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8N9642 FRONT HOUSING COVER GROUP SERIAL NO. 24Z1 TO 24Z990 INCLUSIVE 3512 GEN SET ENGINE


BASIC ENGINE
HOUSING GP-FRONT
GEAR GP
DRIVE GP-AUXILIARY
DRIVE GP-ACCESSORY

GEN SET ENGINE 3512 GEN SET ENGINE 24Z
 3512 GENERATOR SET ENGINE 24Z00001-01316 SEBP1281 3512 24Z   (1981)

BASIC ENGINE

HOUSING GP-FRONT
HOUSING GP-FRONT
8N-8111 HOUSING GP-FRONT
HOUSING GP-FRONT
8N-8111 HOUSING GP-FRONT
COVER GP-FRONT HOUSING
8N-9642 COVER GP-FRONT HOUSING
COVER GP-FRONT HOUSING
8N-9642 COVER GP-FRONT HOUSING
 

#SEBP12810070
 

8N-9642: COVER GP-FRONT HOUSING

8N9642 FRONT HOUSING COVER GROUP
SERIAL NO. 24Z1 TO 24Z990 INCLUSIVE
c228882 SEBP1281
8N9642 COVER GP-FRONT HOUSING Parts scheme
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Parts for your 3512 GEN SET ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 3P-1896 [2] PLUG  
2. 1A-2029 [20] BOLT  
  5M-2894 [20] WASHER  
3. 7N-4951 [2] COVER  
4. 1T-0132 [2] SEAL  
5. 3B-8453 [2] SEAL  
6. 2M-4453 [2] SEAL  
7. 7N-4952 [2] COVER  
8. 8M-5255 [3] SEAL  
9. 8N-9658 [1] PLUG  
10. 0L-1329 [2] BOLT  
11. 0S-1571 [1] BOLT  
 

#SEBP12810071
 

8N-9642: COVER GP-FRONT HOUSING

8N9642 FRONT HOUSING COVER GROUP
SERIAL NO. 24Z991-UP
c485004 SEBP1281
8N9642 COVER GP-FRONT HOUSING Parts scheme
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Parts for your 3512 GEN SET ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 3P-1896 B [2] PLUG-CUP  
2. 1A-2029 C [27] BOLT  
3. 7N-4951 [2] COVER  
4. 1T-0132 [2] SEAL-O-RING  
5. 3B-8453 [2] SEAL-O-RING  
6. 2M-4453 [2] SEAL-O-RING  
7. 7N-4952 [2] COVER  
8. 8M-5255 [3] SEAL-O-RING  
9. 8N-9658 [1] PLUG  
10. 0L-1329 [2] BOLT  
11. 1C-2251 [1] BOLT  
  5R-7136 [1] WASHER-SEALING (1.27MM THK)  
12. 2W-5285 C [1] COVER  
13. 8N-9885 C [1] GASKET-DRIVE HOUSING  
14. 5M-2894 C [28] WASHER (2.5MM THK)  
  B   USE AS REQUIRED
  C   CHANGE FROM PREVIOUS TYPE
 

#SEBP12810072
 

8N-7174: GEAR GP-FRONT

8N7174 FRONT TIMING GEAR GROUP
SERIAL NO. 24Z1 TO 24Z721 INCLUSIVE
c231233 SEBP1281
8N7174 GEAR GP-FRONT Parts scheme
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Parts for your 3512 GEN SET ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 3B-8453 [1] SEAL  
2. 7N-5263 [1] ADAPTER ASSEM. (oil pump)  
    (Includes)
3. 7N-5244 [1] BEARING  
4. 7N-5244 C [2] WASHER  
5. 4B-3388 C [4] BOLT  
6. 9M-1974 C [4] WASHER  
7. 0S-1594 [7] BOLT  
8. 7N-5240 [1] WASHER  
9. 7N-2047 [1] DOWEL  
10. 3S-1307 [12] BOLT  
11. 8N-6645 [1] GEAR (92 teeth)  
12. 7N-5253 [1] SHAFT  
13. 8M-5255 [2] SEAL  
14. 2B-2006 [2] BOLT  
15. 0T-0065 [1] BOLT  
16. 7N-5245 [1] ADAPTER ASSEM. (water pump)  
    (Includes)
17. 7N-5244 [1] BEARING  
18. 6K-3771 [12] BOLT  
19. 7N-5250 [1] GEAR (69 teeth)  
20. 7N-5241 [1] GEAR ASSEM. (53 teeth)  
    (Includes)
21. 7N-5243 [1] BEARING  
22. 7N-5239 [1] SHAFT ASSEM.  
    (Includes)
23. 2F-4547 [1] DOWEL  
24. 1T-0132 [1] SEAL  
  C   INDICATES CHANGE
 

