387 [3] SCREW  
  8F-1434 [3] LOCKWASHER  
17. 8F-0492 [1] SPACER  
18. 2N-5880 [1] HARNESS ASSEM.  
19. 9S-1366 [1] BOLT  
20. 2M-0849 [5] WASHER  
21. 1S-4589 [1] ROD  
  0S-1589 [1] BOLT  
22. 0L-1351 [2] BOLT  
  8M-9024 [2] WASHER  
  2L-9808 YH [1] WIRING GROUP  
    (Separate Illustration)
  C   INDICATES CHANGE
  Y   SEPARATE ILLUSTRATION
  H   NOT SHOWN
 

#SEBP10190442
 

8N-1637: MOUNTING GP-ALTERNATOR

8N1637 ALTERNATOR MOUNTING GROUP--Type 1
FOR USE WITH 24 VOLT, 35 AMPERE ALTERNATOR AND FRONT POWER TAKE-OFF
2L9808 Wiring parts are shown on Page 111. AN ATTACHMENT
c170332 SEBP1019
  For full view, you need register

Parts for your 3406 MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 6N-0216 [1] PULLEY  
2. 0S-1618 [2] BOLT  
  9M-1974 [2] WASHER  
3. 6N-7135 [1] VEE BELT  
4. 3N-2704 [1] PLATE  
5. 8S-5383 [1] BLOCK  
6. 6N-7009 [1] SUPPORT ASSEM.  
7. 7H-4134 [3] STUD  
8. 3L-9689 [3] WASHER  
9. 1D-4720 [2] NUT  
  5P-8246 [2] WASHER  
10. 1D-4719 [2] NUT  
11. 1A-2029 [2] BOLT  
  8F-6809 [2] WASHER  
12. 2A-1531 [1] BOLT  
13. 6N-6999 [1] SUPPORT ASSEM.  
14. 2N-7744 [1] SWITCH ASSEM. (oil pressure)  
15. 6N-3156 [1] PLATE  
16. 1H-2387 [3] SCREW  
  8F-1434 [3] LOCKWASHER  
17. 8F-0492 [1] SPACER  
18. 2N-5880 [1] HARNESS ASSEM.  
19. 9S-1366 [1] BOLT  
20. 5P-8245 [5] WASHER  
21. 1S-4589 [1] ROD  
  0S-1589 [1] BOLT  
22. 0L-1351 [2] BOLT  
  5M-2894 [2] WASHER  
  2L-9808 YH [1] WIRING GROUP  
    (Separate Illustration)
  H   NOT SHOWN
  Y   SEPARATE ILLUSTRATION
 

#SEBP10190443
 

8N-1637: MOUNTING GP-ALTERNATOR

8N1637 ALTERNATOR MOUNTING GROUP--Type 2
FOR USE WITH 24 VOLT, 35 AMPERE ALTERNATOR, FRONT POWER TAKE-OFF
AND 2L9808 WIRING KIT LISTED ON PAGE 111. AN ATTACHMENT
c183141 SEBP1019
  For full view, you need register

Parts for your 3406 MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 6N-0216 [1] PULLEY  
2. 0S-1618 [2] BOLT  
  9M-1974 [2] WASHER  
3. 6N-7135 [1] VEE BELT  
4. 3N-2704 [1] PLATE  
5. 8S-5383 [1] BLOCK  
6. 6N-7009 [1] SUPPORT ASSEM.  
7. 7H-4134 [3] STUD  
8. 3L-9689 [3] WASHER  
9. 1D-4720 [2] NUT  
  5P-8246 [2] WASHER  
10. 1D-4719 [2] NUT  
11. 1A-2029 [2] BOLT  
  8F-6809 [2] WASHER  
12. 2A-1531 [1] BOLT  
13. 6N-6999 [1] SUPPORT ASSEM.  
14. 9G-8010 C [1] SWITCH ASSEM. (oil pressure)  
15. 6N-3156 [1] PLATE  
16. 1H-2387 [3] SCREW  
  8F-1434 [3] LOCKWASHER  
17. 8F-0492 [1] SPACER  
18. 2N-5880 [1] HARNESS ASSEM.  
19. 9S-1366 [1] BOLT  
20. 5P-8245 [5] WASHER  
21. 1S-4589 [1] ROD  
  0S-1589 [1] BOLT  
22. 0L-1351 [2] BOLT  
  5M-2894 [2] WASHER  
  C   INDICATES CHANGE
 

