4L8800 WATER PUMP GROUP Serial No. 66B700 to 66B976 inclusive and 75B1 to 75B168 inclusive Refer also to Pages 117, 118, 122 and 123 for special parts D398

COOLING SYSTEM

PUMP GP-WATER

1. 4L-8800 PUMP GP-WA
2. 4L-8800 PUMP GP-WA
3. 4L-8800 PUMP GP-WA
4. 4L-8800 PUMP GP-WA

LINES GP-WATER

5. WATER LINE
6. WATER LINE

AIR INLET AND EXHAUST SYSTEM

AIR CLEANER GP

7. AIR CLEANE
8. AIR CLEANE
9. AIR CLEANE
0. INFORMATION

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

COOLING SYSTEM

PUMP GP-WATER

4L-8800 PUMP GP-WATER

6L-4754 RAW WATER PUMP GROUP

2N-9504 PUMP & LINES AR

2N-8301 PUMP GP-AUXILIARY LINES

2N-0955 PUMP GP-FRESH WATER

#UE0357100001

4L-8800: PUMP GP-WATER

PUMP GP-WATER

4L8800 WATER PUMP GROUP
Serial No. 66B700 to 66B976 inclusive and 75B1 to 75B168 inclusive
Refer also to Pages 117, 118, 122 and 123 for special parts

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Parts for your D398 INDUSTRIAL ENGINE:

CATERPILLAR SIS

Part No	Qty	Parts name
4L-9996	[1]	HOUSING ASSEM.
2H-5558	[1]	DOWEL
		(PART OF HOUSING ASSEM. 4L9996)
1H-8278	[1]	SEAL
5L-8203	[1]	IMPELLER ASSEM
3H-5841	[8]	BOLT
5L-5840	[8]	WASHER
6F-2691	[1]	WASHER
9H-2782	[1]	SEAL ASSEM
3H-2018	[1]	NUT
3F-2771	[1]	COTTER PIN
5F-9140	[1]	WASHER
6H-3491	[1]	BELLOW ASSEM.
		(PARTS OF SEAL ASSEM. 4F4769)
4F-4769	[1]	SEAL ASSEM.
4L-6231	[1]	COVER
6L-6857	[1]	THROWER
	[10]	GASKET
3F-1357	[1]	PLUG
5B-3265	[1]	GASKET
4L-3437	[1]	GASKET
0S-1571	[4]	BOLT
3B-4506	[4]	LOCKWASHER
7F-7510	[1]	LOCK
3B-1915	[1]	BOLT
4L-3761	[1]	RETAINER ASSEM.
5L-2660	[1]	BEARING
		(PART OF RETAINER ASSEM. 4L3761)
4L-6251	[1]	SHAFT
4L-3756	[1]	BEARING
0S-1571	[4]	BOLT
7F-7510	[4]	LOCK
5F-2422	[1]	SEAL
2H-5558	[1]	DOWEL
		(PART OF RETAINER ASSEM. 4L3761)
1A-2029	[2]	BOLT
5L-5840	[2]	WASHER
4L-9965	[1]	GASKET

#UE0357100002

4L-8800: PUMP GP-WATER

PUMP GP-WATER

4L8800 WATER PUMP GROUP
Serial No. 66B977 to 66B1346 inclusive and 75B169 to 75B335 inclusive
Refer also to Pages 117, 118, 122 and 123 for special parts

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Parts for your D398 INDUSTRIAL ENGINE:

CATERPILLAR SIS

Part No	Qty	Parts name
4L-9996	[1]	HOUSING ASSEM.
5B-9318	[1]	BALL
		(PART OF HOUSING ASSEM. 4L9996)
1H-8278	[1]	SEAL
5L-8203	[1]	IMPELLER ASSEM
3H-5841	[8]	BOLT
5L-5840	[8]	WASHER
6F-2691	[1]	WASHER
9H-2782	[1]	SEAL ASSEM
3H-2018	[1]	NUT
3F-2771	[1]	COTTER PIN
5F-9140	[1]	WASHER
6H-3491	[1]	BELLOW ASSEM.
		(PARTS OF SEAL ASSEM. 4F4769)
4F-4769	[1]	SEAL ASSEM.
4L-6231	[1]	COVER
4L-6706	[10]	GASKET
3F-1357	[1]	PLUG
5B-3265	[1]	GASKET
4L-3437	[1]	GASKET
0S-1571	[4]	BOLT
3B-4506	[4]	LOCKWASHER
7F-7510	[1]	LOCK
3B-1915	[1]	BOLT
4L-3761	[1]	RETAINER ASSEM.
5L-2660	[1]	BEARING
		(PART OF RETAINER ASSEM. 4L3761)
4L-6251	[1]	SHAFT
4L-3756	[1]	BEARING
0S-1571	[4]	BOLT
7F-7510	[4]	LOCK
5F-2422	[1]	SEAL
2H-5558	[1]	DOWEL
		(PART OF RETAINER ASSEM. 4L3761)
1A-2029	[2]	BOLT
5L-5840	[2]	WASHER
4L-9965	[1]	GASKET

