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3N2683 FRONT ACCESSORY DRIVE GROUP--Part 2 of 3--Type 2 Serial No. 73B1268-Up Part of 2N9507 Auxiliary Pump Arrangement listed on Page 81 G398


BASIC ENGINE
DRIVE GP-ACCESSORY
CYLINDER HEAD GP
CYLINDER BLOCK GP

GAS ENGINE G398 GAS ENGINE 73B
 G398 ENGINE 73B00906-UP UEG0611S G398 73B   (1963)

BASIC ENGINE

DRIVE GP-ACCESSORY
DRIVE GP-FRONT ACCESSORY
3N-2683 DRIVE GP-FRONT ACCESSORY
DRIVE GP-FRONT ACCESSORY
3N-2683 DRIVE GP-FRONT ACCESSORY
DRIVE GP-FRONT ACCESSORY
3N-2683 DRIVE GP-FRONT ACCESSORY
DRIVE GP-FRONT ACCESSORY
3N-2683 DRIVE GP-FRONT ACCESSORY
COVER GP-ACCESSORY DRIVE
5N-3374 COVER GP-ACCESSORY DRIVE
 

#UEG0611S0090
 

3N-2683: DRIVE GP-FRONT ACCESSORY

3N2683 FRONT ACCESSORY DRIVE GROUP--Part 2 of 3--Type 2
Serial No. 73B1268-Up
Part of 2N9507 Auxiliary Pump Arrangement listed on Page 81
c229401 UEG0611S
3N2683 DRIVE GP-FRONT ACCESSORY Parts scheme
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Parts for your G398 GAS ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 8N-1359 C [1] GEAR (25 teeth)  
2. 6F-7030 [6] BOLT  
  4L-3759 [3] LOCK  
3. 0S-1621 [14] BOLT  
4. 3H-7654 [16] WASHER  
5. 6L-4783 [4] BOLT  
6. 9S-5282 [4] WASHER  
7. 4L-3728 [1] SHAFT ASSEM.  
    (Includes)
  2H-5558 [1] DOWEL  
8. 0S-1587 [2] BOLT  
9. 3N-8589 [1] TUBE ASSEM.  
10. 7M-7260 LIQUID GASKET  
11. 1B-2790 [2] BOLT  
  3B-4505 [2] LOCKWASHER  
12. 3N-1271 [2] SHAFT ASSEM.  
    (Each Includes)
  2H-5558 [1] DOWEL  
13. 0S-0509 [2] BOLT  
14. 5L-5840 [4] WASHER (sealing)  
15. 5M-2894 [4] WASHER (steel)  
16. 3B-1915 [4] BOLT  
17. 3B-4506 [8] LOCKWASHER  
18. 0S-1594 [3] BOLT  
19. 0S-1571 [4] BOLT  
20. 1A-2029 [1] BOLT  
21. 8M-3175 [2] WASHER  
22. 4L-3407 [1] GEAR ASSEM. (71 teeth)  
    (Includes)
  5L-9143 [2] BEARING  
  C   INDICATES CHANGE
 

#UEG0611S0091
 

3N-2683: DRIVE GP-FRONT ACCESSORY

3N2683 FRONT ACCESSORY DRIVE GROUP--Part 3 of 3--Type 2
Serial No. 73B1268-Up
Part of 2N9507 Auxiliary Pump Arrangement listed on Page 81
c229402 UEG0611S
3N2683 DRIVE GP-FRONT ACCESSORY Parts scheme
  For full view, you need register

Parts for your G398 GAS ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 6H-1717 [2] BOLT  
2. 4L-8767 [1] LOCK  
3. 4L-3413 [1] WASHER  
4. 0S-1585 [5] BOLT  
5. 3H-7654 [5] WASHER  
6. 4L-3405 [1] GEAR ASSEM. (35 teeth)  
    (Includes)
  5L-2659 [2] BEARING  
7. 4L-3404 [2] WASHER  
8. 0L-1351 [4] BOLT  
  0L-1477 [2] LOCK  
9. 4L-3406 [1] GEAR ASSEM. (40 teeth)  
    (Includes)
  5L-2659 [2] BEARING  
10. 2N-9892 [1] PLATE  
  4L-3392 [1] GASKET  
11. 6L-2069 [1] GASKET (plate to housing)  
12. 8N-1365 C [1] GEAR (32 teeth)  
 

