4N7444 CYLINDER HEAD ASSEMBLY Engine Serial No. 48V28588 to 48V32540 inclusive Part of 2P6484 Cylinder Head Group shown on Page 12B 225

BASIC ENGINE

CYLINDER HEAD GP

0. 4N-7444 CYLINDER H
1. 6N-8875 CYLINDER H
2. 8N-1188 CYLINDER H
3. 2P-6484 CYLINDER H
4. 2P-6484 CYLINDER H
5. 2P-6484 CYLINDER H
6. 2P-6484 CYLINDER H
7. 2P-6544 FASTENER G

VALVE MECHANISM GP

8. 2P-6524 VALVE-MECH
9. 2P-6514 COVER GP-V
0. INFORMATION

EXCAVATOR 225 EXCAVATOR 76U
225 EXCAVATOR 76U01200-02728 (MACHINE) POWERED BY 3304 ENGINE HEBP1161 225 76U (1972)

BASIC ENGINE

CYLINDER HEAD GP

4N-7444 CYLINDER HEAD ASSEMBLY

6N-8875 CYLINDER HEAD AS

8N-1188 CYLINDER HEAD GP

2P-6484 CYLINDER HEAD GP

2P-6544 FASTENER GP-CYLINDER HEAD

#HEBP11610020

4N-7444: CYLINDER HEAD ASSEMBLY

CYLINDER HEAD ASSEMBLY

4N7444 CYLINDER HEAD ASSEMBLY
Engine Serial No. 48V28588 to 48V32540 inclusive
Part of 2P6484 Cylinder Head Group shown on Page 12B

c202759 HEBP1161

4N7444 CYLINDER HEAD ASSEMBLY Parts scheme

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Parts for your 225 EXCAVATOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	1S-3062	[ 12]	DIRECTOR
2.	3B-0623	[ 4]	PLUG
3.	2B-0858	[ 3]	PLUG
4.	3S-8313	[ 4]	PLUG
5.	2P-1262	[ 8]	GUIDE
7.	5S-7221	[ 4]	INSERT (exhaust)
8.	5S-7218	[ 4]	INSERT (intake)

#HEBP11610021

6N-8875: CYLINDER HEAD AS

CYLINDER HEAD AS

6N8875 CYLINDER HEAD ASSEMBLY
Engine Serial No. 48V32541 to 48V38782 inclusive
Part of 2P6484 Cylinder Head Group shown on Page 13

c217788 HEBP1161

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Parts for your 225 EXCAVATOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	1S-3062	[12]	DIRECTOR-WATER
2.	3B-0623	[4]	PLUG-CUP
3.	2B-0858	[3]	PLUG-PIPE
4.	3S-8313	[4]	PLUG-CUP
5.	2P-1262	[8]	GUIDE-VALVE
6.	5S-7218	[4]	INSERT-VALVE SEAT (INTAKE)
7.	1P-6837	[4]	INSERT-VALVE SEAT (EXHAUST)

#HEBP11610022

8N-1188: CYLINDER HEAD GP

CYLINDER HEAD GP

8N1188 CYLINDER HEAD ASSEMBLY
Engine Serial No. 48V43300-Up
Part of 2P6484 Cylinder Head Group shown on Page 13B

c224991 HEBP1161

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Parts for your 225 EXCAVATOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	1S-3062	[12]	DIRECTOR
2.	3B-0623	[4]	PLUG
3.	2B-0858	[3]	PLUG
4.	3S-8313	[4]	PLUG
5.	2P-1262	[8]	GUIDE
6.	5S-7221	[4]	INSERT (exhaust)
7.	7N-4448	[4]	INSERT (intake)
8.	7N-2597	[1]	SPACER

