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4N2623 CYLINDER HEAD GROUP--For Precombustion Chambered Turbocharged Aftercooled Engine Serial No. 38S3677 to 38S6174 and 38S6177 to 38S6329 inclusive 6N9975 Cylinder Head parts are shown on Page 52A-2 3412


BASIC ENGINE
CYLINDER HEAD GP

ENGINE - MACHINE 3412 ENGINE - MACHINE 38S
 3412 INDUSTRIAL ENGINE 38S00001-13235 SEBP1101 3412 38S   (2018)

BASIC ENGINE

CYLINDER HEAD GP
CYLINDER HEAD GP
4N-2623 CYLINDER HEAD GP
CYLINDER HEAD GP
4N-2623 CYLINDER HEAD GP
CYLINDER HEAD GP
4N-2623 CYLINDER HEAD GP
CYLINDER HEAD GP
4N-2623 CYLINDER HEAD GP
CYLINDER HEAD GP
4N-2623 CYLINDER HEAD GP
CYLINDER HEAD GP
4N-2623 CYLINDER HEAD GP
 

#SEBP11010130
 

4N-2623: CYLINDER HEAD GP

4N2623 CYLINDER HEAD GROUP--For Precombustion Chambered Turbocharged Aftercooled Engine
Serial No. 38S3677 to 38S6174 and 38S6177 to 38S6329 inclusive
6N9975 Cylinder Head parts are shown on Page 52A-2
c223805 SEBP1101
4N2623 CYLINDER HEAD GP Parts scheme
  For full view, you need register

Parts for your 3412 ENGINE - MACHINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4N-3714 [12] CHAMBER ASSEM.  
2. 2S-2251 [12] SEAL  
3. 4N-7253 [12] GASKET  
4. 5M-6214 [2] PLUG  
5. 6N-9975 Y [2] CYLINDER HEAD  
    (Separate Illustration)
6. 0L-1352 [19] BOLT  
7. 3J-5390 [2] PLUG  
8. 3J-5389 [2] PLUG  
9. 1B-5174 [2] PLUG  
10. 4S-6137 [24] STUD  
11. 4N-2578 [2] GASKET  
12. 2H-3750 [40] BOLT  
  5H-1504 [40] WASHER  
13. 4N-2269 [48] SEAL  
14. 5P-0063 [4] PLUG  
15. 4N-0932 [2] PLUG  
16. 1A-5183 C [2] BOLT  
17. 5M-2894 C [5] WASHER  
18. 5B-2638 [2] BOLT  
19. 6N-6733 C [1] SUPPORT  
20. 6N-6734 C [1] SUPPORT  
21. 2B-0858 [2] PLUG  
22. 9N-2583 [1] BRACKET  
23. 8S-9191 [3] BOLT  
24. 9N-2607 [1] BRACKET  
25. 0S-1591 [2] BOLT  
  C   INDICATES CHANGE
  Y   SEPARATE ILLUSTRATION
 

#SEBP11010131
 

4N-2623: CYLINDER HEAD GP

4N2623 CYLINDER HEAD GROUP--For Precombustion Chambered Turbocharged Aftercooled Engine
Serial No. 38S6175, 38S6176 and 38S6330 to 38S12550 inclusive. 7N847--Page 52A.04
c174952 SEBP1101
4N2623 CYLINDER HEAD GP Parts scheme
  For full view, you need register

Parts for your 3412 ENGINE - MACHINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4N-3714 [12] CHAMBER ASSEM.  
2. 2S-2251 [12] SEAL  
3. 4N-7253 [12] GASKET  
4. 5M-6214 [2] PLUG  
5. 7N-0847 CY [2] CYLINDER HEAD  
    (Separate Illustration)
6. 0L-1352 [19] BOLT  
7. 3J-5390 [2] PLUG  
8. 3J-5389 [2] PLUG  
9. 1B-5174 [2] PLUG  
10. 4S-6137 [24] STUD  
11. 4N-2578 [2] GASKET  
12. 2H-3750 [40] BOLT  
  5H-1504 [40] WASHER  
13. 4N-2269 [48] SEAL  
14. 5P-0063 [4] PLUG  
15. 4N-0932 [2] PLUG  
16. 1A-5183 [2] BOLT  
17. 5M-2894 [5] WASHER  
18. 5B-2638 [2] BOLT  
19. 6N-6733 [1] SUPPORT  
20. 6N-6734 [1] SUPPORT  
21. 2B-0858 [2] PLUG  
22. 9N-2583 [1] BRACKET  
23. 8S-9191 [3] BOLT  
24. 9N-2607 [1] BRACKET  
25. 0S-1591 [2] BOLT  
  C   INDICATES CHANGE
  Y   SEPARATE ILLUSTRATION
 

#SEBP11010132
 

4N-2623: CYLINDER HEAD GP

4N2623 CYLINDER HEAD GROUP
For Precombustion Chambered Turbocharged Aftercooled Engine
Serial No. 38S12551 To 38S12570 Inclusive
2W5746-Page 52A.05
c309983 SEBP1101
4N2623 CYLINDER HEAD GP Parts scheme
  For full view, you need register

