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9N5447 AIR COMPRESSOR GROUP Part of 9N5453 Air Compressor Group shown on Page 94A 9N5449 Block parts are shown on Page 96B 3406




BASIC ENGINE

AIR COMPRESSOR GP
 

#SEBP12100180
 

9N-5447: AIR COMPRESSOR GROUP

9N5447 AIR COMPRESSOR GROUP
Part of 9N5453 Air Compressor Group shown on Page 94A
9N5449 Block parts are shown on Page 96B
c224913 SEBP1210
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Parts for your 3406 TRUCK ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 7H-3171 [1] PLUG  
2. 3J-5390 [4] PLUG  
3. 8L-5922 [2] BOLT  
4. 3B-4505 [8] LOCKWASHER  
5. 9M-0379 [10] BOLT  
6. 3J-5389 [2] PLUG  
7. 9N-5450 [1] HEAD ASSEM.  
8. 2H-3755 [2] BOLT  
9. 2A-0954 [1] COVER  
  1S-7107 [1] GASKET  
10. 9M-0385 [1] PLATE (strainer)  
  6L-1884 [2] GASKET  
11. 9L-2276 [2] GUIDE  
  9L-2277 [2] VALVE  
12. 9L-2278 [2] SPRING  
13. 9N-2855 [1] GASKET  
14. 9N-5449 Y [1] BLOCK ASSEM.  
    (Separate Illustration)
15. 9N-2854 [1] GASKET  
16. 2S-4013 [1] COVER ASSEM.  
    (Includes)
  2S-4245 [1] BEARING  
17. 5M-6214 [1] PLUG  
18. 9L-1517 [1] WASHER  
19. 0S-1617 [4] BOLT  
20. 2H-3931 [1] SEAL  
21. 9N-5448 [ 1] CRANKCASE ASSEM.  
    (Includes)
22. 1S-9867 [1] BEARING  
23. 0S-1594 [6] BOLT  
  3B-4506 [6] LOCKWASHER  
24. 9L-3690 [1] AIR CLEANER ASSEM.  
    (Includes)
  9L-2169 [1] ELEMENT ASSEM.  
25. 9L-1518 [1] WASHER  
26. 0S-1615 [6] BOLT  
  3B-4504 [6] LOCKWASHER  
27. 4N-4518 [1] COVER  
  3H-5175 [1] GASKET  
  Y   SEPARATE ILLUSTRATION
 

#SEBP12100181
 

9N-5449: COMPRESSOR CYLINDER BLOCK ASSEMBLY

9N5449 COMPRESSOR CYLINDER BLOCK ASSEMBLY
Part of 9N5447 Air Compressor Group shown on Page 96A
c224914 SEBP1210
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Parts for your 3406 TRUCK ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 9L-2269 [2] PISTON AS (UNLOADER)  
    (EACH INCLUDES)
  4M-6412 [1] RING  
  3L-6768 [1] SEAL-O-RING  
2. 9L-2271 [2] GUIDE-PLUNGER  
3. 9L-2270 [2] PLUNGER-UNLOADER  
4. 4M-6410 [1] SEAT  
5. 9L-2273 [1] SPRING-UNLOADER  
6. 9L-2272 [1] SADDLE-SPRING  
 

#SEBP12100182
 

9N-2853: COMPRESSOR CYLINDER BLOCK ASSEMBLY

9N2853 COMPRESSOR CYLINDER BLOCK ASSEMBLY
Replaced by 9N5449 shown on Page 96B
Part of 9N2653 Air Compressor Group shown on Page 96
c163523 SEBP1210
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Parts for your 3406 TRUCK ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 9L-2269 [2] PISTON ASSEM. (unloader)  
    (Each Includes)
  4M-6412 [1] RING  
  3L-6768 [1] SEAL  
2. 9L-2271 [2] GUIDE  
3. 9L-2270 [2] PLUNGER  
4. 4M-6410 [1] SEAT  
5. 9L-2273 [1] SPRING  
6. 9L-2272 [1] SADDLE  
 

