AIR CLEANER Serial No. 12A2983 to 12A3979 inclusive Note: 8F6118 Precleaner is available. For use on operations where there is a possibility of foreign material other than dust being drawn into the Air Cleaner 955C

AIR INLET AND EXHAUST SYSTEM

AIR CLEANER GP

0. AIR CLEANE
1. AIR CLEANE
2. AIR CLEANE

LUBRICATION SYSTEM

BREATHER GP

3. BREATHER A
4. BREATHER A

OPERATOR STATION

PANEL GP

5. OIL GAUGE,

BASIC ENGINE

DRIVE GP-ACCESSORY

6. ACCESSORY

ELECTRICAL AND STARTING SYSTEM

STARTING AR

7. COMPRESSIO

BASIC ENGINE

CYLINDER HEAD GP

8. CYLINDER H

CYLINDER BLOCK GP

9. CYLINDER B
0. INFORMATION

TRACK LOADER 955C TRACK LOADER 12A
955 TRAXCAVATOR 12A00001-08418 (MACHINE) UE032563 955C 12A (1955)

AIR INLET AND EXHAUST SYSTEM

AIR CLEANER GP

AIR CLEANER

#UE0325630020

AIR CLEANER

AIR CLEANER
Serial No. 12A2983 to 12A3979 inclusive
Note: 8F6118 Precleaner is available. For use on operations where there is a possibility of foreign material other than dust
being drawn into the Air Cleaner

c51703 UE032563

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Parts for your 955C TRACK LOADER:

CATERPILLAR SIS

Part No	Qty	Parts name
0B-0481	[4]	STUD
		(PART OF PIPE ASSEM.)
1B-4205	[4]	NUT
3B-4508	[4]	LOCKWASHER
4F-8053	[1]	GASKET
5H-4074	[1]	AIR CLEANER
5H-4099	[1]	BODY ASSEM.
7F-7151	[2]	SEAL
5H-2582	[1]	TRAY ASSEM.
5H-4073	[1]	RING ASSEM.
8F-5847	[6]	SCREEN ASSEM.
8F-5844	[3]	BOLT
5H-2581	[1]	HOUSING ASSEM.
5H-2580	[1]	CUP ASSEM.
1F-1781	[2]	ROD ASSEM.
3F-2671	[2]	NUT
4B-5270	[2]	WASHER
		(1 OF EACH IN EACH ROD ASSEM.)
8H-2021	[1]	PRECLEANER
8H-2022	[1]	COVER ASSEM.
8H-2023	[1]	BODY
4H-8448	[1]	PIPE ASSEM.
0S-1594	[2]	CAP SCREW
3B-4506	[2]	LOCKWASHER
4H-9258	[1]	BRACKET ASSEM.
1B-4205	[2]	NUT
3B-4508	[2]	LOCKWASHER
4F-8054	[1]	GASKET

#UE0325630021

AIR CLEANER

AIR CLEANER
Effective with Serial No. 12A6254
Note: 8F6118 Precleaner is available. For use on operations where there is a possibility of foreign material other than dust
being drawn into the Air Cleaner

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Parts for your 955C TRACK LOADER:

CATERPILLAR SIS

Part No	Qty	Parts name
7F-7562	[1]	PRE-CLEANER
5B-3323	[1]	RING
0S-1591	[1]	BOLT
1B-5355	[1]	NUT
5H-4074	[1]	AIR CLEANER
7F-7151	[2]	SEAL
5H-2582	[1]	TRAY ASSEM.
5H-4073	[1]	RING ASSEM.
8F-5847	[6]	SCREEN ASSEM.
5H-2581	[1]	HOUSING ASSEM.
5H-2580	[1]	CUP ASSEM.
1F-4094	[1]	CLAMP ASSEM.
		(PART OF PRE-CLEANER 7F7562)
1F-4095	[1]	CLAMP
1F-4096	[1]	BOLT
1F-4097	[1]	NUT
9B-8717	[1]	WASHER
		(PARTS OF ASSEM. 1F4094)
5F-6658	[1]	JAR
2F-5152	[1]	CLAMP
4F-8053	[1]	GASKET
1B-4205	[4]	NUT
3B-4508	[4]	LOCKWASHER
1F-1781	[2]	ROD ASSEM.
		(PART OF AIR CLEANER 5H4074)
3F-2671	[2]	NUT
4B-5270	[2]	WASHER
		(1 OF EACH IN EACH ASSEM. 1F1781)

#UE0325630022

AIR CLEANER

AIR CLEANER
Effective with Serial No. 12A6272
Note: 8F6118 Precleaner is available. For use on operations where there is a possibility of foreign material other than dust
being drawn into the Air Cleaner

c58691 UE032563

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Parts for your 955C TRACK LOADER:

CATERPILLAR SIS

Part No	Qty	Parts name
8H-2021	[1]	PRECLEANER
8H-2022	[1]	COVER ASSEM.
		(PART OF PRECLEANER 8H2021)
5H-4074	[1]	AIR CLEANER
7F-7151	[2]	SEAL
5H-2582	[1]	TRAY ASSEM.
5H-4073	[1]	RING ASSEM.
8F-5847	[6]	SCREEN ASSEM.
5H-2581	[1]	HOUSING ASSEM.
5H-2580	[1]	CUP ASSEM.
8H-2023	[1]	BODY
		(PART OF PRECLEANER 8H2021)
4F-8053	[1]	GASKET
1B-4205	[4]	NUT
3B-4508	[4]	LOCKWASHER
1F-1781	[2]	ROD ASSEM.
		(PART OF AIR CLEANER 5H4074)
3F-2671	[2]	NUT
4B-5270	[2]	WASHER
		(1 OF EACH IN EACH ROD ASSEM. 1F1781)

#UE0325630023

BREATHER AND OIL FILLER

BREATHER AND OIL FILLER
Effective with Serial No. 12A6464

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Parts for your 955C TRACK LOADER:

CATERPILLAR SIS

Part No	Qty	Parts name
1M-3503	[1]	COVER ASSEM.
		(NON-REMOVABLE ELEMENT)
		(CRENLO INC.)
		- OR -
1M-3473	[1]	COVER ASSEM.
1M-3474	[1]	ELEMENT
		(DONALDSON INC)
		(PARTS OF BREATHER ASSEM. 1M6123)
1M-6123	[1]	BREATHER ASSEM.
1M-6118	[1]	GASKET
2M-5393	[1]	ELBOW
0L-0912	[1]	CLAMP
0L-0905	[1]	COVER
0L-0906	[1]	GASKET
1B-5696	[1]	PIN
3B-4607	[2]	COTTER PIN
2F-2326	[1]	RETAINER
4B-1243	[1]	MACH SCREW
1D-4717	[2]	NUT
3B-4506	[2]	LOCKWASHER
1B-4203	[2]	NUT
3B-4506	[2]	LOCKWASHER
9F-7775	[1]	OIL FILLER
2A-5769	[1]	GASKET
0S-1594	[2]	BOLT
3B-4506	[2]	LOCKWASHER
4F-3392	[1]	GASKET

#UE0325630024

BREATHER AND OIL FILLER

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Parts for your 955C TRACK LOADER:

CATERPILLAR SIS

Part No	Qty	Parts name
2H-9688	[1]	BREATHER ASSEM.
9B-8714	[1]	SKIRT
2A-5769	[1]	GASKET
8F-4069	[1]	BASE
0L-0912	[1]	CLAMP
0L-0905	[1]	COVER
0L-0906	[1]	GASKET
1B-5696	[1]	PIN
3B-4611	[2]	COTTER PIN
2F-2326	[1]	RETAINER
4B-1243	[1]	MACH. SCREW
1B-4203	[2]	NUT
3B-4506	[2]	LOCKWASHER
9F-7775	[1]	OIL FILLER
0S-1594	[2]	CAP SCREW
3B-4506	[2]	LOCKWASHER
4F-3392	[1]	GASKET

#UE0325630025

OIL GAUGE, FUEL GAUGE AND HEAT INDICATOR

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Parts for your 955C TRACK LOADER:

CATERPILLAR SIS

Part No	Qty	Parts name
3H-2906	[1]	GAUGE (OIL)
7F-6429	[1]	AMMETER
2H-6791	[1]	INDICATOR (HEAT)
3B-9001	[1]	FITTING
4B-1221	[4]	SCREW
6B-6158	[1]	GAUGE
4F-8250	[1]	TUBE
1B-3057	[1]	CLIP
4B-6029	[1]	GROMMET
0L-1351	[1]	CAP SCREW
3B-4506	[1]	LOCKWASHER
1H-5166	[2]	CLIP
3H-8159	[1]	WIRE ASSEM.
3B-8998	[1]	FITTING
1F-1344	[1]	NUT
		(PART OF FITTING 3B8998)
8F-9569	[1]	TUBE
4B-0418	[1]	CLIP
		(SERIAL NO. 12A1 TO 12A 838)
		- OR -
1B-3057	[1]	CLIP
0L-1351	[1]	CAP SCREW
3B-4506	[1]	LOCKWASHER
		(SERIAL NO. 12A839-UP)
4B-4276	[1]	WASHER
4B-6029	[1]	GROMMET
2B-5721	[1]	GASKET
5B-1959	[1]	ADAPTER
9F-5321	[4]	TERMINAL
9F-5384	[4]	INSULATOR
		(2 OF EACH IN EACH ASSEM. 9F5392 & 3H8159)
1F-1344	[3]	NUT
		(1 IN EACH ASSEM. 3B9001 & 3B8998)
3B-8998	[2]	FITTING
9F-5392	[1]	WIRE ASSEM.

