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1053788 CYLINDER HEAD AS ENGINE S/N 67U16070-UP PART OF 7W2224 CYLINDER HEAD FIELD REPLACEMENT ORDER 7W2225-PAGE 13 PR-450


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

COLD PLANER PR-450 COLD PLANER 7DC
 PR-450 COLD PLANER 7DC00204-UP (MACHINE) POWERED BY 3408 ENGINE KEBP0069 PR-450 7DC   (1985)

BASIC ENGINE

CYLINDER HEAD GP
CYLINDER HEAD GP
7W-2224 CYLINDER HEAD GP
CYLINDER HEAD GP
7W-2224 CYLINDER HEAD GP
CYLINDER HEAD AS
105-3788 CYLINDER HEAD AS
CYLINDER HEAD AS
7W-2223 CYLINDER HEAD AS
 

#KEBP00690030
 

105-3788: CYLINDER HEAD AS

1053788 CYLINDER HEAD AS
ENGINE S/N 67U16070-UP
PART OF 7W2224 CYLINDER HEAD
FIELD REPLACEMENT ORDER 7W2225-PAGE 13
c559731 KEBP0069
1053788 CYLINDER HEAD AS Parts scheme
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Parts for your PR-450 COLD PLANER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 3B-0645 [6] PLUG-CUP  
2. 4N-5893 [8] INSERT-INLET (INTAKE)  
3. 1W-5283 [8] INSERT-VALVE SEAT (EXHAUST)  
4. 3B-0623 [8] PLUG-CUP  
 

#KEBP00690031
 

4N-4298: VALVE MECHANISM GP

4N4298 VALVE MECHANISM GP
4N1718-PAGE 20
c570199 KEBP0069
4N4298 VALVE MECHANISM GP Parts scheme
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Parts for your PR-450 COLD PLANER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4N-1718 Y [2] ROCKER ARM GP  
2. 4N-5611 [8] BRIDGE AS-EXHAUST  
    (EACH INCLUDES)
3. 2N-5842 [1] SCREW  
  9L-7712 [1] NUT  
4. 2P-9845 [8] BOLT  
  5H-1504 [8] WASHER-HARD  
5. 4W-5998 [16] ROD AS-PUSH  
6. 6N-6872 [16] SPRING-GUIDE  
7. 101-7788 [16] LIFTER AS-VALVE  
8. 4N-5612 [8] BRIDGE AS-INTAKE  
    (EACH INCLUDES)
9. 2N-5842 [1] SCREW  
  9L-7712 [1] NUT  
  Y   SEPARATE ILLUSTRATION
 

#KEBP00690032
 

7W-2223: CYLINDER HEAD AS

7W2223 CYLINDER HEAD AS
PART OF 7W2224 & 7W2225 CYLINDER HEADS
FIELD REPLACEMENT ORDER 7W2225-PAGE 13
c326788 KEBP0069
7W2223 CYLINDER HEAD AS Parts scheme
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Parts for your PR-450 COLD PLANER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 3B-0645 [6] PLUG-CUP  
2. 4N-5893 [8] INSERT-INLET (INTAKE)  
3. 1W-5283 [8] INSERT-VALVE SEAT (EXHAUST)  
4. 3B-0623 [8] PLUG-CUP  
 

#KEBP00690033
 

4N-1718: ROCKER ARM GP

4N1718 ROCKER ARM GP
PART OF 4N4298 VALVE MECHANISM
c575102 KEBP0069
4N1718 ROCKER ARM GP Parts scheme
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Parts for your PR-450 COLD PLANER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 006-7403 [2] RING-RETAINING  
2. 2N-7228 [4] WASHER  
3. 4N-0955 [2] PIN-DOWEL  
4. 2N-7229 [3] SPRING  
5. 4N-1106 [1] SHAFT AS-ROCKER  
6. 0L-1022 [2] PLUG-CUP  
7. 9Y-4384 C [3] BRACKET-SHAFT  
8. 4N-5614 [8] ARM AS-ROCKER  
9. 108-5603 [8] SCREW-ROCKER ADJUSTMENT  
10. 9L-7712 [8] NUT  
11. 9Y-4385 C [1] BRACKET AS-SHAFT  
  2D-6642 [1] BALL 6.35MM DIA  
12. 4B-9880 [1] BALL 7.93MM DIA  
  C   CHANGE FROM PREVIOUS TYPE
 

