TURBOCHARGERS (6L2493 N/S)--Rear View Serial No. 75B840-Up Part of 6L4984 S.A.E. Standard and 5L7149 S.A.E. Opposite Standard Engine Rotation Turbocharged Engine Arrangements 1S9489 Turbocharger parts are shown on Page 25. Refer also to Pages 156 through 157B for special parts D398

AIR INLET AND EXHAUST SYSTEM

TURBOCHARGER GP

0. 6L-2493 TURBOCHARG
1. 2S-2489 TURBOCHARG
2. 2S-2489 TURBOCHARG
3. 1S-9489 TURBOCHARG
4. 6L-3174 TURBOCHARG

AFTERCOOLER GP

5. AFTERCOOLE
6. 4L-7643 AFTERCOOLE
7. 6L-8992 AFTERCOOLE
8. 6L-6292 AFTERCOOLE

MANIFOLD GP-EXHAUST

9. MANIFOLDS
0. INFORMATION

INDUSTRIAL ENGINE D398 INDUSTRIAL ENGINE 66B
D398 ENGINE 66B00700-02048 UE035710 D398 66B (1961)

AIR INLET AND EXHAUST SYSTEM

TURBOCHARGER GP

TURBOCHARGERS

6L-2493 TURBOCHARGER GP

2S-2489 TURBOCHARGER

1S-9489 TURBOCHARGER AS

#UE0357100020

6L-2493: TURBOCHARGER GP

TURBOCHARGER GP

TURBOCHARGERS (6L2493 N/S)--Rear View
Serial No. 75B840-Up
Part of 6L4984 S.A.E. Standard and 5L7149 S.A.E. Opposite Standard Engine Rotation Turbocharged Engine Arrangements
1S9489 Turbocharger parts are shown on Page 25. Refer also to Pages 156 through 157B for special parts

c131740 UE035710

For full view, you need register

Parts for your D398 INDUSTRIAL ENGINE:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	1B-5174	[1]	PLUG
2.	6L-2960	[4]	RING
3.	5L-9738	[2]	COUPLING
4.	6L-2961	[4]	RING
5.	9M-9939	[8]	LOCK
6.	1S-9489 Y	[2]	TURBOCHARGER ASSEM.
			(See Separate Illustration)
7.	7L-3195	[8]	BOLT
	8M-2296	[8]	NUT
8.	6L-2810	[1]	TUBE
9.	1S-4295	[2]	GASKET
10.	5L-4172	[1]	PIPE (Exhaust)
11.	9B-0887	[2]	PLUG (Drain)
12.	0S-1587	[12]	BOLT
	1B-5357	[12]	NUT
13.	8L-5975	[1]	TUBE
14.	1L-1118	[4]	FITTING
	8F-8998	[4]	NUT
			(1 in each 1L1118 Fitting)
15.	2B-1738	[8]	LOCK
16.	5L-3773	[1]	GASKET
17.	5L-4182	[1]	EXTENSION
18.	7L-7160	[2]	HOSE
19.	4J-8536	[2]	CLAMP
20.	4L-7932	[2]	CLAMP
	Y		SEPARATE ILLUSTRATION

#UE0357100021

2S-2489: TURBOCHARGER

TURBOCHARGER

2S2489 TURBOCHARGER ASSEMBLY--2 Assemblies Required--Type 1
Part of Turbochargers shown on Pages 20, 20A, 20B and 21
FOR USE WITH 6L4984 STANDARD ROTATION TURBOCHARGED ENGINE ARRANGEMENT
Also available as an attachment for Serial No. 75B1-Up

c143384 UE035710

For full view, you need register

Parts for your D398 INDUSTRIAL ENGINE:

