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8N2743 OIL PUMP ASSEMBLY Serial No. 66B6889 To 66B8464 Inclusive Part Of 5N3798 Oil Pump Group Shown On Page 50B.02 D398




LUBRICATION SYSTEM

PUMP GP-ENGINE OIL
 

#UEG0633S0210
 

8N-2743: PUMP GP-ENGINE OIL

8N2743 OIL PUMP ASSEMBLY
Serial No. 66B6889 To 66B8464 Inclusive
Part Of 5N3798 Oil Pump Group Shown On Page 50B.02
c221813 UEG0633S
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Parts for your D398 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 5N-3800 [1] SHAFT ASSEM.  
    (Includes)
  4L-6764 [1] KEY  
2. 1N-9349 [1] SEAL  
3. 0L-1143 [4] BOLT  
4. 5M-2894 [16] WASHER  
5. 0T-0573 [1] BOLT  
6. 5N-3811 [1] PLATE  
7. 5N-3812 [1] GASKET  
8. 8N-1342 [1] COVER  
  5M-4987 [2] DOWEL (large)  
  1Y-2681 [2] DOWEL (small)  
9. 9S-4185 [1] PLUG  
  8L-2786 [1] SEAL  
10. 4B-7220 [3] BOLT  
11. 8H-3526 [9] WASHER 3.04 mm(.0096 in.) thick  
  5L-6267 [9] WASHER 1.27 mm(.050 in.) thick  
12. 6L-8811 [1] MANIFOLD ASSEM.  
    (Includes)
13. 4L-6766 [4] DOWEL  
14. 9S-4188 [3] PLUG  
  4K-1388 [3] SEAL  
15. 3P-0658 [2] SEAL  
16. 6L-8806 [1] MANIFOLD ASSEM.  
    (Includes)
17. 4L-6719 [1] BEARING  
18. 9S-1343 [2] PLUG  
19. 4L-3770 [1] RETAINER ASSEM.  
    (Includes)
20. 6F-0984 [1] DOWEL  
21. 5L-2649 [1] BEARING  
22. 0S-1588 [5] BOLT  
  4M-8974 [1] LOCK (2 hole)  
  5L-4949 [1] LOCK (5 hole)  
23. 5N-3806 [1] HOUSING  
    (Includes)
24. 5L-2652 [1] BEARING  
25. 4F-7226 [6] BOLT  
26. 5N-3810 [1] GASKET  
27. 0L-2070 [2] BOLT  
28. 9S-4190 [1] PLUG  
  7L-2224 [1] SEAL  
29. 9S-4182 [1] PLUG  
  033-5853 [1] SEAL  
30. 0S-1590 [5] BOLT  
31. 4L-6796 [2] GEAR ASSEM.  
    (Each Includes)
32. 4L-5804 [2] BEARING  
33. 6L-8858 [2] SHAFT  
34. 1A-2029 [4] BOLT  
35. 9S-1343 [1] PLUG  
 