#KEBP00690034
 

4W-6826: COVER GP-VALVE MECHANISM

4W6826 COVER GP-VALVE MECHANISM
ENGINE S/N 67U11990-UP
c616213 KEBP0069
4W6826 COVER GP-VALVE MECHANISM Parts scheme
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Parts for your PR-450 COLD PLANER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 9L-8925 [38] BOLT  
2. 7C-6514 [4] ADAPTER  
  8C-5196 [4] SEAL-O-RING  
3. 4W-6822 [2] BASE-COVER  
4. 7C-9635 [2] COVER-ROCKER ARM  
5. 5P-5678 BD SEAL  
6. 6N-2985 [2] CAP AS-FILLER  
7. 9L-8925 B [2] BOLT  
  B   USE AS REQUIRED
  D   ORDER BY THE METER
 

#KEBP00690035
 

4W-6826: COVER GP-VALVE MECHANISM

4W6826 COVER GP-VALVE MECHANISM
ENGINE S/N 67U11094-11989
c326780 KEBP0069
4W6826 COVER GP-VALVE MECHANISM Parts scheme
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Parts for your PR-450 COLD PLANER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 9L-8925 [40] BOLT  
2. 4N-0851 [4] ADAPTER  
3. 4W-6822 [2] BASE-COVER  
4. 6N-2438 [2] COVER-ROCKER ARM  
5. 5P-5678 BD SEAL  
6. 6N-2985 [2] CAP AS-FILLER  
  B   USE AS REQUIRED
  D   ORDER BY THE METER
 

#KEBP00690036
 

7N-1750: LIFTING GP

7N1750 LIFTING GP
c572639 KEBP0069
7N1750 LIFTING GP Parts scheme
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Parts for your PR-450 COLD PLANER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 7N-1751 [2] BRACKET-LIFTING  
2. 0S-1585 [2] BOLT  
  5P-8245 [2] WASHER  
3. 5P-8245 B [6] WASHER  
4. 0S-1585 B [6] BOLT  
  B   USE AS REQUIRED
 

#KEBP00690037
 

7W-8620: PLUG GP-VALVE COVER

7W8620 PLUG GP
c461368 KEBP0069
7W8620 PLUG GP-VALVE COVER Parts scheme
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Parts for your PR-450 COLD PLANER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 2N-8109 [1] CLAMP  
2. 4F-7390 [1] SEAL  
3. [1] CUP  
 

#KEBP00690038
 

4N-5226: HOUSING GP-FRONT

4N5226 HOUSING GP-FRONT
TIMING GEAR
ENGINE S/N 67U11830-UP
c607302 KEBP0069
4N5226 HOUSING GP-FRONT Parts scheme
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Parts for your PR-450 COLD PLANER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 123-4207 [1] GASKET-CYLINDER BLOCK  
2. 7C-4843 C [1] HOUSING-GEAR  
3. 3K-3256 [2] STUD  
4. 9S-8752 [1] NUT-FULL  
5. 0L-1352 [2] BOLT  
6. 5M-2894 C [6] WASHER  
7. 0L-1143 [3] BOLT  
  C   CHANGE FROM PREVIOUS TYPE
 

