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6F7691 AIR RECEIVER GROUP--28 Cubic Foot Capacity D399 INDUSTRIAL ENGINE


ELECTRICAL AND STARTING SYSTEM
STARTING MOTOR GP
BASIC ENGINE
DRIVE GP-FAN

INDUSTRIAL ENGINE D399 INDUSTRIAL ENGINE 35B
 D399 ENGINE 35B00001-00687 UE070074 D399 35B   (1967)

ELECTRICAL AND STARTING SYSTEM

STARTING MOTOR GP
MOTOR GP-AIR STARTING
3H-3170 MOTOR GP-AIR STARTING
VALVE GP-WHISTLE
3L-9922 VALVE GP-WHISTLE
AIR RECEIVER GP
6F-7691 AIR RECEIVER GP
SILENCER GP-AIR STARTING
7L-6912 SILENCER GP-AIR STARTING
VALVE GP-AIR STARTING
7L-6911 VALVE GP-AIR STARTING
SILENCER GP-AIR STARTING
3N-9492 SILENCER GP-AIR STARTING
 

#UE0700740340
 

6F-7691: AIR RECEIVER GP

6F7691 AIR RECEIVER GROUP--28 Cubic Foot Capacity
c58420 UE070074
6F7691 AIR RECEIVER GP Parts scheme
  For full view, you need register

Parts for your D399 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  6F-7731 [1] GAUGE  
  6F-7732 [1] BUSHING  
  6F-7701 [1] TEE  
  7F-6923 [1] BUSHING  
  6F-7699 [1] BUSHING  
  6F-7702 [1] VALVE  
  7F-6654 [1] NIPPLE  
  3L-2877 [1] DISC  
    (PART OF VALVE 1L7805)
  6F-7692 [1] AIR RECEIVER  
  1L-7805 [1] VALVE  
  9B-3523 [1] BUSHING  
  6F-6045 [2] NIPPLE  
  6F-7694 [1] COCK  
 

#UE0700740341
 

7L-6912: SILENCER GP-AIR STARTING

7L6912 AIR SILENCER AND VAPOR ARRESTER GROUP
FOR USE WITH AIR STARTING MOTOR GROUPS
SHOWN ON PAGES 68 THROUGH 71B
c104941 UE070074
7L6912 SILENCER GP-AIR STARTING Parts scheme
  For full view, you need register

Parts for your D399 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. [1] SILENCER  
2. [1] GASKET  
3. [1] ELBOW  
4. [2] BOLT (3.25" Long)  
5. [4] LOCKWASHER  
6. [2] BOLT (1.25" Long)  
7. [1] GASKET  
8. [4] BOLT  
9. [4] LOCKWASHER  
10. [1] JAR  
11. [1] RING  
 

#UE0700740342
 

7L-6911: VALVE GP-AIR STARTING

7L6911 REGULATING AND PRESSURE REDUCING VALVE GROUP
FOR USE WITH AIR STARTING MOTOR GROUPS
SHOWN ON PAGES 68 THROUGH 71B
c115384 UE070074
7L6911 VALVE GP-AIR STARTING Parts scheme
  For full view, you need register

Parts for your D399 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 5B-7661 [1] NIPPLE  
2. 1L-2073 Y [1] VALVE  
    (See Separate Illustration)
3. 1L-2893 [1] NIPPLE  
    (Used without R.H. Air Motor Groups)
4. 6F-8856 [1] ELBOW  
  Y   SEPARATE ILLUSTRATION
 

#UE0700740343
 

3N-9492: SILENCER GP-AIR STARTING

3N9492 AIR STARTING SILENCER GROUP
FOR USE WITH 3N9570, 3N9571, 3N9572, 3N9573, 3N9568, 3N9569, 3N9574 AND 3N9575 AIR STARTING MOTOR GROUPS
c156562 UE070074
3N9492 SILENCER GP-AIR STARTING Parts scheme
  For full view, you need register

