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8N0226 CYLINDER HEAD GP*R ENGINE S/N 8Z4882-33155 12G MOTOR GRADER


BASIC ENGINE
CYLINDER HEAD GP
LIFTING GP-ENGINE
CYLINDER HEAD GP
LIFTING GP-ENGINE
VALVE MECHANISM GP
LIFTING GP-ENGINE
VALVE MECHANISM GP

MOTOR GRADER 12G MOTOR GRADER 61M
 12G MOTOR GRADER 61M07711-12026 (MACHINE) POWERED BY 3306 ENGINE SEBP1268 12G 61M   (1973)

BASIC ENGINE

CYLINDER HEAD GP
COVER GP-CYLINDER HEAD
2P-6530 COVER GP-CYLINDER HEAD
CYLINDER HEAD GP
8N-0226 CYLINDER HEAD GP
CYLINDER HEAD GP
8N-0226 CYLINDER HEAD GP
CYLINDER HEAD GP
8N-0226 CYLINDER HEAD GP
CYLINDER HEAD GP
1W-3356 CYLINDER HEAD GP
CYLINDER HEAD GP
1W-3356 CYLINDER HEAD GP
FASTENER GP-CYLINDER HEAD
7N-9536 FASTENER GP-CYLINDER HEAD
 

#SEBP12680030
 

8N-0226: CYLINDER HEAD GP

8N0226 CYLINDER HEAD GP*R
ENGINE S/N 8Z4882-33155
c234317 SEBP1268
8N0226 CYLINDER HEAD GP Parts scheme
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Parts for your 12G MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 7S-7144 [12] SPRING-VALVE  
2. 1W-5300 C [12] ROTOCOIL AS  
    (EACH INCLUDES)
  8N-7782 [1] ROTOCOIL AS  
  6P-1385 [4] BLOCK  
3. 6N-7174 [1] SHIELD-OIL  
4. 8N-6796 R [1] CYLINDER HEAD GP  
5. 0S-1594 [4] BOLT  
6. 5M-2894 [4] WASHER  
7. 1P-6367 [1] COVER  
8. 5S-6735 [1] GASKET  
9. 3B-0623 [6] PLUG-CUP  
10. 3S-8313 [7] PLUG-CUP  
11. 1S-3062 [18] DIRECTOR-WATER  
12. 2B-0858 [3] PLUG-PIPE  
13. 7N-4448 [6] INSERT (INTAKE)  
14. 8N-0435 [6] INSERT (EXHAUST)  
15. 2P-1262 [12] GUIDE-VALVE  
16. 3P-1896 [12] PLUG-CUP  
17. 5M-6213 [1] PLUG  
18. 3S-5496 [1] SEAL-O-RING  
19. 7N-7999 [1] GASKET-CYLINDER HEAD  
20. 6N-9915 [6] VALVE-INLET  
21. 7N-0573 [6] VALVE-EXHAUST  
22. 7N-8025 [18] SEAL-WATER  
23. 7N-8018 [6] SEAL-WATER  
24. 2A-4429 [24] LOCK-RETAINER  
  C   CHANGE FROM PREVIOUS TYPE
  R   REMFG PART MAY BE AVAILABLE
 

#SEBP12680031
 

8N-0226: CYLINDER HEAD GP

8N0226 CYLINDER HEAD GP*R
ENGINE S/N 8Z33156-UP
c348654 SEBP1268
8N0226 CYLINDER HEAD GP Parts scheme
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Parts for your 12G MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 7S-7144 [12] SPRING  
2. 1W-5300 [12] ROTOCOIL AS.  
    (EACH INCLUDES)
  8N-7782 [1] ROTOCOIL AS.  
  6P-1385 [4] BLOCK  
3. 6N-7174 [1] SHIELD  
4. 8N-6796 R [1] HEAD AS.  
5. 0S-1594 [4] BOLT  
6. 5M-2894 [4] WASHER  
7. 1P-6367 [1] COVER  
8. 5S-6735 [1] GASKET  
9. 2B-0858 [3] PLUG  
10. 2P-1262 [12] GUIDE  
11. 3P-1896 [12] PLUG  
12. 3S-8313 [7] PLUG  
13. 8N-4485 C [1] VALVE AS.  
14. 2W-4837 C [6] INSERT (EXHAUST)  
15. 7N-4448 [6] INSERT (INTAKE)  
16. 3B-0623 [6] PLUG  
17. 7H-3171 C [1] PLUG  
18. 3S-5496 [1] SEAL  
19. 7N-7999 [1] GASKET  
20. 6N-9915 [6] VALVE (INTAKE)  
21. 7N-0573 [6] VALVE (EXHAUST)  
22. 4W-8087 C [18] SEAL  
23. 7N-8018 [6] SEAL  
24. 2A-4429 [24] LOCK  
  C   INDICATES CHANGE
  R   REMFG PART MAY BE AVAILABLE
 

