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6N4991 CAMSHAFT ASSEMBLY Part of 6N4992 Camshaft Group 3406 INDUSTRIAL ENGINE


BASIC ENGINE
CAMSHAFT GP
CYLINDER HEAD GP

INDUSTRIAL ENGINE 3406 INDUSTRIAL ENGINE 90U
 3406 INDUSTRIAL ENGINE 90U00440-19730 SEBP1013 3406 90U   (1973)

BASIC ENGINE

CAMSHAFT GP
CAMSHAFT GP-SINGLE
6N-4992 CAMSHAFT GP-SINGLE
CAMSHAFT AS
6N-4991 CAMSHAFT AS
CAMSHAFT GROUP
6N-1406 CAMSHAFT GROUP
CAMSHAFT ASSEMBLY
6N-1405 CAMSHAFT ASSEMBLY
 

#SEBP10130090
 

6N-4991: CAMSHAFT AS

6N4991 CAMSHAFT ASSEMBLY
Part of 6N4992 Camshaft Group
c228211 SEBP1013
6N4991 CAMSHAFT AS Parts scheme
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Parts for your 3406 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 7N-6682 C [1] GEAR (64 teeth)  
2. 1B-8705 [1] KEY  
  C   INDICATES CHANGE
 

#SEBP10130091
 

6N-1406: CAMSHAFT GROUP

6N1406 CAMSHAFT GROUP
c152537 SEBP1013
6N1406 CAMSHAFT GROUP Parts scheme
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Parts for your 3406 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 0S-0509 [2] BOLT  
2. 4N-0342 [1] PLATE  
3. 6N-1405 Y [1] CAMSHAFT ASSEM.  
    (Separate Illustration)
  Y   SEPARATE ILLUSTRATION
 

#SEBP10130092
 

6N-1405: CAMSHAFT ASSEMBLY

6N1405 CAMSHAFT ASSEMBLY
Part of 6N1406 Camshaft Group
c152538 SEBP1013
6N1405 CAMSHAFT ASSEMBLY Parts scheme
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Parts for your 3406 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4N-0355 [1] GEAR (64 teeth)  
2. 1B-8705 [1] KEY  
 

#SEBP10130093
 

4N-2260: CYLINDER HEAD GP

4N2260 CYLINDER HEAD GROUP
Serial No. 90U440 to 90U1657 inclusive
For Precombustion Chambered Engines
4N749 Head parts are shown on Page 40. Refer also to Page 41B for special parts
c205466 SEBP1013
4N2260 CYLINDER HEAD GP Parts scheme
  For full view, you need register

Parts for your 3406 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4N-7253 [6] GASKET  
2. 2S-2251 [6] SEAL  
3. 4N-3714 [6] CHAMBER ASSEM.  
4. 5F-4899 C [12] BOLT  
5. Y [1] CYLINDER HEAD  
    (Separate Illustration)
6. 6L-7442 [6] STUD  
7. 3J-5390 [4] PLUG  
8. 3J-5389 C [2] PLUG  
9. 4N-1044 [1] GASKET  
10. 7L-0520 C [12] STUD  
11. 2H-3750 [20] BOLT  
  5H-1504 [20] WASHER  
12. 4N-2269 [24] SEAL  
13. 3J-5389 C [1] PLUG  
    (Use Without Air Compressor)
  C   INDICATES CHANGE
  Y   SEPARATE ILLUSTRATION
 

#SEBP10130094
 

4N-2260: CYLINDER HEAD GP

4N2260 CYLINDER HEAD GROUP
Serial No. 90U1658 to 90U1878 inclusive
For Precombustion Chambered Engines
4N749 Head parts are shown on Page 40. Refer also to Page 41B for special parts
c158808 SEBP1013
4N2260 CYLINDER HEAD GP Parts scheme
  For full view, you need register

Parts for your 3406 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4N-7253 [6] GASKET  
2. 2S-2251 [6] SEAL  
3. 4N-3714 [6] CHAMBER ASSEM.  
4. 5F-4899 [12] BOLT  
5. 4N-0749 CY [1] CYLINDER HEAD  
    (Separate Illustration)
6. 6L-7442 [6] STUD  
7. 3J-5390 [4] PLUG  
8. 3J-5389 [2] PLUG  
9. 4N-1044 [1] GASKET  
10. 4S-6137 C [11] STUD 8.13 cm(3.20 in.) long  
11. 2H-3750 [20] BOLT  
  5H-1504 [20] WASHER  
12. 4N-2269 [24] SEAL  
13. 3J-5389 [1] PLUG  
    (Use Without Air Compressor)
14. 7L-0520 C [1] STUD 5.08 cm(2 in.) long  
  C   INDICATES CHANGE
  Y   SEPARATE ILLUSTRATION
 