Parts for your D399 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 1H-4725 [1] SILENCER  
2. 0L-0478 [1] BOLT  
  1B-4203 [1] NUT  
  5M-2894 [1] WASHER  
  1H-0767 [1] SPACER  
3. 3B-4506 [7] LOCKWASHER  
4. 5N-2595 [1] BRACKET  
5. 1A-2029 [2] BOLT  
  4B-1040 [8] WASHER  
6. 5N-2596 [1] BRACKET  
7. 0S-1625 [2] BOLT  
  3B-4510 [2] LOCKWASHER  
  8D-1251 [2] SPACER  
8. 3B-7296 [1] NIPPLE  
9. 3B-6500 [1] ELBOW  
10. 3N-9382 [1] PIPE  
11. 0S-1571 [4] BOLT  
12. 3N-9309 [1] FLANGE  
13. 1H-4768 [1] GASKET  
14. 5F-6658 [1] JAR  
15. 7H-2444 [1] SEAL  
16. 2L-3658 [1] STRAP  
  8F-3273 [1] LINING  
 

#UE0700740344
 

3N-9501: VALVE GP-AIR STARTING

3N9501 REGULATOR AND PRESSURE REDUCING VALVE GROUP
FOR USE WITH 3N9570, 3N9571, 3N9572, 3N9573, 3N9568, 3N9569, 3N9574 AND
3N9575 AIR STARTING MOTOR GROUPS. 1L2073 Valve parts are shown on Page 77
c156561 UE070074
3N9501 VALVE GP-AIR STARTING Parts scheme
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Parts for your D399 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 5B-7661 [1] NIPPLE  
2. 1L-2073 Y [1] VALVE  
    (Separate Illustration)
3. 6L-7349 [1] NIPPLE  
  Y   SEPARATE ILLUSTRATION
 

#UE0700740345
 

1L-2073: VALVE GP-PRESSURE REDUCING

1L2073 REGULATING VALVE
PART OF 7L6911 REGULATING AND PRESSURE REDUCING VALVE GROUP
c76029 UE070074
1L2073 VALVE GP-PRESSURE REDUCING Parts scheme
  For full view, you need register

Parts for your D399 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  1L-9048 [1] NUT  
  1H-9569 [1] BUTTON  
  1L-9080 [6] BOLT  
  1L-9079 [6] NUT  
  1H-9574 [1] BUTTON  
  1H-9575 [1] CYLINDER  
  1H-9576 [1] PISTON ASSEM.  
  1L-2072 [1] BODY  
  1H-9581 [1] PLUG ASSEM.  
  1H-9568 [1] SCREW  
  [1] CHAMBER  
  1L-9049 [1] SPRING  
  1H-9572 [1] PLATE  
  1H-9573 [1] DIAPHRAGM  
  1H-9577 [1] SCREEN  
  1H-9578 [1] SPRING  
  5B-7890 [1] PLUG  
  1H-9580 [1] GASKET  
 

#UE0700740346
 

7L-7879: RADIATOR AND FAN DRIVE GROUP

7L7879 RADIATOR AND FAN DRIVE GROUP--Blower
S.A.E. STANDARD ENGINE ROTATION--125 DEGREES F. AMBIENT AIR
7L6776 Fan parts are shown on Page 82A
c122665 UE070074
7L7879 RADIATOR AND FAN DRIVE GROUP Parts scheme
  For full view, you need register