#UEG0633S0211
 

1W-1882: PUMP GP-ENGINE OIL

1W1882 OIL PUMP GROUP-ONE SECTION GEAR
Serial No. 66B8465 To 66B9489 Inclusive
Part Of 5N3798 Oil Pump Group Shown On Page 50B.03
c233239 UEG0633S
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Parts for your D398 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 1W-1880 [1] SHAFT ASSEM.  
2. 1N-9349 [1] SEAL  
3. 0L-1143 [4] BOLT  
4. 5M-2894 [16] WASHER  
5. 0T-0573 [1] BOLT  
6. 5N-3811 [1] PLATE  
7. 5N-3812 [1] GASKET  
8. 8N-1342 [1] COVER  
  5M-4987 [2] DOWEL (large)  
  1Y-2681 [2] DOWEL (small)  
9. 9S-4185 [1] PLUG  
  8L-2786 [1] SEAL  
10. 4B-7220 [3] BOLT  
11. 8H-3526 [9] WASHER 3.04 mm(.0096 in.) thick  
  5L-6267 [9] WASHER 1.27 mm(.050 in.) thick  
12. 6L-8811 [1] MANIFOLD ASSEM.  
    (Includes)
13. 4L-6766 [4] DOWEL  
14. 9S-4188 [3] PLUG  
  4K-1388 [3] SEAL  
15. 3P-0658 [2] SEAL  
16. 6L-8806 [1] MANIFOLD ASSEM.  
    (Includes)
17. 5L-2648 [1] BEARING  
18. 9S-1343 [2] PLUG  
19. 4L-3770 [1] RETAINER ASSEM.  
    (Includes)
20. 6F-0984 [1] DOWEL  
21. 5L-2649 [1] BEARING  
22. 0S-1588 [5] BOLT  
  4M-8974 [1] LOCK (2 hole)  
  5L-4949 [1] LOCK (5 hole)  
23. 5N-3806 [1] HOUSING  
    (Includes)
24. 5L-2652 [1] BEARING  
25. 4F-7226 [2] BOLT  
26. 5N-3810 [1] GASKET  
27. 0L-2070 [2] BOLT  
28. 9S-4190 [1] PLUG  
  7L-2224 [1] SEAL  
29. 9S-4182 [1] PLUG  
  033-5853 [1] SEAL  
30. 0S-1590 [5] BOLT  
31. 1W-1877 [2] GEAR ASSEM.  
    (Each Includes)
32. 5L-2651 [2] BEARING  
33. 6L-8858 [2] SHAFT  
34. 1A-2029 [4] BOLT  
35. 9S-1343 [1] PLUG  
 

#UEG0633S0212
 

5N-7894: PUMP GP-ENGINE OIL GEAR

5N7894 PUMP GP-ENGINE OIL GEAR
Engine Oil (One Section Gear)-S/N 66B9490-Up
Part Of 5N7895 Oil Pump
c514148 UEG0633S
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Parts for your D398 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 1W-1880 [1] SHAFT AS-PUMP DRIVE  
2. 1N-9349 [1] SEAL-LIP TYPE  
3. 0L-1143 [4] BOLT  
4. 5M-2894 [16] WASHER  
5. 0T-0573 [1] BOLT  
6. 5N-3811 [1] PLATE  
7. 5N-3812 [1] GASKET  
8. 8N-1342 [1] COVER  
  5M-4987 [2] DOWEL (LARGE)  
  1Y-2681 [2] DOWEL (SMALL)  
9. 9S-4185 [1] PLUG-O-RING  
  3K-0360 [1] SEAL-O-RING  
10. 4B-7220 [3] BOLT  
11. 5P-8244 [9] WASHER 2.5MM(.098IN)THK  
  5L-6267 [9] WASHER 1.27MM(.05IN)THK  
12. 5N-7882 [1] MANIFOLD AS  
13. 4L-6766 [4] DOWEL-HOLLOW  
14. 5N-8175 [1] PLUG-O-RING  
  2S-4078 [1] SEAL-O-RING  
15. 3P-0658 [2] SEAL-O-RING  
16. 5N-4408 C [1] MANIFOLD AS  
17. 5L-2648 [1] BEARING  
18. 9S-1343 [1] PLUG-CUP  
19. 4L-3770 [1] RETAINER AS-BEARING  
20. 6F-0984 [1] DOWEL  
21. 5L-2649 [1] BEARING-DRIVE GEAR  
22. 0S-1588 [5] BOLT  
23. 5N-3806 [1] HOUSING AS  
24. 5L-2652 [1] BEARING  
25. 4F-7226 [6] BOLT  
26. 5N-3810 [1] GASKET  
27. 0L-2070 [2] BOLT  
28. 9S-4190 [1] PLUG-0-RING  
  2M-9780 [1] SEAL-O-RING  
29. 9S-4182 [1] PLUG  
  3J-7354 [1] SEAL-O-RING  
30. 0S-1590 [5] BOLT  
31. 1W-1877 [2] GEAR AS-IDLER (EA INCLS)  
32. 5L-2651 [2] BEARING  
33. 6L-8858 [2] SHAFT-PUMP IDLER  
34. 1A-2029 [4] BOLT  
35. 9S-1343 [1] PLUG-CUP  
36. 2S-2781 [1] PLUNGER-RELIEF  
  4W-1810 [1] SPRING-BYPASS  
37. 8J-8559 [1] PLUG  
  7M-8485 [1] SEAL-O-RING  
38. 9S-4191 [2] PLUG-O-RING  
  3J-1907 [2] SEAL  
39. 6V-3510 [1] ADAPTER-THREAD  
40. 4K-1388 [3] SEAL-O-RING  
41. 2S-2251 [1] SEAL-O-RING  
42. 4F-8965 [2] BOLT  
43. 9S-4188 [2] PLUG-O-RING  
44. 4M-8974 [1] LOCK (2 HOLE)  
  5L-4949 [1] LOCK (5 HOLE)  
  C   CHANGE FROM PREVIOUS TYPE
 