#SEBP10130095
 

4N-2260: CYLINDER HEAD GP

4N2260 CYLINDER HEAD GROUP
Serial No. 90U1879 to 90U2158 inclusive
For Precombustion Chambered Engines
6N9943 Head parts are shown on Page 40A. Refer also to Page 41B for special parts
c161294 SEBP1013
4N2260 CYLINDER HEAD GP Parts scheme
  For full view, you need register

Parts for your 3406 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4N-7253 [6] GASKET  
2. 2S-2251 [6] SEAL  
3. 4N-3714 [6] CHAMBER ASSEM.  
4. 5F-4899 [12] BOLT  
5. 6N-9943 CY [1] CYLINDER HEAD  
    (Separate Illustration)
6. 6L-7442 [6] STUD  
7. 3J-5390 [4] PLUG  
8. 3J-5389 [2] PLUG  
9. 4N-1044 [1] GASKET  
10. 4S-6137 [11] STUD 8.13 cm(3.20 in.) long  
11. 2H-3750 [20] BOLT  
  5H-1504 [20] WASHER  
12. 4N-2269 [24] SEAL  
13. 3J-5389 [1] PLUG  
    (Use Without Air Compressor)
14. 7L-0520 [1] STUD 5.08 cm(2 in.) long  
  C   INDICATES CHANGE
  Y   SEPARATE ILLUSTRATION
 

#SEBP10130096
 

4N-2260: CYLINDER HEAD GP

4N2260 CYLINDER HEAD GROUP
Serial No. 90U2159-Up
For Precombustion Chambered Engines
7N1302 Head parts are shown on Pages 40B & 40C
c162994 SEBP1013
4N2260 CYLINDER HEAD GP Parts scheme
  For full view, you need register

Parts for your 3406 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4N-7253 [6] GASKET  
2. 2S-2251 [6] SEAL  
3. 4N-3714 [6] CHAMBER ASSEM.  
4. 5F-4899 [12] BOLT  
5. 7N-1302 CY [1] CYLINDER HEAD  
    (Separate Illustration)
6. 6L-7442 [6] STUD  
7. 3J-5390 [4] PLUG  
8. 3J-5389 [2] PLUG  
9. 7N-0626 C [1] GASKET  
10. 4S-6137 [11] STUD 8.13 cm(3.20 in.)long  
11. 2H-3750 [20] BOLT  
  5H-1504 [20] WASHER  
12. 4N-2269 [24] SEAL  
13. 3J-5389 [1] PLUG  
    (Use without Air Compressor)
14. 7L-0520 [1] STUD 5.08 cm(2 in.) long  
15. 3S-5496 C [2] SEAL  
  C   INDICATES CHANGE
  Y   SEPARATE ILLUSTRATION
 

#SEBP10130097
 

4N-2270: CYLINDER HEAD GP

4N2270 CYLINDER HEAD GROUP
Serial No. 90U440 to 90U1657 inclusive
For Direct Injection Engines
4N749 Head parts are shown on Page 40. Refer also to Page 41B for special parts
c205470 SEBP1013
4N2270 CYLINDER HEAD GP Parts scheme
  For full view, you need register

Parts for your 3406 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4N-7253 [6] GASKET  
2. 2S-2251 [6] SEAL  
3. 4N-7568 [6] ADAPTER ASSEM.  
4. 5F-4899 C [12] BOLT  
5. Y [1] HEAD GROUP  
    (Separate Illustration)
6. 6L-7442 [6] STUD  
7. 3J-5390 [4] PLUG  
8. 3J-5389 C [2] PLUG  
9. 4N-1044 [1] GASKET  
10. 7L-0520 C [12] STUD  
11. 2H-3750 [20] BOLT  
  5H-1504 [20] WASHER  
12. 4N-2269 [24] SEAL  
13. 3J-5389 C [1] PLUG  
    (For Use Without Air Compressor)
  C   INDICATES CHANGE
  Y   SEPARATE ILLUSTRATION
 