Parts for your 3412 ENGINE - MACHINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4N-3714 [12] CHAMBER AS  
2. 2S-2251 [12] SEAL-O-RING  
3. 4N-7253 [12] GASKET-CHAMBER  
4. 5M-6214 [2] PLUG-PIPE  
5. 2W-5746 [2] CYLINDER HEAD GP  
6. 0L-1352 [19] BOLT  
7. 3J-5390 [2] PLUG  
8. 3J-5389 CY [2] PLUG  
9. 1B-5174 [2] PLUG-PIPE  
10. 4S-6137 [24] STUD-TAPERLOCK  
11. 2W-7985 [2] GASKET-CYLINDER HEAD  
12. 2H-3750 [40] BOLT  
  5H-1504 [40] WASHER-HARD  
13. 4N-2269 C [48] SEAL-WATER  
14. 5P-0063 [4] PLUG-CUP  
15. 4N-0932 [2] PLUG-CUP  
16. 1A-5183 [2] BOLT  
17. 5M-2894 [5] WASHER  
18. 5B-2638 [2] BOLT  
19. 6N-6733 [1] SUPPORT-HOUSING-LH  
20. 6N-6734 [1] SUPPORT-HOUSING-RH  
21. 2B-0858 [2] PLUG-PIPE  
22. 9N-2583 [1] BRACKET-FUEL PUMP  
23. 8S-9191 [3] BOLT  
24. 1W-5207 [1] BRACKET-FUEL PUMP  
25. 0S-1591 [2] BOLT  
  C   CHANGE FROM PREVIOUS TYPE
  Y   SEPARATE ILLUSTRATION
 

#SEBP11010133
 

4N-2623: CYLINDER HEAD GP

4N2623 CYLINDER HEAD GROUP
For Precombustion Chambered Turbocharged Aftercooled Engine
Serial No. 38S12571 To 38S12761 Inclusive
7N0847-Page 52A.04
c318971 SEBP1101
4N2623 CYLINDER HEAD GP Parts scheme
  For full view, you need register

Parts for your 3412 ENGINE - MACHINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4N-3714 [12] CHAMBER AS  
2. 2S-2251 [12] SEAL-O-RING  
3. 4N-7253 [12] GASKET-CHAMBER  
4. 5M-6214 [2] PLUG-PIPE  
5. 7N-0847 CY [2] CYLINDER HEAD GP  
6. 0L-1352 [19] BOLT  
7. 3J-5390 [2] PLUG  
8. 3J-5389 [2] PLUG  
9. 1B-5174 [2] PLUG-PIPE  
10. 4S-6137 [24] STUD-TAPERLOCK  
11. 2W-7985 C [2] GASKET-CYLINDER HEAD  
12. 2H-3750 [40] BOLT  
  5H-1504 [40] WASHER-HARD  
13. 4N-2269 [48] SEAL-WATER  
14. 5P-0063 [4] PLUG-CUP  
15. 4N-0932 [2] PLUG-CUP  
16. 1A-5183 [2] BOLT  
17. 5M-2894 [5] WASHER  
18. 5B-2638 [2] BOLT  
19. 6N-6733 [1] SUPPORT-HOUSING-LH  
20. 6N-6734 [1] SUPPORT-HOUSING-RH  
21. 2B-0858 [2] PLUG-PIPE  
22. 9N-2583 [1] BRACKET-FUEL PUMP  
23. 8S-9191 [3] BOLT  
24. 1W-5207 [1] BRACKET-FUEL PUMP  
25. 0S-1591 [2] BOLT  
  C   CHANGE FROM PREVIOUS TYPE
  Y   SEPARATE ILLUSTRATION
 

#SEBP11010134
 

4N-2623: CYLINDER HEAD GP

4N2623 CYLINDER HEAD GROUP
Serial No. 38S12762 To 38S12794 Inclusive
1W5959-Page 52A.06
c327145 SEBP1101
4N2623 CYLINDER HEAD GP Parts scheme
  For full view, you need register

Parts for your 3412 ENGINE - MACHINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4N-3714 [12] CHAMBER AS  
2. 2S-2251 [12] SEAL-O-RING  
3. 4N-7253 [12] GASKET-CHAMBER  
4. 5M-6214 [2] PLUG-PIPE  
5. 1W-5959 CY [2] CYLINDER HEAD GP  
6. 0L-1352 [19] BOLT  
7. 3J-5390 [2] PLUG  
8. 3J-5389 [2] PLUG  
9. 1B-5174 [2] PLUG-PIPE  
10. 6V-5699 C [24] STUD-TAPERLOCK  
11. 2W-7985 [2] GASKET-CYLINDER HEAD  
12. 2H-3750 [40] BOLT  
  5H-1504 [40] WASHER-HARD  
13. 4W-1055 C [48] SEAL-WATER  
14. 5P-0063 [4] PLUG-CUP  
15. 4N-0932 [2] PLUG-CUP  
16. 1A-5183 [2] BOLT  
17. 5M-2894 [5] WASHER  
18. 5B-2638 [2] BOLT  
19. 6N-6733 [1] SUPPORT-HOUSING-LH  
20. 6N-6734 [1] SUPPORT-HOUSING-RH  
21. 2B-0858 [2] PLUG-PIPE  
22. 9N-2583 [1] BRACKET-FUEL PUMP  
23. 8S-9191 [3] BOLT  
24. 1W-5207 [1] BRACKET-FUEL PUMP  
25. 0S-1591 [2] BOLT  
  C   CHANGE FROM PREVIOUS TYPE
  Y   SEPARATE ILLUSTRATION
 