Parts for your D399 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 6L-9850 [1] CAP  
2. 5M-4564 [8] CLAMP  
3. 7L-6776 Y [1] FAN AND RADIATOR ASSEM.  
    (See Separate Illustration)
4. 7L-7882 [1] VEE BELT SET (6 Belts)  
5. 7L-8254 [2] TUBE (Inlet)  
6. 7L-8251 [2] SPACER  
7. 0S-1591 [4] BOLT  
8. 1D-4717 [12] NUT  
9. 3B-4506 [21] LOCKWASHER  
10. 7L-8252 [2] PLATE  
11. 0S-1621 [4] BOLT  
12. 3B-4508 [8] LOCKWASHER  
13. 0S-1588 [13] BOLT  
14. 4L-8128 [2] GASKET  
15. 7L-8257 [2] FLANGE  
16. 6L-3930 [4] HOSE  
17. 7L-8255 [2] CLAMP  
18. 1D-4608 [2] BOLT  
  1B-4331 [2] NUT  
  3B-4512 [2] LOCKWASHER  
  4B-4283 [4] WASHER  
19. 7B-3235 [4] BOLT  
  4B-4280 [8] WASHER  
20. 7L-6796 [1] PULLEY  
21. 7L-8801 [2] HOSE  
22. 6L-9891 [4] CLAMP  
23. 7L-8253 [1] TUBE (Outlet)  
24. 7L-6802 [1] COUPLING ASSEM.  
25. 5S-2552 [1] SEAL  
26. 1J-2150 [1] SEAL  
27. 3D-4603 [2] PLUG  
    (Parts of 7L6802 Coupling Assem.)
28. 7L-6798 [1] SHAFT  
  0L-0850 [1] KEY  
29. 7L-6799 [1] BRACKET  
30. 7L-6731 [1] PILLOW BLOCK ASSEM.  
  8L-8520 [1] COLLAR  
    (Part of 7L6731 Pillow Block Assem.)
31. 0S-1594 [4] BOLT  
  4B-4278 [4] WASHER  
32. 7L-8256 [1] CLAMP  
33. 7L-5054 [1] BRACKET  
  Y   SEPARATE ILLUSTRATION
 

#UE0700740347
 

7L-7877: RADIATOR AND FAN DRIVE GROUP

7L7877 RADIATOR AND FAN DRIVE GROUP--Blower
S.A.E. STANDARD ENGINE ROTATION--110 DEGREES F. AMBIENT AIR
6L3372 Radiator and Blower Fan parts are shown on Page 82
c122664 UE070074
7L7877 RADIATOR AND FAN DRIVE GROUP Parts scheme
  For full view, you need register

Parts for your D399 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 6L-9850 [1] CAP  
2. 2S-0387 [2] HOSE  
3. 7L-8802 [2] CONNECTOR  
4. 9M-6738 [4] CLAMP  
5. [2] TUBE (Inlet)  
6. 7L-8251 [2] SPACER  
7. 0S-1591 [4] BOLT  
8. 1D-4717 [12] NUT  
9. 3B-4506 [21] LOCKWASHER  
10. 7L-8252 [2] PLATE  
11. 0S-1621 [4] BOLT  
12. 3B-4508 [8] LOCKWASHER  
13. 0S-1588 [13] BOLT  
14. 4L-8128 [2] GASKET  
15. 7L-8257 [2] FLANGE  
16. 6L-3930 [4] HOSE  
17. 5M-4564 [8] CLAMP  
18. 7L-8255 [2] CLAMP  
19. 6L-3372 Y [1] FAN AND RADIATOR ASSEM.  
    (See Separate Illustration)
20. 5L-7426 [1] VEE BELT SET (4 belts)  
21. 1D-4608 [2] BOLT  
  1B-4331 [2] NUT  
  3B-4512 [2] LOCKWASHER  
  4B-4283 [4] WASHER  
22. 7B-3235 [4] BOLT  
  4B-4280 [8] WASHER  
23. 5L-7373 [1] PULLEY  
24. 7L-6802 [1] COUPLING ASSEM.  
25. 5S-2552 [1] SEAL  
26. 1J-2150 [1] SEAL  
27. 3D-4603 [2] PLUG  
    (Parts of 7L6802 Coupling Assem.)
28. 7L-6798 [1] SHAFT  
  0L-0850 [1] KEY  
29. 7L-6799 [1] BRACKET  
30. 7L-6731 [1] PILLOW BLOCK  
  8L-8520 [1] COLLAR  
    (Part of 7L6731 Pillow Block)
31. 7L-8253 [1] TUBE (Outlet)  
32. 0S-1594 [4] BOLT  
  4B-4278 [4] WASHER  
33. 7L-8256 [1] CLAMP  
34. 7L-5054 [1] BRACKET  
35. 6L-9891 [4] CLAMP  
36. 7L-8801 [2] HOSE  
37. 7L-8803 [1] CONNECTOR  
38. 9M-5242 [1] HOSE  
39. 6L-4552 [2] CLAMP  
  Y   SEPARATE ILLUSTRATION
 