#UEG0611S0092
 

5N-3374: COVER GP-ACCESSORY DRIVE

5N3374 FRONT ACCESSORY DRIVE COVER GROUP
Serial No. 73B1147-Up
FOR USE WITH 3N2683 FRONT ACCESSORY DRIVE GROUP SHOWN ON
PAGES 33A, 33B, 33C, 33D and 33E. AN ATTACHMENT
c161193 UEG0611S
5N3374 COVER GP-ACCESSORY DRIVE Parts scheme
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Parts for your G398 GAS ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 8L-8570 [2] COVER  
  4L-3437 [2] GASKET  
2. 0S-0509 [4] BOLT 190.50 mm(.75 in.) long  
3. 3B-4506 [12] LOCKWASHER  
4. 3B-1915 [3] BOLT 34.93 mm(1.375 in.) long  
 

#UEG0611S0093
 

3N-2061: CYLINDER HEAD & VALVE GP

3N2061 CYLINDER HEAD AND VALVE MECHANISM GROUP--PART 1 of 2*R
Part Of 3N1162, 3N3370, 3N3342 & 3N3369 Engine Arrangements Listed On
Pages 7 Through 10
c227698 UEG0611S
3N2061 CYLINDER HEAD & VALVE GP Parts scheme
  For full view, you need register

Parts for your G398 GAS ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4L-3803 [12] BRACKET  
2. 4H-6716 [36] WASHER  
  1B-9917 [12] SPRING (Short)  
  6F-5034 [6] SPRING (Long)  
3. 3B-4621 [12] COTTER PIN  
4. 6H-3217 [6] SHAFT ASSEM.  
5. 4F-4585 [2] PLUG  
6. 2N-3598 [6] COVER  
7. 2N-3597 [6] SEAL  
8. 0S-1608 C [2] BOLT  
9. 8M-8509 [1] LOCK  
10. 2N-3553 [7] SEAL  
11. 8S-9089 [24] BOLT  
  3F-4550 [12] LOCK  
12. 2N-3227 C [6] BRACKET  
13. 5L-5486 [24] LIFTER ASSEM.  
14. 3N-1598 [1] ELBOW ASSEM.  
  5M-4987 [2] DOWEL  
15. 4L-7820 [24] ROD ASSEM.  
16. 7B-2420 [36] FERRULE  
  6L-7814 [36] SEAL  
17. 0L-1351 [12] BOLT  
  3B-4506 [12] LOCKWASHER  
18. 1B-4204 [24] NUT  
19. 1A-0744 [24] SCREW  
20. 4H-9811 [12] ARM ASSEM. (Exhaust)  
21. 9F-8254 [1] SOCKET  
22. 3F-7445 [1] BUSHING  
23. 4L-3855 [12] ARM ASSEM. (Intake)  
24. 9F-8254 [1] SOCKET  
25. 3F-7445 [1] BUSHING  
  C   INDICATES CHANGE
 

#UEG0611S0094
 

3N-2061: CYLINDER HEAD & VALVE GP

3N2061 CYLINDER HEAD AND VALVE MECHANISM GROUP-PART 2 of 2*R
Part Of 3N1162, 3N3370, 3N3342 & 3N3369 Engine Arrangements Listed On
Pages 7 Through 10. See Page 39B For Gasket Kit
c309759 UEG0611S
3N2061 CYLINDER HEAD & VALVE GP Parts scheme
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Parts for your G398 GAS ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4H-0945 [6] FITTING  
  4H-2495 [1] NUT  
  4H-2494 [1] SLEEVE  
2. 4L-8188 [12] STUD  
3. 1B-4205 [24] NUT  
4. 1F-3278 [6] FITTING  
  1F-1344 [1] NUT  
5. 4L-7892 [6] TUBE  
6. 1D-4623 C [96] BOLT  
  5H-1504 [96] WASHER  
7. 2N-9332 [6] HEAD ASSEM.  
    (EACH HEAD ASSEM. INCLUDES)
8. 1S-5738 [2] INSERT (EXHAUST)  
  4S-8906 A [2] INSERT .13mm(.005in.) OS  
  4S-8907 A [2] INSERT 2.5mm(.010in.) OS  
  5S-1757 [2] INSERT (INTAKE)  
  4S-8908 A [2] INSERT .13mm(.005in.) OS  
  4S-8909 A [2] INSERT 2.5mm(.010in.) OS  
9. 5H-7071 [8] DIRECTOR  
10. 2N-9299 [2] GUIDE (EXHAUST)  
  2N-9298 [2] GUIDE (INTAKE)  
11. 3B-0645 [8] PLUG  
12. 2N-9301 [2] VALVE (EXHAUST)  
  1W-8606 C [2] VALVE (INTAKE)  
13. 7N-7639 C [4] ROTATOR  
14. 9M-5350 [4] SPRING (OUTER)  
  9M-5349 [4] SPRING (INNER)  
15. 2A-4429 [8] LOCK  
16. 2N-9297 C [2] RETAINER  
17. 3N-1414 [4] SPACER  
18. 3F-9780 [12] WASHER  
  8F-4994 [12] SEAL  
19. 9F-7707 [24] RING  
20. 8F-8858 [24] BUTTON  
21. 3N-3220 [6] GASKET (COPPER)  
  6L-4497 [6] GASKET (PLAIN)  
22. 6B-6224 [48] FERRULE  
23. 6L-7813 [48] SEAL  
24. 4L-8189 [12] STUD  
25. 5B-2383 [12] NUT  
26. 1W-3062 C [2] RETAINER ASSEM.  
  A   NOT PART OF THIS ASSEM.
  C   INDICATES CHANGE
 