#UEG0633S0213
 

8L-5245: BASE GP-OIL PAN

8L5245 OIL PAN BASE GROUP-TOP VIEW
Serial No. 66B3561 To 66B4180 Inclusive
c115565 UEG0633S
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Parts for your D398 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  C [1] GASKET  
  C [1] BOLT  
  [1] CAP ASSEM  
  [1] TUBE ASSEM.  
  [1] GASKET  
  [1] OIL PAN BASE ASSEM.  
  [2] PLUNGER ASSEM.  
  [1] COVER  
  [1] GASKET  
  [8] BOLT  
  [8] LOCKWASHER  
  [3] LOCK  
  [6] BOLT  
  [2] PLUG  
  [1] BELL  
  [4] BOLT  
  [2] LOCK  
  [4] WASHER  
  [1] GASKET  
  C [11] BOLT  
  [1] COVER  
  [1] SCREEN ASSEM.  
  [2] GASKET  
  [1] BOLT  
  [1] BOLT  
  C   INDICATES CHANGE
 

#UEG0633S0214
 

8L-5245: BASE GP-OIL PAN

8L5245 OIL PAN BASE GROUP-TOP VIEW
Serial No. 66B4181 To 66B5993 Inclusive
c151877 UEG0633S
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Parts for your D398 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  8L-5457 [1] GASKET  
  2N-9841 [1] BOLT  
  4M-6953 C [1] WASHER  
  4H-5440 [1] COVER  
  8L-8418 [1] TUBE ASSEM.  
  7L-3111 [1] GASKET  
  3N-6361 C [1] OIL PAN BASE ASSEM.  
  4L-8661 [2] PLUNGER ASSEM.  
  7L-4447 [1] CAP ASSEM.  
  7L-3111 [1] GASKET  
  0S-1594 [8] BOLT  
  3B-4506 [8] LOCKWASHER  
  8F-8682 [3] LOCK  
  0S-1616 [6] BOLT  
  4B-8586 [2] PLUG  
  6L-7204 [1] BELL  
  0S-1588 [4] BOLT  
  7B-9457 [2] LOCK  
  5M-2894 [4] WASHER  
  3N-9075 C [1] GASKET  
  0S-1627 [11] BOLT  
  6L-7205 [1] COVER  
  4F-3517 [1] SCREEN ASSEM.  
  5B-6031 [2] GASKET  
  0S-1627 C [1] BOLT  
  0S-1627 C [1] BOLT  
  C   INDICATES CHANGE
 

#UEG0633S0215
 

5N-2034: PAN GP-OIL

5N2034 OIL PAN GROUP-PART 1 OF 2
Serial No. 66B5994 To 66B9489 Inclusive
c228520 UEG0633S
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Parts for your D398 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 3N-6361 [1] BASE ASSEM.  
2. 4L-8661 [2] PLUNGER ASSEM.  
3. 7L-4447 [1] CAP ASSEM.  
4. 8L-8418 [1] TUBE ASSEM.  
5. 7L-3111 [2] GASKET  
6. 8L-5457 [1] GASKET  
7. 0S-1616 [6] BOLT  
  8F-8682 [3] LOCK  
8. 6L-7204 [1] BELL  
9. 0S-1588 [4] BOLT  
  5M-2894 [4] WASHER  
10. 7B-9457 [2] LOCK  
11. 3N-9075 [1] GASKET  
12. 0S-1627 [13] BOLT  
13. 0S-1594 [8] BOLT  
  3B-4506 [8] LOCKWASHER  
14. 4H-5440 [1] COVER  
15. 2N-9841 [1] BOLT  
  4M-6953 [1] WASHER  
 

