6L4554 CARBURETOR ASSEMBLY--Natural Gas Part of Carburetor and Air Cleaner shown on Pages 28 and 28A G3306

FUEL SYSTEM

CARBURETOR GP

0. 6L-4554 CARBURETOR

BASIC ENGINE

MOUNTING GP-ENGINE

1. 1N-5571 ENGINE SUP

LUBRICATION SYSTEM

PUMP GP-ENGINE OIL

2. 8S-5022 OIL PUMP G
3. 7S-9461 OIL PUMP G
4. 7S-9461 OIL PUMP G
5. 7S-9461 OIL PUMP G
6. 7N-4715 OIL PUMP I
7. 6N-2820 OIL PUMP G

COOLING SYSTEM

COOLER GP

8. 7L-6925 FILTER AS-

LUBRICATION SYSTEM

FILLER GP-ENGINE OIL

9. OIL FILLER
0. INFORMATION

GAS ENGINE G3306 GAS ENGINE 68D
G333C OR 3306 ENGINE 68D00001-UP UEG0040S G3306 68D (1968)

FUEL SYSTEM

CARBURETOR GP

8L-4839 CARBURETOR CONTROL

6L-4554 CARBURETOR AS

8L-4352 CARBURETOR AND REGULATOR GROUP

#UEG0040S0090

6L-4554: CARBURETOR AS

CARBURETOR AS

6L4554 CARBURETOR ASSEMBLY--Natural Gas
Part of Carburetor and Air Cleaner shown on Pages 28 and 28A

c182508 UEG0040S

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Parts for your G3306 GAS ENGINE:

CATERPILLAR SIS

Part No	Qty	Parts name
		THE FOLLOWING REPAIR KITS ARE AVAILABLE:
6L-8062	[1]	KIT (Bearing)
		(Includes Seal, Retainer and Bearing)
1W-7086	[1]	KIT (Bearing)
		(Includes Seals and Bearing)
4B-1307	[5]	SCREW
7H-2079	[5]	LOCKWASHER
6L-8041	[1]	BASE ASSEM.
6L-5281	[1]	SPRING
6L-5288	[1]	DIAPHRAGM ASSEM.
6L-8042	[1]	SPRING (IDLE)
6L-8043	[1]	SCREW (IDLE)
6L-8044	[1]	GASKET
4B-1316	[4]	SCREW
1L-6314	[4]	LOCKWASHER
6L-8045	[1]	THROTTLE ASSEM.
6L-8048	[1]	LEVER ASSEM. (STOP)
6L-8046	[1]	SHAFT
6L-8047	[1]	DISC
6L-8049	[1]	LEVER ASSEM. (THROTTLE)
		(PARTS OF THROTTLE ASSEM. 6L8045)
6L-5283	[1]	COVER
6L-5296	[1]	SCREW (PIN)
		(PART OF THROTTLE ASSEM 6L8045)

#UEG0040S0091

1N-5571: ENGINE SUPPORT

ENGINE SUPPORT

ENGINE SUPPORT (1N5571 N/S)

c104883 UEG0040S

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Parts for your G3306 GAS ENGINE:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name	Comments
		[8]	BOLT
		[8]	LOCKWASHER
		[4]	BOLT
		[4]	LOCKWASHER
		[2]	SHIM
		[4]	NUT
		[2]	SUPPORT ASSEM. (FRONT)
		[2]	SUPPORT ASSEM. (REAR)

#UEG0040S0092

8S-5022: OIL PUMP GROUP

OIL PUMP GROUP

8S5022 OIL PUMP GROUP
Also part of 7L311 Engine Arrangement listed on Page 6A
7S9461 Pump parts are shown on Pages 30, 30A and 30A-1

c115887 UEG0040S

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Parts for your G3306 GAS ENGINE:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	0T-0102	[ 1]	BOLT
	0L-0364	[ 1]	LOCK
2.	0S-1590	[ 4]	BOLT
3.	6H-4208	[ 1]	LOCK
4.	7S-9461 Y	[ 1]	GEAR PUMP
5.	7H-1861	[ 2]	LOCK
6.	1A-2029	[ 2]	BOLT
7.	0T-0329	[ 1]	LOCK
8.	8M-0904	[ 1]	GASKET
9.	8S-8874	[ 1]	LOCK
10.	0S-1594	[ 2]	BOLT
11.	2P-2221	[ 1]	ELBOW ASSEM.
12.	4B-3938	[ 2]	PLUG
13.	7H-1796	[ 1]	GASKET
14.	8S-5015	[ 1]	BELL ASSEM.
			SEPARATE ILLUSTRATION