#SEBP11010135
 

4N-2623: CYLINDER HEAD GP

4N2623 CYLINDER HEAD GROUP
Serial No. 38S12795-Up
7N847-Page 52A.04
c330180 SEBP1101
4N2623 CYLINDER HEAD GP Parts scheme
  For full view, you need register

Parts for your 3412 ENGINE - MACHINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4N-3714 [12] CHAMBER AS  
2. 2S-2251 [12] SEAL-O-RING  
3. 4N-7253 [12] GASKET-CHAMBER  
4. 5M-6214 [2] PLUG-PIPE  
5. 7N-0847 CY [2] CYLINDER HEAD GP  
6. 0L-1352 [19] BOLT  
7. 3J-5390 [2] PLUG  
8. 3J-5389 [2] PLUG  
9. 1B-5174 [2] PLUG-PIPE  
10. 6V-5699 [24] STUD-TAPERLOCK  
11. 2W-7985 [2] GASKET-CYLINDER HEAD  
12. 2H-3750 [40] BOLT  
  5H-1504 [40] WASHER-HARD  
13. 4W-1055 [48] SEAL-WATER  
14. 5P-0063 [4] PLUG-CUP  
15. 4N-0932 [2] PLUG-CUP  
16. 1A-5183 [2] BOLT  
17. 5M-2894 [5] WASHER  
18. 5B-2638 [2] BOLT  
19. 6N-6733 [1] SUPPORT-HOUSING-LH  
20. 6N-6734 [1] SUPPORT-HOUSING-RH  
21. 2B-0858 [2] PLUG-PIPE  
22. 9N-2583 [1] BRACKET-FUEL PUMP  
23. 8S-9191 [3] BOLT  
24. 1W-5207 [1] BRACKET-FUEL PUMP  
25. 0S-1591 [2] BOLT  
  C   CHANGE FROM PREVIOUS TYPE
  Y   SEPARATE ILLUSTRATION
 

#SEBP11010136
 

4N-1711: CYLINDER HEAD GP

4N1711 CYLINDER HEAD GROUP
Part of 4N2622 and 4N2623 Cylinder Head Groups shown on Page 50 and 51
c163054 SEBP1101
4N1711 CYLINDER HEAD GP Parts scheme
  For full view, you need register

Parts for your 3412 ENGINE - MACHINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4N-5906 [24] SPRING  
2. 4N-5653 [12] VALVE (exhaust)  
3. 2A-4429 [48] LOCK  
4. 4N-7800 [1] HEAD ASSEM.  
    (Includes)
5. 4N-5893 [12] INSERT (intake)  
  4S-8898 H [12] INSERT .13 mm(.005 in.)oversize  
  4S-8899 H [12] INSERT .26 mm(.010 in.)oversize  
6. 9S-9699 [12] INSERT (exhaust)  
  4S-8902 H [12] INSERT .13 mm(.005 in.)oversize  
  4S-8903 H [12] INSERT .26 mm(.010 in.)oversize  
7. 3B-0623 [12] PLUG  
8. 4N-2803 [24] GUIDE  
9. 2N-5775 [12] DOWEL  
10. 3B-0645 [10] PLUG  
11. 4N-5654 [12] VALVE (intake)  
12. 6N-7175 [24] ROTOCOIL ASSEM.  
    (Each Includes)
13. 6N-7174 C [1] SHIELD  
  C   INDICATES CHANGE
  H   NOT PART OF 4N7800 ASSEMBLY
 

#SEBP11010137
 

6N-9975: CYLINDER HEAD GP

6N9975 CYLINDER HEAD GROUP
Serial No. 38S1 to 38S1124 inclusive
Part of 4N2622 and 4N2623 Cylinder Head Groups shown on Pages 50A, 51 and 51A
c176664 SEBP1101
6N9975 CYLINDER HEAD GP Parts scheme
  For full view, you need register