#UEG0611S0095
 

7C-5952: CYLINDER HEAD GP

7C5952 CYLINDER HEAD GP--PART 1 OF 2
c403042 UEG0611S
7C5952 CYLINDER HEAD GP Parts scheme
  For full view, you need register

Parts for your G398 GAS ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4L-3803 [12] BRACKET-SHAFT  
2. 4H-6716 [36] WASHER  
  1B-9917 [12] SPRING (SHORT)  
  6F-5034 [6] SPRING (LONG)  
3. 3B-4621 [12] PIN-COTTER  
4. 6H-3217 [6] SHAFT AS (EA. INCL)  
5. 4F-4585 [2] PLUG-CORE  
6. 2N-3598 [6] COVER-CYLINDER HEAD  
7. 2N-3597 [6] SEAL-VALVE COVER  
8. 0S-1608 [2] BOLT  
9. 8M-8509 [1] LOCK-NUT  
10. 2N-3553 [7] SEAL  
11. 8S-9089 [24] BOLT  
  3F-4550 [12] LOCK-NUT  
12. 2N-3227 [6] BRACKET-LIFT GUIDE  
13. 5L-5486 [24] LIFTER AS-VALVE  
14. 3N-1598 [1] ELBOW AS-GALLERY  
  5M-4987 [2] DOWEL  
15. 4L-7820 [24] ROD AS-PUSH  
16. 7B-2420 [36] FERRULE-DIRECTOR  
  6L-7814 [36] SEAL-DIRECTOR  
17. 0L-1351 [12] BOLT  
  3B-4506 [12] LOCKWASHER  
18. 1B-4204 [24] NUT-FULL  
19. 1A-0744 [24] SCREW-ROCKER ADJ  
20. 4H-9811 [12] ROCKER ARM AS-EXHAUST  
    (EACH INCLUDES)
21. 9F-8254 [1] SOCKET-ARMATURE  
22. 3F-7445 [1] BUSHING  
23. 4L-3855 [12] ROCKER ARM AS-INLET  
    (EACH INCLUDES)
24. 9F-8254 [1] SOCKET-ARMATURE  
25. 3F-7445 [1] BUSHING  
 

#UEG0611S0096
 

7C-5952: CYLINDER HEAD GP

7C5952 CYLINDER HEAD GP--PART 2 OF 2
7C5951-Page 35.02
c404662 UEG0611S
7C5952 CYLINDER HEAD GP Parts scheme
  For full view, you need register

Parts for your G398 GAS ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 7C-5951 Y [6] HEAD AS  
2. 4H-0945 [6] ELBOW  
    (EACH INCLUDES)
  4H-2495 [1] NUT  
  4H-2494 [1] SLEEVE-FITTING  
3. 4L-8188 [12] STUD-TAPERLOCK  
4. 1B-4205 [24] NUT  
5. 1F-3278 [6] FITTING  
    (EACH INCLUDES)
  1F-1344 [1] NUT  
6. 4L-7892 [6] TUBE-SHAFT OIL  
7. 1D-4623 [96] BOLT  
  5H-1504 [96] WASHER-HARD  
8. 3F-9780 [12] WASHER-COVER  
  8F-4994 [12] SEAL-O-RING  
9. 9F-7707 [24] RING-RETAINER  
10. 8F-8858 [24] BUTTON  
11. 3N-3220 [6] GASKET (COPPER)  
  6L-4497 [6] GASKET (PLAIN)  
12. 6B-6224 [48] FERRULE  
13. 6L-7813 [48] SEAL-FERRULE  
14. 4L-8189 [12] STUD-TAPERLOCK  
15. 2M-2570 [12] LOCKNUT  
  Y   SEPARATE ILLUSTRATION
 