#SEBP12680032
 

1W-3356: CYLINDER HEAD GP

1W3356 CYLINDER HEAD GROUP-TYPE 1
ENGINE SERIAL NO. 8Z2401 TO 8Z4239 INCLUSIVE
c233158 SEBP1268
1W3356 CYLINDER HEAD GP Parts scheme
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Parts for your 12G MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 7S-7144 [12] SPRING  
2. 8N-7781 [12] ROTOCOIL ASSEM.  
    (Each Includes)
  8N-7782 [1] ROTOCOIL ASSEM.  
    (Includes)
  6P-1385 [4] BLOCK  
3. 8N-7780 [1] SHIELD  
4. 8N-6796 R [1] HEAD ASSEM.  
    (Includes)
5. 0S-1594 [4] BOLT  
6. 5M-2894 [4] WASHER  
7. 1P-6367 [1] COVER  
8. 5S-6735 [1] GASKET  
9. 3B-0623 [6] PLUG  
10. 3S-8313 [7] PLUG  
11. 1S-3062 [18] DIRECTOR  
12. 2B-0858 [3] PLUG  
13. 7N-4448 [6] INSERT (intake)  
14. 8N-0435 [6] INSERT (exhaust)  
15. 2P-1262 [12] GUIDE  
16. 3P-1896 [12] PLUG  
17. 7H-3171 [1] PLUG  
18. 3S-5496 [1] SEAL  
19. 7N-7999 [1] GASKET  
20. 6N-9915 [6] VALVE (intake)  
21. 7N-0573 [6] VALVE (exhaust)  
22. 7N-8025 [18] SEAL  
23. 7N-8018 [6] SEAL  
24. 2A-4429 [24] LOCK  
  R   REMFG PART MAY BE AVAILABLE
 

#SEBP12680033
 

1W-3356: CYLINDER HEAD GP

1W3356 CYLINDER HEAD GROUP-TYPE 2
ENGINE SERIAL NO. 8Z2401 TO 8Z4239 INCLUSIVE
c301027 SEBP1268
1W3356 CYLINDER HEAD GP Parts scheme
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Parts for your 12G MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 7S-7144 [12] SPRING  
2. 1W-5300 C [12] ROTOCOIL ASSEM.  
    (Each Includes)
  8N-7782 [1] ROTOCOIL ASSEM.  
    (Includes)
  6P-1385 [4] BLOCK  
3. 6N-7174 [1] SHIELD  
4. 8N-6796 R [1] HEAD ASSEM.  
    (Includes)
5. 0S-1594 [4] BOLT  
6. 5M-2894 [4] WASHER  
7. 1P-6367 [1] COVER  
8. 5S-6735 [1] GASKET  
9. 3B-0623 [6] PLUG  
10. 3S-8313 [7] PLUG  
11. 1S-3062 [18] DIRECTOR  
12. 2B-0858 [3] PLUG  
13. 7N-4448 [6] INSERT (intake)  
14. 8N-0435 [6] INSERT (exhaust)  
15. 2P-1262 [12] GUIDE  
16. 3P-1896 [12] PLUG  
17. 7H-3171 [1] PLUG  
18. 3S-5496 [1] SEAL  
19. 7N-7999 [1] GASKET  
20. 6N-9915 [6] VALVE (intake)  
21. 7N-0573 [6] VALVE (exhaust)  
22. 7N-8025 [18] SEAL  
23. 7N-8018 [6] SEAL  
24. 2A-4429 [24] LOCK  
  C   INDICATES CHANGE
  R   REMFG PART MAY BE AVAILABLE
 

#SEBP12680034
 

7N-9122: LIFTING GP-ENGINE

7N9122 ENGINE LIFTING GROUP
ENGINE SERIAL NO.8Z1 TO 8Z3013 INCLUSIVE
c226950 SEBP1268
7N9122 LIFTING GP-ENGINE Parts scheme
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Parts for your 12G MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 7N-9123 [1] PLATE-LIFTING EYE  
2. 6N-7650 [1] PLATE-LIFTING EYE  
3. 4B-3823 C [4] BOLT  
4. 5P-8245 C [4] WASHER 25.5MM(1IN)THK  
5. 7M-1026 [2] WASHER 1.5MM(.060IN)THK  
  C   CHANGE FROM PREVIOUS TYPE
 