Parts for your 3412 ENGINE - MACHINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4N-5906 [24] SPRING  
2. 6N-7175 [24] ROTOCOIL ASSEM.  
    (Each Includes)
3. 6N-7174 C [1] SHIELD  
4. 6N-9974 [1] HEAD ASSEM.  
    (Includes)
5. 4N-5893 [12] INSERT (intake)  
  4S-8898 H [12] INSERT .13mm(.005 in.)oversize  
  4S-8899 H [12] INSERT .26mm(.010 in.)oversize  
6. 9S-9699 [12] INSERT (exhaust)  
  4S-8902 H [12] INSERT .13mm(.005 in.)oversize  
  4S-8903 H [12] INSERT .26mm(.010 in.)oversize  
7. 3B-0623 [12] PLUG  
8. 4N-2803 [24] GUIDE  
9. 2N-5775 [12] DOWEL  
10. 3B-0645 [10] PLUG  
11. 4N-5654 [12] VALVE (intake)  
12. 7N-2271 C [12] VALVE (exhaust)  
13. 2A-4429 [48] LOCK  
  C   INDICATES CHANGE
  H   NOT PART OF 6N9974 ASSEM.
 

#SEBP11010138
 

1W-5960: CYLINDER HEAD AS

1W5960 CYLINDER HEAD ASSEMBLY
Serial No. 38S12816-Up
Part Of 7N0848 Clylinder Head
For Field Replacement Order 7N0848-Page 52A.03
c344152 SEBP1101
1W5960 CYLINDER HEAD AS Parts scheme
  For full view, you need register

Parts for your 3412 ENGINE - MACHINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4N-5893 [12] INSERT-INLET (INTAKE)  
2. 1W-5283 C [12] INSERT-VALVE SEAT (EXHAUST)  
3. 3B-0623 [12] PLUG-CUP  
4. 3B-0645 [10] PLUG-CUP  
  C   CHANGE FROM PREVIOUS TYPE
 

#SEBP11010139
 

6N-9975: CYLINDER HEAD GP

6N9975 CYLINDER HEAD GROUP
Serial No. 38S1125-Up
Part of 4N2622 and 4N2623 Cylinder Head Groups shown on Pages 50A, 50B, 51A and 51B
c176665 SEBP1101
6N9975 CYLINDER HEAD GP Parts scheme
  For full view, you need register

Parts for your 3412 ENGINE - MACHINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4N-5906 [24] SPRING  
2. 6N-7175 [24] ROTOCOIL ASSEM.  
    (Each Includes)
3. 6N-7174 C [1] SHIELD  
4. 6N-9974 C [1] HEAD ASSEM.  
    (Includes)
5. 4N-5893 [12] INSERT (intake)  
  4S-8898 H [12] INSERT .13mm(.005 in.)oversize  
  4S-8899 H [12] INSERT .26mm(.010 in.)oversize  
6. 9S-9699 [12] INSERT (exhaust)  
  4S-8902 H [12] INSERT .13mm(.005 in.)oversize  
  4S-8903 H [12] INSERT .26mm(.010 in.)oversize  
7. 3B-0623 [12] PLUG  
8. 4N-2803 [24] GUIDE  
9. 2N-5775 [12] DOWEL  
10. 3B-0645 [10] PLUG  
11. 4N-5654 [12] VALVE (intake)  
12. 7N-4580 C [12] VALVE (exhaust)  
13. 2A-4429 [48] LOCK  
  C   INDICATES CHANGE
  H   NOT PART OF 6N9974 ASSEM.
 

Information:

