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2N7442 NATURALLY ASPIRATED ENGINE CONVERSION ARRANGEMENT--Part 2 of 2 Type 1--Factory Installation G343


ENGINE ARRANGEMENT
CONVERSION GP-ENGINE
AIR INLET AND EXHAUST SYSTEM
AIR CLEANER GP
COOLING SYSTEM
RADIATOR GP
FAN GP
BASIC ENGINE
DRIVE GP-FAN


ENGINE ARRANGEMENT

CONVERSION GP-ENGINE
 

#UEG0250S0130
 

2N-7442: NATURALLY ASPIRATED ENGINE CONVERSION ARRANGEMENT

2N7442 NATURALLY ASPIRATED ENGINE CONVERSION ARRANGEMENT--Part 2 of 2
Type 1--Factory Installation
c154594 UEG0250S
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Parts for your G343 GAS ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 8B-2377 [2] BOLT  
  1B-4330 [2] NUT  
  4B-4276 [2] WASHER  
2. 6L-9931 [1] SUPPORT  
3. 1B-5355 [4] NUT  
4. 5B-7890 [3] PLUG  
5. 6L-7897 [1] ELBOW  
  7M-7273 [1] GASKET  
6. 9B-0887 [1] PLUG  
7. 6L-2780 [1] GASKET  
8. 6L-2774 [1] EXTENSION ASSEM.  
  8M-5860 [5] PLUG  
9. 2M-1538 [4] STUD  
    (Parts of 6L2774 Assem.)
10. 3J-5389 [1] PLUG  
11. 5B-5098 [1] PLUG  
12. 1H-6666 [1] COVER  
  6L-6580 [1] GASKET  
13. 0S-1594 [2] BOLT  
14. 3B-4506 [6] LOCKWASHER  
15. 2N-7437 [1] SUPPORT ASSEM.  
16. 5B-5590 [1] COVER  
  5B-9656 [1] GASKET  
17. 0T-0320 [3] BOLT  
  3B-4507 [3] LOCKWASHER  
18. 0S-1571 [4] BOLT  
  1D-4717 [4] NUT  
19. 5L-7874 [1] SCREEN  
 

#UEG0250S0131
 

2N-7442: NATURALLY ASPIRATED ENGINE CONVERSION GROUP

2N7442 NATURALLY ASPIRATED ENGINE CONVERSION GROUP--Part 1 of 2--Type 2--Factory Installation
6N3685 Air Cleaner parts are shown on Page 53D
c154585 UEG0250S
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Parts for your G343 GAS ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 3J-5390 [1] PLUG  
2. 0S-1591 [16] BOLT  
3. 3B-4506 [35] LOCKWASHER  
4. 6L-5303 [1] GASKET  
5. 2N-7441 [1] ADAPTER ASSEM.  
  2M-8016 [1] GASKET  
6. 5M-6214 [1] PLUG  
7. 5P-1268 H HOSE 76.20 cm(3 in.)  
8. 5L-7875 [2] BAND  
9. 2N-7434 [1] COUPLING ASSEM.  
10. 9M-8788 [1] SEAL  
11. 6N-3685 YC [1] CLEANER GROUP  
    (Separate Illustration)
12. 0L-1351 [1] BOLT  
13. 5F-6259 [1] COVER  
14. 5F-3181 [1] GASKET  
15. 3B-1915 [1] BOLT  
16. 1S-6629 [1] COVER  
  9M-2678 [1] GASKET  
17. 0S-1594 [13] BOLT  
18. 0S-1588 [4] BOLT  
  C   INDICATES CHANGE
  Y   SEPARATE ILLUSTRATION
  H   ORDER BY THE CENTIMETRE
 