#HEBP11610023

2P-6484: CYLINDER HEAD GP

CYLINDER HEAD GP

2P6484 CYLINDER HEAD GROUP
Engine Serial No. 48V28588 to 48V32540 inclusive
4N7444 Cylinder Head parts are shown on Page 12

c207276 HEBP1161

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Parts for your 225 EXCAVATOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	4N-7444 Y	[1]	HEAD ASSEM.
			(Separate Illustration)
2.	5S-6452 C	[4]	VALVE (Intake)
3.	5S-7232 C	[4]	VALVE (Exhaust)
4.	7S-7144	[8]	SPRING
5.	2A-4429	[16]	LOCK
6.	5S-5874	[8]	ROTO COIL
7.	8S-3970	[4]	CHAMBER ASSEM.
	7S-3206	[4]	SEAL
	5M-2667 C	[4]	GASKET 4.93 mm(.194 in.) thick
	2S-8959 C	[4]	GASKET 5.66 mm(.223 in.) thick
	2S-8960 C	[4]	GASKET 6.3 mm(.248 in.) thick
8.	5S-6277	[1]	GASKET
	C		INDICATES CHANGE
	Y		SEPARATE ILLUSTRATION

#HEBP11610024

2P-6484: CYLINDER HEAD GP

CYLINDER HEAD GP

2P6484 CYLINDER HEAD GROUP
Engine Serial No. 48V32541 to 48V38782 inclusive
6N8875 Cylinder Head parts are shown on Page 12A

c217001 HEBP1161

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Parts for your 225 EXCAVATOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	6N-8875 RCY	[1]	HEAD ASSEM.
			(Separate Illustration)
2.	5S-6452	[4]	VALVE (Intake)
3.	5S-7232	[4]	VALVE (Exhaust)
4.	7S-7144	[8]	SPRING
5.	2A-4429	[16]	LOCK
6.	5S-5874	[8]	ROTO COIL
7.	8S-3970	[4]	CHAMBER ASSEM.
	7S-3206	[4]	SEAL
	5M-2667	[4]	GASKET 4.93 mm(.194 in.) thick
	2S-8959	[4]	GASKET 5.66 mm(.223 in.) thick
	2S-8960	[4]	GASKET 6.3 mm(.248 in.) thick
8.	7N-7386 C	[1]	GASKET
	C		INDICATES CHANGE
	R		REMFG PART MAY BE AVAILABLE
	Y		SEPARATE ILLUSTRATION

#HEBP11610025

2P-6484: CYLINDER HEAD GP

CYLINDER HEAD GP

2P6484 CYLINDER HEAD GROUP
Engine Serial No. 48V38783 to 48V43299 inclusive

c220699 HEBP1161

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Parts for your 225 EXCAVATOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	7N-7386	[1]	GASKET
2.	5S-6452	[4]	VALVE (intake)
3.	5S-7232	[4]	VALVE (exhaust)
4.	7S-7144	[8]	SPRING
5.	2A-4429	[16]	LOCK
6.	5S-5874	[8]	ROTO COIL
7.	8S-3970	[4]	CHAMBER ASSEM.
	7S-3206	[4]	SEAL
	5M-2667	[4]	GASKET 4.93 mm (.194 in.) thick
	2S-8959	[4]	GASKET 5.66mm(.223 in.)thick
	2S-8960	[4]	GASKET 6.3 mm (.248 in.) thick
8.	6N-8121 RC	[1]	HEAD ASSEM.
			(Includes)
9.	3B-0623	[4]	PLUG
10.	7N-2597	[1]	SPACER
11.	1S-3062	[12]	DIRECTOR
12.	2B-0858	[3]	PLUG
13.	2P-1262	[8]	GUIDE
14.	5S-7221	[4]	INSERT
15.	3S-8313	[4]	PLUG
16.	7N-4448	[4]	INSERT
	C		INDICATES CHANGE
	R		REMFG PART MAY BE AVAILABLE