#SEBP12680035
 

7N-9536: FASTENER GP-CYLINDER HEAD

7N9536 CYLINDER HEAD FASTENER GROUP
c226521 SEBP1268
7N9536 FASTENER GP-CYLINDER HEAD Parts scheme
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Parts for your 12G MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 5B-9603 [7] BOLT  
2. 1B-7709 C [5] BOLT (LOCATION X)  
3. 1D-4595 B [20] BOLT  
4. 2S-0736 C [25] WASHER-HARD  
  B   USE AS REQUIRED
  C   CHANGE FROM PREVIOUS TYPE
 

#SEBP12680036
 

1W-5567: LIFTING GP

1W5567 ENGINE LIFTING GROUP
ENGINE SERIAL NO.8Z3014 TO 8Z4239 INCLUSIVE
c234169 SEBP1268
1W5567 LIFTING GP Parts scheme
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Parts for your 12G MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 7N-9123 [1] PLATE  
2. 6N-7650 [1] PLATE  
3. 4B-3823 [4] BOLT  
4. 5P-8245 [4] WASHER 25.5 mm(1 in.) thick  
5. 7M-1026 [2] WASHER 1.5 mm(.060 in.) thick  
 

#SEBP12680037
 

7N-8026: VALVE MECHANISM GP

7N8026 VALVE MECHANISM GROUP-TYPE 1
c225937 SEBP1268
7N8026 VALVE MECHANISM GP Parts scheme
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Parts for your 12G MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 8N-3252 C [1] SHAFT AS-ROCKER  
  0L-1026 [2] PLUG-CUP  
2. 7N-8015 [1] BRACKET-ROCKER ARM SHAFT  
  5M-4606 [1] DOWEL  
3. 4B-4910 [5] SPRING  
4. 9H-1110 [12] WASHER  
5. 5S-5879 [4] BRACKET-SHAFT  
6. 8N-3324 [6] ROCKER ARM AS-VALVE (EXHAUST)  
7. 8N-3326 [6] ROCKER ARM AS-VALVE (INLET)  
8. 8S-1499 [1] BRACKET AS-SHAFT  
  3F-6795 [1] DOWEL  
9. 9M-9886 B [2] WASHER  
  9H-1112 [2] SPRING  
  9H-1113 [2] RING-RETAINER  
10. 1B-4203 [12] NUT-FULL  
11. 5S-5917 [12] SCREW-ROCKER ADJUSTING  
12. 5S-5918 [12] ROD-VALVE PUSH  
13. 7S-3161 [12] LIFTER-VALVE  
14. 5P-5598 [1] SEAL-O-RING  
15. 1B-7709 C [1] BOLT  
  2S-0736 C [1] WASHER-HARD  
  B   USE AS REQUIRED
  C   CHANGE FROM PREVIOUS TYPE
 

#SEBP12680038
 

7N-9122: LIFTING GP-ENGINE

7N9122 ENGINE LIFTING GROUP
ENGINE SERIAL NO.8Z4240-UP
c233152 SEBP1268
7N9122 LIFTING GP-ENGINE Parts scheme
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Parts for your 12G MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 8N-6827 C [1] PLATE  
2. 8N-8721 C [1] PLATE  
3. 6V-1999 C [4] BOLT  
4. 8D-5054 C [4] WASHER  
  C   INDICATES CHANGE
 

#SEBP12680039
 

7N-8026: VALVE MECHANISM GP

7N8026 VALVE MECHANISM GP-TYPE 2
c452705 SEBP1268
7N8026 VALVE MECHANISM GP Parts scheme
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Parts for your 12G MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 8N-3252 [1] SHAFT AS-ROCKER  
2. 6V-3508 C [2] PLUG-CUP  
3. 7N-8015 [1] BRACKET-ARM SHAFT  
4. 5M-4606 [1] DOWEL  
5. 4B-4910 [5] SPRING  
6. 9H-1110 [12] WASHER  
7. 5S-5879 [4] BRACKET-SHAFT  
8. 8N-3325 [6] VALVE ROCKER ARM GP  
    (EXHAUST)
9. 8N-3327 [6] VALVE ROCKER ARM GP  
    (INLET)
    (EA ARM AS INCL)
10. 3S-2713 [1] NUT-FULL  
11. 5S-5917 [1] SCREW-ROCKER ADJ  
12. 8S-1499 [1] BRACKET AS-SHAFT  
13. 3F-6795 [1] DOWEL  
14. 9M-9886 B [2] WASHER  
15. 9H-1112 [2] SPRING  
16. 9H-1113 [2] RING-RETAINER  
17. 5S-5918 [12] ROD-VALVE PUSH  
18. 7S-3161 [12] LIFTER-VALVE  
19. 8M-4448 C [1] SEAL-O RING  
20. 1B-7709 [1] BOLT  
  2S-0736 [1] WASHER-HARD  
  B   USE AS REQUIRED
  C   INDICATES CHANGE
 