#UEG0250S0132
 

2N-7442: NATURALLY ASPIRATED ENGINE CONVERSION GROUP

2N7442 NATURALLY ASPIRATED ENGINE CONVERSION GROUP--Part 2 of 2
Type 2--Factory Installation
c154586 UEG0250S
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Parts for your G343 GAS ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 8B-2377 [2] BOLT  
  1B-4330 [2] NUT  
  4B-4276 [2] WASHER  
2. 6L-9931 [1] SUPPORT  
3. 1B-5355 [4] NUT  
4. 5B-7890 [3] PLUG  
5. 6L-7897 [1] ELBOW  
  7M-7273 [1] GASKET  
6. 9B-0887 [1] PLUG  
7. 6L-2780 [1] GASKET  
8. 6L-2774 [1] EXTENSION ASSEM.  
  8M-5860 [5] PLUG  
9. 2M-1538 [4] STUD  
    (Parts of 6L2774 Assem.)
10. 3J-5389 [1] PLUG  
11. 8B-8817 C [1] PLUG  
12. 1H-6666 [1] COVER  
  6L-6580 [1] GASKET  
13. 0S-1594 [2] BOLT  
14. 3B-4506 [6] LOCKWASHER  
15. 2N-7437 [1] SUPPORT ASSEM.  
16. 5B-5590 [1] COVER  
  5B-9656 [1] GASKET  
17. 0T-0320 [3] BOLT  
  3B-4507 [3] LOCKWASHER  
18. 0S-1571 [4] BOLT  
1. 1D-4717 [4] NUT  
19. 5L-7874 [1] SCREEN  
  C   INDICATES CHANGE
 

#UEG0250S0133
 

6N-3685: AIR CLEANER GP

6N3685 AIR CLEANER GROUP
Part of 2N7442 Naturally Aspirated Engine Conversion Group shown on Page 53A
c154271 UEG0250S
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Parts for your G343 GAS ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4L-9852 [1] ELEMENT ASSEM.  
    (Includes)
  4L-9891 [1] GASKET  
2. 2N-9881 [1] COVER ASSEM.  
3. 7L-8470 [1] BODY ASSEM.  
    THE FOLLOWING REPAIR KIT IS AVAILABLE:
  2N-9882 [1] KIT (spacer)  
    (Includes Spacers and Adhesive)
 

#UEG0250S0134
 

2N-7541: RADIATOR GROUP

2N7541 RADIATOR GROUP - Type 1
FOR USE WITH NATURALLY ASPIRATED ENGINE
c110470 UEG0250S
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Parts for your G343 GAS ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  3B-1915 [2] BOLT  
  1D-4717 [2] NUT  
  3B-4506 [2] LOCKWASHER  
  4B-5271 [2] WASHER  
  0S-1590 [4] BOLT  
  3B-4506 [4] LOCKWASHER  
  1D-4717 [4] NUT  
  2B-0941 [4] SPACER  
  4L-4673 Y [1] RADIATOR ASSEM.  
    (See Separate Illustration)
  6L-3279 [1] BRACE  
  2L-7018 [4] PAD  
  1D-4706 [1] BOLT  
  3B-4506 [1] LOCKWASHER  
  4B-5271 [1] WASHER  
  2H-3755 [20] BOLT  
  3B-4505 [20] LOCKWASHER  
  4B-5270 [20] WASHER  
  4L-4711 [2] GUARD ASSEM.  
  4L-3864 [1] ELBOW  
  4L-4642 [1] GASKET  
  0S-1594 [4] BOLT  
  3B-4506 [4] LOCKWASHER  
  0T-0319 [4] BOLT  
  1D-4718 [4] NUT  
  3B-4507 [4] LOCKWASHER  
  1C-1976 [4] WASHER (.4375" DIA.)  
  4B-1040 [4] WASHER (.75" DIA.)  
  4L-4448 [4] ISOLATOR  
  4L-5754 [1] SUPPORT (L.H.)  
  0S-1587 [2] BOLT  
  1D-4719 [2] NUT  
  3B-4508 [2] LOCKWASHER  
  1B-5174 [1] PLUG  
  1B-5174 [1] PLUG  
  6L-3945 [1] HOSE  
  2J-1737 [2] CLAMP  
  2J-1737 [2] CLAMP  
  6L-3943 [1] HOSE  
  0S-1571 [1] BOLT  
  3B-4506 [1] LOCKWASHER  
  4B-5271 [1] WASHER  
  4L-7516 [2] PLATE  
  6L-3278 [1] BRACE  
  2N-7540 [1] ELBOW ASSEM.  
  4L-3804 [1] GASKET  
  1A-2029 [4] BOLT  
  3B-4506 [4] LOCKWASHER  
  2L-7018 [4] PAD  
  0S-0509 [4] BOLT  
  3B-4506 [4] LOCKWASHER  
  4L-5757 [2] STRAP  
  4L-5734 [1] GUARD  
  0S-1594 [8] BOLT  
  3B-4506 [8] LOCKWASHER  
  3F-1417 [8] WASHER  
  5L-1707 [1] COVER  
  4L-4642 [1] GASKET  
  0L-1351 [4] BOLT  
  3B-4506 [4] LOCKWASHER  
  7F-5227 [4] BOLT (3.75" LONG)  
    (FRONT ENGINE SUPPORT)
  1B-4331 [4] NUT  
  3B-4512 [4] LOCKWASHER  
  4L-5753 [1] SUPPORT (R.H.)  
  0S-1587 [2] BOLT  
  1D-4719 [2] NUT  
  3B-4508 [2] LOCKWASHER  
  Y   SEPARATE ILLUSTRATION
 

