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8N7661 CAMSHAFT GROUP SERIAL NO. 51Y481 TO 51Y503 INCLUSIVE 3512 VEHICULAR ENGINE


BASIC ENGINE
CAMSHAFT GP
PISTON & ROD GP
CYLINDER HEAD GP
VALVE MECHANISM GP

VEHICULAR ENGINE 3512 VEHICULAR ENGINE 51Y
 3512 VEHICULAR ENGINE 51Y00001-00512 SEBP1292 3512 51Y   (1980)

BASIC ENGINE

CAMSHAFT GP
CAMSHAFT GP-DOUBLE
8N-7661 CAMSHAFT GP-DOUBLE
CAMSHAFT GP-DOUBLE
8N-7661 CAMSHAFT GP-DOUBLE
CAMSHAFT GP-SINGLE
4W-9712 CAMSHAFT GP-SINGLE
 

#SEBP12920030
 

8N-7661: CAMSHAFT GP-DOUBLE

8N7661 CAMSHAFT GROUP
SERIAL NO. 51Y481 TO 51Y503 INCLUSIVE
c321230 SEBP1292
8N7661 CAMSHAFT GP-DOUBLE Parts scheme
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Parts for your 3512 VEHICULAR ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 7N-3218 [2] WASHER  
2. 0L-1351 [4] BOLT  
3. 8N-7656 [1] CAMSHAFT (REAR L.H.)  
4. 7N-3216 [2] SPACER  
5. 8N-7655 [1] CAMSHAFT (FRONT L.H.)  
6. 4N-1650 [2] DOWEL  
7. 8N-7657 [1] CAMSHAFT (FRONT R.H.)  
8. 5P-0076 [16] BOLT  
9. 8N-7658 [1] CAMSHAFT (REAR R.H.)  
10. 8N-9991 C [2] PLATE AS.  
    (each includes)
  1T-0679 [1] ROLLER  
11. 0S-0509 C [2] BOLT  
  5M-2894 C [2] WASHER  
  C   INDICATES CHANGE
 

#SEBP12920031
 

4W-9712: CAMSHAFT GP-SINGLE

4W9712 SINGLE CAMSHAFT GROUP
SERIAL NO. 51Y504-UP
c412243 SEBP1292
4W9712 CAMSHAFT GP-SINGLE Parts scheme
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Parts for your 3512 VEHICULAR ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 7N-3218 [2] WASHER-THRUST  
2. 0L-1351 [4] BOLT  
3. 8N-7656 [1] CAMSHAFT-REAR-LH  
4. 7N-3216 [2] SPACER-CAMSHAFT  
5. 8N-7659 C [1] CAMSHAFT AS-FRONT-LH  
  4N-1650 [1] DOWEL  
6. 0S-0509 [2] BOLT  
  5M-2894 [2] WASHER  
7. 8N-7657 [1] CAMSHAFT-FRONT-RH  
8. 5P-0076 [16] BOLT-12 POINT HEAD  
9. 8N-7660 [1] CAMSHAFT AS-REAR-RH  
  4N-1650 [1] DOWEL  
10. 8N-9991 [2] PLATE AS-TIMING  
    (EACH INCLUDES)
  1T-0679 [1] ROLLER-FREEWHEEL  
  C   CHANGE FROM PREVIOUS TYPE
 

#SEBP12920032
 

8N-7952: PISTON & ROD GP

8N7952 CONNECTING ROD AND PISTON GROUP-12 REQUIRED
c341223 SEBP1292
8N7952 PISTON & ROD GP Parts scheme
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Parts for your 3512 VEHICULAR ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 8N-7963 [1] PISTON GP  
  4W-7402 C [1] BODY AS-PISTON  
2. 8N-1233 [1] RING-PISTON (TOP)  
3. 8N-7810 [1] RING-PISTON (INTERMEDIATE)  
4. 7W-2221 C [1] RING (OIL)  
5. 7N-2393 [1] PIN-PISTON  
6. 8N-7296 [2] RETAINER-PIN  
7. 1W-4800 C [1] ROD AS-CONNECTING  
8. 7N-2405 [4] BOLT-CONNECTING ROD  
9. 7N-2043 [1] PIN-DOWEL  
10. 1W-9166 C [1] BEARING-SLEEVE  
11. 7N-2394 [1] BEARING-CONNECTING ROD (STANDARD)  
  1N-4071 BA [1] BEARING-ROD  
    .635MM(.025IN.)U.S.
  1N-4072 BA [1] BEARING-ROD  
    1.27MM(.050IN.)U.S.
  1N-4073 BA [1] BEARING-ROD  
    .254MM(.010IN.)O.S.
  1N-4074 BA [1] BEARING-ROD  
    .635MM(.025IN.)U.S.
    .254MM(.010IN.)O.S.
  1N-4075 BA [1] BEARING-ROD  
    1.27MM(.050IN.)U.S.
    .254MM(.010IN.)O.S.
  1N-3967 BA [1] RING GP-PISTON  
    (CONSISTS OF COMPLETE
    SET OF RINGS FOR
    ONE PISTON)
  A   NOT PART OF THIS GROUP
  B   USE AS REQUIRED
  C   CHANGE FROM PREVIOUS TYPE
 