CATERPILLAR SIS

Part No	Qty	Parts name
2S-1304 H	[1]	CLAMP
7M-9918 H	[1]	NUT
9M-9545	[1]	SEAL
1S-7115	[2]	BOLT (Drilled Hole)
1S-7114	[6]	BOLT
9M-9939	[4]	PLATE (Lock)
2S-1309	[1]	HOUSING
9S-1517 H	[1]	HOUSING
9M-9928 H	[1]	NOZZLE
9M-9938	[1]	PLATE
4M-6990	[1]	RING
4S-9248 C	[2]	RING
1S-3887	[1]	WASHER
2S-1530 R	[1]	SHAFT AND WHEEL ASSEM.
2S-1507	[1]	PLATE (Name)
8H-3710	[1]	SCREW
		(Not Shown)
2S-1301	[1]	CARTRIDGE ASSEM.
		(Consists of All Parts Except Those Marked H)
8S-4048 H	[1]	COVER
7M-7611	[3]	RING
8H-3710 H	[2]	SCREW
7M-9920 H	[1]	PLATE (Name)
2S-1186	[1]	BEARING
7M-9910	[3]	BOLT
7M-9919	[3]	PLATE (Lock)
2S-1310	[1]	SPACER
7M-9908	[1]	SLEEVE
3S-5854	[1]	BEARING GROUP
	[1]	BEARING
		(Grooved)
	[1]	BEARING
		(Plain)
4M-8012	[1]	NUT
8M-7167	[1]	SHIM (.003" Thick)
8M-7168	[1]	SHIM (.005" Thick)
8M-7169	[1]	SHIM (.010" Thick)
4M-8013 C	[2]	RING
2S-1302	[1]	WHEEL
7M-9923	[1]	SPACER
2S-1185	[2]	RING
2S-1307	[1]	RING
2S-1305	[1]	INSERT
3S-1427	[1]	SEAL
2S-1308	[1]	DEFLECTOR
C		INDICATES CHANGE
R		REMFG PART MAY BE AVAILABLE

#UE0357100022

2S-2489: TURBOCHARGER

TURBOCHARGER

2S2489 TURBOCHARGER ASSEMBLY--2 Assemblies Required--Type 2
Part of Turbochargers shown on Pages 20, 20A, 20B and 21
FOR USE WITH 6L4984 STANDARD ROTATION TURBOCHARGED ENGINE ARRANGEMENT
Also available as an Attachment for Serial No. 75B1-Up

c143385 UE035710

For full view, you need register

Parts for your D398 INDUSTRIAL ENGINE:

CATERPILLAR SIS

Part No	Qty	Parts name
2S-1304 H	[1]	CLAMP
7M-9918 H	[1]	NUT
9M-9545	[1]	SEAL
1S-7115	[2]	BOLT (Drilled Hole)
1S-7114	[6]	BOLT
9M-9939	[4]	PLATE (Lock)
4N-4042 R	[1]	HOUSING
9S-1517 H	[1]	HOUSING
9M-9928 H	[1]	NOZZLE
9M-9938	[1]	PLATE
4M-6990	[1]	RING
4S-9248	[2]	RING
1S-3887	[1]	WASHER
2S-1530 R	[1]	SHAFT AND WHEEL ASSEM.
2S-1507	[1]	PLATE (Name)
8H-3710	[1]	SCREW
		(Not Shown)
4N-4040 RC	[1]	CARTRIDGE ASSEM.
		(Consists of All Parts Except Those Marked H)
8S-4048 H	[1]	COVER
7M-7611	[3]	RING
8H-3710 H	[2]	SCREW
7M-9920 H	[1]	PLATE (Name)
2S-1186	[1]	BEARING
7M-9910	[3]	BOLT
7M-9919	[3]	PLATE (Lock)
2S-1310	[1]	SPACER
7M-9908	[1]	SLEEVE
3S-5854	[1]	BEARING GROUP
	[1]	BEARING
		(Grooved)
	[1]	BEARING
		(Plain)
4M-8012	[1]	NUT
8M-7167	[1]	SHIM (.003" Thick)
8M-7168	[1]	SHIM (.005" Thick)
8M-7169	[1]	SHIM (.010" Thick)
4M-8013	[2]	RING
2S-1302	[1]	WHEEL
7M-9923	[1]	SPACER
2S-1185	[2]	RING
2S-1307	[1]	RING
2S-1305	[1]	INSERT
3S-1427	[1]	SEAL
2S-1308	[1]	DEFLECTOR
C		INDICATES CHANGE
R		REMFG PART MAY BE AVAILABLE