#SEBP12810073
 

8N-7174: GEAR GP-FRONT

8N7174 FRONT GEAR GROUP
SERIAL NO. 24Z722-UP
c303551 SEBP1281
8N7174 GEAR GP-FRONT Parts scheme
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Parts for your 3512 GEN SET ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 3B-8453 [1] SEAL-O-RING  
2. 7N-5263 [1] ADAPTER AS-PUMP  
3. 7N-5244 [1] BEARING-SLEEVE  
4. 7N-5246 [2] WASHER-THRUST  
5. 4B-3388 [4] BOLT  
6. 9M-1974 [4] WASHER  
7. 0S-1594 [7] BOLT  
8. 2W-7585 C [1] WASHER-THRUST  
9. 7N-2047 [1] DOWEL  
10. 3S-1307 [12] BOLT-12 POINT HEAD  
11. 8N-6645 [1] GEAR-CRANKSHAFT (92 TEETH)  
12. 7N-5253 [1] SHAFT  
13. 8M-5255 [2] SEAL-O-RING  
14. 2B-2006 [2] BOLT  
15. 0T-0065 [1] BOLT  
16. 7N-5245 [1] ADAPTER AS-PUMP  
17. 7N-5244 [1] BEARING-SLEEVE  
18. 6K-3771 [12] BOLT-12 POINT HEAD  
19. 7N-5250 [1] GEAR-PUMP DRIVE (69 TEETH)  
20. 7N-5241 [1] GEAR AS-IDLER (53 TEETH)  
21. 7N-5243 [1] BEARING-SLEEVE  
22. 7N-5239 [1] SHAFT AS-PUMP DRIVE  
23. 2F-4547 [1] PIN-DOWEL  
24. 1T-0132 [1] SEAL-O-RING  
  C   CHANGE FROM PREVIOUS TYPE
 

#SEBP12810074
 

8N-7500: CHART-AUXILIARY DRIVE

8N7500 AUXILIARY DRIVE CHART-GEARS & INSTALLATION INFORMATION
AN ATTACHMENT
c235629 SEBP1281
8N7500 CHART-AUXILIARY DRIVE Parts scheme
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Parts for your 3512 GEN SET ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
    SEE CHART
 

#SEBP12810075
 

7N-4871: DRIVE GP-ACCESSORY

7N4871 ACCESSORY DRIVE GROUP-UPPER R.H.MOUNTED
c231232 SEBP1281
7N4871 DRIVE GP-ACCESSORY Parts scheme
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Parts for your 3512 GEN SET ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 6H-1717 [2] BOLT  
2. 5P-8245 [2] WASHER  
3. 8M-1279 [1] COVER-PROTECTIVE  
4. 7J-8114 [1] GASKET  
5. 7N-5743 [1] ADAPTER AS  
6. 7N-5244 [1] BEARING-SLEEVE  
7. 8M-5255 [1] SEAL-O-RING  
8. 7N-5875 [1] GEAR-AUXILIARY DRIVE (RH-63 TEETH)  
9. 7N-5874 [1] SHAFT-AUXILIARY DRIVE  
10. 2B-2695 C [4] BOLT  
11. 9M-1974 C [4] WASHER  
12. 7N-7539 C [2] WASHER-THRUST  
13. 1T-0132 [1] SEAL-O-RING  
14. 7N-5279 [1] ADAPTER AS  
15. 7N-5244 [1] BEARING-SLEEVE  
16. 0S-1594 [6] BOLT  
17. 9F-2247 C [2] PLUG  
18. 3B-8453 [1] SEAL-O-RING  
19. 6K-3772 [12] BOLT-12 POINT HEAD  
20. 7N-5248 [1] GEAR-AUXILIARY DRIVE (LH-63 TEETH)  
21. 5P-2546 [12] BOLT-12 POINT HEAD  
22. 0L-1351 [4] BOLT  
23. 4D-0514 [1] PLUG-PIPE  
  2M-4453 [1] SEAL-O-RING  
  C   CHANGE FROM PREVIOUS TYPE
 