#SEBP12100183
 

9N-0013: LINES GP-TURBOCHARGER OIL

9N13 TURBOCHARGER OIL LINES GROUP
c228041 SEBP1210
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Parts for your 3406 TRUCK ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 1S-6595 [1] GASKET  
2. 0S-1571 [2] BOLT  
3. 0S-1594 [2] BOLT  
4. 1S-4810 [1] GASKET  
5. 9N-0696 [1] TUBE ASSEM.  
6. 9N-3258 C [1] TUBE ASSEM.  
7. 9M-4584 C [1] CONNECTOR  
8. 9H-6067 C [1] SEAL  
9. 9N-0694 [1] ELBOW  
10. 0L-2070 [2] BOLT  
11. 4N-0699 [1] GASKET  
12. 5M-2894 [2] WASHER  
13. 2M-9780 C [1] SEAL  
  C   INDICATES CHANGE
 

#SEBP12100184
 

9N-2701: TURBOCHARGER GP

9N2701 TURBOCHARGER GROUP
c217663 SEBP1210
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Parts for your 3406 TRUCK ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 9N-2703 RY [1] TURBOCHARGER GROUP  
    (Separate Illustration)
2. 1S-4295 [1] GASKET  
3. 2N-2765 [4] BOLT  
  2N-2766 [4] NUT  
  R   REMFG PART MAY BE AVAILABLE
  Y   SEPARATE ILLUSTRATION
 

#SEBP12100185
 

9N-2703: TURBOCHARGER GP

9N2703 TURBOCHARGER GROUP
Part of 9N2701 Turbocharger Group
9N3676 Cartridge parts are shown on Page 99
c216284 SEBP1210
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Parts for your 3406 TRUCK ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 9N-3675 [1] HOUSING-COMPRESSOR  
2. 9N-3676 YR [1] CARTRIDGE GP-TURBOCHARGER  
3. 9N-2044 [1] NAMEPLATE  
  2F-0808 [2] SCREW  
4. 9N-2639 R [1] HOUSING-TURBINE  
5. 9N-2038 [1] CLAMP AS  
  7M-9918 [1] NUT-SELF LOCKING  
6. 9N-2039 [1] CLAMP AS  
  7M-9918 [1] NUT-SELF LOCKING  
  R   REMFG PART MAY BE AVAILABLE
  Y   SEPARATE ILLUSTRATION
 

#SEBP12100186
 

9N-5265: TURBOCHARGER GROUP

9N5264 TURBOCHARGER GROUP
9N5264 Turbocharger parts are shown on Page 98A
c222426 SEBP1210
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Parts for your 3406 TRUCK ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 9N-5264 RY [1] TURBOCHARGER GP  
2. 2N-2765 [4] BOLT-HIGH TEMP  
  2N-2766 [4] LOCKNUT  
3. 1S-4295 [1] GASKET-TURBOCHARGER  
  R   REMFG PART MAY BE AVAILABLE
  Y   SEPARATE ILLUSTRATION
 

#SEBP12100187
 

9N-5264: TURBOCHARGER GROUP

9N5264 TURBOCHARGER GROUP
Part of 9N5265 Turbocharger Group shown on Page 98A
9N5263 Cartridge parts are shown on Page 98B
c222427 SEBP1210
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Parts for your 3406 TRUCK ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 9N-3675 [1] HOUSING-COMPRESSOR  
2. 9N-5263 RY [1] CARTRIDGE GP-TURBOCHARGER  
3. 9N-2044 [1] NAMEPLATE  
  2F-0808 [2] SCREW  
4. 9N-2032 R [1] HOUSING-TURBINE  
5. 9N-2038 [1] CLAMP AS  
  7M-9918 [1] NUT-SELF LOCKING  
6. 9N-2039 [1] CLAMP AS  
  7M-9918 [1] NUT-SELF LOCKING  
  R   REMFG PART MAY BE AVAILABLE
  Y   SEPARATE ILLUSTRATION
 