#UEG0633S0216
 

5N-2034: PAN GP-OIL

5N2034 OIL PAN GROUP-PART 2 OF 2
Serial No. 66B5994 To 66B9489 Inclusive
c228521 UEG0633S
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Parts for your D398 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 6V-1897 C [2] PLUG  
2. 5N-3860 [1] PLATE  
3. 0L-1351 [2] BOLT  
4. 5M-2894 [6] WASHER  
5. 5N-1951 [1] TEE  
6. 3J-5389 [3] PLUG  
7. 5N-3859 [1] CLAMP  
8. 0S-1571 [2] BOLT  
  0S-2185 [2] SPACER  
9. 3N-7792 [1] TUBE  
10. 1A-2029 C [4] BOLT  
  3B-4506 [4] LOCKWASHER  
11. 3P-0649 [1] SEAL  
12. 2N-7479 [1] HOUSING  
  3P-0656 [1] SEAL  
13. 2N-8519 [1] GUIDE  
14. 3P-0648 [1] SEAL  
15. 3N-4875 [1] SPRING  
16. 4L-8138 [1] PISTON  
17. 3P-0650 [2] SEAL  
18. 3N-7793 [1] CONNECTOR  
19. 4B-2661 [1] PLUG  
20. 6L-7205 [1] COVER  
  4F-3517 [1] SCREEN ASSEM.  
  5B-6031 [2] GASKET  
  C   INDICATES CHANGE
 

#UEG0633S0217
 

8L-5245: BASE GP-OIL PAN

8L5245 OIL PAN BASE GROUP
Serial No. 66B9490-Up
c182761 UEG0633S
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Parts for your D398 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  8L-5457 [1] GASKET  
  2N-9841 [1] BOLT  
  4M-6953 [1] WASHER  
  4H-5440 [1] COVER  
  7L-3111 [1] GASKET  
  5N-8466 C [1] OIL PAN BASE ASSEM  
  4L-8661 [2] PLUNGER ASSEM  
  7L-4447 [1] CAP ASSEM.  
  8L-8418 [1] TUBE ASSEM.  
  7L-3111 [1] GASKET  
  0S-1594 [8] BOLT  
  3B-4506 [8] LOCKWASHER  
  8F-8682 [3] LOCK  
  0S-1616 [6] BOLT  
  6V-1897 C [2] PLUG  
  6L-7204 [1] BELL  
  1A-2029 C [4] BOLT  
  7B-9457 [2] LOCK  
  5M-2894 [4] WASHER  
  3N-9075 [1] GASKET  
  0S-1617 [13] BOLT  
  5P-8248 C [13] WASHER  
  6L-7205 [1] COVER  
  4F-3517 [1] SCREEN ASSEM.  
  5B-6031 [2] GASKET  
  3J-5389 C [1] PLUG  
    (Use as Required)
  C   INDICATES CHANGE
 

#UEG0633S0218
 

3N-1324: COOLER & LINES GP

3N1324 COOLER AND LINES GP-ENGINE OIL-PART 1 OF 2
S/N 66B3561-3633
c173475 UEG0633S
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Parts for your D398 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 3J-5389 [6] PLUG  
2. 1A-2029 [10] BOLT  
3. 3B-4506 [13] LOCKWASHER  
4. 3N-1321 [1] ELBOW ASSEM.  
5. 3N-1322 [1] COUPLING ASSEM.  
  3N-1372 [1] SEAL ASSEM.  
6. 3P-0651 [2] SEAL  
7. 2N-3553 [1] SEAL  
8. 3N-2422 [1] BRACKET  
9. 0S-1621 [1] BOLT  
  1D-4719 [1] NUT  
  3B-4508 [1] LOCKWASHER  
10. 1D-4586 [4] BOLT  
  3B-4510 [4] LOCKWASHER  
11. 6F-0295 [1] CLIP  
12. 3N-2414 [1] TUBE ASSEM.  
13. 3P-0650 [2] SEAL  
14. 2N-4541 C [12] TUBE ASSEM. (Piston Cooling Jet)  
  1S-6250 [1] DOWEL  
15. 0S-1588 [12] BOLT  
  0L-0364 [12] LOCK  
16. 3P-0656 [2] SEAL  
17. 3B-1915 [3] BOLT  
18. 2N-1487 [1] TUBE ASSEM.  
19. 3P-0655 [1] SEAL  
20. 3P-0649 [2] SEAL  
21. 2N-1491 [1] TUBE ASSEM.  
22. 4L-7561 [1] CORE ASSEM.  
23. 4B-2661 [1] PLUG  
24. 1N-9930 [1] TEE  
25. 4H-9027 [1] PLUG  
26. 4L-8137 [1] TUBE ASSEM.  
27. 2N-7479 [1] HOUSING  
28. 6L-6495 [1] SPRING  
29. 2N-8519 [1] GUIDE  
30. 3P-0648 [1] SEAL  
31. 4L-8138 [1] PISTON  
  C   INDICATES CHANGE
 

