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1N5005 RADIATOR GROUP--High Capacity--Type 2 FOR USE WITH FRONT SUPPORT AND 40", 8 BLADE FAN. CANNOT BE USED WITH HOOD AND DASH. 8L9319 Radiator parts are shown on Page 80. AN ATTACHMENT D343




COOLING SYSTEM

RADIATOR GP
 

#UEG0873S0100
 

1N-5005: RADIATOR GROUP

1N5005 RADIATOR GROUP--High Capacity--Type 2
FOR USE WITH FRONT SUPPORT AND 40", 8 BLADE FAN. CANNOT BE USED WITH
HOOD AND DASH. 8L9319 Radiator parts are shown on Page 80. AN ATTACHMENT
c161048 UEG0873S
  For full view, you need register

Parts for your D343 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 0S-1587 C [1] BOLT  
2. 3B-4508 [2] LOCKWASHER  
  4B-4280 [2] WASHER  
3. 2L-7019 [4] PAD  
4. 6N-8273 C [1] BRACE ASSEM. (L.H.)  
5. 6N-8277 C [1] BRACE ASSEM. (R.H.)  
6. 3B-1915 [4] BOLT  
  2L-7018 [8] PAD  
7. 3B-4506 [18] LOCKWASHER  
8. 4B-4278 [8] WASHER  
9. 6L-9850 [1] CAP  
10. 8L-9319 Y [1] RADIATOR ASSEM.  
    (Separate Illustration)
11. 8L-8564 [2] MOUNTING  
12. 1H-9726 [2] WASHER  
13. 3D-2094 C [2] BOLT  
  2K-4821 [2] LOCKNUT  
  4B-4281 [2] WASHER  
14. 8L-8557 [1] SUPPORT ASSEM. (R.H.)  
  8L-8558 [1] SUPPORT ASSEM. (L.H.)  
15. 0S-1589 [8] BOLT  
  1D-4720 [8] NUT  
  3B-4510 [8] LOCKWASHER  
16. 9F-0307 [1] COVER  
  6L-4980 [1] GASKET  
17. 0L-1351 [4] BOLT  
18. 6L-3945 [1] HOSE  
19. 4L-4641 [1] TUBE ASSEM.  
  1H-7666 [1] GASKET  
20. 2J-1737 [6] CLAMP  
21. 2H-3755 [22] BOLT  
  3B-4505 [22] LOCKWASHER  
  4B-5270 [22] WASHER  
22. 4L-4729 [1] GUARD ASSEM. (R.H.)  
  4L-4730 [1] GUARD ASSEM. (L.H.)  
23. 0S-0509 [4] BOLT  
  4L-5757 [2] STRAP  
24. 8L-8668 [1] PLATE ASSEM.  
25. 6L-3943 [1] HOSE  
26. 7F-3425 [2] BOLT  
27. 4L-3804 [1] GASKET  
28. 032-3180 C [1] BOLT  
29. 6L-3097 [1] ELBOW  
30. 6L-4364 [1] HOSE  
31. 6L-4482 [1] ELBOW  
  C   INDICATES CHANGE
  Y   SEPARATE ILLUSTRATION
 

#UEG0873S0101
 

3N-6369: RADIATOR GROUP

3N6369 RADIATOR GROUP--With Duct Flange--High Capacity--Type 1
FOR USE WITH FRONT SUPPORT AND 40", 8 BLADE FAN. CANNOT BE USED WITH
HOOD AND DASH. 3N6368 Radiator parts are shown on Pages 81 & 82. AN ATTACHMENT
c144773 UEG0873S
  For full view, you need register