#UE0700740348
 

7L-7880: RADIATOR AND FAN DRIVE GROUP

7L7880 RADIATOR AND FAN DRIVE GROUP--Suction
S.A.E. STANDARD ENGINE ROTATION--125 DEGREES F. AMBIENT AIR
7L7881 Fan and Radiator parts are shown on Page 82B
c122666 UE070074
7L7880 RADIATOR AND FAN DRIVE GROUP Parts scheme
  For full view, you need register

Parts for your D399 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 6L-9850 [1] CAP  
2. 5M-4564 [8] CLAMP  
3. 7L-7881 Y [1] FAN AND RADIATOR ASSEM.  
    (See Separate Illustration)
4. 7L-7882 [1] VEE BELT SET (6 Belts)  
5. 7L-8254 [2] TUBE (Inlet)  
6. 7L-8251 [2] SPACER  
7. 0S-1591 [4] BOLT  
8. 1D-4717 [12] NUT  
9. 3B-4506 [21] LOCKWASHER  
10. 7L-8252 [2] PLATE  
11. 0S-1621 [4] BOLT  
12. 3B-4508 [8] LOCKWASHER  
13. 0S-1588 [13] BOLT  
14. 4L-8128 [2] GASKET  
15. 7L-8257 [2] FLANGE  
16. 6L-3930 [4] HOSE  
17. 7L-8255 [2] CLAMP  
18. 1D-4608 [2] BOLT  
  1B-4331 [2] NUT  
  3B-4512 [2] LOCKWASHER  
  4B-4283 [4] WASHER  
19. 7B-3235 [4] BOLT  
  4B-4280 [8] WASHER  
20. 7L-6796 [1] PULLEY  
21. 7L-8801 [2] HOSE  
22. 6L-9891 [4] CLAMP  
23. 7L-8253 [1] TUBE (Outlet)  
24. 7L-6802 [1] COUPLING ASSEM.  
25. 5S-2552 [1] SEAL  
26. 1J-2150 [1] SEAL  
27. 3D-4603 [2] PLUG  
    (Parts of 7L6802 Coupling Assem.)
28. 7L-6798 [1] SHAFT  
  0L-0850 [1] KEY  
29. 7L-6799 [1] BRACKET  
30. 7L-6731 [1] PILLOW BLOCK  
  8L-8520 [1] COLLAR  
    (Part of 7L6731 Pillow Block)
31. 0S-1594 [4] BOLT  
  4B-4278 [4] WASHER  
32. 7L-8256 [1] CLAMP  
33. 7L-5054 [1] BRACKET  
  Y   SEPARATE ILLUSTRATION
 

#UE0700740349
 

7L-7878: RADIATOR AND FAN DRIVE GROUP

7L7878 RADIATOR AND FAN DRIVE GROUP--Suction
S.A.E. STANDARD ENGINE ROTATION--110 DEGREES F. AMBIENT AIR
7L2589 Radiator and Suction Fan parts are shown on Page 83
c122667 UE070074
7L7878 RADIATOR AND FAN DRIVE GROUP Parts scheme
  For full view, you need register