#UE0357100003

4L-8800: PUMP GP-WATER

PUMP GP-WATER

4L8800 WATER PUMP GROUP
Serial No. 66B1347 to 66B1684 inclusive and 75B336 to 75B637, 75B639 to 75B658 inclusive
Refer also to Pages 117, 118, 122 and 123 for special parts. See Page 42B for Gasket Kit

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Parts for your D398 INDUSTRIAL ENGINE:

CATERPILLAR SIS

Part No	Qty	Parts name
4L-9996	[1]	HOUSING ASSEM.
5B-9318	[1]	BALL
		(PART OF HOUSING ASSEM. 4L9996)
1H-8278	[1]	SEAL
5L-8203 H	[1]	IMPELLER ASSEM
3H-5841	[8]	BOLT
5L-5840	[8]	WASHER
6F-2691 H	[1]	WASHER
2S-3966	[1]	RING
3S-3535	[1]	SEAL
3H-2018 H	[1]	NUT
3F-2771 H	[1]	COTTER PIN
5F-9140	[1]	WASHER
6H-3491	[1]	BELLOW ASSEM.
		(PARTS OF SEAL ASSEM. 4F4769)
4F-4769	[1]	SEAL ASSEM.
4L-6231	[1]	COVER
4L-6706	[10]	GASKET
3F-1357	[1]	PLUG
5B-3265	[1]	GASKET
8S-3117	[1]	WATER PUMP REBUILD KIT
		(CONSISTS OF PARTS MARKED H)
4L-3437	[1]	GASKET
0S-1571	[4]	BOLT
3B-4506	[4]	LOCKWASHER
7F-7510 H	[1]	LOCK
3B-1915	[1]	BOLT
4L-3761	[1]	RETAINER ASSEM.
5L-2660 H	[1]	BEARING
		(PART OF RETAINER ASSEM. 4L3761)
6L-9080 H	[1]	SHAFT
4L-3756 H	[1]	BEARING
0S-1571	[4]	BOLT
7F-7510 H	[4]	LOCK
5H-6012	[1]	SEAL
2H-5558	[1]	DOWEL
		(PART OF RETAINER ASSEM. 4L3761)
1A-2029	[2]	BOLT
5L-5840	[2]	WASHER
4L-9965	[1]	GASKET

#UE0357100004

4L-8800: PUMP GP-WATER

PUMP GP-WATER

4L8800 WATER PUMP GROUP
Serial No. 66B1685-Up and 75B638 and 75B659-Up
Refer also to Pages 116A through 120C, 122 & 123 for special parts. See Page 42B for Gasket Kit

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Parts for your D398 INDUSTRIAL ENGINE:

CATERPILLAR SIS

Part No	Qty	Parts name
7L-0143	[1]	HOUSING ASSEM.
5B-9318	[1]	BALL
		(PART OF HOUSING ASSEM. 7L143)
1H-8278	[1]	SEAL
7L-0104 H	[1]	IMPELLER
3H-5841	[8]	BOLT
5L-5840	[8]	WASHER
6F-2691 H	[1]	WASHER
2S-3966	[1]	RING
3S-3535	[1]	SEAL
3H-2018 H	[1]	NUT
3F-2771 H	[1]	COTTER PIN
9S-5168	[1]	WASHER
6H-3491	[1]	BELOW ASSEM.
		(PARTS OF SEAL ASSEM. 9S5169)
4N-7526	[1]	SEAL ASSEM.
4L-6231	[1]	COVER
4L-6706	[10]	GASKET
3F-1357	[1]	PLUG
5B-3265	[1]	GASKET
8S-3118	[1]	WATER PUMP REBUILT KIT
		(CONSISTS OF PARTS MARKED H)
4L-3437	[1]	GASKET
0S-1571	[4]	BOLT (1.75" long)
		-OR-
1C-2251 C	[4]	BOLT (1.875" long)
3B-4506	[4]	LOCKWASHER
3B-1915	[1]	BOLT
4L-3761	[1]	RETAINER ASSEM.
5L-2660 H	[1]	BEARING
		(PART OF RETAINER ASSEM. 4L3761)
6L-9080 H	[1]	SHAFT
4L-3756 H	[1]	BEARING
0S-1571	[4]	BOLT
2N-2560 C	[1]	SEAL
2H-5558	[1]	DOWEL
		(PART OF RETAINER ASSEM. 4L3761)
1A-2029	[2]	BOLT (1.125" long)
		-OR-
0S-1588 C	[2]	BOLT (1.25" long)
5L-5840	[2]	WASHER
4L-9965	[1]	GASKET
C		INDICATES CHANGE

#UE0357100005

WATER LINES

WATER LINES
Effective with Serial No. 66B700
PART OF 4L1127 S.A.E. STANDARD, 5L2664 AND 5L7149 S.A.E. OPPOSITE ROTATION TURBOCHARGED ENGINE ARRANGEMENTS
Refer also to Pages 121 and 124 through 126 for special parts

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Parts for your D398 INDUSTRIAL ENGINE:

CATERPILLAR SIS

Part No	Qty	Parts name
6L-4552	[2]	CLAMP
9M-5242	[1]	HOSE
4L-8728	[2]	COVER
5L-2508	[1]	BOX
0S-0509	[8]	BOLT
3B-4506	[8]	LOCKWASHER
4L-8128	[2]	GASKET
0S-1594	[4]	BOLT
3B-4506	[4]	LOCKWASHER
4L-8128	[3]	GASKET
0S-1588	[4]	BOLT
3B-4506	[4]	LOCKWASHER
6L-5366	[1]	GASKET
0S-1588	[2]	BOLT
3B-4506	[2]	LOCKWASHER
4L-6826	[1]	ELBOW
9M-9647	[1]	SEAL
6L-1650	[2]	SEAL
4L-7860	[1]	TUBE ASSEM.
3B-8996	[1]	FITTING
8F-8997	[1]	NUT
		(PART OF FITTING 3B8996)
5L-3544	[1]	TUBE
0S-1591	[1]	BOLT
3B-4506	[1]	LOCKWASHER
9F-8596	[1]	LUG
1F-3981	[1]	SPACER
4L-6234	[1]	ELBOW
4L-7885	[1]	GASKET
4L-6233	[1]	ELBOW
		(WATER PUMP INLET)
6L-4552	[2]	CLAMP
9M-5242	[1]	HOSE
3B-1915	[8]	BOLT
3B-4506	[8]	LOCKWASHER
0S-1588	[2]	BOLT
3B-4506	[2]	LOCKWASHER
6L-5304	[1]	GASKET
0S-1588	[4]	BOLT
3B-4506	[4]	LOCKWASHER
4L-5832	[1]	GASKET
4L-6232	[1]	ELBOW
4L-8734	[1]	PIPE
9M-4217	[1]	SEAL
4L-6731	[1]	ELBOW
1A-2029	[4]	BOLT
3B-4506	[4]	LOCKWASHER
0S-1571	[4]	BOLT
1D-4717	[4]	NUT
3B-4506	[4]	LOCKWASHER
5L-3542	[1]	TUBE
6L-5366	[1]	GASKET
1A-2029	[2]	BOLT
3B-4506	[2]	LOCKWASHER
4L-7888	[1]	TUBE ASSEM
3B-7724	[2]	BUSHING
3D-8884	[2]	ELBOW
3B-8996	[2]	FITTING
8F-8997	[2]	NUT
		(1 IN EACH FITTING 3B8996)
5L-3543	[1]	TUBE
8F-8997	[3]	NUT
		(PART OF FITTING 3B8994)
3B-8994	[1]	FITTING (TEE)
4L-6215	[1]	ELBOW
3J-5389	[1]	PLUG
0S-1619	[6]	BOLT
3B-4506	[6]	LOCKWASHER
4L-6216	[1]	GASKET