Parts for your D343 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 0S-1585 [1] BOLT  
2. 3B-4508 [2] LOCKWASHER  
  4B-4280 [2] WASHER  
3. 2L-7019 [4] PAD  
4. 8L-8666 [1] BRACE ASSEM. (L.H.)  
5. 8L-8665 [1] BRACE ASSEM. (R.H.)  
6. 3B-1915 [8] BOLT  
  2L-7018 [8] PAD  
7. 3B-4506 [18] LOCKWASHER  
8. 4B-4278 [8] WASHER  
9. 6L-9850 [1] CAP  
10. 3N-6368 Y [1] RADIATOR ASSEM.  
    (Separate Illustration)
11. 8L-8564 [2] MOUNTING  
12. 1H-9726 [2] WASHER  
13. 0S-1601 [2] BOLT  
  2K-4821 [2] NUT  
  4B-4281 [2] WASHER  
14. 8L-8557 [1] SUPPORT ASSEM. (R.H.)  
  8L-8558 [1] SUPPORT ASSEM. (L.H.)  
15. 0S-1589 [8] BOLT  
  1D-4720 [8] NUT  
  3B-4510 [8] LOCKWASHER  
16. 9F-0307 [1] COVER  
  6L-4980 [1] GASKET  
17. 0L-1351 [4] BOLT  
18. 2S-6661 H [1] HOSE  
19. 4L-4641 [1] TUBE ASSEM.  
  1H-7666 [1] GASKET  
20. 2J-1737 [6] CLAMP  
21. 2H-3755 [22] BOLT  
  3B-4505 [22] LOCKWASHER  
  4B-5270 [22] WASHER  
22. 4L-4729 [1] GUARD ASSEM. (R.H.)  
  4L-4730 [1] GUARD ASSEM. (L.H.)  
23. 0S-0509 [4] BOLT  
  4L-5757 [2] STRAP  
24. 8L-8668 [1] PLATE ASSEM.  
25. 2S-6661 H [1] HOSE  
26. 7F-3425 [2] BOLT  
27. 4L-3804 [1] GASKET  
28. 7B-3235 [1] BOLT  
29. 6L-3097 [1] ELBOW  
30. 2S-6661 H [1] HOSE  
31. 6L-4482 [1] ELBOW  
  H   ORDER BY THE INCH
  Y   SEPARATE ILLUSTRATION
 

#UEG0873S0102
 

3N-6369: RADIATOR GROUP

3N6369 RADIATOR GROUP--With Duct Flange--High Capacity--Type 2
FOR USE WITH FRONT SUPPORT AND 40", 8 BLADE FAN. CANNOT BE USED WITH
HOOD AND DASH. 3N6368 Radiator parts are shown on Pages 81 and 82
AN ATTACHMENT
c162219 UEG0873S
  For full view, you need register

Parts for your D343 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 0S-1587 C [1] BOLT  
2. 3B-4508 [2] LOCKWASHER  
  4B-4280 [2] WASHER  
3. 2L-7019 [4] PAD  
4. 6N-8273 C [1] BRACE ASSEM. (L.H.)  
5. 6N-8277 C [1] BRACE ASSEM. (R.H.)  
6. 3B-1915 [8] BOLT  
  2L-7018 [8] PAD  
7. 3B-4506 [18] LOCKWASHER  
8. 4B-4278 [8] WASHER  
9. 6L-9850 [1] CAP  
10. 3N-6368 Y [1] RADIATOR ASSEM.  
    (Separate Illustration)
11. 8L-8564 [2] MOUNTING  
12. 1H-9726 [2] WASHER  
13. 3D-2094 C [2] BOLT  
  2K-4821 [2] NUT  
  4B-4281 [2] WASHER  
14. 8L-8557 [1] SUPPORT ASSEM. (R.H.)  
  8L-8558 [1] SUPPORT ASSEM. (L.H.)  
15. 0S-1589 [8] BOLT  
  1D-4720 [8] NUT  
  3B-4510 [8] LOCKWASHER  
16. 9F-0307 [1] COVER  
  6L-4980 [1] GASKET  
17. 0L-1351 [4] BOLT  
18. 5P-1265 CH HOSE 15.87 cm (6.25 in.)  
19. 4L-4641 [1] TUBE ASSEM.  
  1H-7666 [1] GASKET  
20. 2J-1737 [6] CLAMP  
21. 2H-3755 [22] BOLT  
  3B-4505 [22] LOCKWASHER  
  4B-5270 [22] WASHER  
22. 4L-4729 [1] GUARD ASSEM. (R.H.)  
  4L-4730 [1] GUARD ASSEM. (L.H.)  
23. 0S-0509 [4] BOLT  
  4L-5757 [2] STRAP  
24. 8L-8668 [1] PLATE ASSEM.  
25. 5P-1265 CH HOSE 11.43 cm (4.50 in.)  
26. 7F-3425 [2] BOLT  
27. 4L-3804 [1] GASKET  
28. 032-3180 C [1] BOLT  
29. 6L-3097 [1] ELBOW  
30. CH HOSE 7.62 cm (3 in.)  
31. 6L-4482 [1] ELBOW  
  H   ORDER BY THE CENTIMETRE
  Y   SEPARATE ILLUSTRATION
 

#UEG0873S0103
 

4L-4673: RADIATOR ASSEMBLY

4L4673 RADIATOR ASSEMBLY--Type 1
Part of 6L3282 and 3N6676 Radiator Groups shown on Pages 74 and 75
c70607 UEG0873S
  For full view, you need register

Parts for your D343 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  3L-5151 [1] CONNECTOR  
  4L-4680 [1] TANK ASSEM.  
  4L-4685 [4] WASHER (CORE)  
  0S-1618 [72] BOLT (1" LONG)  
  1D-4716 [72] NUT  
  3B-4505 [72] 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.  
  4L-4688 [1] TANK ASSEM.  
  3L-3368 [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  
  1B-7182 [8] BOLT  
  1D-4716 [8] NUT  
  3B-4505 [8] LOCKWASHER  
  0S-1617 [12] BOLT  
  3B-4505 [12] LOCKWASHER  
 

