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8N-4745 COVER GP-VALVE MECHANISM S/N 6NC1-UP; 8TD10000-99999; 08Z96264-99999 PART OF 116-2890, 124-4203, 146-4341 ENGINE AR 12H NA


BASIC ENGINE
VALVE MECHANISM GP
CRANKSHAFT GP
CYLINDER BLOCK GP
CYLINDER HEAD GP
DAMPER GP
DRIVE GP-FAN

MOTOR GRADER 12H NA MOTOR GRADER 8MN
 12H Motor Grader 8MN00001-UP (MACHINE) POWERED BY 3306B Engine SEBP2491 12H NA 8MN   (1996)

BASIC ENGINE

VALVE MECHANISM GP
COVER GP-VALVE MECHANISM
8N-4745 COVER GP-VALVE MECHANISM
VALVE MECHANISM GP
7C-7013 VALVE MECHANISM GP
VALVE MECHANISM GP
7N-8026 VALVE MECHANISM GP
 

#SEBP24910020
 

8N-4745: COVER GP-VALVE MECHANISM

8N-4745 COVER GP-VALVE MECHANISM
S/N 6NC1-UP; 8TD10000-99999; 08Z96264-99999
PART OF 116-2890, 124-4203, 146-4341 ENGINE AR
i00125377 SEBP2491
8N4745 COVER GP-VALVE MECHANISM Parts scheme
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Parts for your 12H NA MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 9M-1974 [15] WASHER-HARD (8.8X16X2-MM THK)  
2. 0S-1617 [15] BOLT (5/16-18X0.75-IN)  
3. 2W-1086 [1] COVER AS-CYLINDER HEAD  
4. 8S-1605 [1] SEAL-VALVE COVER  
 

#SEBP24910021
 

2Y-5206: CRANKSHAFT GP

2Y-5206 CRANKSHAFT GP
S/N 8TD10000-99999
PART OF 116-2890 ENGINE AR
FIELD REPLACEMENT FOR 2Y-4517 CRANKSHAFT AS
i00125161 SEBP2491
2Y5206 CRANKSHAFT GP Parts scheme
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Parts for your 12H NA MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 100-3652 [2] PLATE-THRUST  
2. 232-3233 C [7] BEARING-MAIN (STANDARD)  
  8N-8225 AB BEARING-MAIN (0.25-MM US)  
  8N-8226 AB BEARING-MAIN (0.51-MM US)  
  8N-8227 AB BEARING-MAIN (0.76-MM US)  
  8N-8228 AB BEARING-MAIN (0.51-MM OS)  
  8N-8229 AB BEARING-MAIN (0.25-MM US, 0.51-MM OS)  
  4P-7305 AB BEARING-MAIN (0.51-MM OS, 0.51-MM US)  
  4P-7306 AB BEARING-MAIN (0.51-MM OS, 0.76-MM US)  
3. 5Y-1546 [1] CRANKSHAFT AS  
4. 9F-2247 [6] PLUG-PIPE  
5. 1W-4405 [1] GEAR-CRANKSHAFT (40-TEETH)  
6. 5H-2671 [1] KEY-WOODRUFF  
  A   NOT PART OF THIS GROUP
  B   USE AS REQUIRED
  C   CHANGE FROM PREVIOUS TYPE
 

#SEBP24910022
 

4P-9856: CRANKSHAFT GP

4P-9856 CRANKSHAFT GP
S/N 6NC1-UP; 08Z96264-99999
PART OF 124-4203, 146-4341 ENGINE AR
i00125191 SEBP2491
4P9856 CRANKSHAFT GP Parts scheme
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Parts for your 12H NA MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 100-3652 J [2] PLATE-THRUST  
2. 344-2603 [1] CRANKSHAFT AS  
2A. 4P-7827 [1] GEAR-CRANKSHAFT (33-TEETH)  
2B. 5H-2671 [1] KEY-WOODRUFF  
2C. 8T-6757 [6] PLUG-PIPE  
3. 232-3233 J [7] BEARING-MAIN (STANDARD)  
  8N-8225 AB BEARING-MAIN (0.25-MM US)  
  8N-8226 AB BEARING-MAIN (0.51-MM US)  
  8N-8227 AB BEARING-MAIN (0.76-MM US)  
  8N-8228 AB BEARING-MAIN (0.51-MM OS)  
  8N-8229 AB BEARING-MAIN (0.25-MM US, 0.51-MM OS)  
  4P-7305 AB BEARING-MAIN (0.51-MM OS, 0.51-MM US)  
  4P-7306 AB BEARING-MAIN (0.51-MM OS, 0.76-MM US)  
   
