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4N4079 FUEL FILTER LINES GROUP Serial No. 90U1 to 90U388 inclusive Part of 4N2238 Basic Engine Arrangement listed on Pages 15 and 15B. Only separate parts serviced 3406




FUEL SYSTEM

FILTER GP-FUEL
 

#UEG0728S0290
 

4N-4079: FUEL FILTER LINES GROUP

4N4079 FUEL FILTER LINES GROUP
Serial No. 90U1 to 90U388 inclusive
Part of 4N2238 Basic Engine Arrangement listed on Pages 15 and 15B. Only separate parts serviced
c148278 UEG0728S
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Parts for your 3406 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. C [1] TUBE ASSEM.  
2. 9S-1350 C [2] CLIP  
3. 032-1268 [2] ELBOW  
4. 2M-4779 C [2] STUD  
5. 1D-4717 C [3] NUT  
6. 5M-2894 C [8] WASHER  
7. 030-8194 [1] CONNECTOR  
  2M-9780 [1] SEAL  
8. C [1] TUBE ASSEM.  
9. 1A-2029 C [4] BOLT  
10. 2M-7077 [1] SPACER  
11. 030-7936 C [1] CONNECTOR  
12. 3J-1907 [3] SEAL  
13. 9M-4594 [1] SPACER  
14. 0L-2070 C [1] BOLT  
15. 2B-2695 C [1] BOLT  
16. 9M-1974 C [3] WASHER  
17. 7M-8322 C [1] CLIP  
18. C [1] TUBE ASSEM.  
19. 030-7947 C [2] ELBOW  
20. 6N-0518 C [1] TUBE ASSEM.  
21. 6N-0752 C [1] BLOCK  
22. 6N-0751 C [1] BRACKET  
23. 6K-1972 C [1] ELBOW  
24. 1A-9579 C [2] BOLT  
25. 7B-1597 C [1] CLIP  
  C   INDICATES CHANGE
 

#UEG0728S0291
 

6N-2172: FUEL FILTER LINES GROUP

6N2172 FUEL FILTER LINES GROUP
Serial No. 90U389-Up
Part of 4N2238 Basic Engine Arrangement listed on Page 15B. Only separate parts serviced
c157411 UEG0728S
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Parts for your 3406 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 9S-4182 [1] PLUG  
  3J-7354 [1] SEAL  
2. 9S-4191 [1] PLUG  
3. 3J-1907 [8] SEAL  
4. 1J-8668 [2] STUD  
5. 1D-4717 [5] NUT  
6. 5M-2894 [14] WASHER  
7. 6K-9194 [2] ELBOW  
8. 2R-6806 [3] CONNECTOR  
9. 6K-3607 [1] CONNECTOR  
  2M-9780 [1] SEAL  
10. 5P-4588 [1] ADAPTER  
11. 9N-1851 [1] BRACKET  
  6N-4394 H [1] SHIM GROUP  
12. 0S-1594 [2] BOLT  
13. 2B-2404 [2] CLIP  
14. 6N-4195 [1] BLOCK  
15. 6K-1972 [2] ELBOW  
16. 6N-4214 [1] TUBE ASSEM.  
17. 7B-9919 [2] CLIP  
18. 0L-1351 [3] BOLT  
19. 6N-4216 [1] TUBE ASSEM.  
20. 5P-4592 [1] ELBOW  
21. 6N-4215 [1] TUBE ASSEM.  
22. 9L-6492 [1] DAMPER  
23. 5P-4375 [1] TEE  
24. 7B-1597 [1] CLIP  
25. 0L-2070 [1] BOLT  
26. 9M-4594 [1] SPACER  
27. 030-7947 [2] ELBOW  
28. 6N-0518 [1] TUBE ASSEM.  
29. 1A-2029 [3] BOLT  
30. 6N-0751 [1] BRACKET  
31. 6N-0752 [1] BLOCK  
32. 1B-9575 [2] BOLT  
  9M-1974 [2] WASHER  
33. 032-1268 [1] ELBOW  
34. 6N-4217 [1] TUBE ASSEM.  
35. 8B-6127 [2] CLIP  
  H   USE AS REQUIRED (CONSISTS OF 1
 