#UEG0873S0104
 

4L-4673: RADIATOR ASSEMBLY

4L4673 RADIATOR ASSEMBLY--Type 2
Part of 6L3282 and 3N6676 Radiator Groups shown on Pages 74 and 75
c137444 UEG0873S
  For full view, you need register

Parts for your D343 INDUSTRIAL 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
 

#UEG0873S0105
 

8L-9319: RADIATOR ASSEMBLY

8L9319 RADIATOR ASSEMBLY
Part of 1N5005 Radiator Group shown on Page 76
c132221 UEG0873S
  For full view, you need register

Parts for your D343 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 2N-5129 [1] FRAME ASSEM. (Top)  
2. 3L-5088 [8] CLIP  
3. 3S-7640 H HOSE 72"  
4. 2N-5132 [3] CLIP  
5. 2N-5128 [2] FRAME ASSEM. (Side)  
6. 0S-1617 [30] BOLT  
7. 3B-4505 [126] LOCKWASHER  
8. 2H-3755 [8] BOLT  
9. 2N-5130 [1] FRAME ASSEM. (Bottom)  
10. 0S-1616 [18] BOLT  
  3B-4504 [18] LOCKWASHER  
11. 0S-1618 [88] BOLT  
  1D-4716 [88] NUT  
12. 2N-5124 [2] SIDE ASSEM.  
13. 7S-0626 [2] SCREW  
  1B-2578 [2] NUT  
14. 2N-5123 [1] TANK ASSEM. (Bottom)  
15. 2N-5126 [4] WASHER  
16. 3L-1762 [6] GASKET  
17. 2N-5125 [1] CORE ASSEM.  
18. 2N-5127 [1] GUARD ASSEM.  
19. 5B-1345 [2] CLIP  
20. 2N-5131 [8] CLIP ASSEM.  
21. 2N-5122 [1] TANK ASSEM. (Top)  
  H   ORDER BY THE INCH
 

#UEG0873S0106
 

3N-6368: RADIATOR ASSEMBLY

3N6368 RADIATOR ASSEMBLY--Type 1
Part of 3N6369 Radiator Group shown on Page 77
c144774 UEG0873S
  For full view, you need register

Parts for your D343 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 2N-5129 [1] FRAME ASSEM. (Top)  
2. 3L-5088 [8] CLIP  
3. 3S-7640 H HOSE 72"  
4. 2N-5132 [3] CLIP  
5. 2N-5128 [2] FRAME ASSEM. (Side)  
6. 0S-1617 [30] BOLT  
7. 3B-4505 [126] LOCKWASHER  
8. 2H-3755 [8] BOLT  
9. 2N-5130 [1] FRAME ASSEM. (Bottom)  
10. 1B-2714 [6] BOLT  
  3B-4504 [6] LOCKWASHER  
11. 0S-1618 [88] BOLT  
  1D-4716 [88] NUT  
12. 2N-5124 [2] SIDE ASSEM.  
13. 7S-0626 [2] SCREW  
  1B-2578 [2] NUT  
14. 2N-5123 [1] TANK ASSEM. (Bottom)  
15. 2N-5126 [4] WASHER  
16. 3L-1762 [6] GASKET  
17. 2N-5125 [1] CORE ASSEM.  
18. 3N-6370 [1] FLANGE ASSEM.  
19. 5B-1345 [2] CLIP  
20. 2P-0941 [12] SPACER  
21. 2N-5122 [1] TANK ASSEM. (top)  
22. 4B-4276 [18] WASHER  
  H   ORDER BY THE INCH
 

#UEG0873S0107
 

3N-6368: RADIATOR ASSEMBLY

3N6368 RADIATOR ASSEMBLY--Type 2
Part of 3N6369 Radiator Group shown on Page 77
c148629 UEG0873S
  For full view, you need register