#UE0357100023

1S-9489: TURBOCHARGER AS

TURBOCHARGER AS

1S9489 TURBOCHARGER ASSEMBLY--2 Assemblies Required
Part of Turbochargers shown on Pages 22 and 23

c93763 UE035710

For full view, you need register

Parts for your D398 INDUSTRIAL ENGINE:

CATERPILLAR SIS

Part No	Qty	Parts name
2S-1304 H	[1]	CLAMP
7M-9918 H	[1]	NUT
9M-9545	[1]	SEAL
1S-7115	[2]	BOLT (Drilled Hole)
1S-7114	[6]	BOLT
9M-9939	[4]	PLATE (Lock)
2S-1309	[1]	HOUSING
2S-1299 H	[1]	HOUSING
1S-6563 H	[1]	NOZZLE
9M-9938	[1]	PLATE
4M-6990	[1]	RING
4M-8013	[2]	RING
1S-3887	[1]	WASHER
2S-1530 R	[1]	SHAFT AND WHEEL ASSEM.
2S-1507	[1]	PLATE (Name)
8H-3710	[1]	SCREW
		(Not Shown)
2S-1301	[1]	CARTRIDGE ASSEM.
		(Consists of All Parts Except Those Marked h)
2S-1298 H	[1]	COVER
7M-7611	[3]	RING
3S-4006	[2]	BEARING
8H-3710 H	[2]	SCREW
7M-9920 H	[1]	PLATE (Name)
2S-1186	[1]	BEARING
7M-9910	[3]	BOLT
7M-9919	[3]	PLATE (Lock)
2S-1310	[1]	SPACER
7M-9908	[1]	SLEEVE
4M-8012	[1]	NUT
8M-7167	[1]	SHIM (.003" Thick)
8M-7168	[1]	SHIM (.005" Thick)
8M-7169	[1]	SHIM (.010" Thick)
4M-8013	[2]	RING
2S-1302	[1]	WHEEL
7M-9923	[1]	SPACER
2S-1185	[2]	RING
2S-1307	[1]	RING
2S-1305	[1]	INSERT
3S-1427	[1]	SEAL
2S-1308	[1]	DEFLECTOR
R		REMFG PART MAY BE AVAILABLE

#UE0357100024

6L-3174: TURBOCHARGER LUBRICATION VALVE GROUP

TURBOCHARGER LUBRICATION VALVE GROUP

6L3174 TURBOCHARGER LUBRICATION VALVE GROUP

c104849 UE035710

For full view, you need register

Parts for your D398 INDUSTRIAL ENGINE:

CATERPILLAR SIS

Part No	Qty	Parts name
1S-6595	[2]	GASKET
0S-1591	[4]	BOLT
3B-4506	[4]	LOCKWASHER
8F-9362	[3]	NUT
		(PART OF FITTING 5L9378)
6L-3173	[1]	TUBE
8F-8513	[2]	CLIP (1.25" LONG)
8F-9362	[1]	NUT
		(PART OF FITTING 1F6068)
1F-6068	[1]	FITTING
1H-1363	[1]	ELBOW
5L-7705	[1]	TUBE
8F-9362	[1]	NUT
		(PART OF FITTING 1F6068)
1F-6068	[1]	FITTING
6L-3209	[1]	TUBE ASSEM.
		(RIGHT HAND)
6L-3210	[1]	TUBE ASSEM.
		(LEFT HAND)
8M-5942	[1]	ADAPTER
7M-6843	[1]	GASKET
5L-9378	[1]	FITTING
5M-6213	[3]	PLUG
8F-9362	[1]	NUT
		(PART OF FITTING 1F6068)
1F-6068	[1]	FITTING
1H-1363	[1]	ELBOW
7M-6842	[1]	PLUNGER
7M-6855	[1]	BODY
7M-6124	[1]	SPRING
7M-6844	[1]	GASKET
9B-3582	[1]	FITTING
8F-9362	[1]	NUT
		(PART OF FITTING 9B3582)
5L-7287	[1]	TUBE
1D-4706	[4]	BOLT
3B-4506	[4]	LOCKWASHER
1F-6068	[1]	FITTING
8F-9362	[1]	NUT
		(PART OF FITTING 1F6068)
1H-1363	[1]	ELBOW

#UE0357100025

AFTERCOOLER

AFTERCOOLER
SERIAL NO. 66B700 TO 66B1414 & 75B1 TO 75B374 INCLUSIVE
REFER ALSO TO PAGES 127 AND 128 FOR SPECIAL PARTS

c75322 UE035710

For full view, you need register

Parts for your D398 INDUSTRIAL ENGINE:

CATERPILLAR SIS

Part No	Qty	Parts name
3B-8998	[1]	FITTING
1F-1344	[1]	NUT
		(PART OF FITTING 3B8998)
0S-1588	[4]	BOLT
3B-4506	[4]	LOCKWASHER
4B-4278	[4]	WASHER
0S-1588	[6]	BOLT (1.250" LONG)
3B-4506	[6]	LOCKWASHER
0S-1594	[44]	BOLT
3B-4506	[44]	LOCKWASHER
4B-4278	[44]	WASHER
4L-7900	[2]	GASKET
4L-7643 Y	[1]	AFTERCOOLER ASSEM.
		(SEE SEPARATE ILLUSTRATION)
4L-6252	[2]	COVER
0L-1351	[8]	BOLT
4B-5167	[8]	WASHER
0T-0573	[6]	BOLT
3B-4506	[6]	LOCKWASHER
3H-6591	[2]	BOLT
3L-6789	[2]	LOCKWASHER
4L-7904	[2]	GASKET
4L-8130	[1]	DIRECTOR
6F-7031	[4]	BOLT (3" LONG)
3B-4506	[4]	LOCKWASHER
5B-3850	[4]	WASHER
Y		SEPARATE ILLUSTRATION

#UE0357100026

4L-7643: AFTERCOOLER ASSEMBLY

AFTERCOOLER ASSEMBLY

4L7643 AFTERCOOLER ASSEMBLY
PART OF AFTERCOOLER

c91683 UE035710

4L7643 AFTERCOOLER ASSEMBLY Parts scheme

For full view, you need register

Parts for your D398 INDUSTRIAL ENGINE:

CATERPILLAR SIS

Part No	Qty	Parts name
0S-1591	[12]	BOLT
1D-4717	[12]	NUT
3B-4506	[12]	LOCKWASHER
0L-0639	[8]	BOLT
3B-4506	[8]	LOCKWASHER
0T-0573	[12]	BOLT
1D-4717	[12]	NUT
3B-4506	[12]	LOCKWASHER
5B-2208	[16]	BOLT
3B-4506	[16]	LOCKWASHER
4L-7641	[4]	STRIP
5L-6751	[1]	BOX ASSEM.
	[2]	SIDE
	[1]	COVER
	[1]	BASE
		(PARTS OF BOX ASSEM. 5L6751)
3J-1588	[6]	BOLT
3B-4506	[6]	LOCKWASHER
4L-7642	[4]	GASKET
4L-7644	[2]	GASKET
5L-6737	[4]	GASKET
		(PARTS OF BOX ASSEM. 5L6751)