#SEBP12920033
 

4W-7573: PISTON & ROD GP

4W7573 CONNECTING ROD AND PISTON GROUP-12 REQUIRED
SERIAL NO. 51Y481-UP
FOR USE WITH 3500 ENGINE STAND-BY GENERATOR SETS
AN ATTACHMNENT
c322541 SEBP1292
4W7573 PISTON & ROD GP Parts scheme
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Parts for your 3512 VEHICULAR ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4W-7402 [1] BODY AS-PISTON  
2. 8N-1233 [1] RING-PISTON (TOP)  
3. 8N-7810 [1] RING-PISTON (INTERMEDIATE)  
4. 8N-1442 [1] RING-PISTON (OIL)  
5. 4W-7403 [1] PIN-PISTON  
6. 8N-7296 [2] RETAINER-PIN  
7. 1W-4800 [1] ROD AS-CONNECTING  
8. 7N-2405 [4] BOLT-CONNECTING ROD  
9. 7N-2043 [1] PIN-DOWEL  
10. 1W-9166 [1] BEARING-SLEEVE  
11. 1W-7538 [1] BEARING-CONNECTING ROD (STANDARD)  
  4W-5709 A [1] BEARING-CONNECTING ROD .635MM(.025IN)U.S.  
  4W-5710 A [1] BEARING-CONNECTING ROD 1.27MM(.050IN)U.S.  
  4W-5711 A [1] BEARING-CONNECTING ROD .254MM(.010IN)O.S.  
  4W-5712 A [1] BEARING-CONNECTING ROD .635MM(.025IN)U.S.  
    .254MM(.010IN)O.S.
  4W-5713 A [1] BEARING-CONNECTING ROD 1.27MM(.050IN)U.S.  
    .254MM(.010IN)O.S.
  A   NOT PART OF THIS GROUP
 

#SEBP12920034
 

8N-7173: CYLINDER HEAD GP

8N7173 CYLINDER HEAD GROUP-12 REQUIRED
SERIAL NO. 51Y1 TO 51Y477 INCLUSIVE
8N7172-PAGE 15
c228876 SEBP1292
8N7173 CYLINDER HEAD GP Parts scheme
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Parts for your 3512 VEHICULAR ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 5B-7890 [1] PLUG  
2. 7N-1961 [6] BOLT  
3. 5P-8248 [8] WASHER  
4. 0L-2070 [2] BOLT  
  5M-2894 [2] WASHER  
5. 7N-1899 [1] GASKET  
6. 7N-1901 [1] BOLT  
7. 8N-7172 RY [1] HEAD GROUP  
    (Separate Illustration)
8. 8N-6862 [4] SEAL  
9. 8N-6863 [4] SEAL  
  R   REMFG PART MAY BE AVAILABLE
  Y   SEPARATE ILLUSTRATION
 

#SEBP12920035
 

8N-7172: CYLINDER HEAD GP

8N7172 CYLINDER HEAD GROUP*R
SERIAL NO. 51Y1 TO 51Y477 INCLUSIVE
PART OF 8N7173 CYLINDER HEAD
c316963 SEBP1292
8N7172 CYLINDER HEAD GP Parts scheme
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Parts for your 3512 VEHICULAR ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 2A-4429 [8] LOCK-RETAINER  
2. 7N-7964 [4] ROTOCOIL AS  
3. 7N-1903 [4] SPRING-VALVE INNER  
4. 7N-1904 [4] SPRING-VALVE OUTER  
5. 2W-2662 [4] WASHER  
6. 1N-3968 [1] CYLINDER HEAD AS-SERIAL  
7. 7N-1902 [2] DOWEL  
8. 9S-8002 C [4] PLUG-O-RING  
  3J-7354 [4] SEAL-O-RING  
9. 3B-0623 [6] PLUG-CUP  
10. 3P-1896 [3] PLUG-CUP  
11. 1W-1801 [4] INSERT-VALVE SEAT  
12. 4D-0514 [1] PLUG-PIPE  
13. 7N-1819 [4] GUIDE-VALVE  
14. 4B-4845 C [2] PLUG  
15. 1W-3359 J [4] VALVE-EXHAUST & INLET  
  C   CHANGE FROM PREVIOUS TYPE
 