Parts for your D343 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 2N-5129 [1] FRAME ASSEM. (Top)  
2. 3L-5088 [8] CLIP  
3. 3S-7640 H HOSE 72"  
4. 2N-5132 [3] CLIP  
5. 2N-5128 [2] FRAME ASSEM. (Side)  
6. 0S-1617 C [14] BOLT  
7. 3B-4505 [126] LOCKWASHER  
8. 2H-3755 C [24] BOLT  
9. 2N-5130 [1] FRAME ASSEM. (Bottom)  
10. 1B-2714 [6] BOLT  
  3B-4504 [6] LOCKWASHER  
11. 0S-1618 C [80] BOLT  
12. 2N-5124 [2] SIDE ASSEM.  
13. 7S-0626 [2] SCREW  
  1B-2578 [2] NUT  
14. 2N-5123 [1] TANK ASSEM. (Bottom)  
15. 2N-5126 [4] WASHER  
16. 3L-1762 [6] GASKET  
17. 2N-5125 [1] CORE ASSEM.  
18. 3N-6370 [1] FLANGE ASSEM.  
19. 5B-1345 [2] CLIP  
20. 034-0901 C [6] CONNECTOR  
21. 2N-5122 [1] TANK ASSEM. (top)  
22. 4B-4276 C [6] WASHER  
23. 4B-3388 C [8] BOLT  
24. 1D-4716 C [88] NUT  
  C   INDICATES CHANGE
  H   ORDER BY THE INCH
 

#UEG0873S0108
 

1N-7337: PUMP GP-WATER

1N7337 WATER PUMP AND DRIVE GROUP
See Page 62 for Gasket Kits
c202917 UEG0873S
  For full view, you need register

Parts for your D343 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  0S-1591 [3] BOLT  
  3B-4506 [3] LOCKWASHER  
    (MOUNTED ON TIMING GEAR HOUSING)
  6F-5772 [1] SEAL  
  6B-1124 H [1] BEARING  
  4L-4039 [1] SPACER  
  5L-5092 [1] ADAPTER  
  2F-5721 H [1] BEARING  
  4H-9743 H [1] KEY  
  1L-8544 [1] NUT  
  3B-4618 H [1] COTTER PIN  
  0S-0355 [1] WASHER  
  1L-4775 [1] RING  
  4L-4043 [1] GEAR (50 TEETH)  
  1B-4203 [5] NUT  
  3B-4506 [5] LOCKWASHER  
  4L-4075 [1] GASKET  
  1S-0615 [1] KIT (REBUILD)  
    (CONSISTS OF PARTS MARKED H)
  0S-0532 [6] STUD  
  1D-4717 [6] NUT  
  3B-4506 [6] LOCKWASHER  
  8H-0273 [1] SEAL  
  2M-1538 [4] STUD  
  1D-4717 [4] NUT  
  3B-4506 [4] LOCKWASHER  
  5L-8202 H [1] IMPELLER  
  6L-2914 [1] COVER  
  3H-2018 H [1] NUT  
  3F-2771 H [1] COTTER PIN  
  3S-3535 [1] SEAL  
  5H-4342 [1] WASHER  
  7L-2067 H [1] SHAFT  
  2S-3966 [1] RING  
  9S-5168 [1] WASHER  
  [1] BELLOWS ASSEM.  
    (PARTS OF 4N4340 ASSEM.)
  4N-4340 C [1] SEAL ASSEM.  
  1L-8026 [6] GASKET  
  4L-9186 [1] HOUSING  
  7B-7129 [1] GASKET  
  1A-2029 [6] BOLT  
  3B-4506 [6] LOCKWASHER  
  5M-6214 [1] PLUG  
  2L-4051 [1] COVER  
  0L-1351 [2] BOLT  
  3B-4506 [2] LOCKWASHER  
  C   INDICATES CHANGE
 

#UEG0873S0109
 

1N-7503: AUXILIARY WATER PUMP AND DRIVE GROUP

1N7503 AUXILIARY WATER PUMP AND DRIVE GROUP
Only separate parts serviced. See Page 62 for Gasket Kits
AN ATTACHMENT
c127923 UEG0873S
  For full view, you need register

Parts for your D343 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 9M-7959 [4] CLAMP  
2. 6L-2279 [2] PLUG  
  6L-2280 [2] ROD  
3. 3H-6740 [4] BOLT  
  7F-7259 [4] LOCKWASHER  
4. 6L-4182 [2] ELBOW  
5. 4L-3833 [2] GASKET  
6. 1N-5304 Y [1] PUMP & DRIVE GROUP  
    (See Separate Illustration)
7. 6L-3932 [2] HOSE  
  Y   SEPARATE ILLUSTRATION
 

Information:

Engine News
Special Instruction
Retrofit Installation of Coolant Loss Sensor{1353, 1395, 7422, 7470}
Retrofit Installation of Coolant Loss Sensor{1353, 1395, 7422, 7470}
Tool Operating Manual
464-0265 Lifting Bracket Assembly{0374, 0599, 0629, 0632, 0700, 0708, 1353}
464-0265 Lifting Bracket Assembly{0374, 0599, 0629, 0632, 0700, 0708, 1353}
Service Magazine

Caterpillar Parts SIS Catalog D343 :

Truck sale:

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USD $9,850 
CAT D343

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Parker, Colorado 80138
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CAT D343

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