Information:

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}
185-5321 Cylinder Head Lifting Hook Assembly{0599, 0632, 0703, 1101, 6459}
185-5321 Cylinder Head Lifting Hook Assembly{0599, 0632, 0703, 1101, 6459}
188-3922 Broken Exhaust Bolt and Stud Removal Group for 3114, 3116, 3126, 3126B, 3176, 3176B, C-10, and C12 Engines{0374, 0599, 0701, 0702, 0703}
188-3922 Broken Exhaust Bolt and Stud Removal Group for 3114, 3116, 3126, 3126B, 3176, 3176B, C-10, and C12 Engines{0374, 0599, 0701, 0702, 0703}
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
Engine Valve Failure Modes{1100, 1105}
Engine Valve Failure Modes{1100, 1105}
Reuse and Salvage for Cylinder Head Assemblies {1100, 1101, 1103, 1104, 1105, 1106, 1108, 1109, 1115, 1117, 1121, 1124, 1125}
Reuse and Salvage for Cylinder Head Assemblies {1100, 1101, 1103, 1104, 1105, 1106, 1108, 1109, 1115, 1117, 1121, 1124, 1125}
Reuse & Salvage for Valvetrain Components {1102, 1108, 1109, 1121, 1123}
Reuse & Salvage for Valvetrain Components {1102, 1108, 1109, 1121, 1123}
Using the 9U-5383 Vacuum Tester {0774, 0781, 1000, 1100}
Using the 9U-5383 Vacuum Tester {0774, 0781, 1000, 1100}
Applied Failure Analysis
Engine Valve Failure Modes{1100, 1105}
Engine Valve Failure Modes{1100, 1105}
Disassembly and Assembly
Inlet and Exhaust Valves - Remove and Install
3304B and 3306B Engines for Caterpillar Built Machines
Inlet and Exhaust Valve Guides - Remove and Install
3304B and 3306B Engines for Caterpillar Built Machines
Inlet and Exhaust Valve Seat Inserts - Remove and Install
3304B and 3306B Engines for Caterpillar Built Machines
Cylinder Head - Remove
3304B and 3306B Engines for Caterpillar Built Machines
Camshaft Bearings - Remove and Install
3304B and 3306B Engines for Caterpillar Built Machines
Cylinder Head - Install
3304B and 3306B Engines for Caterpillar Built Machines
Service Magazine
New Specification for Reusability of the Intake Valves and Exhaust Valves {1105}
2002/05/13
Caterpillar Warranty Claims on Cylinder Head Valves {1105}
2005/10/03
Later Pre-Chamber Cylinder Heads On Early 3304 Engines Without Drilled Rocker Stands Are Used {1100}
2012/10/11

Caterpillar Parts SIS Catalog 12G :

CYLINDER HEAD GP
8N-0226 CYLINDER HEAD GP
CAMSHAFT GP
1N-4406 CAMSHAFT GP
CAMSHAFT GP
2P-6202 CAMSHAFT GP
COVER GP-CYLINDER HEAD
2P-6530 COVER GP-CYLINDER HEAD
PISTON & ROD GP
1W-6588 PISTON & ROD GP
SEAL GP-CRANKSHAFT
2P-6226 SEAL GP-CRANKSHAFT
SEAL GP-CRANKSHAFT
2P-6224 SEAL GP-CRANKSHAFT
PISTON & ROD GP
8N-2531 PISTON & ROD GP
CYLINDER HEAD GP
8N-0226 CYLINDER HEAD GP
CYLINDER HEAD GP
1W-3356 CYLINDER HEAD GP
CYLINDER HEAD GP
1W-3356 CYLINDER HEAD GP
LIFTING GP-ENGINE
7N-9122 LIFTING GP-ENGINE
FASTENER GP-CYLINDER HEAD
7N-9536 FASTENER GP-CYLINDER HEAD
LIFTING GP
1W-5567 LIFTING GP
VALVE MECHANISM GP
7N-8026 VALVE MECHANISM GP
LIFTING GP-ENGINE
7N-9122 LIFTING GP-ENGINE

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