Engine News
New Tool Makes Glow Plug Wire Removal Easier
1981/05/20
Service Manual Information About Inside Diameters Of Valve Guides
1981/10/21
New Fuel Nozzle Adapter Assembly Used
1982/02/24
Reconditioning Of Bridge Wear Seat Is Permitted; Will Prevent Bridge Replacement When Not Necessary
1982/04/07
Carbon Build-Up In Combustion And Inlet Areas
1982/04/07
Improved Inlet And Exhaust Valves
1982/09/22
Fuel In The Cooling System Or Coolant In The Engine Oil Can Result From Cracked Fuel Nozzle Adapter
1982/10/20
New Head Gasket Improves Seal Between Block And Liner Flange
1982/10/20
Dimensions For Reconditioning Cylinder Blocks, Cylinder Heads
1983/01/19
Use Caution During Replacement Of Damaged Nozzle Adapters Or Precombustion Chambers
1983/01/19
Engine Valve Stem "Use Again" Specifications
1983/03/16
New Fuel Nozzle Adapters Used
1983/05/25
Valve Damage Can Be Caused By Short Intervals Of Engine Operation In Very Cold Temperatures
1983/10/26
New Valve Lifter Assemblies Used In Valve Mechanism Groups
1983/11/30
New Adapter Assemblies And Clamps Used To Hold Fuel Nozzles In Position
1984/03/07
Dimensions For Reconditioning Cylinder Blocks, Cylinder Heads
1984/05/16
Surface Grinding Of Compacted Graphite Iron Cylinder Heads
1984/07/11
New Inlet Valves Used In Cylinder Heads
1984/09/12
New High Alloy Material Is Used In Cylinder Head Assemblies
1984/10/24
A New Book "Analyzing Diesel And Natural Gas Engine Valve Failures" Is Available
1985/03/01
New Cylinder Heads And Fuel Nozzle Adapters Used
1985/07/01
Extra Injection Nozzle Clamp Helps Prevent Injection Nozzle Damage
1985/08/01
Cylinder Head And Valve Rocker Arm Brackets Have Oil Supply Passages In A Different Location To Prevent Possible Oil Leakage Into Cooling System
1985/11/01
Adjust Bridge Whenever Valve Clearance Adjustments Are Made
1986/04/01
Determining The Cause Of Glow Plug Tip Failures
1986/06/01
Valve Lash Adjustment Interval Is Changed
1986/07/01
Change To Interval For Valve Lash Adjustment
1987/02/01
Salvage Of Cylinder Heads By Using Oversized Valve Guides And Valve Inserts
1987/04/01
Silicone Rubber Water Seals Available
1987/07/01
Improved Valve Mechanism Cover Groups
1988/01/01
Seal Retainer And Seals Are Required When A New Cylinder Head Assembly Is Installed
1988/11/01
Improved Head Gasket Used; Service Tips
1990/03/01
Reconditioning Of Bridge Wear Seat Is Permitted; Will Prevent Bridge Replacement When Not Necessary
1990/05/01
Dimensions For Aluminum Washer
1990/08/01
New Exhaust Valves Are Used In Caterpillar Remanufactured Cylinder Heads
1990/10/01
Cylinder Head Gaskets Improved To Provide Better Fire Ring Retention{1124}
1994/02/01
Identification Of Intake And Exhaust Valves That May Be Used In Remanufactured Direct Injected 3400 Cylinder Heads{1105}
1994/04/18
New Intake And Exhaust Valves Used {1105,1100}
1994/06/01
New Rocker Arm Adjustment Screw Used To Adjust Valve Clearance {1123,1100}
1994/06/01
New Valve Lifter Assembly Provides Improved Lubrication Of Lifter Roller And Camshaft Lobes {1209,1210}
1994/06/01
New Inlet And Exhaust Valves Have Thinner Heads{1105}
1995/02/01
Valve Lash Adjustment Intervals{1105}
1995/08/01
New And Reconditioned Valve Projection Specifications{1105}
1995/09/01
Be Sure To Use The Correct Inlet And Exhaust Valves In Engines Equipped With Valve Bridges That Do Not Ride On Dowels{1105,1121}
1998/03/01
Recommended Repairs After Cylinder Head Gasket Failure {1101}
1999/11/01
Improved Exhaust Valve Now Available
1977/03/15
Correct Installation Of Valve Lifters On The Camshaft Is Very Important To Prevent Failures
1977/05/25
5P7333 Tool Group Available For The Repair Of Loose Bridge Dowels On Cylinder Heads
1977/06/29
Clean Bolt Holes In Cylinder Block Before Cylinder Heads Are Installed
1977/07/13
Tolerance Added To Valve Clearance Specifications
1978/01/18
Use Again Specifications For Valve Springs Are Changed
1978/03/01
5P8700 Lifting Brackets Permit Cylinder Head Assembly To Be Removed And Installed
1978/07/05
Remove Fuel Injection Nozzles Before The Bottom Surface Of A Cylinder Head Is Cleaned
1978/08/16
Remanufactured 3412 Crankshafts {1100}
2000/01/01
Caterpillar Warranty Claims on Cylinder Head Valves {1105}
2005/10/03
Clearly Mark all of the Cracks on the Cylinder Head Including Remanufactured Engines with Serial Number Prefixes 1WW, BFF, DLA, BFD, BKY, BLR, ECP, BGE, BKS, BLJ, B1A, BNF and 2MZ {1101, 7754}
2006/04/10
Improved Cylinder Head Assemblies Are Available through Cat Reman for Certain Commercial Engines {1100}
2014/10/10
A New Water Seal Assembly Is Now Used on All 3408, 3412, C27 and C32 Commercial Engines {1100, 7555}
2013/05/13
Special Instruction
Use Of The 5P7333 Tool Group For Bridge Dowel Repair{1101}
Use Of The 5P7333 Tool Group For Bridge Dowel Repair{1101}
Use Of The 1P7451 Valve Guide Honing Group{0673, 1104}
Use Of The 1P7451 Valve Guide Honing Group{0673, 1104}
Installing Heli-Coil Inserts In Caterpillar Cylinder Heads{1117}
Installing Heli-Coil Inserts In Caterpillar Cylinder Heads{1117}
Use Of 6V4805 Valve Seat Insert Puller Group{0703}
Use Of 6V4805 Valve Seat Insert Puller Group{0703}
Installation Of 2W3815 Or 5N93 Inserts{1217}
Installation Of 2W3815 Or 5N93 Inserts{1217}