#UE0325630026

ACCESSORY SHAFT AND IDLER GEAR

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Parts for your 955C TRACK LOADER:

CATERPILLAR SIS

Part No	Qty	Parts name
4F-8484	[1]	GEAR (46 T.)
1A-9136	[3]	CAP SCREW
1A-2682	[3]	LOCK
2B-9900	[1]	PLATE
1B-8714	[1]	KEY
4F-7264	[1]	BEARING ASSEM.
2F-4547	[1]	DOWEL
		(PART OF BEARING ASSEM)
9B-0314	[1]	SHAFT (8 T & 14 T)
1F-2304	[1]	BUSHING
		(PART OF BEARING ASSEM)
2B-9899	[1]	WASHER
0S-0509	[2]	CAP SCREW (3/4" LONG)
	[1]	CAP SCREW (1 1/8" LONG)
0L-0364	[3]	LOCK
1F-2433	[1]	BUSHING
		(PART OF GEAR ASSEM)
2A-0053	[1]	NUT
2A-0054	[1]	LOCK
5B-3073	[1]	GEAR ASSEM (49 T)

#UE0325630027

COMPRESSION RELEASE CONTROL

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Parts for your 955C TRACK LOADER:

CATERPILLAR SIS

Part No	Qty	Parts name
4H-7746	[1]	HANDLE
1B-8701	[1]	KEY
3B-4617	[1]	COTTER PIN
1A-7615	[1]	WASHER
4H-7741	[1]	ROD ASSEM.
5B-2279	[2]	ROD END
		(PART OF ROD ASSEM.)
5B-4683	[1]	PIN
4H-7748	[1]	LEVER
1B-8701	[1]	KEY
4H-7747	[1]	SHAFT
2A-4996	[1]	BOLT
1B-4203	[1]	NUT
	[2]	PIN
3B-4607	[2]	COTTER PIN

#UE0325630028

CYLINDER HEAD AND VALVE MECHANISM

CYLINDER HEAD AND VALVE MECHANISM
Note: 2H5080 Valve Grinding Gasket Group is available
Refer also to Page 142 for special parts

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Parts for your 955C TRACK LOADER:

CATERPILLAR SIS

Part No	Qty	Parts name
4H-5190	[1]	SHAFT ASSEM.
5H-1190	[1]	SEAL
2A-3750	[1]	BOLT
3B-4504	[1]	LOCKWASHER
1A-8912	[1]	WASHER
4F-7000	[1]	BASE
4F-7002	[1]	GASKET
0S-1571	[1]	BOLT
3B-4506	[8]	LOCKWASHER
7B-2420	[3]	FERRULE
7B-2419	[3]	SEAL
6F-3245	[8]	ROD
0S-1616	[1]	BOLT
4F-7652	[1]	STOP
7B-7714	[1]	SPRING
6F-4210	[1]	PLUNGER
4F-7005	[1]	COVER
4F-7003	[1]	GASKET
1A-2935	[8]	SCREW
5B-9079	[8]	NUT
5B-2374	[4]	STUD
5B-2383	[4]	NUT
3F-9780	[4]	WASHER
8F-4994	[4]	SEAL
2A-3751	[2]	SPRING (9 COIL)
4F-7006	[1]	SPRING (12 COIL)
9H-2928	[4]	BRACKET
3B-0041	[2]	SPRING
3B-4618	[2]	COTTER PIN
0S-0107	[10]	WASHER
4F-6995	[1]	SHAFT ASSEM.
5B-1866	[2]	PLUG
		(PART OF SHAFT ASSEM. 4F6995)
5F-3112	[8]	SPRING (OUTER)
5F-3111	[8]	SPRING (INNER)
6B-6684	[5]	NUT
2M-0849	[4]	WASHER
0T-0431	[8]	WASHER
4F-5785	[4]	STUD
6B-6683	[16]	NUT
1H-7713	[15]	WASHER
5F-3109	[8]	RETAINER
2A-3291	[24]	LOCK
3B-0623	[5]	PLUG
6B-6222	[8]	DIRECTOR
		(PARTS OF HEAD ASSEM. 1H7657)
6B-6225	[8]	SEAL
6B-6224	[8]	FERRULE
4H-0621	[8]	BUSHING
		(PART OF HEAD ASSEM. 1H7657)
4F-7004	[1]	GASKET
4F-0212	[4]	VALVE (EXHAUST)
6H-3026	[4]	VALVE (INLET)
1H-7657 R	[1]	HEAD ASSEM.
1B-8702	[1]	KEY
4F-7685	[4]	ARM ASSEM (EXHAUST)
4F-7423	[4]	ARM ASSEM (INLET)
4F-0444	[8]	BUSHING
		(1 IN EACH ARM ASSEM. 4F7685 AND 4F7423)
1B-4205	[4]	NUT
0S-1594	[7]	BOLT
2H-3088	[4]	RING
4F-8517	[4]	CHAMBER ASSEM.
7H-0737	[4]	GASKET
1H-7653	[4]	RETAINER
4F-5607	[4]	RING
4F-3544	[8]	RING (SNAP)
6F-3242	[8]	LIFTER
R		REMFG PART MAY BE AVAILABLE