#UEG0611S0097
 

7C-5951: HEAD AS

7C5951 HEAD AS
Part Of 7C5952 Cylinder Head
c406506 UEG0611S
7C5951 HEAD AS Parts scheme
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Parts for your G398 GAS ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 3N-1414 [4] SPACER  
2. 7N-7639 [4] ROTATOR-VALVE  
3. 7C-5950 [1] CYLINDER HEAD AS  
4. 2N-9299 [2] GUIDE-VALVE (EXHAUST)  
  2N-9298 [2] GUIDE-VALVE (INTAKE)  
5. 7C-5913 [2] INSERT (EXHAUST)  
  7C-7607 A [2] INSERT .13MM(.005IN)OS  
  7C-7608 A [2] INSERT .25MM(.010IN)OS  
  A [2] INSERT .51MM(.020IN)OS  
  A [2] INSERT .76MM(.030IN)OS  
  5S-1757 [2] INSERT (INTAKE)  
  4S-8908 A [2] INSERT .13MM(.005IN)OS  
  4S-8909 A [2] INSERT .25MM(.010IN)OS  
  7C-5377 A [2] INSERT .51MM(.020IN)OS  
  7C-5378 A [2] INSERT .76MM(.030IN)OS  
6. 2A-4429 [8] LOCK-RETAINER  
7. 2N-9297 [2] RETAINER-VALVE SPRING (INTAKE)  
8. 9M-5350 [4] SPRING (OUTER)  
9. 9M-5349 [4] SPRING (INNER)  
10. 5H-7071 [8] DIRECTOR-WATER  
11. 3B-0645 [8] PLUG-CUP  
12. 7C-5914 [2] VALVE-EXHAUST  
  1W-8606 [2] VALVE-INLET  
13. 1W-3062 [2] RETAINER AS  
  8N-7780 [1] SHIELD-OIL  
  A   NOT PART OF THIS GROUP
 

#UEG0611S0098
 

3N-2678: CYLINDER BLOCK & COVERS GP

3N2678 CYLINDER BLOCK AND COVERS GROUP--Side View-Part 1 of 2
Serial No. 73B906 to 73B927 inclusive. Part of 3N1162, 3N3370, 3N3342 & 3N3369 Engine Arrangements listed
on Pages 7 through 10. See Page 39 for Gasket Kits. Only separate parts serviced
c114425 UEG0611S
3N2678 CYLINDER BLOCK & COVERS GP Parts scheme
  For full view, you need register

Parts for your G398 GAS ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  1A-2223 [24] DOWEL  
    (PART OF 5L9583 ASSEM.)
  3B-0645 [2] PLUG  
    (USE AS REQUIRED)
  9S-1366 [2] BOLT  
  5L-2894 [7] BEARING  
    (PART OF 5L9583 ASSEM.)
  5F-9303 [2] COVER  
  1F-3131 [2] GASKET  
  3B-0551 [2] PLUG  
  1A-0168 [6] BOLT  
  3B-4508 [8] LOCKWASHER  
  9M-7269 [2] BOLT  
  3B-4508 [2] LOCKWASHER  
  4L-7562 [2] GASKET  
  0L-1351 [4] BOLT  
  3B-4506 [8] LOCKWASHER  
  0L-2061 [2] DOWEL (.875" LONG)  
  2B-2994 [2] DOWEL (1.50" LONG)  
    (PARTS OF BLOCK ASSEM. 5L9583)
  7F-7669 [1] GASKET  
  7F-7670 [1] COVER  
  0L-1351 [4] BOLT  
  4L-4653 [2] PLATE  
  1A-8537 [8] BOLT  
  3B-4510 [14] LOCKWASHER  
  8S-9092 [6] BOLT  
  2N-7224 [2] CAP ASSEM.  
    (PART OF 5L9583 ASSEM.)
  1A-9759 [4] DOWEL  
    (PART OF 2N7224 ASSEM.)
  5L-9583 [1] BLOCK ASSEM.  
  2N-5120 [14] STUD  
  3S-1356 [14] NUT  
    (PARTS OF 5L9583 ASSEM.)
  4L-6788 [96] STUD  
  2A-3348 [1] DOWEL  
  1A-2036 [6] DOWEL  
    (PARTS OF 5L9583 ASSEM.)
  2N-7194 [5] CAP  
    (PART OF 5L9583 ASSEM.)
  5H-4279 [4] PLUG  
  1H-8645 [2] SCREW  
  2A-3278 [2] GASKET  
    (PARTS OF 5L9583 ASSEM.)
  4L-7586 [1] GASKET  
  4L-3395 [2] DOWEL  
    (PART OF 5L9583 ASSEM.)
 