#SEBP12920036
 

2W-5803: CYLINDER HEAD GP

2W5803 CYLINDER HEAD GROUP-12 REQUIRED
SERIAL NO. 51Y478-UP
2W5802-PAGE 15.02
c334749 SEBP1292
2W5803 CYLINDER HEAD GP Parts scheme
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Parts for your 3512 VEHICULAR ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 5B-7890 [1] PLUG-PIPE  
2. 7N-1961 [6] BOLT  
3. 5P-8248 [8] WASHER-HARD  
4. 0L-2070 [2] BOLT  
  5M-2894 [2] WASHER  
5. 7N-1899 [1] GASKET-HEAD  
6. 7N-1901 [2] BOLT  
7. 2W-5802 YR [1] CYLINDER HEAD GP  
8. 8N-6862 [4] SEAL-WATER  
9. 8N-6863 [4] SEAL-WATER  
10. 4D-0514 CB [1] PLUG-PIPE  
  B   USE AS REQUIRED
  C   CHANGE FROM PREVIOUS TYPE
  R   REMFG PART MAY BE AVAILABLE
  Y   SEPARATE ILLUSTRATION
 

#SEBP12920037
 

2W-5802: CYLINDER HEAD GP

2W5802 CYLINDER HEAD GROUP*R
SERIAL NO. 51Y478-UP
PART OF 2W5803 CYLINDER HEAD
c316390 SEBP1292
2W5802 CYLINDER HEAD GP Parts scheme
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Parts for your 3512 VEHICULAR ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 2A-4429 C [8] LOCK-RETAINER  
2. 7N-7964 C [4] ROTOCOIL AS  
3. 7N-1903 [4] SPRING-VALVE INNER  
4. 7N-1904 [4] SPRING-VALVE OUTER  
5. 2W-2662 [4] WASHER  
6. 7N-1902 [2] DOWEL  
7. 2W-5801 [1] CYLINDER HEAD AS  
8. 9S-8002 [4] PLUG-O-RING  
  3J-7354 [4] SEAL-O-RING  
9. 3B-0623 [6] PLUG-CUP  
10. 3P-1896 [3] PLUG-CUP  
11. 1W-1801 [4] INSERT-VALVE SEAT  
12. 4D-0514 [1] PLUG-PIPE  
13. 7N-1819 [4] GUIDE-VALVE  
14. 4W-6802 [4] VALVE-EXHAUST & INLET  
  C   CHANGE FROM PREVIOUS TYPE
 

#SEBP12920038
 

7N-1858: VALVE MECHANISM GP

7N1858 VALVE MECHANISM GROUP-12 REQUIRED
SERIAL NO. 51Y TO 51Y480 INCLUSIVE
c301895 SEBP1292
7N1858 VALVE MECHANISM GP Parts scheme
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Parts for your 3512 VEHICULAR ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 5P-8289 [2] BOLT  
2. 1W-2422 C [1] SHAFT ASSEM.  
  1W-2421 C [1] DOWEL  
3. 7N-3413 [3] SCREW  
  3J-9196 [3] NUT  
4. 8N-7290 C [2] ARM ASSEM.  
    (Each Includes)
5. 8N-7197 [1] SOCKET  
6. 1W-6326 C [1] BEARING  
7. 8N-7289 C [1] ARM ASSEM.  
  1W-6326 C [1] BEARING  
8. 8N-7197 [1] SOCKET  
9. 2N-5842 [2] SCREW  
  9L-7712 [2] NUT  
10. 8N-7292 C [2] BRIDGE ASSEM.  
    (Each Includes)
11. 8N-7191 [1] SEAT  
12. 8F-8858 [3] BUTTON  
13. 9F-7707 [3] RING  
14. 1W-1372 C [1] BASE ASSEM.  
15. 8N-4387 [2] DOWEL  
16. 8N-3969 [1] GASKET  
17. 1A-5964 [2] BOLT  
18. 5M-2894 [6] WASHER  
19. 2J-0157 C [2] SEAL  
20. 2W-3256 C [3] LIFTER ASSEM.  
21. 7N-4782 [3] SPRING  
22. 7N-3431 [3] ROD  
23. 0S-1590 [4] BOLT  
  C   INDICATES CHANGE
 