#UEG0250S0135
 

2N-7541: RADIATOR GROUP

2N7541 RADIATOR GROUP--Type 2
FOR USE WITH NATURALLY ASPIRATED ENGINE
4L4673 Radiator parts are shown on Page 55
c141888 UEG0250S
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Parts for your G343 GAS ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  3B-1915 C [1] BOLT  
  1D-4717 C [1] NUT  
  3B-4506 C [1] LOCKWASHER  
  4B-5271 C [1] WASHER  
  0S-1590 C [2] BOLT  
  3B-4506 C [2] LOCKWASHER  
  1D-4717 C [2] NUT  
  2B-0941 C [2] SPACER  
  4L-4673 Y [1] RADIATOR ASSEM.  
    (SEPARATE ILLUSTRATION)
  6L-3279 [1] BRACE  
  2L-7018 [4] PAD  
  1D-4706 [1] BOLT  
  3B-4506 [1] LOCKWASHER  
  4B-5271 [1] WASHER  
  2H-3755 [20] BOLT  
  3B-4505 [20] LOCKWASHER  
  4B-5270 [20] WASHER  
  4L-4711 [2] GUARD ASSEM  
  4L-3864 [1] ELBOW  
  4L-4642 [1] GASKET  
  0S-1594 [4] BOLT  
  3B-4506 [4] LOCKWASHER  
  0T-0319 [4] BOLT  
  1D-4718 [4] NUT  
  3B-4507 [4] LOCKWASHER  
  1C-1976 [4] WASHER (.4375" DIA)  
  4B-1040 [4] WASHER (75" DIA.)  
  4L-4448 [4] ISOLATOR  
  4L-5754 [1] SUPPORT (L.H.)  
  0S-1587 [2] BOLT  
  1D-4719 [2] NUT  
  3B-4508 [2] LOCKWASHER  
  1B-5174 [1] PLUG  
  1B-5174 [1] PLUG  
  6L-3945 [1] HOSE  
  2J-1737 [2] CLAMP  
  2J-1737 [2] CLAMP  
  6L-3943 [1] HOSE  
  0L-1143 C [1] BOLT  
  2L-7018 [2] PAD  
  1D-4717 [1] NUT  
  3B-4506 [1] LOCKWASHER  
  4L-7516 [1] PLATE  
  3N-2809 C [1] BRACE  
  2N-7540 [1] ELBOW ASSEM.  
  4L-3804 [1] GASKET  
  0S-1571 [1] BOLT  
  3B-4506 [1] LOCKWASHER  
  4B-4271 [1] WASHER  
  2L-7018 [2] PAD  
  1A-2029 [4] BOLT  
  3B-4506 [4] LOCKWASHER  
  0S-0509 [4] BOLT  
  3B-4506 [4] LOCKWASHER  
  4L-5757 [2] STRAP  
  4L-5734 [1] GUARD  
  0S-1594 [8] BOLT  
  3B-4506 [8] LOCKWASHER  
  3F-1417 [8] WASHER  
  5L-1707 [1] COVER  
  4L-4642 [1] GASKET  
  0L-1351 [4] BOLT  
  3B-4506 [4] LOCKWASHER  
  7F-5227 [4] BOLT (3.75" LONG)  
    (FRONT ENGINE SUPPORT)
  1B-4331 [4] NUT  
  3B-4512 [4] LOCKWASHER  
  4L-5753 [1] SUPPORT (R.H.)  
  0S-1587 [2] BOLT  
  1D-4719 [2] NUT  
  3B-4508 [2] LOCKWASHER  
  C   INDICATES CHANGE
  Y   SEPARATE ILLUSTRATION
 