#UE0357100027

6L-8992: AFTERCOOLER CONNECTIONS

AFTERCOOLER CONNECTIONS

AFTERCOOLER CONNECTIONS (6L8992 N/S)
Serial No. 66B1415-Up and 75B375-Up

c140460 UE035710

6L8992 AFTERCOOLER CONNECTIONS Parts scheme

For full view, you need register

Parts for your D398 INDUSTRIAL ENGINE:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	6L-8751	[8]	CLIP
2.	0S-1591	[8]	BOLT
3.	3B-4506	[18]	LOCKWASHER
4.	6L-8758	[1]	TUBE ASSEM. (Outlet)
5.	6L-4855	[2]	HOSE
6.	9M-7959	[4]	CLAMP
7.	6L-8759	[1]	ELBOW
8.	0S-1594	[4]	BOLT
9.	8M-2331	[2]	GASKET
10.	6L-1877 C	[1]	PLATE
11.	4L-6216	[2]	GASKET
12.	6L-8986	[1]	HOUSING
13.	4F-0411	[6]	BOLT
14.	6L-8760	[1]	ELBOW
15.	6L-8757	[1]	TUBE ASSEM. (Inlet)
	C		INDICATES CHANGE

#UE0357100028

6L-6292: AFTERCOOLER GP-JACKET WATER

AFTERCOOLER GP-JACKET WATER

6L6292 AFTERCOOLER GROUP--Jacket Water
Serial No. 66B1415-Up and 75B375-Up
Refer also to Pages 126H, 126J, 126K & 128A for special parts

c108641 UE035710

6L6292 AFTERCOOLER GP-JACKET WATER Parts scheme

For full view, you need register

Parts for your D398 INDUSTRIAL ENGINE:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	5H-6733	[6]	SEAL
2.	0S-1591	[37]	BOLT (1.50" Long)
3.	3B-4506	[60]	LOCKWASHER
4.	4B-4278	[32]	WASHER
5.	6L-6482	[1]	ELBOW
6.	6L-8166	[4]	SEAL
7.	6L-6484	[1]	PIPE
8.	6L-8167	[4]	SEAL
9.	6L-6487	[4]	GASKET
10.	5L-7631	[4]	CLAMP
11.	6L-6293	[1]	HOUSING
12.	4F-0411	[3]	BOLT
13.	1D-4717	[12]	NUT
14.	9F-4446	[4]	SEAL
15.	2H-2665	[8]	SEAL
16.	6L-8751	[4]	CLIP
17.	0S-1594	[6]	BOLT (1.00" Long)
18.	6L-6491	[1]	PIPE
19.	6L-6483	[1]	PIPE
20.	6L-6481	[2]	ELBOW
21.	6L-6485	[1]	ELBOW
22.	6L-6480	[2]	GASKET
23.	6L-6494	[2]	PLATE
24.	4L-7904	[2]	GASKET
25.	6L-6294	[1]	HOUSING
26.	6L-6297	[1]	CORE ASSEM.
	6L-6295	[1]	CORE ASSEM.
27.	6L-6489	[4]	GASKET
28.	6L-6488	[4]	FLANGE
29.	6L-6490	[4]	SLEEVE
30.	6L-6486	[1]	ELBOW
31.	6L-6493	[1]	LOCK
32.	1A-2029	[1]	BOLT
	1S-6908	[1]	PLATE
33.	0S-1591	[1]	BOLT (1.50" long)
	0S-1571	[12]	BOLT (1.75" long)
			-OR-
	0S-1571	[13]	BOLT (1.75" long)

#UE0357100029

MANIFOLDS

MANIFOLDS--Top View
Serial No. 66B700 to 66B785, 66B787 and 66B788 inclusive
PART OF 4L1127 S.A.E. STANDARD 5L2664 AND 5L7149 S.A.E. OPPOSITE ROTATION TURBOCHARGED ENGINE ARRANGEMENTS
Refer also to Page 142 for special parts

c90633 UE035710

For full view, you need register

Parts for your D398 INDUSTRIAL ENGINE:

CATERPILLAR SIS

Part No	Qty	Parts name
4L-7890	[2]	GASKET
4L-6200	[2]	HOUSING
5M-6213	[2]	PLUG
4L-3020	[12]	GASKET
0S-1591	[8]	BOLT
1D-4717	[8]	NUT
3B-4506	[8]	LOCKWASHER
4L-6258	[1]	SUPPORT (L.H.)
4L-7603	[4]	LIFTING EYE
4L-6145	[4]	GASKET
0S-1595	[8]	BOLT (1.250" LONG)
3B-4508	[8]	LOCKWASHER
0S-1573	[24]	BOLT (4" LONG)
3B-4508	[24]	LOCKWASHER
1D-4572	[24]	BOLT (5.500" LONG)
3B-4508	[24]	LOCKWASHER
5L-2307	[1]	TUBE
0S-1585	[24]	BOLT (1.500" LONG)
3B-4508	[24]	LOCKWASHER
5L-8818	[2]	GASKET
3B-8998	[1]	FITTING
1F-1344	[1]	NUT
		(PART OF FITTING 3B8998)
4L-6257	[1]	SUPPORT (R.H.)
1A-2029	[24]	BOLT
3B-4506	[24]	LOCKWASHER
2B-7457	[2]	PLUG
		(MOUNTED ON REAR OF CYLINDER BLOCK)
4L-6195	[2]	ELBOW
5H-6733	[8]	SEAL
0S-1588	[12]	BOLT
3B-4506	[12]	LOCKWASHER
4L-3307	[12]	ELBOW
2H-3927	[12]	SEAL
5L-8818	[2]	GASKET
0S-1571	[18]	BOLT
1D-4717	[18]	NUT
3B-4506	[18]	LOCKWASHER
6L-4112	[2]	MANIFOLD (EX.)
3B-0551	[6]	PLUG (DRAIN)
4H-5952	[12]	GASKET
4L-8097	[12]	GASKET
0S-1585	[34]	BOLT
9B-0453	[34]	LOCKWASHER
0S-1588	[12]	BOLT
9F-5644	[12]	LOCKWASHER
4L-3378	[2]	COVER
4L-7890	[2]	GASKET
0T-0065	[12]	BOLT
3B-4506	[12]	LOCKWASHER
2H-1193	[1]	FERRULE
		(PART OF HOUSING ASSEM. 4L8102)
4L-7907	[2]	GASKET
4L-8102	[1]	HOUSING ASSEM. (L.H.)
2M-1538	[3]	STUD
		(PART OF HOUSING ASSEM. 4L8102)
1D-4717	[3]	NUT
3B-4506	[3]	LOCKWASHER
1B-5174	[1]	PLUG (PIPE)
4L-6144	[4]	COVER
4L-6145	[4]	GASKET
0S-1595	[22]	BOLT
3B-4508	[22]	LOCKWASHER
6L-4113	[2]	MANIFOLD (EX.)
3B-0551	[4]	PLUG (DRAIN)
2B-5803	[1]	PLUG
	[1]	GASKET
5L-8818	[2]	GASKET
0S-1591	[8]	BOLT
1D-4717	[8]	NUT
3B-4506	[8]	LOCKWASHER
4L-8101	[1]	HOUSING ASSEM. (R.H.)
2H-1193	[1]	FERRULE
		(PART OF HOUSING ASSEM. 4L8101)
6L-1880	[2]	COVER
6L-5851	[4]	REGULATOR
4L-8098	[4]	SEAL
0S-1595	[2]	BOLT
3B-4508	[2]	LOCKWASHER
1A-2029	[3]	BOLT
3B-4506	[3]	LOCKWASHER
6L-4640	[2]	SUPPORT
1D-4716	[2]	NUT
4L-6193	[2]	MANIFOLD (INTAKE)