#UEG0728S0292
 

3N-6668: LINES GP-FLEXIBLE FUEL

3N6668 FLEXIBLE FUEL OIL LINES GROUP--Type 1
AN ATTACHMENT
c149043 UEG0728S
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Parts for your 3406 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 2L-3331 [1] UNION  
2. 3N-6667 [2] HOSE ASSEM.  
3. 2L-3331 [1] UNION  
  3L-7055 C [1] UNION  
    (Use as Required)
  C   INDICATES CHANGE
 

#UEG0728S0293
 

4N-8048: COVER GP-FUEL SYSTEM

4N8048 FUEL SYSTEM COVER GROUP
Part of 4N2238 Basic Engine Arrangement listed on Pages 15 and 15B
Only separate parts serviced
c205300 UEG0728S
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Parts for your 3406 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 5L-7812 [2] BOLT  
  9M-1974 C [2] WASHER  
2. 4N-5656 [1] COVER-GOVERNOR  
3. 2P-8643 [1] GASKET  
  C   CHANGE FROM PREVIOUS TYPE
 

#UEG0728S0294
 

3N-6668: LINES GP-FLEXIBLE FUEL

3N6668 FLEXIBLE FUEL OIL LINES GROUP--Type 2
AN ATTACHMENT
c210997 UEG0728S
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Parts for your 3406 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 2L-3331 C [2] UNION  
2. 3N-6667 [2] HOSE ASSEM.  
  C   INDICATES CHANGE
 

#UEG0728S0295
 

4N-1661: FUEL INJECTION LINES GROUP

4N1661 FUEL INJECTION LINES GROUP
Serial No. 90U1 to 90U224 inclusive
Part of 4N2238 Basic Engine Arrangement listed on Page 15
Only separate parts serviced
c146565 UEG0728S
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Parts for your 3406 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4N-1292 [6] LOCK  
2. 9L-9814 [10] NUT  
3. 4N-1797 [6] ADAPTER ASSEM.  
4. 8M-4437 [1] SEAL  
5. 4N-5336 [6] LINE ASSEM.  
  1H-1023 [6] SEAL  
6. 4N-1651 [1] LINE ASSEM. (No. 1)  
7. 4N-1281 [2] STRIP ASSEM.  
8. 9S-8586 [1] STUD  
9. 9S-2299 [2] STRIP  
10. 4N-2555 [3] DAMPER  
11. 0S-1617 [3] BOLT  
12. 4N-1652 [1] LINE ASSEM. (No. 2)  
13. 5H-7153 [1] SEAL  
14. 1S-0004 [1] SEAL  
15. 2P-3202 [3] BOLT  
16. 4N-1653 [1] LINE ASSEM. (No. 3)  
17. 4N-1279 [1] STRIP ASSEM.  
18. 9S-8586 [1] STUD  
19. 4N-1654 [1] LINE ASSEM. (No. 4)  
20. 4N-1277 [1] CLIP  
  4N-8249 [1] DAMPER  
21. 2P-3200 [2] BOLT  
22. 4N-1659 [1] BRACKET  
23. 1P-6909 [1] STRIP ASSEM.  
24. 9S-8586 [1] STUD  
25. 4N-1655 [1] LINE ASSEM. (No. 5)  
26. 4N-1656 [1] LINE ASSEM. (No. 6)  
27. 4N-3759 [6] NUT  
28. 5P-2060 C [6] SEAL  
29. 4N-3761 [6] BODY  
30. 4N-7100 [6] NOZZLE ASSEM.  
  C   INDICATES CHANGE
 