    AVAILABLE REPLACEMENT PART(S):
  196-9534 AJ KIT-BASIC ENGINE REPAIR (MAIN BEARING)  
    (INCLUDES STANDARD BEARINGS & THRUST PLATES)
  A   NOT PART OF THIS GROUP
  B   USE AS REQUIRED
  J   KIT MARKED J SERVICES PART(S) MARKED J
  R   REMANUFACTURED PART MAY BE AVAILABLE
 

#SEBP24910023
 

1N-3576: CYLINDER BLOCK GP

1N-3576 CYLINDER BLOCK GP
S/N 6NC1-UP; 8TD10000-99999; 08Z96264-99999
FIELD REPLACEMENT FOR @@@@@ 7N-6550@@@@@, 6N-7727 KIT-CYLINDER BLOCK, WHEN USED WITH
i00125118 SEBP2491
1N3576 CYLINDER BLOCK GP Parts scheme
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Parts for your 12H NA MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 7M-4046 [4] BUSHING  
2. 3J-6019 [1] PLUG  
3. 8K-1207 [2] DOWEL  
4. 4B-5387 [1] PLUG-CUP  
5. 1S-9540 [1] DOWEL  
6. 5B-7652 [2] DOWEL  
7. 6N-8003 [7] CAP-CRANKSHAFT BEARING  
8. 4B-3938 [1] PLUG-CUP  
9. 8B-6349 [2] DOWEL  
10. 5S-8462 [1] STUD  
11. 8N-4110 [1] BUSHING  
12. 4B-9782 [1] BALL  
13. 7S-3224 [14] BOLT (5/8-11X5.25-IN)  
  2S-5658 [14] WASHER-HARD (17X29X3-MM THK)  
 

#SEBP24910024
 

7N-6550: CYLINDER BLOCK GP

7N-6550 CYLINDER BLOCK GP
S/N 6NC1-UP; 8TD10000-99999; 08Z96264-99999
PART OF 8N-5286 CYLINDER BLOCK GP
FIELD REPLACEMENT ORDER @@@@@ 1N-3576@@@@@, 6N-7727 KIT-CYLINDER BLOCK
i00125348 SEBP2491
7N6550 CYLINDER BLOCK GP Parts scheme
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Parts for your 12H NA MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 5S-6670 [18] SEAL-O-RING  
2. 371-5941 [6] LINER-CYLINDER  
  104-5512 ABJ INSERT-LINER SEAT (0.822-MM THK)  
  104-5518 ABJ INSERT-LINER SEAT (1.605-MM THK)  
  104-5527 ABJ INSERT-LINER SEAT (2.71-MM THK)  
  104-5530 ABJ INSERT-LINER SEAT (5.21-MM THK)  
    (REFER TO SEBF8198 FOUND IN SISWEB FOR LINER INSERTS.)
3. 2W-6134 [6] BAND-FILLER  
4. 7S-3224 [14] BOLT (5/8-11X5.25-IN)  
5. 6N-8003 [7] CAP-CRANKSHAFT BEARING  
6. 2S-5658 [14] WASHER-HARD (17X29X3-MM THK)  
  A   NOT PART OF THIS GROUP
  B   USE AS REQUIRED
  J   TO REPAIR LIGHT DAMAGE DUE TO EROSION/FRETTING IN THE LINER FLANGE SEATING AREA
 