#HEBP11610026

2P-6484: CYLINDER HEAD GP

CYLINDER HEAD GP

2P6484 CYLINDER HEAD GROUP
Engine Serial No. 48V43300-Up
8N1188 Cylinder Head parts are shown on Page 12A

c227904 HEBP1161

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Parts for your 225 EXCAVATOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	2A-4429	[16]	LOCK
2.	5S-5874	[8]	ROTOCOIL ASSEM.
3.	7S-7144	[8]	SPRING
4.	8N-1188 RY	[1]	HEAD ASSEM.
			(Separate Illustration)
5.	8S-3970	[4]	CHAMBER ASSEM.
6.	7S-3206	[4]	SEAL
7.	5M-2667	[4]	GASKET 4.93 mm(.194 in.) thick
	2S-8959	[4]	GASKET 5.66 mm(.223 in.) thick
	2S-8960	[4]	GASKET 6.3 mm(.248 in.) thick
8.	7N-7386	[1]	GASKET
9.	5S-7232	[4]	VALVE (exhaust)
10.	5S-6452	[4]	VALVE (intake)
	R		REMFG PART MAY BE AVAILABLE
	Y		SEPARATE ILLUSTRATION

#HEBP11610027

2P-6544: FASTENER GP-CYLINDER HEAD

FASTENER GP-CYLINDER HEAD

2P6544 CYLINDER HEAD FASTENER GROUP

c117252 HEBP1161

2P6544 FASTENER GP-CYLINDER HEAD Parts scheme

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Parts for your 225 EXCAVATOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	1A-5183	[5]	BOLT
	5B-3850	[5]	WASHER
2.	1B-7709	[4]	BOLT (Location X)
3.	2S-0736	[18]	WASHER
4.	1D-4595	[14]	BOLT

#HEBP11610028

2P-6524: VALVE-MECHANISM GP

VALVE-MECHANISM GP

2P6524 VALVE MECHANISM GROUP

c119069 HEBP1161

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Parts for your 225 EXCAVATOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	2P-3189	[1]	SHAFT ASSEM.
	0L-1026	[2]	PLUG (.50 in. Diameter)
2.	5S-5879	[1]	BRACKET
	5M-4606	[1]	DOWEL
3.	4B-4910	[3]	SPRING
4.	9H-1110	[8]	WASHER
5.	5S-5879	[2]	BRACKET
6.	5S-6855	[4]	ARM ASSEM. (Exhaust)
7.	5S-6854	[4]	ARM ASSEM. (Intake)
8.	8S-1499	[1]	BRACKET ASSEM.
	3F-6795	[1]	DOWEL
9.	9M-9886	[2]	WASHER
	9H-1112	[2]	SPRING
10.	1B-4203	[8]	NUT
11.	5S-5917	[8]	SCREW
12.	5S-5918	[8]	ROD
13.	7S-3161	[8]	LIFTER
14.	9H-1113	[2]	RING

#HEBP11610029

2P-6514: COVER GP-VALVE MECHANISM

COVER GP-VALVE MECHANISM

2P6514 VALVE MECHANISM COVER GROUP

c117345 HEBP1161

2P6514 COVER GP-VALVE MECHANISM Parts scheme

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Parts for your 225 EXCAVATOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	2N-3871	[1]	COVER AS-HEAD
2.	8S-1606	[1]	GASKET-COVER
3.	0S-1617	[11]	BOLT
	3B-4505	[11]	LOCKWASHER

Information:

BASIC ENGINE

CYLINDER HEAD GP

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}

Service Magazine

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 225 :

9S-8912 PISTON & ROD GP

2P-8598 HUB GP-CRANKSHAFT

CRANKSHAFT BEARING REPLACEMENTS

6N-8875 CYLINDER HEAD AS

8N-1188 CYLINDER HEAD GP

2P-6484 CYLINDER HEAD GP

2P-6544 FASTENER GP-CYLINDER HEAD

2P-6524 VALVE-MECHANISM GP

Truck sale:

CATERPILLAR 225 1985
- TRACK EXCAVATORS
ZEPPELIN BAUMASCHINEN
Gebrauchtmaschinen Pool Karl-Bröger-Strasse 8 - Alsfeld

CATERPILLAR 225 1979
- TRACK EXCAVATORS
PETERSON TRACTOR CO

CATERPILLAR 225 1984
- TRACK EXCAVATORS
MILTON CAT
100 Quarry Drive - MILFORD - Massachus

Call

1986 CAT 225

Sound Heavy Machinery
North Carolina

USD $26,900

1977 CAT 225

Construction Station
Wayne, Michigan