#UEG0728S0296
 

4N-1661: FUEL INJECTION LINES GROUP

4N1661 FUEL INJECTION LINES GROUP
Serial No. 90U225-Up
Part of 4N2238 Basic Engine Arrangement listed on Page 15
Only separate parts serviced
c148271 UEG0728S
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Parts for your 3406 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4N-1292 [6] LOCK  
2. 9L-9814 [10] NUT  
3. 4N-1797 [6] ADAPTER ASSEM.  
4. 8M-4437 [1] SEAL  
5. 4N-5336 [6] LINE ASSEM.  
  1H-1023 [6] SEAL  
6. 4N-9971 C [1] LINE ASSEM. (No. 1)  
7. 4N-1281 [2] STRIP ASSEM.  
8. 9S-8586 [1] STUD  
9. 9S-2299 [2] STRIP  
10. 4N-2555 [3] DAMPER  
11. 0S-1617 [3] BOLT  
12. 4N-9972 C [1] LINE ASSEM. (No. 2)  
13. 5H-7153 [1] SEAL  
14. 1S-0004 [1] SEAL  
15. 2P-3202 [3] BOLT  
16. 4N-9973 C [1] LINE ASSEM. (No. 3)  
17. 4N-1279 [1] STRIP ASSEM.  
18. 9S-8586 [1] STUD  
19. 4N-9974 C [1] LINE ASSEM. (No. 4)  
20. 4N-1277 [1] CLIP  
  4N-8249 [1] DAMPER  
21. 2P-3200 [2] BOLT  
22. 4N-1659 [1] BRACKET  
23. 1P-6909 [1] STRIP ASSEM.  
24. 9S-8586 [1] STUD  
25. 4N-9975 C [1] LINE ASSEM. (No. 5)  
26. 4N-9976 C [1] LINE ASSEM. (No. 6)  
27. 4N-3759 [6] NUT  
28. 5P-2060 [6] SEAL  
29. 4N-3761 [6] BODY  
30. 9L-6884 C [6] NOZZLE ASSEM.  
  C   INDICATES CHANGE
 

#UEG0728S0297
 

4N-1662: LINES GP-FUEL INJECTION

4N1662 FUEL INJECTION LINES GROUP
Serial No. 90U1 to 90U230 inclusive
Part of 4N4238, 4N6191, 6N460, 6N458 and 6N459 Engine Procurement Arrangements listed on Pages 13, 16, 16A and 16B
Only separate parts serviced
c119377 UEG0728S
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Parts for your 3406 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4N-1292 [6] LOCK  
2. 9L-9814 [10] NUT  
3. 4N-1796 C [6] ADAPTER  
4. 8M-4437 C [6] SEAL  
5. 4N-5336 [6] LINE ASSEM.  
  1H-1023 [6] SEAL  
6. 4N-1651 [1] LINE ASSEM. (No. 1)  
7. 4N-1281 [2] STRIP ASSEM.  
8. 9S-8586 [1] STUD  
9. 9S-2299 [2] STRIP  
10. 4N-2555 [3] DAMPER  
11. 0S-1617 [3] BOLT  
12. 4N-1652 [1] LINE ASSEM. (No. 2)  
13. 5H-7153 [1] SEAL  
14. 1S-0004 [1] SEAL  
15. 2P-3202 [3] BOLT  
16. 4N-1653 [1] LINE ASSEM. (No. 3)  
17. 4N-1279 [1] STRIP ASSEM.  
18. 9S-8586 [1] STUD  
19. 4N-1654 [1] LINE ASSEM. (No. 4)  
20. 4N-1277 [1] CLIP  
  4N-8249 [1] DAMPER  
21. 2P-3200 [2] BOLT  
22. 4N-1659 [1] BRACKET  
23. 1P-6909 [1] STRIP ASSEM.  
24. 9S-8586 [1] STUD  
25. 4N-1655 [1] LINE ASSEM. (No. 5)  
26. 4N-1656 [1] LINE ASSEM. (No. 6)  
27. 4N-3759 [6] NUT  
28. 4N-4877 [6] BODY  
29. 4N-1251 [6] NOZZLE ASSEM.  
30. 3B-4506 C [2] LOCKWASHER  
31. 3B-4505 C [3] LOCKWASHER  
  C   INDICATES CHANGE
 