Repair Of Precombustion Chamber And Direct Injection Adapter Seating Surfaces{1101}
Repair Of Precombustion Chamber And Direct Injection Adapter Seating Surfaces{1101}
Use Of 6V9050 Exhaust Stud Removal Group{1100}
Use Of 6V9050 Exhaust Stud Removal Group{1100}
Determining the Cause of Fuel Dilution of Engine Oil {1101, 1124, 1251, 1280, 1290}
Determining the Cause of Fuel Dilution of Engine Oil {1101, 1124, 1251, 1280, 1290}
Service Letter-NACD
Certain Remanufactured Crankshafts For Use In 3412 Engines Need To Be Removed From Parts Stock
Certain Remanufactured Crankshafts For Use In 3412 Engines Need To Be Removed From Parts Stock
Service Letter-Australia
Service Letter-CFEL
Service Letter-CSARL
Service Letter-Americas
Service Letter-Brazil
Service Letter-Truck/Ag/Marine
Technical Information Bulletin
Exhaust Gas Leakage At Cylinder Head To Manifold Connection
Exhaust Gas Leakage At Cylinder Head To Manifold Connection
Failures of the 4W-5733 Valve Adapter and the 4W-5719 Adapter As on Certain 3408 and 3412 Engines{1100}
Failures of the 4W-5733 Valve Adapter and the 4W-5719 Adapter As on Certain 3408 and 3412 Engines{1100}
Specifications
Fuel Injection Nozzle And Adapter
3408C & 3412C INDUSTRIAL ENGINES
Valves, Valve Springs And Valve Seat Inserts
3408C & 3412C INDUSTRIAL ENGINES
Cylinder Heads
3408C & 3412C INDUSTRIAL ENGINES
Valves, Valve Springs And Valve Seat Inserts
3412 INDUSTRIAL AND MARINE ENGINES
Cylinder Heads
3412 INDUSTRIAL AND MARINE ENGINES
Tool Operating Manual
Operating Instructions for 155-1536 Valve Recession Tool Kit for all G3500 and 3500 Engines{0374, 0599, 0701, 0703, 0759, 0767}
Operating Instructions for 155-1536 Valve Recession Tool Kit for all G3500 and 3500 Engines{0374, 0599, 0701, 0703, 0759, 0767}
Operating Instructions for 148-2997 Valve Recession Tool Group Used On 3600, G3600, and C175 Engines{0374, 0599, 0701, 0703, 0759}
Operating Instructions for 148-2997 Valve Recession Tool Group Used On 3600, G3600, and C175 Engines{0374, 0599, 0701, 0703, 0759}
185-5321 Cylinder Head Lifting Hook Assembly{0599, 0632, 0703, 1101, 6459}
185-5321 Cylinder Head Lifting Hook Assembly{0599, 0632, 0703, 1101, 6459}
188-3922 Broken Exhaust Bolt and Stud Removal Group for 3114, 3116, 3126, 3126B, 3176, 3176B, C-10, and C12 Engines{0374, 0599, 0701, 0702, 0703}
188-3922 Broken Exhaust Bolt and Stud Removal Group for 3114, 3116, 3126, 3126B, 3176, 3176B, C-10, and C12 Engines{0374, 0599, 0701, 0702, 0703}
CRB Valve Spring Testers 8S-2263 and 4C-9496{0374, 0599, 0700, 0701, 1108}
CRB Valve Spring Testers 8S-2263 and 4C-9496{0374, 0599, 0700, 0701, 1108}
{0374, 0599, 0629, 0632, 0700, 0701, 1100, 1101}
{0374, 0599, 0629, 0632, 0700, 0701, 1100, 1101}
M0088789: 550-9152 Gage Ring Assembly {0374, 0599, 0700, 0701, 0759, 1100, 1105}
M0088789: 550-9152 Gage Ring Assembly {0374, 0599, 0700, 0701, 0759, 1100, 1105}
Service Letter-China
Certain Remanufactured Crankshafts For Use In 3412 Engines Need To Be Removed From Parts Stock
Certain Remanufactured Crankshafts For Use In 3412 Engines Need To Be Removed From Parts Stock
Service Letter-Asia
Reuse And Salvage Guidelines
Engine Valve Failure Modes{1100, 1105}
Engine Valve Failure Modes{1100, 1105}
Reuse and Salvage for Cylinder Head Assemblies {1100, 1101, 1103, 1104, 1105, 1106, 1108, 1109, 1115, 1117, 1121, 1124, 1125}
Reuse and Salvage for Cylinder Head Assemblies {1100, 1101, 1103, 1104, 1105, 1106, 1108, 1109, 1115, 1117, 1121, 1124, 1125}
Reuse & Salvage for Valvetrain Components {1102, 1108, 1109, 1121, 1123}
Reuse & Salvage for Valvetrain Components {1102, 1108, 1109, 1121, 1123}
Using the 9U-5383 Vacuum Tester {0774, 0781, 1000, 1100}
Using the 9U-5383 Vacuum Tester {0774, 0781, 1000, 1100}
Applied Failure Analysis
Engine Valve Failure Modes{1100, 1105}
Engine Valve Failure Modes{1100, 1105}
Information Release Memo
PRODUCT LINE ADDITIONS: REMANUFACTURED SHORT AND LONG BLOCKS FOR VARIOUS APPLICATIONS
PRODUCT LINE ADDITIONS: REMANUFACTURED SHORT AND LONG BLOCKS FOR VARIOUS APPLICATIONS
APPEARANCE CHANGE ON REMAN SHORT BLOCKS
APPEARANCE CHANGE ON REMAN SHORT BLOCKS
CAT REMAN ANNOUNCES ADDITIONAL CYLINDER HEAD RELEASES FOR MINING AND OTHER APPLICATIONS
CAT REMAN ANNOUNCES ADDITIONAL CYLINDER HEAD RELEASES FOR MINING AND OTHER APPLICATIONS
Service Letter-APD
Certain Remanufactured Crankshafts For Use In 3412 Engines Need To Be Removed From Parts Stock
Certain Remanufactured Crankshafts For Use In 3412 Engines Need To Be Removed From Parts Stock
Disassembly and Assembly
Cylinder Head
3408C & 3412C INDUSTRIAL ENGINES
Valves
3408C & 3412C INDUSTRIAL ENGINES
Valve Guides
3408C & 3412C INDUSTRIAL ENGINES
Bridge Dowels
3408C & 3412C INDUSTRIAL ENGINES
Valve Seat Inserts
3408C & 3412C INDUSTRIAL ENGINES
Fuel Injection Nozzles & Adapters
3408C & 3412C INDUSTRIAL ENGINES
Glow Plugs (Precombustion Chambers)
3412 INDUSTRIAL & MARINE ENGINES
Fuel Injection Nozzles & Adapters (Later 7000 Series)
3412 INDUSTRIAL & MARINE ENGINES
Precombustion Chambers
3412 INDUSTRIAL & MARINE ENGINES
Direct Injection Adapters
3412 INDUSTRIAL & MARINE ENGINES
Cylinder Head Assemblies
3412 INDUSTRIAL & MARINE ENGINES
Valves
3412 INDUSTRIAL & MARINE ENGINES
Valve Seat Inserts
3412 INDUSTRIAL & MARINE ENGINES
Bridge Dowels