#UE0357100006

WATER LINES

WATER LINES
Effective with Serial No. 75B1
PART OF 6L4984 S.A.E. STANDARD, 5L2664 AND 5L7149 S.A.E. OPPOSITE ROTATION TURBOCHARGED ENGINE ARRANGEMENTS
Refer also to Pages 121 and 124 through 126 for special parts

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Parts for your D398 INDUSTRIAL ENGINE:

CATERPILLAR SIS

Part No	Qty	Parts name
6L-4552	[2]	CLAMP
9M-5242	[1]	HOSE
4L-8728	[2]	COVER
5L-2508	[1]	BOX
0S-0509	[8]	BOLT
3B-4506	[8]	LOCKWASHER
4L-8128	[1]	GASKET
0S-1594	[4]	BOLT
3B-4506	[4]	LOCKWASHER
4L-8128	[3]	GASKET
0S-1588	[4]	BOLT
3B-4506	[4]	LOCKWASHER
6L-5366	[1]	GASKET
0S-1588	[2]	BOLT
3B-4506	[2]	LOCKWASHER
4L-6826	[1]	ELBOW
2H-3927	[1]	SEAL
3H-2652	[2]	SEAL
4L-7860	[1]	TUBE ASSEM.
5M-6213	[1]	PLUG
0S-1591	[1]	BOLT
3B-4506	[1]	LOCKWASHER
9F-8596	[1]	LUG
1F-3981	[1]	SPACER
4L-6234	[1]	ELBOW
4L-7885	[1]	GASKET
4L-6233	[1]	ELBOW
		(WATER PUMP INLET)
6L-4552	[2]	CLAMP
9M-5242	[1]	HOSE
3B-1915	[8]	BOLT
3B-4506	[8]	LOCKWASHER
0S-1588	[2]	BOLT
3B-4506	[2]	LOCKWASHER
6L-5304	[1]	GASKET
0S-1588	[4]	BOLT
3B-4506	[4]	LOCKWASHER
4L-5832	[1]	GASKET
4L-6232	[1]	ELBOW
4L-8734	[1]	PIPE
8H-2046	[1]	SEAL
4L-6731	[1]	ELBOW
4L-8128	[1]	GASKET
1A-2029	[4]	BOLT
3B-4506	[4]	LOCKWASHER
6L-5366	[1]	GASKET
1A-2029	[2]	BOLT
3B-4506	[2]	LOCKWASHER
4L-7888	[1]	TUBE ASSEM.
4L-6215	[1]	ELBOW
3J-5389	[1]	PLUG
0S-1619	[6]	BOLT
3B-4506	[6]	LOCKWASHER
4L-6216	[1]	GASKET

#UE0357100007

AIR CLEANER

AIR CLEANER
SERIAL NO. 66B700 TO 66B1009 INCLUSIVE & 75B1 TO 75B188
INCLUSIVE. REFER ALSO TO PAGES 128 THRU 130A FOR SPECIAL PARTS

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Parts for your D398 INDUSTRIAL ENGINE:

CATERPILLAR SIS

Part No	Qty	Parts name
6L-4712	[2]	BASE ASSEM.
5M-6214	[2]	PLUG
6L-3438	[2]	RING
0S-1594	[16]	BOLT
3B-4506	[16]	LOCKWASHER
6L-3437	[2]	RING
0S-1588	[12]	BOLT
3B-4506	[12]	LOCKWASHER
6L-3439	[2]	ADAPTER
2M-5173	[2]	SEAL
6L-3529	[1]	SUPPORT
		(Right Hand Front)
6L-3530	[1]	SUPPORT
		(Left Hand Front)
6L-3503	[1]	SUPPORT
		(Right Hand Rear)
6L-3504	[1]	SUPPORT
		(Left Hand Rear)
0L-1351	[14]	BOLT
3B-4506	[14]	LOCKWASHER
6L-4680	[2]	SPRING
		(1 in each Base Assem. 6L4712)
6L-3436	[2]	DIAPHRAGM
6L-4713	[2]	DOOR ASSEM.
6L-4714	[2]	FILTER PANEL
3B-1915	[12]	BOLT
3B-4506	[12]	LOCKWASHER
4B-4278	[12]	WASHER
1J-7581	[12]	NUT
		(6 in each Base Assem. 6L4712)
3K-1470	[12]	SPACER
6L-4691	[12]	CLIP
		(6 in each Door Assem. 6L4713)
6L-4711	[12]	CLAMP ASSEM.
		(6 in each Base Assem. 6L4712)