#SEBP24910025
 

8N-5286: CYLINDER BLOCK GP

8N-5286 CYLINDER BLOCK GP
S/N 6NC1-UP; 8TD10000-99999; 08Z96264-99999
PART OF 116-2890, 124-4203, 146-4341 ENGINE AR
i00125378 SEBP2491
8N5286 CYLINDER BLOCK GP Parts scheme
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Parts for your 12H NA MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 7N-6550 Y [1] CYLINDER BLOCK GP  
2. 7M-4046 [4] BUSHING  
3. 8K-1207 [2] DOWEL  
4. 3S-5496 [1] SEAL-O-RING  
5. 8B-6349 [2] DOWEL  
6. 7N-7998 [1] PLATE-BLOCK  
7. 115-7550 [1] GASKET-PLATE  
8. 8T-6764 [1] PLUG-PIPE (1/8-27-THD)  
9. 8T-6763 [1] PLUG-PIPE (1/4-18-THD)  
10. 8T-6765 [4] PLUG-PIPE (1/4-18-THD)  
11. 8M-9307 [1] PLUG (ENGINE OIL)  
12. 8T-6762 [3] PLUG-PIPE (1/2-14-THD)  
13. 5B-7652 [2] DOWEL  
14. 8N-4110 [1] BUSHING  
15. 4B-5387 [1] PLUG-CUP  
16. 4B-9782 [1] BALL  
17. 1S-9540 [1] DOWEL  
18. 5S-8462 [1] STUD  
19. 4B-3938 [1] PLUG-CUP  
20. 6F-7062 [1] WASHER (12.7X19.05X1.83-MM THK)  
  Y   SEPARATE ILLUSTRATION
 

#SEBP24910026
 

7N-8876: CYLINDER HEAD GP

7N-8876 CYLINDER HEAD GP
S/N 6NC1-UP; 8TD10000-99999; 08Z96264-99999
PART OF 116-2890, 124-4203, 146-4341 ENGINE AR
i00125350 SEBP2491
7N8876 CYLINDER HEAD GP Parts scheme
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Parts for your 12H NA MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 7S-7144 [12] SPRING-VALVE  
2. 1W-5300 [12] ROTOCOIL AS  
    (EACH INCLUDES)
  6N-7174 [1] SHIELD-OIL  
3. 2A-4429 [24] LOCK-RETAINER  
4. 3S-5496 [1] SEAL-O-RING  
5. 111-8015 [1] GASKET AS-CYLINDER HEAD  
6. 100-7860 [6] VALVE-INLET  
7. 148-7455 [6] VALVE-EXHAUST  
8. 9Y-1798 [18] SEAL  
9. 148-7425 [12] GUIDE-VALVE (STANDARD)  
  154-6997 ABF GUIDE-VALVE (0.51-MM OS)  
  154-6998 ABF GUIDE-VALVE (0.13-MM OS)  
10. 7C-4006 [1] CYLINDER HEAD AS  
10A. 3S-8313 [7] PLUG-CUP  
10B. 3P-1896 [13] PLUG-CUP  
10C. 3B-0623 [6] PLUG-CUP  
11. 107-0268 [6] INSERT-VALVE SEAT (INLET)  
  ABF INSERT-VALVE SEAT (0.13-MM OS, INLET)  
  ABF INSERT-VALVE SEAT (0.25-MM OS, INLET)  
  ABF INSERT-VALVE SEAT (0.51-MM OS, INLET)  
  ABF INSERT-VALVE SEAT (0.76-MM OS, INLET)  
12. 107-0265 [6] INSERT-VALVE SEAT (EXHAUST)  
  ABF INSERT-VALVE SEAT (0.13-MM OS, EXHAUST)  
  ABF INSERT-VALVE SEAT (0.25-MM OS, EXHAUST)  
  ABF INSERT-VALVE SEAT (0.51-MM OS, EXHAUST)  
  ABF INSERT-VALVE SEAT (0.76-MM OS, EXHAUST)  
13. 8T-6762 [3] PLUG-PIPE (1/2-14-THD)  
14. 7N-8018 [6] SEAL  
15. 8T-6763 [1] PLUG-PIPE (1/4-18-THD)  
  A   NOT PART OF THIS GROUP
  B   USE AS REQUIRED
  F   NOT SHOWN
  R   REMANUFACTURED PART MAY BE AVAILABLE
 