#KEBP00690039
 

4N-5226: HOUSING GP-FRONT

4N5226 HOUSING GP-FRONT
TIMING GEAR
ENGINE S/N 67U11094-11829
c222292 KEBP0069
4N5226 HOUSING GP-FRONT Parts scheme
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Parts for your PR-450 COLD PLANER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 6N-7142 C [1] HOUSING-GEAR  
2. 3K-3256 C [1] STUD  
3. 0L-1352 C [2] BOLT  
4. 5M-2894 [5] WASHER  
5. 0L-1143 [3] BOLT  
6. 4N-1625 [1] GASKET-CYLINDER BLOCK  
7. 6F-7012 C [1] STUD  
  C   CHANGE FROM PREVIOUS TYPE
 

Information:

Engine News
New Tool Makes Glow Plug Wire Removal Easier
1981/05/20
Service Manual Information About Inside Diameters Of Valve Guides
1981/10/21
New Fuel Nozzle Adapter Assembly Used
1982/02/24
Reconditioning Of Bridge Wear Seat Is Permitted; Will Prevent Bridge Replacement When Not Necessary
1982/04/07
Carbon Build-Up In Combustion And Inlet Areas
1982/04/07
Improved Inlet And Exhaust Valves
1982/09/22
Fuel In The Cooling System Or Coolant In The Engine Oil Can Result From Cracked Fuel Nozzle Adapter
1982/10/20
New Head Gasket Improves Seal Between Block And Liner Flange
1982/10/20
Dimensions For Reconditioning Cylinder Blocks, Cylinder Heads
1983/01/19
Use Caution During Replacement Of Damaged Nozzle Adapters Or Precombustion Chambers
1983/01/19
Engine Valve Stem "Use Again" Specifications
1983/03/16
New Fuel Nozzle Adapters Used
1983/05/25
Valve Damage Can Be Caused By Short Intervals Of Engine Operation In Very Cold Temperatures
1983/10/26
New Valve Lifter Assemblies Used In Valve Mechanism Groups
1983/11/30
New Adapter Assemblies And Clamps Used To Hold Fuel Nozzles In Position
1984/03/07
Dimensions For Reconditioning Cylinder Blocks, Cylinder Heads
1984/05/16
Surface Grinding Of Compacted Graphite Iron Cylinder Heads
1984/07/11
New Inlet Valves Used In Cylinder Heads
1984/09/12
New High Alloy Material Is Used In Cylinder Head Assemblies
1984/10/24
A New Book "Analyzing Diesel And Natural Gas Engine Valve Failures" Is Available
1985/03/01
Extra Injection Nozzle Clamp Helps Prevent Injection Nozzle Damage
1985/08/01
Cylinder Head And Valve Rocker Arm Brackets Have Oil Supply Passages In A Different Location To Prevent Possible Oil Leakage Into Cooling System
1985/11/01
Adjust Bridge Whenever Valve Clearance Adjustments Are Made
1986/04/01
Determining The Cause Of Glow Plug Tip Failures
1986/06/01
Valve Lash Adjustment Interval Is Changed
1986/07/01
Change To Interval For Valve Lash Adjustment
1987/02/01
Salvage Of Cylinder Heads By Using Oversized Valve Guides And Valve Inserts
1987/04/01
Silicone Rubber Water Seals Available
1987/07/01
Improved Valve Mechanism Cover Groups
1988/01/01
Seal Retainer And Seals Are Required When A New Cylinder Head Assembly Is Installed
1988/11/01
Improved Head Gasket Used; Service Tips
1990/03/01
Reconditioning Of Bridge Wear Seat Is Permitted; Will Prevent Bridge Replacement When Not Necessary
1990/05/01
Dimensions For Aluminum Washer
1990/08/01
New Exhaust Valves Are Used In Caterpillar Remanufactured Cylinder Heads
1990/10/01
Cylinder Head Gaskets Improved To Provide Better Fire Ring Retention{1124}
1994/02/01
Identification Of Intake And Exhaust Valves That May Be Used In Remanufactured Direct Injected 3400 Cylinder Heads{1105}
1994/04/18
New Intake And Exhaust Valves Used {1105,1100}
1994/06/01
New Rocker Arm Adjustment Screw Used To Adjust Valve Clearance {1123,1100}