#UEG0040S0093

7S-9461: OIL PUMP GROUP

OIL PUMP GROUP

7S9461 OIL PUMP GROUP--Double Section
Serial No. 68D1 to 68D475 inclusive
Part of 8S5022 Oil Pump Group

c221371 UEG0040S

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Parts for your G3306 GAS ENGINE:

CATERPILLAR SIS

Part No	Qty	Parts name
8S-0488	[1]	BODY ASSEM.
8S-6511	[2]	BEARING
		(PART OF 8S488 BODY ASSEM.)
0L-1352	[2]	BOLT (3.25" LONG)
0L-0364	[2]	LOCK
0S-1619	[1]	BOLT (3"LONG)
5B-9603	[1]	BOLT (5"LONG)
8S-8871	[1]	LOCK
2H-3755	[2]	BOLT
2A-5328	[2]	LOCK
2S-9529	[1]	PLUNGER
1S-3921	[1]	SPRING
8S-0496	[1]	COVER
8S-0485	[1]	BODY ASSEM.
8S-0491	[2]	GEAR (8 TEETH)
8M-5599	[1]	KEY
8S-0486	[1]	SPACER
4B-9880	[1]	BALL
1F-1006	[1]	DOWEL
8S-6511	[2]	BEARING
		(PARTS OF 8S485 ASSEM.)
9S-1160	[1]	BEARING
		(PART OF 9S1179 GEAR ASSEM.)
7S-6309	[1]	SHAFT ASSEM.
		(PART OF 8S485 BODY ASSEM.)
6F-7172	[1]	DOWEL
		(PART OF 7S6309 SHAFT ASSEM.)
9S-1179 C	[1]	GEAR ASSEM.
		(60 TEETH-IDLER)
8S-0494	[1]	SHAFT ASSEM.
		(8 TEETH)
3B-6734	[1]	NUT
6B-0863	[1]	WASHER
3B-4617	[1]	COTTER PIN
8S-0497	[1]	GEAR
		(40 TEETH-DRIVE)
8S-0493	[1]	SHAFT ASSEM.
		(8 TEETH)
1M-3735	[2]	DOWEL
		(PART OF 8S488 BODY ASSEM.)
C		INDICATES CHANGE

#UEG0040S0094

7S-9461: OIL PUMP GROUP

OIL PUMP GROUP

7S9461 OIL PUMP GROUP--Double Section
Serial No. 68D476 to 68D1558 inclusive
Part of 8S5022 Oil Pump Group shown on Page 30

c221372 UEG0040S

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Parts for your G3306 GAS ENGINE:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	5B-9603	[1]	BOLT--12.70cm(5 in.) long
2.	0S-1619	[1]	BOLT--(7.62cm(3 in.) long
3.	0L-0364	[2]	LOCK
4.	0L-1352	[2]	BOLT--8.25cm(3.25 in.) long
5.	8S-8871	[1]	LOCK
6.	8S-0486 C	[1]	SPACER
7.	1B-8709 C	[1]	KEY
8.	9S-3040	[1]	SHAFT ASSEM.--(8 Teeth)
9.	8M-5599 C	[1]	KEY
10.	8S-0485	[1]	BODY ASSEM.
11.	1F-1006	[1]	DOWEL
12.	4B-9880	[1]	BALL
13.	8S-6511	[2]	BEARING
14.	7S-6309	[1]	SHAFT ASSEM.
15.	6F-7172	[1]	DOWEL
16.	8S-0497	[1]	GEAR--(40 Teeth-Drive)
17.	6B-0863	[1]	WASHER
18.	3B-6734	[1]	NUT
19.	3B-4617	[1]	COTTER PIN
20.	9S-1179 C	[1]	GEAR ASSEM.--(60 teeth)
21.	9S-1160	[1]	BEARING
22.	8S-0493	[1]	SHAFT ASSEM.--(8 Teeth)
23.	8S-0491	[2]	GEAR--(8 Teeth)
24.	8S-0488	[1]	BODY ASSEM.
25.	8S-6511	[2]	BEARING
26.	1M-3735	[2]	DOWEL
27.	2S-9529	[1]	PLUNGER
28.	1S-3921	[1]	SPRING
29.	8S-0496	[1]	COVER
30.	2H-3755	[2]	BOLT
31.	2A-5328	[2]	LOCK
	C		INDICATES CHANGE