3412 INDUSTRIAL & MARINE ENGINES
Service Magazine
Use The Correct Water Temperature Contactor{1350,1100}
1980/02/11
Service Manual Information About Inside Diameters Of Valve Guides{1104,0374}
1981/10/05
New Fuel Nozzle Adapter Assembly Used{1106}
1982/02/15
Reconditioning of Bridge Wear Seat Is Permitted; Will Prevent Bridge Replacement When Not Necessary{1100}
1982/03/08
Carbon Build-Up In Combustion And Inlet Areas{1058,1101,1105,1214,1104}
1982/03/22
Vacuum Tester Checks For Leaks Between Valve Face and Seat{0651,1103,1105}
1982/09/06
Improved Inlet And Exhaust Valves{1105}
1982/09/06
New Instruction Card Available For 6V87 Valve Stem Gauge{0653}
1982/09/06
New Head Gasket Improves Seal Between Block And Liner Flange{1101,1201}
1982/09/27
Fuel In The Cooling System Or Coolant In The Engine Oil Can Result From Cracked Fuel Nozzle Adapter{1106}
1982/10/18
New 6V7059 Micrometer Measures Liner Top Flange And Valve Lip {0653,1216,1105}
1982/11/29
Dimensions For Reconditioning Cylinder Blocks, Cylinder Heads{1201,1101,1103,1105}
1982/12/20
Engine Valve Stem "Use Again" Specifications{0653,1105}
1983/02/28
New Fuel Nozzle Adapters Used{1106}
1983/05/09
New Liner Seat Insert Available{1217}
1983/08/15
Valve Damage Can Be Caused By Short Intervals Of Engine Operation In Very Cold Temperatures{1105,1208}
1983/10/17
New Adapter Assemblies And Clamps Used To Hold Fuel Nozzles In Position{1106,1252}
1984/02/27
Dimensions For Reconditioning Cylinder Blocks, Cylinder Heads{1201,1101,1103,1105}
1984/04/23
Surface Grinding Of Compacted Graphite Iron Cylinder Heads{1101}
1984/07/02
New Inlet Valve Used{1105}
1984/09/03
New High Alloy Material Is Used In Cylinder Head Assemblies{1101}
1984/10/15
Valve Lash Adjustment Not A Warranty Item {1102,1105}
1985/01/14
New Cylinder Heads And Fuel Nozzle Adapters Used{1101,1106}
1985/07/01
Use Care When Handling Water Seals For Cylinder Head Spacer Plates{1115}
1985/07/15
Changes To Fuel Systems {1250,1251,1252,1253,1254,1100}
1985/09/16
Cylinder Head And Valve Rocker Arm Brackets Have Oil Supply Passages In A Different Location To Prevent Possible Oil Leakage Into Cooling System {1100,1102,1350}
1985/10/21
Adjust Bridge Whenever Valve Clearance Adjustments Are Made{1121,1105,1100}
1986/04/07
Determining The Cause Of Glow Plug Tip Failures{1053,1105,1412}
1986/06/02
Valve Lash Adjustment Interval Is Changed {1105}
1986/07/07
Indications Of Engine Overspeeding When Only One Cam Lobe/Lifter Has Failed{1000,1100,1200}
1986/09/08
Avoid Oil Contact With New Water Passage Seals Used In Cylinder Head Groups{1100}
1986/12/15
New Water Temperature Regulator Has A Closer Fit At The Valve Seat To Keep Leakage At A Minimum{1355}
1977/01/17
Improved Exhaust Valve Now Available{1105}
1977/02/28
Correct Installation Of Valve Lifters On The Camshaft Is Very Important To Prevent Failures{1209}
1977/05/16
5P7333 Tool Group Available For The Repair Of Loose Bridge Dowels On Cylinder Heads{0663,1101}
1977/06/20
Clean Bolt Holes In Cylinder Block Before Cylinder Heads Are Installed{1101,1201}
1977/08/08
Tools Now Available To Ream And/Or Hone 0.500" (12.70 mm) Diameter Valve Guides{0663}
1977/08/22
Salvage Of Cylinder Heads By Using Oversized Valve Guides And Valve Inserts {1104,1103}
1987/03/30
Silicone Rubber Water Seals Available{1100}
1987/07/06
Tolerance Added To Valve Clearance Specifications{1105,0374}
1978/01/16
Valve Damage Can Be Caused By Short Intervals Of Engine Operation In Very Cold Temperatures{1105,1208}
1978/01/30
Use Again Specifications For Valve Springs Are Changed{1108}
1978/03/06
New Lifting Eye Group Used On 3412 Industrial Engines Equipped With Turbochargers{1101,1000}
1978/04/10
5P8700 Lifting Brackets Permit Cylinder Head Assembly To Be Removed And Installed{0644,1100}
1978/06/19
Remove Fuel Injection Nozzles Before The Bottom Surface Of A Cylinder Head Is Cleaned{1254,1101}
1978/08/07
Head Bolt Holes In Cylinder Blocks Can Be Repaired{1201,1101}
1988/10/24
A New Method To Clean And Polish Engine Valve Stems{0674,1105}
1979/05/28
Why Engines Are Damaged By Fuel Sulfur{1104,1216,1280,1318,1215}
1979/08/27
Fuel Sulfur-Your Diesel's Silent Enemy{0375,1280}
1979/12/17
Improved Head Gasket Used; Service Tips {1124,1216,1221,7568}
1990/02/26
Reconditioning Of Bridge Wear Seat Is Permitted; Will Prevent Bridge Replacement When Not Necessary{1121}
1990/04/30
New Exhaust Valves Are Used In Caterpillar Remanufactured Cylinder Heads{1105,1101}
1990/10/08
Cylinder Head Gaskets Improved To Provide Better Fire Ring Retention{1124}
1994/02/07
Identification Of Intake And Exhaust Valves That May Be Used In Remanufactured Direct Injected 3400 Cylinder Heads{1105}
1994/04/04
New Cylinder Head Gasket, Spacer Plate And Head Bolts Used; New Cylinder Liner Projection Measurement Method; New Cylinder Head Torque Sequence; Improved Coolant Flow (Cylinder Heads) {1124,1221,1216,1101}
1994/07/04
Remanufactured 3400 Cylinder Heads Now Use Intake And Exhaust Valves With Chrome Plated Valve Stems{1105}
1994/09/05
New Water Seals Used In Cylinder Head Assemblies{1124}
1994/09/05
Caterpillar Warranty Claims on Cylinder Head Valves {1105}
2005/10/03
A New Water Seal Assembly Is Now Used on All 3408 and 3412 Engines {1100, 7555}
2013/08/06