1994/06/01
New Valve Lifter Assembly Provides Improved Lubrication Of Lifter Roller And Camshaft Lobes {1209,1210}
1994/06/01
New Inlet And Exhaust Valves Have Thinner Heads{1105}
1995/02/01
Valve Lash Adjustment Intervals{1105}
1995/08/01
New And Reconditioned Valve Projection Specifications{1105}
1995/09/01
Be Sure To Use The Correct Inlet And Exhaust Valves In Engines Equipped With Valve Bridges That Do Not Ride On Dowels{1105,1121}
1998/03/01
Recommended Repairs After Cylinder Head Gasket Failure {1101}
1999/11/01
Improved Exhaust Valve Now Available
1977/03/15
Correct Installation Of Valve Lifters On The Camshaft Is Very Important To Prevent Failures
1977/05/25
5P7333 Tool Group Available For The Repair Of Loose Bridge Dowels On Cylinder Heads
1977/06/29
Clean Bolt Holes In Cylinder Block Before Cylinder Heads Are Installed
1977/07/13
Tolerance Added To Valve Clearance Specifications
1978/01/18
Use Again Specifications For Valve Springs Are Changed
1978/03/01
5P8700 Lifting Brackets Permit Cylinder Head Assembly To Be Removed And Installed
1978/07/05
Remove Fuel Injection Nozzles Before The Bottom Surface Of A Cylinder Head Is Cleaned
1978/08/16
Caterpillar Warranty Claims on Cylinder Head Valves {1105}
2005/10/03
Clearly Mark all of the Cracks on the Cylinder Head Including Remanufactured Engines with Serial Number Prefixes 1WW, BFF, DLA, BFD, BKY, BLR, ECP, BGE, BKS, BLJ, B1A, BNF and 2MZ {1101, 7754}
2006/04/10
Improved Cylinder Head Assemblies Are Available through Cat Reman for Certain Commercial Engines {1100}
2014/10/10
A New Water Seal Assembly Is Now Used on All 3408, 3412, C27 and C32 Commercial Engines {1100, 7555}
2013/05/13
Special Instruction
3400 Cylinder Head To Block Joint Repair Procedure{1124}
3400 Cylinder Head To Block Joint Repair Procedure{1124}
Use Of The 5P7333 Tool Group For Bridge Dowel Repair{1101}
Use Of The 5P7333 Tool Group For Bridge Dowel Repair{1101}
Installation Of 7N9013 Gasket Service Group{1101, 1221}
Installation Of 7N9013 Gasket Service Group{1101, 1221}
Use Of The 1P7451 Valve Guide Honing Group{0673, 1104}
Use Of The 1P7451 Valve Guide Honing Group{0673, 1104}
Installing Heli-Coil Inserts In Caterpillar Cylinder Heads{1117}
Installing Heli-Coil Inserts In Caterpillar Cylinder Heads{1117}
Use Of 6V4805 Valve Seat Insert Puller Group{0703}
Use Of 6V4805 Valve Seat Insert Puller Group{0703}
Installation Of 2W3815 Or 5N93 Inserts{1217}
Installation Of 2W3815 Or 5N93 Inserts{1217}
Repair Of Precombustion Chamber And Direct Injection Adapter Seating Surfaces{1101}
Repair Of Precombustion Chamber And Direct Injection Adapter Seating Surfaces{1101}
Use Of 6V9050 Exhaust Stud Removal Group{1100}
Use Of 6V9050 Exhaust Stud Removal Group{1100}
Determining the Cause of Fuel Dilution of Engine Oil {1101, 1124, 1251, 1280, 1290}
Determining the Cause of Fuel Dilution of Engine Oil {1101, 1124, 1251, 1280, 1290}
Technical Information Bulletin
Failures of the 4W-5733 Valve Adapter and the 4W-5719 Adapter As on Certain 3408 and 3412 Engines{1100}
Failures of the 4W-5733 Valve Adapter and the 4W-5719 Adapter As on Certain 3408 and 3412 Engines{1100}
Specifications
Fuel Injection Nozzle And Adapter
3408C & 3412C INDUSTRIAL ENGINES
Valves, Valve Springs And Valve Seat Inserts
3408C & 3412C INDUSTRIAL ENGINES
Cylinder Heads
3408C & 3412C INDUSTRIAL ENGINES
Cylinder Head
3408B and 3408C Industrial and Marine Engines