#UE0325630029

CYLINDER BLOCK AND COVERS

CYLINDER BLOCK AND COVERS--Side View--Part 1 of 2
Serial No. 12A1 to 12A6252 inclusive
5H1942 Cylinder Block Assembly parts are shown on Page 22. Note: 8H7233 Piston and Liner Group, 2H5091 Cylinder Liner and Piston Replacement
Gasket Group and 2H5080 Valve Grinding Gasket Group are available. Piston and Liner replacement require the use of 2H5091
and 2H5080 Gasket Groups

c51479 UE032563

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Parts for your 955C TRACK LOADER:

CATERPILLAR SIS

Part No	Qty	Parts name
4F-6466	[4]	LINER
7B-2124	[12]	SEAL
4F-7206	[4]	GASKET
9F-7776	[1]	GUIDE ASSEM.
0L-0659	[2]	STUD
		(PART OF GUIDE ASSEM.)
2B-7409	[1]	PLUG
2A-3791	[1]	SEAL
1B-4206	[2]	NUT
3B-4510	[2]	LOCKWASHER
2A-3630	[2]	DOWEL
0L-0468	[6]	STUD
		(PARTS OF ASSEM. 4H7734)
4H-7734	[1]	HOUSING ASSEM.
0S-1749	[3]	STUD (2" LONG)
0T-0398	[3]	STUD (1 5/16" LONG)
		(PARTS OF ASSEM. 4H7734)
1F-1227	[1]	BUSHING
2A-3658	[1]	BUSHING
1F-1226	[1]	BUSHING
		(PARTS OF ASSEM. 4H7734)
2B-7410	[1]	PLUG
0S-1614	[2]	CAP SCREW
1A-5702	[1]	LOCK
3B-0824	[1]	POINTER
2B-7557	[6]	CORK
1B-4206	[8]	NUT
2B-3734	[2]	LOCK (4 3/8" LONG)
2B-3726	[1]	LOCK (4 7/8" LONG)
2A-3710	[1]	LOCK (5 1/4" LONG)
5F-5978	[1]	COVER
		(PART OF ASSEM. 4H7734)
7H-1696	[1]	GASKET
1H-8590	[1]	GASKET
0S-1585	[4]	CAP SCREW
3B-4508	[4]	LOCKWASHER
4H-4772	[1]	COVER
4H-4792	[1]	GASKET
	[1]	GASKET
0S-1594	[6]	CAP SCREW
3B-4506	[6]	LOCKWASHER
5H-1942 Y	[1]	BLOCK ASSEM.
		(SEE SEPARATE ILLUS. FOR PARTS)
0S-1594	[8]	CAP SCREW
4F-1395	[3]	GUIDE
6F-8874	[4]	GASKET
4B-6697	[8]	CAP SCREW
3B-4506	[16]	LOCKWASHER
1A-6862	[3]	STUD (8 3/16" LONG)
4F-1450	[2]	STUD (1 11/16" LONG)
0L-0659	[2]	STUD (1 3/8" LONG)
		(PARTS OF ASSEM. 5H2453)
5H-2453	[1]	HOUSING ASSEM.
2A-3307	[1]	SEAL
2A-3349	[1]	FERRULE
5B-5812	[3]	DOWEL
		(PARTS OF ASSEM. 5H2453)
0S-1594	[13]	CAP SCREW
	[9]	LOCK
0S-2414	[1]	LOCK
4F-7333	[1]	SHAFT ASSEM.
		(PART OF ASSEM. 5H2453)
2A-3746	[1]	PLUG
		(PART OF ASSEM. 4F7333)
2A-3307	[1]	SEAL
2A-3349	[1]	FERRULE
0L-0638	[1]	LOCK
4F-7329	[1]	SHAFT ASSEM.
		(PART OF ASSEM. 5H2453)
1F-1006	[1]	DOWEL
		(PART OF ASSEM. 4F7329)
4F-7065	[1]	GASKET
8F-6974	[2]	CAP SCREW
3B-4506	[2]	LOCKWASHER
1D-4703	[1]	CAP SCREW
0T-0772	[2]	CAP SCREW
4F-8965	[15]	CAP SCREW
3B-4507	[20]	LOCKWASHER
0T-0772	[2]	BOLT
4H-6499	[1]	PAN
Y		SEPARATE ILLUSTRATION