Caterpillar Parts SIS Catalog 3412 :

CYLINDER HEAD GP
4N-2623 CYLINDER HEAD GP
CYLINDER HEAD GP
4N-2623 CYLINDER HEAD GP
CYLINDER HEAD GP
1W-5958 CYLINDER HEAD GP
CYLINDER HEAD GP
1W-5958 CYLINDER HEAD GP
CYLINDER HEAD GP
4W-7007 CYLINDER HEAD GP
CYLINDER HEAD GP
4W-7007 CYLINDER HEAD GP
CYLINDER HEAD GP
4N-2622 CYLINDER HEAD GP
CYLINDER HEAD GP
4N-2622 CYLINDER HEAD GP
CYLINDER HEAD GP
4N-2623 CYLINDER HEAD GP
CYLINDER HEAD GP
4N-2623 CYLINDER HEAD GP
CYLINDER HEAD GP
4N-2623 CYLINDER HEAD GP
CYLINDER HEAD GP
4N-2623 CYLINDER HEAD GP
CYLINDER HEAD GP
4N-2623 CYLINDER HEAD GP
CYLINDER HEAD GP
4N-1711 CYLINDER HEAD GP
CYLINDER HEAD GP
6N-9975 CYLINDER HEAD GP
CYLINDER HEAD AS
1W-5960 CYLINDER HEAD AS

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