#UEG0250S0136
 

2N-7541: RADIATOR GROUP

2N7541 RADIATOR GROUP--Type 3
FOR USE WITH NATURALLY ASPIRATED ENGINE
4L4673 Radiator parts are shown on Page 55
c162204 UEG0250S
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Parts for your G343 GAS ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  3B-1915 [1] BOLT  
  1D-4717 [1] NUT  
  3B-4506 [1] LOCKWASHER  
  4B-5271 [1] WASHER  
  0S-1590 [2] BOLT  
  3B-4506 [2] LOCKWASHER  
  1D-4717 [2] NUT  
  2B-0941 [2] SPACER  
  4L-4673 Y [1] RADIATOR ASSEM.  
    (SEPARATE ILLUSTRATION)
  6N-7103 RC [1] BRACE  
  2L-7018 [4] PAD  
  8F-8544 C [1] BOLT  
  3B-4506 [1] LOCKWASHER  
  4B-5271 [1] WASHER  
  2H-3755 [20] BOLT  
  3B-4505 [20] LOCKWASHER  
  4B-5270 [20] WASHER  
  4L-4711 [2] GUARD ASSEM.  
  4L-3864 [1] ELBOW  
  4L-4642 [1] GASKET  
  0S-1594 [4] BOLT  
  3B-4506 [4] LOCKWASHER  
  0T-0319 [4] BOLT  
  1D-4718 [4] NUT  
  3B-4507 [4] LOCKWASHER  
  1C-1976 [4] WASHER (.4375" DIA.)  
  4B-1040 [4] WASHER (75" DIA.)  
  4L-4448 [4] ISOLATOR  
  4L-5754 [1] SUPPORT (L.H.)  
  0S-1587 [2] BOLT  
  1D-4719 [2] NUT  
  3B-4508 [2] LOCKWASHER  
  1B-5174 [1] PLUG  
  1B-5174 [1] PLUG  
  6L-3945 [1] HOSE  
  2J-1737 [2] CLAMP  
  2J-1737 [2] CLAMP  
  6L-3943 [1] HOSE  
  0L-1143 [1] BOLT  
  2L-7018 [2] PAD  
  1D-4717 [1] NUT  
  3B-4506 [1] LOCKWASHER  
  4L-7516 [1] PLATE  
  6N-7102 C [1] BRACE  
  2N-7540 [1] ELBOW ASSEM.  
  4L-3804 [1] GASKET  
  0S-1590 C [1] BOLT  
  3B-4506 [1] LOCKWASHER  
  4B-4271 [1] WASHER  
  2L-7018 [2] PAD  
  1A-2029 [4] BOLT  
  3B-4506 [4] LOCKWASHER  
  0S-0509 [4] BOLT  
  3B-4506 [4] LOCKWASHER  
  4L-5757 [2] STRAP  
  4L-5734 [1] GUARD  
  0S-1594 [8] BOLT  
  3B-4506 [8] LOCKWASHER  
  3F-1417 [8] WASHER  
  5L-1707 [1] COVER  
  4L-4642 [1] GASKET  
  0L-1351 [4] BOLT  
  3B-4506 [4] LOCKWASHER  
  7F-5227 [4] BOLT (3.75" LONG)  
    (FRONT ENGINE SUPPORT)
  1B-4331 [4] NUT  
  3B-4512 [4] LOCKWASHER  
  4L-5753 [1] SUPPORT (R.H.)  
  0S-1587 [2] BOLT  
  1D-4719 [2] NUT  
  3B-4508 [2] LOCKWASHER  
  R   REMFG PART MAY BE AVAILABLE
  Y   SEPARATE ILLUSTRATION
  C   INDICATES CHANGE
 