#SEBP24910027
 

7E-6200: DAMPER GP

7E-6200 DAMPER GP
S/N 6NC1-UP; 8TD10000-99999; 08Z96264-99999
PART OF 116-2890, 124-4203, 146-4341 ENGINE AR
i00664355 SEBP2491
7E6200 DAMPER GP Parts scheme
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Parts for your 12H NA MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 7C-9997 [1] HUB-CRANKSHAFT  
2. 341-2430 [1] DAMPER AS-CRANKSHAFT  
3. 6H-1717 [6] BOLT (1/2-13X1.125-IN)  
4. 5S-9948 [1] WASHER  
5. 7B-5163 [1] BOLT (3/4-16X4.75-IN)  
  R   REMANUFACTURED PART MAY BE AVAILABLE
 

#SEBP24910028
 

107-9542: DRIVE GP-FAN

107-9542 DRIVE GP-FAN
S/N 8MN1-752
PART OF 116-2891, 135-0355 INSTALLATION AR-ENGINE
i00125704 SEBP2491
1079542 DRIVE GP-FAN Parts scheme
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Parts for your 12H NA MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 152-1352 [1] SUPPORT AS  
  1F-5339 [1] LUG (3/8-16-THD)  
  5K-5962 [1] BOSS-THREADED (5/8-11X1-IN)  
2. 8T-4908 M [6] BOLT (M8X1.25X25-MM)  
3. 107-9575 [1] PULLEY  
4. 166-3361 [1] V-BELT SET (INCLUDES 3 BELTS)  
5. 8X-1805 [1] PULLEY  
6. 8T-4196 M [4] BOLT (M10X1.5X35-MM)  
7. 8T-4121 [8] WASHER-HARD (11X21X2.5-MM THK)  
8. 107-9579 [1] PULLEY  
9. 9X-8257 [4] WASHER (17.5X30X3.5-MM THK)  
10. 7X-2553 M [4] BOLT (M16X2X40-MM)  
11. 8T-4185 M [4] BOLT (M10X1.5X50-MM)  
12. 099-3649 M [6] BOLT (M8X1.25X40-MM)  
13. 8T-4224 [12] WASHER-HARD (8.8X16X2-MM THK)  
14. 194-0639 [1] ADAPTER-FAN  
15. 7C-8365 Y [1] DRIVE GP-FAN  
  M   METRIC PART
  Y   SEPARATE ILLUSTRATION
 

#SEBP24910029
 

7C-8365: DRIVE GP-FAN

7C-8365 DRIVE GP-FAN
S/N 8MN1-UP
PART OF 107-9542 DRIVE GP-FAN
i01530554 SEBP2491
7C8365 DRIVE GP-FAN Parts scheme
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Parts for your 12H NA MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 5S-9062 [1] SPACER (35.032X50.8X15.88-MM THK)  
2. 7C-8370 [1] CAP-DUST  
3. 7C-8366 [1] BRACKET AS  
4. 7C-8369 [1] HUB  
5. 6V-9748 [1] SEAL-LIP TYPE  
6. 4W-1203 [2] CUP-BEARING  
7. 4W-1204 [2] CONE-BEARING  
8. 4W-2042 [1] SPACER (35.3X45.5X38.331-MM THK)  
9. 6V-8004 M [1] BOLT (M12X1.75X120-MM)  
10. 7C-8634 [1] PLATE  
  M   METRIC PART
 

Information:

Truck Engine News
Set Engine Valve Lash After Installing All Remanufactured Long Blocks {1102, 1121, 1123, 1209}
2012/10/08
Engine News
Set Engine Valve Lash After Installing All Remanufactured Long Blocks {1102, 1121, 1123, 1209}
2012/10/08
Tool Operating Manual
Operating Instructions for 155-1536 Valve Recession Tool Kit for all G3500 and 3500 Engines{0374, 0599, 0701, 0703, 0759, 0767}
Operating Instructions for 155-1536 Valve Recession Tool Kit for all G3500 and 3500 Engines{0374, 0599, 0701, 0703, 0759, 0767}
Operating Instructions for 148-2997 Valve Recession Tool Group Used On 3600, G3600, and C175 Engines{0374, 0599, 0701, 0703, 0759}
Operating Instructions for 148-2997 Valve Recession Tool Group Used On 3600, G3600, and C175 Engines{0374, 0599, 0701, 0703, 0759}
CRB Valve Spring Testers 8S-2263 and 4C-9496{0374, 0599, 0700, 0701, 1108}
CRB Valve Spring Testers 8S-2263 and 4C-9496{0374, 0599, 0700, 0701, 1108}
Reuse And Salvage Guidelines
Reuse & Salvage for Valvetrain Components {1102, 1108, 1109, 1121, 1123}
Reuse & Salvage for Valvetrain Components {1102, 1108, 1109, 1121, 1123}
Disassembly and Assembly
Compression Brake - Remove
3304B and 3306B Engines for Caterpillar Built Machines
Compression Brake - Install
3304B and 3306B Engines for Caterpillar Built Machines
Compression Brake - Disassemble
3304B and 3306B Engines for Caterpillar Built Machines
Compression Brake - Assemble
3304B and 3306B Engines for Caterpillar Built Machines
Rocker Shaft and Pushrod - Remove
3304B and 3306B Engines for Caterpillar Built Machines
Rocker Shaft - Disassemble
3304B and 3306B Engines for Caterpillar Built Machines
Rocker Shaft - Assemble
3304B and 3306B Engines for Caterpillar Built Machines
Lifter Group - Remove and Install
3304B and 3306B Engines for Caterpillar Built Machines
Rocker Shaft and Pushrod - Install
3304B and 3306B Engines for Caterpillar Built Machines
Valve Mechanism Cover - Remove and Install
3304B and 3306B Engines for Caterpillar Built Machines
Service Magazine
New Tools Are Available To Help Find The Top Center Position For No. 1 Piston {1105}
2001/11/19
Set Engine Valve Lash After Installing All Remanufactured Long Blocks {1102, 1121, 1123, 1209}
2012/10/08

Caterpillar Parts SIS Catalog 12H NA :

COVER GP-FRONT HOUSING
2P-6529 COVER GP-FRONT HOUSING
COVER GP-CYLINDER HEAD
2P-6530 COVER GP-CYLINDER HEAD
COVER GP-CYLINDER BLOCK
8N-3163 COVER GP-CYLINDER BLOCK
COVER GP-CYLINDER BLOCK
2Y-1958 COVER GP-CYLINDER BLOCK
CAMSHAFT GP
1N-4406 CAMSHAFT GP
AIR COMPRESSOR GP
7W-8399 AIR COMPRESSOR GP
AIR COMPRESSOR GP
111-7994 AIR COMPRESSOR GP
AIR COMPRESSOR GP
110-5765 AIR COMPRESSOR GP
CRANKSHAFT GP
2Y-5206 CRANKSHAFT GP
CRANKSHAFT GP
4P-9856 CRANKSHAFT GP
CYLINDER BLOCK GP
1N-3576 CYLINDER BLOCK GP
CYLINDER BLOCK GP
7N-6550 CYLINDER BLOCK GP
CYLINDER BLOCK GP
8N-5286 CYLINDER BLOCK GP
CYLINDER HEAD GP
7N-8876 CYLINDER HEAD GP
DAMPER GP
7E-6200 DAMPER GP
DRIVE GP-FAN
107-9542 DRIVE GP-FAN

Truck sale:

Caterpillar 12HNA, Construction
On Request 
Caterpillar 12HNA, Construction
- motor graders
WILLIAM ADAMS PTY. LTD.
Australia
Caterpillar 12HNA, Construction
96,997 USD 
Caterpillar 12HNA, Construction
- motor graders
WESTRAC
Western Australia, Australia
Caterpillar 12HNA, Construction
62,500 
Caterpillar 12HNA, Construction
- motor graders
FOLEY EQUIPMENT COMPANY
Caterpillar 12HNA, Construction
69,800 
Caterpillar 12HNA, Construction
- motor graders
YANCEY BROS. CO.
GA
CATERPILLAR 12HNA 2007
 
CATERPILLAR 12HNA 2007
- MOTOR GRADERS
HASTINGS DEERING (AUSTRALIA) LTD.
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The names Cat, Caterpillar, John Deere, Komatsu, Volvo, Hitachi, Doosan, JCB, Hyundai or any other original equipment manufacturers are registered trademarks of the respective original equipment manufacturers. All names, descriptions, numbers and symbols are used for reference purposes only.
AVSpare.com is in no way associated with any of the manufacturers we have listed. All manufacturer's names and descriptions are for reference only. Cat® and Caterpillar® are registered trademarks of Caterpillar, Inc.