#SEBP12100188
 

9N-5263: CARTRIDGE GROUP

9N5263 CARTRIDGE GROUP
Part of 9N5264 Turbocharger Group shown on Page 98A
c222428 SEBP1210
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Parts for your 3406 TRUCK ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 6N-7962 R [1] BACKPLATE ASSEM.  
2. 1P-1120 [1] RING  
3. 6N-5004 [1] BEARING  
4. 7N-3759 [1] RING  
5. 9N-3701 [1] SHROUD  
6. 9N-2043 R [1] SHAFT AND WHEEL ASSEM.  
7. 9M-8915 [3] RING  
8. 9N-2035 R [1] HOUSING ASSEM.  
    (Includes)
  4M-6646 [2] PIN  
9. 9M-8911 [1] COLLAR  
10. 9N-2046 [1] SPACER  
  9M-8919 [2] RING  
11. 1S-1770 [1] NUT  
12. 9N-3674 [1] WHEEL  
13. 0S-1616 [4] BOLT  
  9N-2036 [4] PLATE  
  9N-2047 F [1] PLATE (name)  
  2F-0808 F [2] SCREW  
    THE FOLLOWING REPAIR KIT IS AVAILABLE
  9N-2041 [1] KIT (bearing)  
  F   NOT SHOWN
  R   REMFG PART MAY BE AVAILABLE
 

#SEBP12100189
 

9N-3676: CARTRIDGE GP-TURBOCHARGER

9N3676 CARTRIDGE GROUP
Part of 9N2703 Turbocharger Group shown on Page 98
c228049 SEBP1210
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Parts for your 3406 TRUCK ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 6N-7962 R [1] BACKPLATE AS  
2. 1P-1120 [1] RING-SEAL  
3. 6N-5004 [1] BEARING-THRUST  
4. 7N-3759 [1] RING-PISTON  
5. 9N-3701 [1] SHROUD-TURBINE WHEEL  
6. 6N-4606 R [1] SHAFT & WHEEL AS  
7. 9M-8915 [3] RING-RETAINING  
8. 9N-2035 R [1] HOUSING AS-CENTER  
  4M-6646 [2] PIN-GROOVE  
9. 9M-8911 [1] COLLAR-THRUST  
10. 9N-2046 [1] SPACER-THRUST  
  9M-8919 [2] RING-SEAL  
11. 1S-1770 [1] LOCKNUT-TURBOCHARGER  
12. 9N-3674 [1] WHEEL-COMPRESSOR  
13. 0S-1616 [4] BOLT  
  9N-2036 [4] PLATE-LOCK  
   
    THE FOLLOWING REPAIR
    KIT IS AVAILABLE:
  9N-2041 [1] KIT-BEARING  
  R   REMFG PART MAY BE AVAILABLE
 

Information:

General Service Information
Tu-Flo 300 Compressor
AIR COMPRESSORS TU-FLO 300, 400, 500, 501, 600, 700 & 1000 C
Tu-Flo 400, 500, 1000 Compressors
AIR COMPRESSORS TU-FLO 300, 400, 500, 501, 600, 700 & 1000 C
Tu-Flo 501 Compressor
AIR COMPRESSORS TU-FLO 300, 400, 500, 501, 600, 700 & 1000 C
Tu-Flo 600 Compressor
AIR COMPRESSORS TU-FLO 300, 400, 500, 501, 600, 700 & 1000 C
Tu-Flo 700 Compressor
AIR COMPRESSORS TU-FLO 300, 400, 500, 501, 600, 700 & 1000 C
Truck Engine News
Engine News
Special Instruction
Air Compressor Installation Instructions{1803}
Air Compressor Installation Instructions{1803}
Troubleshooting Compressed Air System Components and Performance{1803, 5500}
Troubleshooting Compressed Air System Components and Performance{1803, 5500}
Specifications
Air Compressor Drive
3406 DIESEL TRUCK ENGINE
Disassembly and Assembly
Air Compressor Governor
3406 DIESEL TRUCK ENGINE
Air Compressor
3406 DIESEL TRUCK ENGINE
Service Magazine

Caterpillar Parts SIS Catalog 3406 :

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