#UEG0633S0219
 

3N-1324: COOLER & LINES GP

3N1324 COOLER AND LINES GP-ENGINE OIL-PART 2 OF 2
S/N 66B3561-3633
c114420 UEG0633S
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Parts for your D398 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. [3] BOLT  
2. [12] LOCKWASHER  
3. [2] BOLT  
4. [6] LOCK  
5. [1] TUBE ASSEM.  
6. [2] FLANGE  
7. [1] SPACER  
8. [1] SUPPORT  
9. [5] TUBE ASSEM.  
10. [6] RING  
11. [6] SEAL  
12. [10] BOLT  
13. [6] GASKET  
14. [1] GASKET  
15. [4] BOLT  
16. [1] PLUG  
17. [1] ELBOW  
18. [14] BOLT  
19. [19] LOCKWASHER  
20. [2] GASKET  
21. [1] PLUG  
22. [1] BOLT (1.75" Long)  
23. [1] BOLT (2.25" Long)  
24. [1] BOLT  
25. [1] PLATE  
26. [1] BOLT  
27. [2] NUT  
28. [1] BOLT  
29. [2] BOLT  
  [2] SPACER  
30. [3] BOLT  
31. [1] TUBE ASSEM.  
32. [2] SEAL  
33. [2] GASKET  
 

Information:

Engine News
Special Instruction
Installation Of Replacement Parts For 3N7722, 8N2744, 1W1872, 1W1873, 1W1881 and 1W1882 Engine Oil Pump Groups{1304}
Installation Of Replacement Parts For 3N7722, 8N2744, 1W1872, 1W1873, 1W1881 and 1W1882 Engine Oil Pump Groups{1304}
Specifications
Oil Pump<BR> (Two Section 5L3022)
D399, G399, D398, G398, D379, G379 ENGINES
Lubricating Oil Pressure Regulating Valve
D399, G399, D398, G398, D379, G379 ENGINES
Prelube Oil Pump And Motor; (Early Type)
D399, G399, D398, G398, D379, G379 ENGINES
Oil Pump Relief Valve
D379, D398, D399 INDUSTRIAL & MARINE ENGINES
Engine Oil Pressure
D379, D398, D399 INDUSTRIAL & MARINE ENGINES
Sending Units For Oil Pressure
D379, D398, D399 INDUSTRIAL & MARINE ENGINES
Information Release Memo
APPEARANCE CHANGE ON REMAN SHORT BLOCKS
APPEARANCE CHANGE ON REMAN SHORT BLOCKS
Disassembly and Assembly
Oil Pressure Relief Valve
D379, D398, D399 INDUSTRIAL & MARINE ENGINES
Oil Pump
D379, D398, D399 INDUSTRIAL & MARINE ENGINES
Prelubrication Oil Pump (D399)
D379, D398, D399 INDUSTRIAL & MARINE ENGINES
Service Magazine

Caterpillar Parts SIS Catalog D398 :

Truck sale:

 
95,000 
Caterpillar D398, Construction
- Industrial engines
LOUISIANA CAT POWER SYSTEMS
95,000 
Caterpillar D398, Construction
- Industrial engines
LOUISIANA CAT POWER SYSTEMS
USD $18,000 
CAT D398

Contractor Sales
Pocatello, Idaho
 
$95,000 USD 
CATERPILLAR D398 1978
- INDUSTRIAL
LOUISIANA CAT POWER SYSTEMS
5415 E. Broad St. - Lake Charles - Lou
$30,000 USD 
CATERPILLAR D398 1972
- STATIONARY GENERATOR SETS
HOLT OF CALIFORNIA - POWER SYSTEMS
- - United States
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