#UEG0611S0099
 

3N-2678: CYLINDER BLOCK & COVERS GP

3N2678 CYLINDER BLOCK AND COVERS GROUP--Front View-Part 2 of 2
Serial No. 73B906 to 73B927 inclusive. Part of 3N1162, 3N3370, 3N3342 & 3N3369 Engine Arrangements listed
on Pages 7 through 10. Only separate parts serviced
c114426 UEG0611S
3N2678 CYLINDER BLOCK & COVERS GP Parts scheme
  For full view, you need register

Parts for your G398 GAS ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  0S-1590 [2] BOLT  
  3B-4506 [2] LOCKWASHER  
  1A-1135 [4] BOLT  
  2A-4462 [2] LOCK  
  8L-4857 [6] COVER  
  1F-4419 [6] GASKET  
  0S-1594 [1] BOLT (1" LONG)  
  0S-0509 [68] BOLT (75" LONG)  
  3B-4506 [69] LOCKWASHER  
  6L-7815 [36] SEAL  
  1S-2587 [12] LINER  
  1A-9759 [8] DOWEL  
  0S-1594 [14] BOLT  
  3B-4506 [14] LOCKWASHER  
  2N-4518 [1] PLATE ASSEM.  
  2N-4516 [1] ADAPTER  
    (Part of 2N4518 Assem.)
  7F-5174 [1] FLANGE  
  1F-3131 [1] GASKET  
  1B-5174 [1] PLUG  
  0S-1588 [2] BOLT  
  3B-4506 [2] LOCKWASHER  
  1F-4418 [6] COVER  
  1F-9223 [6] GASKET  
  5F-0304 [1] PLUG (DRAIN)  
  5B-8932 [1] GASKET  
  0S-0509 [96] BOLT  
  3B-4506 [96] LOCKWASHER  
  6L-2787 [1] HOUSING (FLYWHEEL)  
 

Information:

Caterpillar Parts SIS Catalog G398 :

DRIVE GP-FRONT ACCESSORY
3N-2683 DRIVE GP-FRONT ACCESSORY
DRIVE GP-FRONT ACCESSORY
3N-2683 DRIVE GP-FRONT ACCESSORY
DRIVE GP-FRONT ACCESSORY
3N-2683 DRIVE GP-FRONT ACCESSORY
DRIVE GP-FRONT ACCESSORY
3N-2683 DRIVE GP-FRONT ACCESSORY
DRIVE GP-FRONT ACCESSORY
3N-2683 DRIVE GP-FRONT ACCESSORY
DRIVE GP-FRONT ACCESSORY
3N-2683 DRIVE GP-FRONT ACCESSORY
DRIVE GP-FRONT ACCESSORY
3N-2683 DRIVE GP-FRONT ACCESSORY
DRIVE GP-FRONT ACCESSORY
3N-2683 DRIVE GP-FRONT ACCESSORY
DRIVE GP-FRONT ACCESSORY
3N-2683 DRIVE GP-FRONT ACCESSORY
COVER GP-ACCESSORY DRIVE
5N-3374 COVER GP-ACCESSORY DRIVE
CYLINDER HEAD & VALVE GP
3N-2061 CYLINDER HEAD & VALVE GP
CYLINDER HEAD & VALVE GP
3N-2061 CYLINDER HEAD & VALVE GP
CYLINDER HEAD GP
7C-5952 CYLINDER HEAD GP
CYLINDER HEAD GP
7C-5952 CYLINDER HEAD GP
HEAD AS
7C-5951 HEAD AS
CYLINDER BLOCK & COVERS GP
3N-2678 CYLINDER BLOCK & COVERS GP

Truck sale:

1980 CAT G398
USD $50,000 
1980 CAT G398

Foley Equipment Company
Topeka Area, Kansas
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