Cylinder Head Valves
3408B and 3408C Industrial and Marine Engines
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}
{0374, 0599, 0629, 0632, 0700, 0701, 1100, 1101}
{0374, 0599, 0629, 0632, 0700, 0701, 1100, 1101}
M0088789: 550-9152 Gage Ring Assembly {0374, 0599, 0700, 0701, 0759, 1100, 1105}
M0088789: 550-9152 Gage Ring Assembly {0374, 0599, 0700, 0701, 0759, 1100, 1105}
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}
Information Release Memo
PRODUCT LINE ADDITIONS: REMANUFACTURED SHORT AND LONG BLOCKS FOR VARIOUS APPLICATIONS
PRODUCT LINE ADDITIONS: REMANUFACTURED SHORT AND LONG BLOCKS FOR VARIOUS APPLICATIONS
APPEARANCE CHANGE ON REMAN SHORT BLOCKS
APPEARANCE CHANGE ON REMAN SHORT BLOCKS
CAT REMAN ANNOUNCES ADDITIONAL CYLINDER HEAD RELEASES FOR MINING AND OTHER APPLICATIONS
CAT REMAN ANNOUNCES ADDITIONAL CYLINDER HEAD RELEASES FOR MINING AND OTHER APPLICATIONS
Disassembly and Assembly
Cylinder Head
3408C & 3412C INDUSTRIAL ENGINES
Valves
3408C & 3412C INDUSTRIAL ENGINES
Valve Guides
3408C & 3412C INDUSTRIAL ENGINES
Bridge Dowels
3408C & 3412C INDUSTRIAL ENGINES
Valve Seat Inserts
3408C & 3412C INDUSTRIAL ENGINES
Fuel Injection Nozzles & Adapters
3408C & 3412C INDUSTRIAL ENGINES
Glow Plugs
3408 & 3408B INDUSTRIAL AND MARINE ENGINES
Precombustion Chambers
3408 & 3408B INDUSTRIAL AND MARINE ENGINES
Fuel Injection Nozzles And Adapters
3408 & 3408B INDUSTRIAL AND MARINE ENGINES
Direct Injection Adapters
3408 & 3408B INDUSTRIAL AND MARINE ENGINES
Cylinder Head Assemblies
3408 & 3408B INDUSTRIAL AND MARINE ENGINES
Valves
3408 & 3408B INDUSTRIAL AND MARINE ENGINES
Valve Guides
3408 & 3408B INDUSTRIAL AND MARINE ENGINES
Valve Seat Inserts
3408 & 3408B INDUSTRIAL AND MARINE ENGINES
Bridge Dowels
3408 & 3408B INDUSTRIAL AND MARINE ENGINES
Service Magazine
Use The Correct Water Temperature Contactor{1350,1100}
1980/02/11
Service Manual Information About Inside Diameters Of Valve Guides{1104,0374}
1981/10/05
New Fuel Nozzle Adapter Assembly Used{1106}
1982/02/15
Reconditioning of Bridge Wear Seat Is Permitted; Will Prevent Bridge Replacement When Not Necessary{1100}
1982/03/08
Carbon Build-Up In Combustion And Inlet Areas{1058,1101,1105,1214,1104}
1982/03/22
Vacuum Tester Checks For Leaks Between Valve Face and Seat{0651,1103,1105}
1982/09/06
Improved Inlet And Exhaust Valves{1105}
1982/09/06
New Instruction Card Available For 6V87 Valve Stem Gauge{0653}
1982/09/06
New Head Gasket Improves Seal Between Block And Liner Flange{1101,1201}
1982/09/27
Fuel In The Cooling System Or Coolant In The Engine Oil Can Result From Cracked Fuel Nozzle Adapter{1106}
1982/10/18
New 6V7059 Micrometer Measures Liner Top Flange And Valve Lip {0653,1216,1105}
1982/11/29
Dimensions For Reconditioning Cylinder Blocks, Cylinder Heads{1201,1101,1103,1105}
1982/12/20
Engine Valve Stem "Use Again" Specifications{0653,1105}
1983/02/28
New Fuel Nozzle Adapters Used{1106}
1983/05/09
New Liner Seat Insert Available{1217}
1983/08/15
Valve Damage Can Be Caused By Short Intervals Of Engine Operation In Very Cold Temperatures{1105,1208}
1983/10/17
New Adapter Assemblies And Clamps Used To Hold Fuel Nozzles In Position{1106,1252}
1984/02/27
Dimensions For Reconditioning Cylinder Blocks, Cylinder Heads{1201,1101,1103,1105}
1984/04/23
Surface Grinding Of Compacted Graphite Iron Cylinder Heads{1101}
1984/07/02
New Inlet Valve Used{1105}
1984/09/03