#SEBP10190444
 

3N-5680: ALTERNATOR GP-CHARGING

3N5680 ALTERNATOR GROUP--24 Volt, 35 Ampere
FOR USE WITH 6N7138 ALTERNATOR MOUNTING GROUP. 2N6398 Alternator
parts are shown on Page 119. AN ATTACHMENT
c165331 SEBP1019
  For full view, you need register

Parts for your 3406 MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 2N-6398 CY [1] ALTERNATOR AS  
2. 6N-3160 [1] REGULATOR AS  
3. 8M-7892 [1] GAUGE AS-AMMETER (60A)  
  1H-4560 [2] NIPPLE-PLUG  
    (USE WITHOUT REMOTE
    MOUNTED INSTRUMENT
    PANEL)
  C   CHANGE FROM PREVIOUS TYPE
  Y   SEPARATE ILLUSTRATION
 

#SEBP10190445
 

3N-7683: ALTERNATOR GP

3N7683 ALTERNATOR GROUP--24 Volt, 60 Ampere
FOR USE WITH 6N7139 ALTERNATOR MOUNTING GROUP. 4N3986 Alternator parts
are shown on Pages 114 and 115. AN ATTACHMENT
c206955 SEBP1019
  For full view, you need register

Parts for your 3406 MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4N-3986 RY [1] ALTERNATOR GROUP  
    (Separate Illustration)
2. 8M-7892 B [1] AMMETER (use as required)  
3. 1H-4560 C [2] NIPPLE  
  F [1] WIRING DIAGRAM  
    (Use without Automatic Start-Stop)
  R   REMFG PART MAY BE AVAILABLE
  Y   SEPARATE ILLUSTRATION
  C   INDICATES CHANGE
  F   NOT SHOWN
  B   USE AS REQUIRED
 

#SEBP10190446
 

3N-7684: ALTERNATOR GP

3N7684 ALTERNATOR GROUP--30 or 32 Volt, 60 Ampere
FOR USE WITH 6N7139 ALTERNATOR MOUNTING GROUP. 4N3987 Alternator parts
are shown on Pages 116 and 117. AN ATTACHMENT
c206956 SEBP1019
  For full view, you need register

Parts for your 3406 MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4N-3987 RY [1] ALTERNATOR GROUP  
    (Separate Illustration)
2. 8M-7892 B [1] AMMETER (use as required)  
  1H-4560 BC [2] NIPPLE (use as required)  
  F [1] WIRING DIAGRAM  
    (Use without Automatic Start-Stop)
  R   REMFG PART MAY BE AVAILABLE
  Y   SEPARATE ILLUSTRATION
  C   INDICATES CHANGE
  F   NOT SHOWN
  B   USE AS REQUIRED
 

#SEBP10190447
 

6N-9294: ALTERNATOR GP-CHARGING

6N9294 ALTERNATOR GROUP--Charging--24 Volt, 35 Ampere--Part 1 of 2--Type 1
AN ATTACHMENT
c226124 SEBP1019
  For full view, you need register

Parts for your 3406 MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 5P-6920 [1] BEARING  
2. 7N-7806 [1] COIL ASSEM.  
3. 7N-7804 [1] STRATOR ASSEM.  
4. 7N-7795 [1] COLLAR  
5. 7N-7810 [1] FRAME ASSEM.  
6. 5P-9514 [1] BEARING  
7. 9L-2140 [1] PLATE  
8. 9L-6782 [1] SHIELD  
9. 7N-7800 [1] ROTOR ASSEM.  
10. 2K-4821 [1] LOCKNUT  
11. 7F-7621 [1] WASHER  
12. 9L-6783 [1] COLLAR  
13. 9L-2139 [1] WASHER  
14. 9N-1210 [1] FAN ASSEM.  
15. 7N-9020 [3] SCREW ASSEM.  
16. 9L-2137 [1] RETAINER ASSEM.  
17. 7N-7122 C [1] RECTIFIER ASSEM.  
18. 9S-2396 [1] BUSHING  
19. 9S-2007 [4] SCREW  
20. 7N-7809 [1] PLATE  
21. 7N-7805 C [1] HOUSING  
22. 7N-9024 [4] BOLT  
  C   INDICATES CHANGE
 