#SEBP12810076
 

8N-9166: DRIVE GP-ACCESSORY

8N9166 ACCESSORY DRIVE GROUP-UPPER L.H.MOUNTED
FOR USE WITH 8N9167 ACCESSORY DRIVE GROUP SHOWN ON PAGE 32
REFER TO CHART SHOWN ON PAGE 29 FOR USAGE. AN ATTACHMENT
c229245 SEBP1281
8N9166 DRIVE GP-ACCESSORY Parts scheme
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Parts for your 3512 GEN SET ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 7N-5279 [1] ADAPTER AS  
2. 7N-5244 [1] BEARING-SLEEVE  
3. 7N-8374 [2] COVER-DRIVE OPENING  
4. 5F-3106 [2] SEAL-O-RING  
5. 0S-1592 [4] BOLT  
6. 5P-8247 [4] WASHER-HARD  
7. 7N-7539 [2] WASHER-THRUST  
8. 9F-2247 [2] PLUG  
9. 3B-8453 [1] SEAL-O-RING  
10. 0S-1594 [6] BOLT  
11. 1T-0132 [1] SEAL-O-RING  
12. 7N-5874 [1] SHAFT-AUXILIARY DRIVE  
13. 7N-5248 [1] GEAR-AUXILIARY DRIVE (LH-63 TEETH)  
14. 7N-5875 [1] GEAR-AUXILIARY DRIVE (RH-63 TEETH)  
15. 8M-5255 [1] SEAL-O-RING  
16. 1T-0765 [6] BOLT  
17. 8N-8210 [1] ADAPTER AS  
18. 7N-5244 [1] BEARING-SLEEVE  
19. 6K-3772 [12] BOLT-12 POINT HEAD  
20. 5P-2546 [12] BOLT-12 POINT HEAD  
21. 2B-2695 [4] BOLT  
22. 9M-1974 [4] WASHER  
23. 4D-0514 [2] PLUG-PIPE  
24. 2M-4453 [1] SEAL-O-RING  
 

#SEBP12810077
 

8N-9167: DRIVE GP-ACCESSORY

8N9167 ACCESSORY DRIVE GROUP-LOWER L.H.MOUNTED-TYPE 1
REFER TO CHART SHOWN ON PAGE 29 FOR USAGE. AN ATTACHMENT
c229246 SEBP1281
8N9167 DRIVE GP-ACCESSORY Parts scheme
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Parts for your 3512 GEN SET ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 7N-5279 [1] ADAPTER ASSEM.  
    (Includes)
2. 7N-5244 [1] BEARING  
3. 7N-8374 [2] COVER  
4. 5F-3106 [2] SEAL  
5. 0S-1592 [4] BOLT  
6. 5P-8247 [4] WASHER  
7. 7N-7539 [2] WASHER  
8. 9F-2247 [2] PLUG  
9. 3B-8453 [1] SEAL  
10. 0S-1594 [6] BOLT  
11. 1T-0132 [1] SEAL  
12. 7N-5874 [1] SHAFT  
13. 7N-5250 [1] GEAR (69 teeth)  
14. 6K-3771 B [12] BOLT  
15. 8M-5255 [2] SEAL  
16. 1T-0765 [6] BOLT  
17. 8N-8210 [1] ADAPTER ASSEM.  
    (Includes)
18. 7N-5244 [1] BEARING  
19. 0T-0065 [1] BOLT  
20. 2B-2006 [2] BOLT  
21. 7N-5253 [1] SHAFT  
22. 7N-5241 [1] GEAR ASSEM. (Idler)  
    (Includes)
23. 7N-5243 [1] BEARING  
24. 2B-2695 [4] BOLT  
25. 9M-1974 [4] WASHER  
26. 7N-5240 [1] WASHER  
27. 7N-2047 [1] DOWEL  
28. 2M-4453 [1] SEAL  
29. 4D-0514 [2] PLUG  
  B   USE AS REQUIRED
 