Parts for your D399 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 6L-9850 [1] CAP  
2. 2S-0387 [2] HOSE  
3. 7L-8802 [2] CONNECTOR  
4. 9M-6738 [4] CLAMP  
5. 7L-8254 [2] TUBE (Inlet)  
6. 7L-8251 [2] SPACER  
7. 0S-1591 [4] BOLT  
8. 1D-4717 [12] NUT  
9. 3B-4506 [21] LOCKWASHER  
10. 7L-8252 [2] PLATE  
11. 0S-1621 [4] BOLT  
12. 3B-4508 [8] LOCKWASHER  
13. 0S-1588 [13] BOLT  
14. 4L-8128 [2] GASKET  
15. 7L-8257 [2] FLANGE  
16. 6L-3930 [4] HOSE  
17. 5M-4564 [8] CLAMP  
18. 7L-8255 [2] CLAMP  
19. 7L-2589 Y [1] FAN AND RADIATOR ASSEM.  
    (See Separate Illustration)
20. 5L-7426 [1] VEE BELT SET (4 belts)  
21. 1D-4608 [2] BOLT  
  1B-4331 [2] NUT  
  3B-4512 [2] LOCKWASHER  
  4B-4283 [4] WASHER  
22. 7B-3235 [4] BOLT  
  4B-4280 [8] WASHER  
23. 5L-7373 [1] PULLEY  
24. 7L-6802 [1] COUPLING ASSEM.  
25. 5S-2552 [1] SEAL  
26. 1J-2150 [1] SEAL  
27. 3D-4603 [2] PLUG  
    (Parts of 7L6802 Coupling Assem.)
28. 7L-6798 [1] SHAFT  
  0L-0850 [1] KEY  
29. 7L-6799 [1] BRACKET  
30. 7L-6731 [1] PILLOW BLOCK ASSEM.  
  8L-8520 [1] COLLAR  
    (Part of 7L6731 Pillow Block Assem.)
31. 7L-8253 [1] TUBE (Outlet)  
32. 0S-1594 [4] BOLT  
  4B-4278 [4] WASHER  
33. 7L-8256 [1] CLAMP  
34. 7L-5054 [1] BRACKET  
35. 6L-9891 [4] CLAMP  
36. 7L-8801 [2] HOSE  
37. 7L-8803 [1] CONNECTOR  
38. 9M-5242 [1] HOSE  
39. 6L-4552 [2] CLAMP  
  Y   SEPARATE ILLUSTRATION
 

Information:

General Service Information
Introduction
DELCO REMY CRANKING MOTORS 30-MT, 35-MT, 40-MT, 50-MT SERIES
Delco Remy
DELCO REMY CRANKING MOTORS 30-MT, 35-MT, 40-MT, 50-MT SERIES
Engine News
New Air Starting Motor Group Available
1982/08/25
New Air Starting Motor Has A Slip-Clutch Type Drive Gear
1983/10/26
Bypass Valve Can Be Installed To Keep Prelubrication Oil At The Correct Level
1984/04/11
12-Volt Starter Solenoid Available For 7T2265 And 7T2266 Starting Motors
1987/02/01
Modification To Prevent Starter From Remaining Engaged With Flywheel After Engine Starts
1987/03/01
Testing The Starter On The Engine
1987/05/01
Remanufactured Heavy-Duty Starters And High-Amp Alternators
1987/06/01
Be Sure Battery Cable To Starter Connection Has Correct Torque
1988/03/01
Magnetic Switches (Starter Relays) Improved
1988/03/01
Air Starter Relay Valve Improved
1991/07/01
Improved Remanufactured Electric Starting Motors are Now Available {1453}
2003/11/01
Special Instruction
Installation of Electric Starting Motors{1453}
Installation of Electric Starting Motors{1453}
Caterpillar PRELUB<SUP>&reg;</SUP> Diagnostics{1469}
Caterpillar PRELUB® Diagnostics{1469}
Solenoid (Starting Motor) &minus; Replace{1467}
Solenoid (Starting Motor) − 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}
Specifications
Starting Motors
D399, G399, D398, G398, D379, G379 ENGINES
Starter Solenoids
D399, G399, D398, G398, D379, G379 ENGINES
Prelube Motor Relay; (Later Type)
D399, G399, D398, G398, D379, G379 ENGINES
Air Valves For Air Starting System
D399, G399, D398, G398, D379, G379 ENGINES
Prelubrication Pump And Air Motor
D399, G399, D398, G398, D379, G379 ENGINES
Air Starting Motors<BR> (3H3170, 3H3171)
D399, G399, D398, G398, D379, G379 ENGINES
Prelube Pump
D379, D398, D399 INDUSTRIAL & MARINE ENGINES
Starter Motor
D379, D398, D399 INDUSTRIAL & MARINE ENGINES
Starter Solenoids
D379, D398, D399 INDUSTRIAL & MARINE ENGINES
Pressure Regulating Valve For Air Starting Motor
D379, D398, D399 INDUSTRIAL & MARINE ENGINES
Air Starting Motor
D379, D398, D399 INDUSTRIAL & MARINE ENGINES
Hydraulic Starting Motor
D379, D398, D399 INDUSTRIAL & MARINE ENGINES
Charging Pump For Hydraulic Starting
D379, D398, D399 INDUSTRIAL & MARINE ENGINES
Hand Pump For Hydraulic Starter
D379, D398, D399 INDUSTRIAL & MARINE ENGINES
Pressure Accumulator For Hydraulic Starter
D379, D398, D399 INDUSTRIAL & MARINE ENGINES
Starting Motor
37-MT, 41-MT, and 42-MT Series Starting Motors
Starting Motor
Starting Motor - Delco 50-MT
Systems Operation
General Information
37-MT, 41-MT, and 42-MT Series Starting Motors
Component Description
37-MT, 41-MT, and 42-MT Series Starting Motors
Normal Operation
37-MT, 41-MT, and 42-MT Series Starting Motors
Component Description
Starting Motor - Delco 50-MT
General Information
Starting Motor - Delco 50-MT
Normal Operation
Starting Motor - Delco 50-MT
Testing and Adjusting
Engaged Starting Motor - Troubleshoot
Electronic Modular Control Panel II (EMCP II) For MUI Engines
No Load - Test
37-MT, 41-MT, and 42-MT Series Starting Motors
Brush and Brush Holder - Check
37-MT, 41-MT, and 42-MT Series Starting Motors
Pinion Clearance - Adjust
37-MT, 41-MT, and 42-MT Series Starting Motors
Starting Motor Solenoid - Test
37-MT, 41-MT, and 42-MT Series Starting Motors
Starting Motor Magnetic Switch - Test
Electronic Modular Control Panel II (EMCP II) For MUI Engines
Starting Motor Solenoid - Test
Starting Motor - Delco 50-MT
Field Winding - Test
Starting Motor - Delco 50-MT
Armature - Test
Starting Motor - Delco 50-MT
Brush and Brush Holder - Check
Starting Motor - Delco 50-MT
Pinion Drive - Check
Starting Motor - Delco 50-MT
No Load - Test
Starting Motor - Delco 50-MT
Pinion Clearance - Adjust
Starting Motor - Delco 50-MT
Troubleshooting
Engine Does Not Crank with Starting Motor On and Pinion Engaging Ring Gear
37-MT, 41-MT, and 42-MT Series Starting Motors
Starting Motor Does Not Turn or Turns Slowly
37-MT, 41-MT, and 42-MT Series Starting Motors
General Information
37-MT, 41-MT, and 42-MT Series Starting Motors
General Information
Starting Motor - Delco 50-MT
Pinion Does Not Engage Ring Gear
Starting Motor - Delco 50-MT
Engine Does Not Crank with Starting Motor On and Pinion Engaging Ring Gear
Starting Motor - Delco 50-MT
Starting Motor Continues to Operate after Start Switch Has Been Released
Starting Motor - Delco 50-MT
Pinion Continues to Engage after Engine Starts
Starting Motor - Delco 50-MT
Starting Motor Does Not Turn or Turns Slowly
Starting Motor - Delco 50-MT
Disassembly and Assembly
Air Starting Motor
D399, G399, D398, G398, D379, G379 ENGINES
Prelubrication Oil Pump (D399)
D379, D398, D399 INDUSTRIAL & MARINE ENGINES
Sump Pump
D379, D398, D399 INDUSTRIAL & MARINE ENGINES
Electric Starting Motors
D379, D398, D399 INDUSTRIAL & MARINE ENGINES
Air Starter
D379, D398, D399 INDUSTRIAL & MARINE ENGINES
Starting Motor - Disassemble - 37-MT and 41-MT
37-MT, 41-MT, and 42-MT Series Starting Motors
General Information
37-MT, 41-MT, and 42-MT Series Starting Motors
Starting Motor - Assemble - 37-MT and 41-MT
37-MT, 41-MT, and 42-MT Series Starting Motors
Starting Motor - Disassemble - 42-MT
37-MT, 41-MT, and 42-MT Series Starting Motors
Starting Motor - Assemble - 42-MT
37-MT, 41-MT, and 42-MT Series Starting Motors
General Information
Starting Motor - Delco 50-MT
Starting Motor - Disassemble
Starting Motor - Delco 50-MT
Starting Motor - Assemble
Starting Motor - Delco 50-MT
Service Magazine
Replacement Of Brush Holder Pins In Delco-Remy Electric Starting Motors{1453}
1982/06/28
New Air Starting Motor Group Available{1451}
1982/07/19
New Air Starting Motor Has A Slip-Clutch Type Drive Gear{1451}
1983/10/17
Bypass Valve Can Be Installed To Keep Prelubrication Oil At The Correct Level{1319}
1984/04/09
New Start Switch Used {1416,1453}
1986/07/07
Adjust Bosch Solenoid If Replaced Or Reinstalled{1407,1453}
1986/11/10
12-Volt Starter Solenoid Available For 7T2265 And 7T2266 Starting Motors{1407}
1987/02/16
Modification To Prevent Starter From Remaining Engaged With Flywheel After Engine Starts{1400,1450}
1987/03/16
Testing The Starter On The Engine{1401,1450}
1987/05/04
Remanufactured Heavy-Duty Starters And High-Amp Alternators{1405,1453}
1987/05/25
Be Sure Battery Cable-To-Starter Connection Has Correct Torque{1453}
1988/03/14
Magnetic Switches (Starter Relays) Improved{1450}
1988/03/14
Two Plug Assemblies (Booster Cables) Are Available To Start Machines{1401,1453}
1979/11/05
Limitations On Engine Cranking Time{1453,1401}
1989/03/27
Causes And Effects Of Low Battery Voltage On Electric Starters{1401,1453,1467}
1989/04/24
Air Starter Relay Valve Improved{1462}
1991/06/24