#SEBP10190448
 

6N-9294: ALTERNATOR GP-CHARGING

6N9294 ALTERNATOR GROUP--Charging--24 Volt, 35 Ampere--Part 2 of 2--Type 1
AN ATTACHMENT
c218759 SEBP1019
  For full view, you need register

Parts for your 3406 MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 7N-7807 [1] TERMINAL KIT (output)  
    (Includes Insulator, Screw, Washers, Lockwasher, Nut, & Adapter)
2. 7N-7808 [1] TERMINAL KIT  
    (Includes Stud, Bushings, Washers & Nut Assem.)
3. 9L-6770 [1] CAP  
4. 8N-0740 [5] SCREW ASSEM.  
5. 7N-9022 [2] SCREW ASSEM.  
  9N-0938 [2] WASHER  
6. 7N-9023 [2] SCREW ASSEM.  
7. 7N-7799 [1] REGULATOR ASSEM.  
8. 6N-1869 [4] NUT ASSEM.  
9. 7N-7811 [1] CONNECTOR  
10. 7N-9018 [3] SCREW ASSEM.  
11. 9N-1202 [1] DIODE ASSEM.  
12. 7N-7797 [2] INSULATOR  
13. 7N-9021 [1] SCREW ASSEM.  
  7N-7796 [1] BUSHING  
14. 7N-7802 [1] CAPACITOR ASSEM.  
  3N-4082 [1] BRACKET  
15. 7N-7798 [1] CONNECTOR  
16. 7N-7801 [1] CONNECTOR  
 

#SEBP10190449
 

6N-9294: ALTERNATOR GP-CHARGING

6N9294 ALTERNATOR GROUP--24 Volt, 35 Ampere--Type 2
AN ATTACHMENT
SEBP10190449 SEBP1019
  For full view, you need register

Parts for your 3406 MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  9G-8255 Y [1] ALTERNATOR GROUP--DELCO-REMY  
    - OR -
  7N-9720 Y [1] ALTERNATOR GROUP  
  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 And Regulators
3406 INDUSTRIAL & MARINE ENGINES
Alternator Regulator
3406 INDUSTRIAL & MARINE ENGINES
Alternator
26SI Series Alternator
Alternator
30SI Series and 34SI 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
30SI Series and 34SI Series Alternator
Normal Operation
30SI Series and 34SI Series Alternator
Component Description
30SI Series and 34SI 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
Information Release Memo
CAT REMAN ANNOUNCES AN ADDITIONAL AIR STARTER AND ADDITIONAL ALTERNATORS FOR CERTAIN ENGINE MODELS
CAT REMAN ANNOUNCES AN ADDITIONAL AIR STARTER AND ADDITIONAL ALTERNATORS FOR CERTAIN ENGINE MODELS
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
T1 Alternator Output - Test
30SI Series and 34SI Series Alternator
T2 Electrical System Current - Test
30SI Series and 34SI Series Alternator
T3 Charging System - Test
30SI Series and 34SI Series Alternator
T4 Alternator Drive System - Check
30SI Series and 34SI Series Alternator
T5 Alternator Current - Test
30SI Series and 34SI Series Alternator
T6 Residual Magnetism Restoration
30SI Series and 34SI Series Alternator
T7 Identifying Source of Current Draw - Test
30SI Series and 34SI Series Alternator
T8 Alternator Overcharging - Test
30SI Series and 34SI Series Alternator
General Information
30SI Series and 34SI Series Alternator
Initial Troubleshooting Procedure
30SI Series and 34SI Series Alternator
Component - Test
30SI Series and 34SI 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
N3 Series Brushless Alternators
Charging System
N3 Series Brushless Alternators
Disassembly and Assembly
Alternator - Assemble
26SI Series Alternator
Alternator - Disassemble
26SI Series Alternator
Alternator - Disassemble
30SI Series and 34SI Series Alternator
Alternator - Assemble
30SI Series and 34SI 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 3406 :

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