New High Alloy Material Is Used In Cylinder Head Assemblies{1101}
1984/10/15
Remanufactured Cylinder Head Groups{1100,1101,7554}
1984/11/19
Valve Lash Adjustment Not A Warranty Item {1102,1105}
1985/01/14
Use Care When Handling Water Seals For Cylinder Head Spacer Plates{1115}
1985/07/15
Cylinder Head And Valve Rocker Arm Brackets Have Oil Supply Passages In A Different Location To Prevent Possible Oil Leakage Into Cooling System {1100,1102,1350}
1985/10/21
Adjust Bridge Whenever Valve Clearance Adjustments Are Made{1121,1105,1100}
1986/04/07
Determining The Cause Of Glow Plug Tip Failures{1053,1105,1412}
1986/06/02
Valve Lash Adjustment Interval Is Changed {1105}
1986/07/07
Indications Of Engine Overspeeding When Only One Cam Lobe/Lifter Has Failed{1000,1100,1200}
1986/09/08
Avoid Oil Contact With New Water Passage Seals Used In Cylinder Head Groups{1100}
1986/12/15
New Water Temperature Regulator Has A Closer Fit At The Valve Seat To Keep Leakage At A Minimum{1355}
1977/01/17
Improved Exhaust Valve Now Available{1105}
1977/02/28
Correct Installation Of Valve Lifters On The Camshaft Is Very Important To Prevent Failures{1209}
1977/05/16
5P7333 Tool Group Available For The Repair Of Loose Bridge Dowels On Cylinder Heads{0663,1101}
1977/06/20
Clean Bolt Holes In Cylinder Block Before Cylinder Heads Are Installed{1101,1201}
1977/08/08
Tools Now Available To Ream And/Or Hone 0.500" (12.70 mm) Diameter Valve Guides{0663}
1977/08/22
Salvage Of Cylinder Heads By Using Oversized Valve Guides And Valve Inserts {1104,1103}
1987/03/30
Silicone Rubber Water Seals Available{1100}
1987/07/06
Tolerance Added To Valve Clearance Specifications{1105,0374}
1978/01/16
Valve Damage Can Be Caused By Short Intervals Of Engine Operation In Very Cold Temperatures{1105,1208}
1978/01/30
Use Again Specifications For Valve Springs Are Changed{1108}
1978/03/06
A Gasket Group Is Available To Give Improved Sealing For The Oil Supply To The Rocker Arms On Early Engines{1101,1102,1221}
1978/04/03
5P8700 Lifting Brackets Permit Cylinder Head Assembly To Be Removed And Installed{0644,1100}
1978/06/19
Remove Fuel Injection Nozzles Before The Bottom Surface Of A Cylinder Head Is Cleaned{1254,1101}
1978/08/07
Head Bolt Holes In Cylinder Blocks Can Be Repaired{1201,1101}
1988/10/24
A New Method To Clean And Polish Engine Valve Stems{0674,1105}
1979/05/28
Why Engines Are Damaged By Fuel Sulfur{1104,1216,1280,1318,1215}
1979/08/27
Fuel Sulfur-Your Diesel's Silent Enemy{0375,1280}
1979/12/17
Improved Head Gasket Used; Service Tips {1124,1216,1221,7568}
1990/02/26
Reconditioning Of Bridge Wear Seat Is Permitted; Will Prevent Bridge Replacement When Not Necessary{1121}
1990/04/30
New Exhaust Valves Are Used In Caterpillar Remanufactured Cylinder Heads{1105,1101}
1990/10/08
Cylinder Head Gaskets Improved To Provide Better Fire Ring Retention{1124}
1994/02/07
New Cylinder Head Gasket, Spacer Plate And Head Bolts Used; New Cylinder Liner Projection Measurement Method; New Cylinder Head Torque Sequence; Improved Coolant Flow (Cylinder Heads) {1124,1221,1216,1101}
1994/07/04
Remanufactured 3400 Cylinder Heads Now Use Intake And Exhaust Valves With Chrome Plated Valve Stems{1105}
1994/09/05
New Water Seals Used In Cylinder Head Assemblies{1124}
1994/09/05
Caterpillar Warranty Claims on Cylinder Head Valves {1105}
2005/10/03
A New Water Seal Assembly Is Now Used on All 3408 and 3412 Engines {1100, 7555}
2013/08/06