#UEG0040S0095

7S-9461: OIL PUMP GROUP

OIL PUMP GROUP

7S9461 OIL PUMP GROUP--Double Section
Serial No. 68D1559-Up
Part of 8S5022 Oil Pump Group shown on Page 30
6N2820 Pump parts are shown on Page 30A-2

c158484 UEG0040S

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Parts for your G3306 GAS ENGINE:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	6N-2820 YC	[1]	PUMP GROUP
			(Separate Illustration)
2.	8M-5599	[1]	KEY
3.	8S-0497	[1]	GEAR (40 teeth drive)
4.	6B-0863	[1]	WASHER
5.	3B-4617	[1]	COTTER PIN
6.	9S-1179	[1]	GEAR ASSEM. (69 teeth idler)
			(Includes)
7.	9S-1160	[1]	BEARING
8.	3B-6734	[1]	NUT
	C		INDICATES CHANGE
	Y		SEPARATE ILLUSTRATION

#UEG0040S0096

7N-4715: OIL PUMP IDLER GEAR ASSEMBLY

OIL PUMP IDLER GEAR ASSEMBLY

7N4715 OIL PUMP IDLER GEAR ASSEMBLY
Field Replacement for 9S1179 shown on Page 30A-1

c175798 UEG0040S

7N4715 OIL PUMP IDLER GEAR ASSEMBLY Parts scheme

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Parts for your G3306 GAS ENGINE:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name	Comments
1.	7N-4714	[1]	GEAR (60 teeth)
2.	9S-1160	[1]	BEARING

#UEG0040S0097

6N-2820: OIL PUMP GROUP

OIL PUMP GROUP

6N2820 OIL PUMP GROUP--Double Section
Serial No. 68D1559-Up
Part of 7S9461 Oil Pump Group shown on Page 30A-1

c223571 UEG0040S

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Parts for your G3306 GAS ENGINE:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	5B-9603	[1]	BOLT 12.7 cm(5 in.) long
2.	0S-1619	[1]	BOLT 7.62 cm(3 in.) long
3.	0L-1352	[2]	BOLT 8.26 cm(3.25 in.) long
4.		[1]	SPACER
5.	1B-8709	[1]	KEY
6.	9S-3040	[1]	SHAFT ASSEM. (8 teeth)
7.	8S-0485 C	[1]	BODY ASSEM.
			(Includes)
8.	1F-1006	[1]	DOWEL
9.	4B-9880	[1]	BALL
10.	8S-6511	[2]	BEARING
11.	7S-6309	[1]	SHAFT ASSEM.
			(Includes)
12.	6F-7172	[1]	DOWEL
13.	8S-0493	[1]	SHAFT ASSEM.
14.	6N-1036	[2]	GEAR (8 teeth)
15.	8S-0488	[1]	BODY ASSEM.
			(Includes)
16.	8S-6511	[2]	BEARING
17.	1M-3735	[2]	DOWEL
18.	2S-9529	[1]	PLUNGER
19.	1S-3921	[1]	SPRING
20.	8S-0496	[1]	COVER
21.	2H-3755	[2]	BOLT
	C		INDICATES CHANGE

#UEG0040S0098

7L-6925: FILTER AS-OIL

FILTER AS-OIL

7L6925 OIL FILTER ASSEMBLY
Serial No. 68D1 to 68D325 inclusive
Part of Oil Cooler and Oil Filter shown on Page 32

c104870 UEG0040S

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Parts for your G3306 GAS ENGINE:

CATERPILLAR SIS

Pos.	Qty	Parts name
1.	[1]	ELEMENT ASSEM.
2.	[1]	GASKET
3.	[1]	SEAL
4.	[1]	WASHER
5.	[1]	BASE
6.	[1]	SCREW
7.	[1]	RING
8.	[1]	CASE ASSEM.
9.	[1]	RING
10.	[1]	SPRING
11.	[1]	PLUG
	[1]	GASKET
12.	[1]	RETAINER

#UEG0040S0099

OIL FILLER AND BREATHER GROUP

c104860 UEG0040S

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Parts for your G3306 GAS ENGINE:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	5L-2952	[1]	CAP ASSEM.
2.	6L-2609	[1]	SEAL
			(Part of 5L2952 Cap Assem.)
3.		[1]	HOSE
4.	7L-0497	[2]	CLAMP
5.	4L-9907	[1]	BREATHER ASSEM.
6.	4L-8231	[1]	GASKET
7.	1D-4717	[3]	NUT
8.	3B-4506	[6]	LOCKWASHER
9.	5S-8055	[2]	GASKET
10.	0L-1352	[2]	BOLT
11.	1A-5183	[1]	BOLT
12.	4B-4278	[3]	WASHER
13.	3S-3337	[1]	CLIP
14.	0S-0509	[1]	BOLT
15.	1S-0724	[1]	CLIP
16.	8L-5400	[1]	TUBE (Fumes Disposal)
17.	7L-0201	[1]	ELBOW
18.	8L-5399	[1]	SPACER