#SEBP12920039
 

7N-1858: VALVE MECHANISM GP

7N1858 VALVE MECHANISM GROUP-12 REQUIRED
SERIAL NO. 51Y481-UP
c510210 SEBP1292
7N1858 VALVE MECHANISM GP Parts scheme
  For full view, you need register

Parts for your 3512 VEHICULAR ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 5P-8289 [2] BOLT-12 POINT HEAD  
2. 1W-2422 [1] SHAFT AS-ARMATURE  
  1W-2421 [1] DOWEL-HOLLOW  
3. 7N-3413 [3] SCREW-ADJUSTING  
  3J-9196 [3] NUT-JAM  
4. 8N-7290 [2] ARM AS-ROCKER  
    (EACH INCLUDES)
5. 8N-7197 [1] SOCKET-ARM  
6. 1W-6326 [1] BEARING  
7. 8N-7289 [1] ARM AS-ROCKER  
  1W-6326 [1] BEARING  
8. 8N-7197 [1] SOCKET-ARM  
9. 2N-5842 [2] SCREW  
  9L-7712 [2] NUT  
10. 8N-7292 [2] BRIDGE AS  
    (EACH INCLUDES)
11. 8N-7191 [1] SEAT-WEAR  
12. 8F-8858 [3] BUTTON  
13. 9F-7707 [3] RING-RETAINER  
14. 4W-7774 C [1] BASE AS-COVER  
15. 8N-4387 [2] DOWEL-HOLLOW  
16. 4W-7656 C [1] GASKET  
17. 0S-1590 [4] BOLT  
18. 5M-2894 [4] WASHER  
19. 2J-0157 [2] SEAL-O-RING  
20. 2W-3256 [3] LIFTER AS  
21. 7N-4782 [3] SPRING-LIFT GUIDE  
22. 7N-3431 [3] ROD-VALVE PUSH  
  C   CHANGE FROM PREVIOUS TYPE
 

Information:

Engine News
Reusability Of Camshaft Rollers And Roller Followers
1982/09/22
Inspect Camshaft And Lifters After A Failure In The Valve Mechanism Area
1984/01/18
New Camshafts Used In SAE Standard [CCW] Rotation Engines
1985/05/01
New Camshaft Installation Tools Available
1985/09/01
New 8T2998 Lubricant Available
1986/03/01
Beaded Cylinder Head Gasket Provides A Better Seal For Camshaft Compartment
1986/06/01
Piston And Camshaft Changes
1987/10/01
New Lifter Assembly Reduces Pitting And Spalling Of Camshaft Lobes
1990/06/01
New Cylinder Block Groups Have Additional Material Added To The Camshaft Bore Area
1993/11/01
New Sleeve Bearing Used In Camshaft Idler Gear Assembly In Rear Gear Groups{1206}
1995/11/20
New Lifters Improve Roller-To-Camshaft Contact And New Bridges Provide Commonality With 3500B Engines {1102,1121,1209}
1996/08/19
New Camshaft Cover Seal, Crankshaft Cover Seal, And Valve Cover Seal Help Prevent Oil Leaks {1107,1150,1200}
1999/06/01
Correct Installation Of Valve Lifters On The Camshaft Is Very Important To Prevent Failures
1977/05/25
New Cover Seals are Available {1107, 1201, 1210}
2003/05/01
Quality of Remanufactured Camshafts {1210}
2003/07/01
Procedure for Installing the Camshaft Drive Gear {1212}
2005/12/12
Service Letter-NACD
The 5P-0076 Camshaft Segment Bolts On Certain 3512, 3512B, 3516, And 3516B Engines; G3512 And G3516 Gas Engines May Not Have Been Correctly Torqued
The 5P-0076 Camshaft Segment Bolts On Certain 3512, 3512B, 3516, And 3516B Engines; G3512 And G3516 Gas Engines May Not Have Been Correctly Torqued
Service Letter-Australia
Service Letter-CFEL
Service Letter-CSARL
Service Letter-Americas
Specifications
Camshafts<BR> (3508)
3500 VEHICULAR ENGINES
Camshafts<BR> (3512 and 3516)
3500 VEHICULAR ENGINES
Service Letter-China
The 5P-0076 Camshaft Segment Bolts On Certain 3512, 3512B, 3516, And 3516B Engines; G3512 And G3516 Gas Engines May Not Have Been Correctly Torqued
The 5P-0076 Camshaft Segment Bolts On Certain 3512, 3512B, 3516, And 3516B Engines; G3512 And G3516 Gas Engines May Not Have Been Correctly Torqued
Service Letter-Asia
Reuse And Salvage Guidelines
Reuse and Salvage for Camshafts {1210, 1210}
Reuse and Salvage for Camshafts {1210, 1210}
Information Release Memo
APPEARANCE CHANGE ON REMAN SHORT BLOCKS
APPEARANCE CHANGE ON REMAN SHORT BLOCKS
Service Letter-APD
The 5P-0076 Camshaft Segment Bolts On Certain 3512, 3512B, 3516, And 3516B Engines; G3512 And G3516 Gas Engines May Not Have Been Correctly Torqued
The 5P-0076 Camshaft Segment Bolts On Certain 3512, 3512B, 3516, And 3516B Engines; G3512 And G3516 Gas Engines May Not Have Been Correctly Torqued
Disassembly and Assembly
Rear Gear Group
3500 VEHICULAR ENGINES
Camshafts
3500 VEHICULAR ENGINES
Camshaft Bearings
3500 VEHICULAR ENGINES
Service Magazine
6V4019 Camshaft Pilot Group Is Available{0622,1210,1211,1201}
1980/12/22
Reusability Of Camshaft Rollers And Roller Followers{1209,1210}
1982/09/06
Inspect Camshaft And Lifters After A Failure In The Valve Mechanism Area{1209,1208,1210}
1983/12/05
New Camshafts Used In SAE Standard [CCW] Rotation Engines{1200,1210}
1985/04/22
New Camshaft Installation Tools Available{0600}
1985/08/19
Maximum Wear Limits Established For Camshaft Roller Followers{1209}
1985/09/30
New 8T2998 Lubricant Available{0645,1210}
1986/02/17
Beaded Cylinder Head Gasket Provides A Better Seal For Camshaft Compartment{1100}
1986/05/26
Correct Installation Of Valve Lifters On The Camshaft Is Very Important To Prevent Failures{1209}
1977/05/16
Piston And Camshaft Changes{1214,1210,1200}
1987/10/12
New Lifter Assembly Reduces Pitting And Spalling Of Camshaft Lobes{1209}
1990/06/04
Rear Gear (Cam Drive) Groups Improved{1206,1201,1212,7551,7552,7553}
1991/05/13
New Cylinder Block Groups Have Additional Material Added To The Camshaft Bore Area{1201}
1993/11/09
Tools Used To Remove And Install Both Sizes Of Camshaft Bearings In 3500B Engines{1211,0701}
1996/12/09

Caterpillar Parts SIS Catalog 3512 :

CAMSHAFT GP-DOUBLE
8N-7661 CAMSHAFT GP-DOUBLE
CRANKSHAFT BEARING REPLACEMENTS
SEAL GP-CRANKSHAFT
7N-1854 SEAL GP-CRANKSHAFT
CRANKSHAFT GP
8N-7103 CRANKSHAFT GP
CRANKSHAFT GP
8N-7103 CRANKSHAFT GP
COVER GP-CYLINDER BLOCK
8N-9641 COVER GP-CYLINDER BLOCK
COVER GP-CYLINDER BLOCK
8N-9641 COVER GP-CYLINDER BLOCK
COVER GP-CYLINDER BLOCK
8N-9641 COVER GP-CYLINDER BLOCK
CAMSHAFT GP-SINGLE
4W-9712 CAMSHAFT GP-SINGLE
PISTON & ROD GP
8N-7952 PISTON & ROD GP
PISTON & ROD GP
4W-7573 PISTON & ROD GP
CYLINDER HEAD GP
8N-7173 CYLINDER HEAD GP
CYLINDER HEAD GP
8N-7172 CYLINDER HEAD GP
CYLINDER HEAD GP
2W-5803 CYLINDER HEAD GP
CYLINDER HEAD GP
2W-5802 CYLINDER HEAD GP
VALVE MECHANISM GP
7N-1858 VALVE MECHANISM GP

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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