#UE0357100008

AIR CLEANER

AIR CLEANER
SERIAL NO. 66B1010 TO 66B1414 INCLUSIVE AND 75B189 TO
75B374 INCLUSIVE. REFER ALSO TO PAGES 128
THROUGH 130 FOR SPECIAL PARTS

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Parts for your D398 INDUSTRIAL ENGINE:

CATERPILLAR SIS

Part No	Qty	Parts name
6L-4712	[2]	BODY ASSEM.
5M-6214	[2]	PLUG
6L-6573	[2]	RING
0S-1588	[24]	BOLT
3B-4506	[24]	LOCKWASHER
6L-3437	[2]	RING
0S-1594	[12]	BOLT
3B-4506	[12]	LOCKWASHER
6L-3439	[2]	ADAPTER
2M-5173	[2]	SEAL
6L-7615	[1]	SUPPORT ASSEM.
		(Right Hand Front)
6L-7616	[1]	SUPPORT ASSEM.
		(Left Hand Front)
6L-7617	[1]	SUPPORT ASSEM.
		(Right Hand Rear)
6L-7618	[1]	SUPPORT ASSEM.
		(Left Hand Rear)
0L-1351	[14]	BOLT
3B-4506	[14]	LOCKWASHER
6L-4680	[2]	SPRING
		(1 in each Body Assem. 6L4712)
6L-6569	[2]	DIAPHRAGM
6L-4713	[2]	COVER ASSEM.
6L-4714	[2]	FILTER PANEL
1A-2029	[12]	BOLT
3B-4506	[12]	LOCKWASHER
4B-4278	[12]	WASHER
1J-7581	[12]	NUT
		(6 in each Body Assem. 6L4712)
3K-1470	[12]	SPACER
6L-4691	[12]	CLIP
		(6 in each Cover Assem. 6L4713)
6L-4711	[12]	CLAMP ASSEM.
		(6 in each Body Assem. 6L4712)

#UE0357100009

AIR CLEANER

AIR CLEANER
Serial No. 66B1415 to 1525, 1527, 1528, 1530 and 66B1531 inclusive and
75B375 to 432, 434, 435, 437, 439, 441 to 445, 447 to 450, 452 to 454,
456 to 461, 463, 465 to 469, 471 to 473, 476, 477 and 75B479 inclusive
Refer also to Pages 128 through 130 for special parts

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Parts for your D398 INDUSTRIAL ENGINE:

CATERPILLAR SIS

Part No	Qty	Parts name
6L-4712	[2]	BODY ASSEM.
5M-6214	[4]	PLUG
6L-6573	[2]	RING
0S-1588	[22]	BOLT
3B-4506	[22]	LOCKWASHER
6L-3437	[2]	RING
0S-1594	[12]	BOLT
3B-4506	[12]	LOCKWASHER
6L-3439	[2]	ADAPTER
2M-5173	[2]	SEAL
0S-1591	[2]	BOLT
3B-4506	[2]	LOCKWASHER
6L-9440	[1]	BRACE
0S-0509	[1]	BOLT
3B-4506	[1]	LOCKWASHER
6L-9439	[1]	CHANNEL (Rear)
6L-9438	[1]	CHANNEL (Front)
0S-1571	[4]	BOLT
3B-4506	[4]	LOCKWASHER
6L-4680	[2]	SPRING
		(1 in each Body Assem. 6L4712)
6L-6569	[2]	DIAPHRAGM
6L-4713	[2]	COVER ASSEM.
6L-4714	[2]	FILTER PANEL
1A-5964	[4]	BOLT
1D-4717	[4]	NUT
3B-4506	[4]	LOCKWASHER
6L-9437	[2]	BRACKET
0S-0509	[8]	BOLT
3B-4506	[8]	LOCKWASHER
4B-4278	[8]	WASHER
1J-7581	[12]	NUT
		(6 in each Body Assem. 6L4712)
0L-1351	[6]	BOLT
1D-4717	[6]	NUT
3B-4506	[6]	LOCKWASHER
6L-4691	[12]	CLIP
		(6 in each Cover Assem. 6L4713)
6L-4711	[12]	CLAMP ASSEM.
		(6 in each Body Assem. 6L4712)