#SEBP12810078
 

8N-9167: DRIVE GP-ACCESSORY

8N9167 ACCESSORY DRIVE GROUP-LOWER L.H.MOUNTED-TYPE 2
REFER TO CHART SHOWN ON PAGE 29 FOR USAGE. AN ATTACHMENT
c303549 SEBP1281
8N9167 DRIVE GP-ACCESSORY Parts scheme
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Parts for your 3512 GEN SET ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 7N-5279 [1] ADAPTER AS  
2. 7N-5244 [1] BEARING-SLEEVE  
3. 7N-8374 [2] COVER-DRIVE OPENING  
4. 5F-3106 [2] SEAL-O-RING  
5. 0S-1592 [4] BOLT  
6. 5P-8247 [4] WASHER-HARD  
7. 7N-7539 [2] WASHER-THRUST  
8. 9F-2247 [2] PLUG  
9. 3B-8453 [1] SEAL-O-RING  
10. 0S-1594 [6] BOLT  
11. 1T-0132 [1] SEAL-O-RING  
12. 7N-5874 [1] SHAFT-AUXILIARY DRIVE  
13. 7N-5250 [1] GEAR-PUMP DRIVE (69 TEETH)  
14. 6K-3771 B [12] BOLT-12 POINT HEAD  
15. 8M-5255 [2] SEAL-O-RING  
16. 1T-0765 [6] BOLT  
17. 8N-8210 [1] ADAPTER AS  
18. 7N-5244 [1] BEARING-SLEEVE  
19. 0T-0065 [1] BOLT  
20. 2B-2006 [2] BOLT  
21. 7N-5253 [1] SHAFT  
22. 7N-5241 [1] GEAR AS-IDLER (53 TEETH)  
23. 7N-5243 [1] BEARING-SLEEVE  
24. 2B-2695 [4] BOLT  
25. 9M-1974 [4] WASHER  
26. 2W-7585 C [1] WASHER-THRUST  
27. 7N-2047 [1] DOWEL  
28. 2M-4453 [1] SEAL-O-RING  
29. 4D-0514 [2] PLUG-PIPE  
  B   USE AS REQUIRED
  C   CHANGE FROM PREVIOUS TYPE
 

#SEBP12810079
 

7N-7428: DRIVE GP-ACCESSORY

7N7428 ACCESSORY DRIVE GROUP-SHUT-OFF-TYPE 1
REFER TO 5N5382 CHART-PAGE 214
AN ATTACHMENT
c301880 SEBP1281
7N7428 DRIVE GP-ACCESSORY Parts scheme
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Parts for your 3512 GEN SET ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 2W-1061 C [1] HOUSING ASSEM.  
2. 8M-8489 [2] DOWEL  
3. 3K-6662 [2] BEARING  
4. 7N-2043 [2] PIN  
5. 4S-7756 [1] SEAL  
6. 1F-4622 [1] BEARING  
7. 0S-1588 C [14] BOLT  
8. 5M-2894 C [25] WASHER  
9. 0S-1571 [5] BOLT  
10. 032-1267 [2] CONNECTOR  
11. 0L-1143 [1] BOLT  
12. 4B-4845 [1] PLUG  
13. 9M-4202 [1] PLUG  
14. 4B-8407 [1] GASKET  
15. 0S-1590 C [4] BOLT  
16. 8N-2934 [1] TUBE  
17. 3H-0107 [2] SEAL  
18. 2N-8611 [1] RING  
19. 7N-7308 [1] GASKET  
20. 7N-7295 [1] COUPLING  
21. 7N-4320 [1] GASKET  
22. 3P-4347 [1] SPACER  
23. 7N-7296 [1] GEAR (29 teeth)  
24. 2B-0947 [2] BOLT  
  5P-8245 [2] WASHER  
25. 7N-7294 C [1] GEAR ASSEM.  
26. 9S-1307 [2] DOWEL  
27. 6K-9194 [1] ELBOW  
28. 7N-5981 [1] TUBE ASSEM.  
29. 7N-7297 [1] COVER  
30. 7N-7307 [1] GASKET  
31. 9L-9653 [1] PLUG  
  3B-1925 [1] WASHER  
32. 0S-1588 [1] BOLT 31.75 mm(1.25 in.)  
    - OR -
  0S-1591 C [1] BOLT 38.10 mm(1.50 in.)  
  C   INDICATES CHANGE
 

Information:

Engine News
Two Front Timing Gear Housings Available
1987/03/01
New Idler Shaft And Sealing Washers Used In Front Gears And Accessory Drives
1987/04/01
Front Idler And Accessory Drive Gears Improved
1989/05/01
Correct Installation of Front Gear Train Idler Shaft{1237}
1994/11/01
New Camshaft Cover Seal, Crankshaft Cover Seal, And Valve Cover Seal Help Prevent Oil Leaks {1107,1150,1200}
1999/06/01
Front Gear Group Changed To Help Keep Oil Pump Adapter Assembly Bolts Tight{1206,1304}
1999/09/01
New Seals for the Front Housing {1151, 1207}
2003/10/01
Improved Alternator Drive Assemblies, Auxiliary Drive Pulley Groups and Accessory Drive Groups {1151, 1207, 1425}
2003/10/01
New Seal for the Front Housing {1151}
2003/11/01
New Seal for the Front Housing {1151, 1207}
2004/06/01
New O-Ring Seals Are Used on the Front Housings of 3500 Engines {1151, 1162, 1166, 1206, 1207}
2010/01/18
Reuse And Salvage Guidelines
Thermal Spray Procedures for Engine Front Cover{0679, 1150, 1151, 1162}
Thermal Spray Procedures for Engine Front Cover{0679, 1150, 1151, 1162}
Disassembly and Assembly
Front Drive Housing - Remove and Install
3508, 3512 and 3516 Generator Set Engines
Service Magazine
Two Front Timing Gear Housings Available{1162,1150}
1987/02/23
New Idler Shaft And Sealing Washers Used In Front Gears And Accessory Drives{1206,1207}
1987/04/06
Front Idler And Accessory Drive Gears Improved {1206,1361}
1989/05/15
Correct Torque Required For Bolts In Rear Gear Groups; Specification Omitted From Some Service Manuals{1204,1237,7568}
1990/04/02

Caterpillar Parts SIS Catalog 3512 :

HOUSING GP-FRONT
8N-8111 HOUSING GP-FRONT
HOUSING GP-FRONT
8N-8111 HOUSING GP-FRONT
RAIL GP-ENGINE SUPPORT
8N-8417 RAIL GP-ENGINE SUPPORT
RAIL GP-ENGINE SUPPORT
8N-8417 RAIL GP-ENGINE SUPPORT
RAIL GP-ENGINE SUPPORT
8N-8417 RAIL GP-ENGINE SUPPORT
RAIL GP-ENGINE SUPPORT
7W-3730 RAIL GP-ENGINE SUPPORT
RAIL GP-ENGINE SUPPORT
7N-6207 RAIL GP-ENGINE SUPPORT
RAIL GP-ENGINE SUPPORT
7N-6207 RAIL GP-ENGINE SUPPORT
COVER GP-FRONT HOUSING
8N-9642 COVER GP-FRONT HOUSING
GEAR GP-FRONT
8N-7174 GEAR GP-FRONT
GEAR GP-FRONT
8N-7174 GEAR GP-FRONT
CHART-AUXILIARY DRIVE
8N-7500 CHART-AUXILIARY DRIVE
DRIVE GP-ACCESSORY
7N-4871 DRIVE GP-ACCESSORY
DRIVE GP-ACCESSORY
8N-9166 DRIVE GP-ACCESSORY
DRIVE GP-ACCESSORY
8N-9167 DRIVE GP-ACCESSORY
DRIVE GP-ACCESSORY
8N-9167 DRIVE GP-ACCESSORY

Truck sale:

Caterpillar 3512, mobile generator sets, Construction
230,416 
Caterpillar 3512, mobile generator sets, Construction
- mobile generator sets
FINANZAUTO S.A.
Caterpillar 3512, mobile generator sets, Construction
230,416 
Caterpillar 3512, mobile generator sets, Construction
- mobile generator sets
FINANZAUTO S.A.
 
238,453 
Caterpillar 3512, mobile generator sets, Construction
- mobile generator sets
FINANZAUTO S.A.
Caterpillar 3512, mobile generator sets, Construction
178,974 
Caterpillar 3512, mobile generator sets, Construction
- mobile generator sets
FINANZAUTO S.A.
Caterpillar 3512, mobile generator sets, Construction
178,974 
Caterpillar 3512, mobile generator sets, Construction
- mobile generator sets
FINANZAUTO S.A.
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