Caterpillar Parts SIS Catalog PR-450 :

CYLINDER HEAD GP
7W-2224 CYLINDER HEAD GP
CYLINDER HEAD GP
7W-2224 CYLINDER HEAD GP
CYLINDER HEAD GP
4W-7005 CYLINDER HEAD GP
CYLINDER HEAD GP
4W-7005 CYLINDER HEAD GP
CYLINDER HEAD GP
4W-7005 CYLINDER HEAD GP
CYLINDER HEAD GP
4W-7005 CYLINDER HEAD GP
CYLINDER HEAD GP
4W-7005 CYLINDER HEAD GP
CYLINDER HEAD GP
4W-7005 CYLINDER HEAD GP
VALVE MECHANISM GP
4N-4298 VALVE MECHANISM GP
CYLINDER HEAD AS
7W-2223 CYLINDER HEAD AS
ROCKER ARM GP
4N-1718 ROCKER ARM GP
COVER GP-VALVE MECHANISM
4W-6826 COVER GP-VALVE MECHANISM
COVER GP-VALVE MECHANISM
4W-6826 COVER GP-VALVE MECHANISM
LIFTING GP
7N-1750 LIFTING GP
PLUG GP-VALVE COVER
7W-8620 PLUG GP-VALVE COVER
HOUSING GP-FRONT
4N-5226 HOUSING GP-FRONT

Truck sale:

1986 CAT PR-450
USD $19,500 
1986 CAT PR-450

Earth Sales Group
Sachse, Texas
1989 CAT PR-450
USD $29,000 
1989 CAT PR-450

Earth Sales Group
Sachse, Texas
1987 CAT PR-450
USD $33,000 
1987 CAT PR-450

Gulf Coast Equipment
1991 CAT PR-450
USD $48,000 
1991 CAT PR-450

Rainier Machinery
Graham, Washington
1987 CAT PR-450
USD $39,000 
1987 CAT PR-450

Earth Sales Group
Sachse, Texas
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