#UEG0250S0137
 

4L-4673: RADIATOR ASSEMBLY

4L4673 RADIATOR ASSEMBLY
Part of 2N7541 Radiator Group shown on Pages 54 and 54A
c137444 UEG0250S
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Parts for your G343 GAS ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  3L-5151 [1] CONNECTOR  
  7L-5878 C [1] TANK ASSEM.  
  4L-4685 [4] WASHER (CORE)  
  0S-1594 C [8] BOLT (1" LONG)  
  0S-1588 C [8] BOLT (1.25 LONG)  
  1D-4717 C [16] NUT  
  3B-4506 C [16] LOCKWASHER  
  4L-4681 [2] MOUNTING STRIP ASSEM.  
  0S-1617 [10] BOLT  
  3B-4505 [10] LOCKWASHER  
  4L-4679 [1] TUBE  
  3L-1749 [2] CLIP  
  4L-4682 [2] MOUNTING STRIP ASSEM.  
  0S-1618 C [64] BOLT  
  1D-4716 C [64] NUT  
  3B-4505 C [64] LOCKWASHER  
  4L-4688 [1] TANK ASSEM.  
  6L-8617 C [1] CAP  
  1B-7182 [8] BOLT  
  1D-4716 [8] NUT  
  3B-4505 [8] LOCKWASHER  
  4L-4683 [4] CLIP  
  4L-4687 [1] CORE ASSEM.  
  1B-2578 [2] NUT  
  3L-5148 [2] SCREW  
  4L-4686 [2] SIDE ASSEM.  
  3L-1762 [5] GASKET  
  0S-1617 [12] BOLT  
  3B-4505 [12] LOCKWASHER  
  C   INDICATES CHANGE
 

#UEG0250S0138
 

7L-6486: BLOWER FAN AND DRIVE GROUP

7L6486 BLOWER FAN AND DRIVE GROUP
Only separate parts serviced. When complete Group is required
order 2N7512
c110322 UEG0250S
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Parts for your G343 GAS ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4L-3844 [1] PLATE ASSEM.  
2. 3H-7928 [1] BOLT  
3. 5M-9737 [1] SEAL  
4. 0S-1588 [6] BOLT  
5. 3B-4506 [6] LOCKWASHER  
6. 7L-2298 [1] SPACER  
7. 1B-3867 [2] BEARING  
8. 6H-5536 [1] SPIDER ASSEM.  
9. 0S-1618 [4] BOLT  
  3B-4505 [4] LOCKWASHER  
  4B-4277 [4] WASHER  
10. 7L-2302 [1] COVER  
  7L-2301 [1] GASKET  
11. 4B-9883 [2] BOLT  
  7L-2303 [1] LOCK  
12. 7L-7724 [1] HUB  
13. 0S-1585 [6] BOLT  
  1D-4719 [6] NUT  
14. 3B-4508 [10] LOCKWASHER  
15. 7L-2299 [1] WASHER  
16. 3B-8489 [1] FITTING  
17. 7L-2309 [1] PULLEY  
18. 2N-8612 [1] VEE BELT SET  
    (Consists of 3 Vee Belts)
19. 7L-2305 [1] SHAFT ASSEM.  
20. 0S-1587 [4] BOLT  
21. 9B-1006 [4] WASHER  
 

#UEG0250S0139
 

7L-7422: SUCTION FAN AND DRIVE GROUP

7L7422 SUCTION FAN AND DRIVE GROUP
Only separate parts serviced. When complete Group is required
order 2N7559 shown on Page 56B
c110466 UEG0250S
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Parts for your G343 GAS ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4L-3844 [1] PLATE ASSEM.  
2. 3H-7928 [1] BOLT  
3. 5M-9737 [1] SEAL  
4. 0S-1588 [6] BOLT  
5. 3B-4506 [6] LOCKWASHER  
6. 7L-2298 [1] SPACER  
7. 1B-3867 [2] BEARING  
8. 6H-5539 [1] SPIDER ASSEM.  
9. 2H-8613 [1] SPACER  
  3H-2168 [3] RIVET  
    (Parts of 6H5539 Spider Assem.)
10. 0S-1618 [4] BOLT  
  3B-4505 [4] LOCKWASHER  
  4B-4277 [4] WASHER  
11. 7L-2302 [1] COVER  
  7L-2301 [1] GASKET  
12. 1A-5822 [6] BOLT  
  1D-4719 [6] NUT  
13. 3B-4508 [10] LOCKWASHER  
14. 7L-7724 [1] HUB  
15. 4B-9883 [2] BOLT  
  7L-2303 [1] LOCK  
16. 7L-2299 [1] WASHER  
17. 3B-8489 [1] FITTING  
18. 7L-2309 [1] PULLEY  
19. 7L-2305 [1] SHAFT ASSEM.  
20. 0S-1587 [4] BOLT  
  9B-1006 [4] WASHER  
21. 2N-8612 [1] VEE BELT SET  
    (Consists of 3 belts)
 

Information:

Caterpillar Parts SIS Catalog G343 :

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