#UEG0728S0298
 

4N-1662: LINES GP-FUEL INJECTION

4N1662 FUEL INJECTION LINES GROUP
Serial No. 90U231-Up
Part of 4N4238, 4N6191, 6N460, 6N458 and 6N459 Engine Procurement Arrangements listed on Pages 13, 16, 16A and 16B
Only separate parts serviced
c206133 UEG0728S
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Parts for your 3406 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4N-1292 [6] LOCK  
2. 1B-5354 C [4] NUT  
3. 4N-1797 C [6] ADAPTER ASSEM.  
4. 8M-4437 [6] SEAL  
5. 4N-5336 [6] LINE ASSEM.  
  1H-1023 [6] SEAL  
6. 4N-9971 C [1] LINE ASSEM. (no. 1)  
7. 4N-1281 C [3] STRIP ASSEM.  
8. 9S-8586 [1] STUD  
9. 9S-2299 [2] STRIP  
10. 4N-2555 [3] DAMPER  
11. 0S-1617 [3] BOLT  
12. 4N-9972 C [1] LINE ASSEM. (no. 2)  
13. 5H-7153 [1] SEAL  
14. 1S-0004 [1] SEAL  
15. 1A-2029 C [3] BOLT  
16. 4N-9973 C [1] LINE ASSEM. (no. 3)  
17. 4N-1251 [6] NOZZLE ASSEM.  
18. 9M-1974 C [7] WASHER  
19. 4N-9974 C [1] LINE ASSEM. (no. 4)  
20. 4N-1277 [1] CLIP  
  4N-8249 [1] DAMPER  
21. 0S-1594 C [2] BOLT  
  5M-2894 [2] WASHER  
22. 9N-1847 C [1] BRACKET  
23. 1P-6909 [1] STRIP ASSEM.  
24. 9S-8586 [1] STUD  
25. 4N-9975 C [1] LINE ASSEM. (no. 5)  
26. 4N-9976 C [1] LINE ASSEM. (no. 6)  
27. 4N-3759 [6] NUT  
28. 4N-4877 [6] BODY  
29. 9L-9814 C [6] NUT  
  C   INDICATES CHANGE
 

#UEG0728S0299
 

5N-7710: FUEL INJECTION LINES GROUP

5N7710 FUEL INJECTION LINES GROUP
ONLY FOR USE WITH DIRECT INJECTION FUEL SYSTEM AND 5N7741 DRAIN LINE GROUP SHOWN ON PAGE 108B
AN ATTACHMENT
c232555 UEG0728S
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Parts for your 3406 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 5N-7711 [1] LINE ASSEM.  
2. 5N-7712 [1] LINE ASSEM.  
3. 5N-7713 [1] LINE ASSEM.  
4. 5N-7714 [1] LINE ASSEM.  
5. 5N-7715 [1] LINE ASSEM.  
6. 5N-7716 [1] LINE ASSEM.  
7. 5N-7717 [6] LINE ASSEM.  
8. 8M-4437 [6] SEAL  
9. 5P-2060 [6] SEAL  
10. 5N-7730 [6] ADAPTER ASSEM.  
11. 5P-9795 [12] SEAL  
12. 9L-9814 [6] NUT  
13. 8F-1179 [1] CLIP  
14. 5P-9267 [6] SEAL  
15. 1A-9579 [2] BOLT  
16. 1B-5354 [3] NUT  
17. 9M-1974 [6] WASHER  
18. 4N-1278 [3] STRIP  
19. 5N-7732 [6] DAMPER  
20. 9S-2299 [3] STRIP  
21. 7B-1597 [1] CLIP  
22. 1D-4538 [1] BOLT  
23. 5N-4213 [1] SPACER  
24. 0S-1617 [3] BOLT  
 

Information:

Engine News
A New Specification Has Been Issued for the Primary Fuel Filter Filtration {1260}
A New Specification Has Been Issued for the Primary Fuel Filter Filtration {1260}
Specifications
Primary Fuel Filter
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Fuel Filter Base
3406 INDUSTRIAL & MARINE ENGINES
Bracket For Fuel Filter Base
3406 INDUSTRIAL & MARINE ENGINES
Primary Fuel Filter
3406 INDUSTRIAL & MARINE ENGINES
Tool Operating Manual
20 GPM Portable Fuel Filtration System {0374, 0599, 0706, 1250, 1256, 1261}
20 GPM Portable Fuel Filtration System {0374, 0599, 0706, 1250, 1256, 1261}
Disassembly and Assembly
Fuel Priming Pump
3406 INDUSTRIAL & MARINE ENGINES
Fuel Filter Base
3406 INDUSTRIAL & MARINE ENGINES
Service Magazine

Caterpillar Parts SIS Catalog 3406 :

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