#SEBP10130098
 

4N-2270: CYLINDER HEAD GP

4N2270 CYLINDER HEAD GROUP
Serial No. 90U1658 to 90U1876 inclusive
For Direct Injection Engines
4N749 Head parts are shown on Page 40. Refer also to Page 41B for special parts
c158807 SEBP1013
4N2270 CYLINDER HEAD GP Parts scheme
  For full view, you need register

Parts for your 3406 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4N-7253 [6] GASKET  
2. 2S-2251 [6] SEAL  
3. 4N-7568 [6] ADAPTER ASSEM.  
4. 5F-4899 [12] BOLT  
5. 4N-0749 CY [1] HEAD GROUP  
    (Separate Illustration)
6. 6L-7442 [6] STUD  
7. 3J-5390 [4] PLUG  
8. 3J-5389 [2] PLUG  
9. 4N-1044 [1] GASKET  
10. 4S-6137 C [11] STUD 8.13 cm(3.20 in.)long  
11. 2H-3750 [20] BOLT  
  5H-1504 [20] WASHER  
12. 4N-2269 [24] SEAL  
13. 3J-5389 [1] PLUG  
    (For Use Without Air Compressor)
14. 7L-0520 C [1] STUD 5.08 cm(2 in.) long)  
  C   INDICATES CHANGE
  Y   SEPARATE ILLUSTRATION
 

#SEBP10130099
 

4N-2270: CYLINDER HEAD GP

4N2270 CYLINDER HEAD GROUP
Serial No. 90U1877 to 90U2158 inclusive
For Direct Injection Engines
6N9943 Head parts are shown on Page 40A. Refer also to Page 41B for special parts
c161296 SEBP1013
4N2270 CYLINDER HEAD GP Parts scheme
  For full view, you need register

Parts for your 3406 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4N-7253 [6] GASKET  
2. 2S-2251 [6] SEAL  
3. 4N-7568 [6] ADAPTER ASSEM.  
4. 5F-4899 [12] BOLT  
5. 6N-9943 CY [1] HEAD GROUP  
    (Separate Illustration)
6. 6L-7442 [6] STUD  
7. 3J-5390 [4] PLUG  
8. 3J-5389 [2] PLUG  
9. 4N-1044 [1] GASKET  
10. 4S-6137 [11] STUD 8.13 cm(3.20 in.)long  
11. 2H-3750 [20] BOLT  
  5H-1504 [20] WASHER  
12. 4N-2269 [24] SEAL  
13. 3J-5389 [1] PLUG  
    (For Use Without Air Compressor)
14. 7L-0520 STUD 5.08 cm(2 in.) long  
  C   INDICATES CHANGE
  Y   SEPARATE ILLUSTRATION
 

Information:

Caterpillar Parts SIS Catalog 3406 :

CAMSHAFT GP-SINGLE
6N-4992 CAMSHAFT GP-SINGLE
PISTON & ROD GP
2W-0833 PISTON & ROD GP
PISTON & ROD GP
7N-3516 PISTON & ROD GP
PISTON & ROD GP
7N-3516 PISTON & ROD GP
PISTON & ROD GP
7N-3516 PISTON & ROD GP
CONNECTING ROD AND PISTON GROUP
6N-5006 CONNECTING ROD AND PISTON GROUP
CONNECTING ROD AND PISTON GROUP
4N-0764 CONNECTING ROD AND PISTON GROUP
CONNECTING ROD AND PISTON GROUP
4N-0764 CONNECTING ROD AND PISTON GROUP
CAMSHAFT GROUP
6N-1406 CAMSHAFT GROUP
CAMSHAFT ASSEMBLY
6N-1405 CAMSHAFT ASSEMBLY
CYLINDER HEAD GP
4N-2260 CYLINDER HEAD GP
CYLINDER HEAD GP
4N-2260 CYLINDER HEAD GP
CYLINDER HEAD GP
4N-2260 CYLINDER HEAD GP
CYLINDER HEAD GP
4N-2260 CYLINDER HEAD GP
CYLINDER HEAD GP
4N-2270 CYLINDER HEAD GP
CYLINDER HEAD GP
4N-2270 CYLINDER HEAD GP

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