Caterpillar Parts SIS Catalog D399 :

VALVE GP-WHISTLE
3L-9922 VALVE GP-WHISTLE
MOTOR GP-AIR STARTING
3H-3170 MOTOR GP-AIR STARTING
LUG
3H-3171 LUG
LUG
3H-3171 LUG
CHANGEOVER GP
4N-4985 CHANGEOVER GP
CHANGEOVER GP
4N-6019 CHANGEOVER GP
MOTOR AS-AIR
6L-6731 MOTOR AS-AIR
MOTOR AS-AIR
6L-6731 MOTOR AS-AIR
SILENCER GP-AIR STARTING
7L-6912 SILENCER GP-AIR STARTING
VALVE GP-AIR STARTING
7L-6911 VALVE GP-AIR STARTING
SILENCER GP-AIR STARTING
3N-9492 SILENCER GP-AIR STARTING
VALVE GP-AIR STARTING
3N-9501 VALVE GP-AIR STARTING
VALVE GP-PRESSURE REDUCING
1L-2073 VALVE GP-PRESSURE REDUCING
RADIATOR AND FAN DRIVE GROUP
7L-7879 RADIATOR AND FAN DRIVE GROUP
RADIATOR AND FAN DRIVE GROUP
7L-7877 RADIATOR AND FAN DRIVE GROUP
RADIATOR AND FAN DRIVE GROUP
7L-7880 RADIATOR AND FAN DRIVE GROUP

Truck sale:

 
 
Caterpillar D399
- Industrial engines
WHEELER MACHINERY CO.
Caterpillar D399, Industriemaschinen, Bau-Und Bergbauausrüstung
130.000 
Caterpillar D399, Industriemaschinen, Bau-Und Bergbauausrüstung
- Industrial engines
LOUISIANA CAT POWER SYSTEMS
CAT D399
USD $12,000 
CAT D399

L&K Machinery
CAT D399
USD $8,995 
CAT D399

Surplus Heavy Equipment & Parts
Long Branch, New Jersey
 
 
CAT D399

Yoder & Frey Auctioneers
Ashland, Ohio
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