MECHANICAL TACHOMETERS ENGINE MOUNTED D398A MARINE ENGINE

OPERATOR STATION

TACHOMETER GP

0. MECHANICAL
1. 3N-6871 TACHOMETER
2. 3N-6871 TACHOMETER
3. 4L-2353 TACHOMETER
4. 5N-8754 TACHOMETER
5. 7E-3157 TACHOMETER
6. 7E-3156 TACHOMETER
7. 4W-4973 TACHOMETER
8. 7C-4357 TACHOMETER

ELECTRICAL AND STARTING SYSTEM

SENSOR GP

9. 5N-8757 MAGNETIC P
0. INFORMATION

MARINE ENGINE D398A MARINE ENGINE 67B
D398B MARINE ENGINE 67B01391-UP UEG0646S D398A 67B (1961)

OPERATOR STATION

TACHOMETER GP

7L-3086 ELECTRIC TACHOMETER GROUP

MECHANICAL TACHOMETERS

3N-6871 TACHOMETER GP-ELECTRIC

4L-2353 TACHOMETER GP-ELECTRIC

#UEG0646S0660

MECHANICAL TACHOMETERS

MECHANICAL TACHOMETERS
ENGINE MOUNTED

UEG0646S0660 UEG0646S

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Parts for your D398A MARINE ENGINE:

CATERPILLAR SIS

Part No	Qty	Parts name
7L-4535 Y	[1]	TACHOMETER MOUNTING GROUP
3M-9766	[1]	TACHOMETER
1L-9112	[1]	ADAPTER
6H-4293	[1]	FLEXIBLE SHAFT 50 INCHES
1S-9389	[1]	FLEXIBLE SHAFT 79 INCHES
Y		SEPARATE ILLUSTRATION

#UEG0646S0661

3N-6871: TACHOMETER GP-ELECTRIC

TACHOMETER GP-ELECTRIC

3N6871 TACHOMETER GP-ELECTRIC
Type 1
For Field Replacement Order 7C4357-Page 104D

c119242 UEG0646S

3N6871 TACHOMETER GP-ELECTRIC Parts scheme

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Parts for your D398A MARINE ENGINE:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	3N-4430	[1]	SENDING UNIT AS
2.	3N-6918	[1]	TANG-DRIVE
3.	3N-6916	[1]	NUT
4.	3N-6917	[1]	CAP
	1H-1023	[2]	SEAL-O-RING
5.	3N-7288	[1]	TACHOMETER-ELECTRIC
6.	3N-4431	[1]	HARNESS AS-WIRE

#UEG0646S0662

3N-6871: TACHOMETER GP-ELECTRIC

TACHOMETER GP-ELECTRIC

3N6871 TACHOMETER GP-ELECTRIC
Replaced By 5N8754-Page 104B
Type 2
For Field Replacement Order 7C4357-Page 104D

c232342 UEG0646S

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Parts for your D398A MARINE ENGINE:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	5N-8176 C	[1]	SENDER AS (TACHOMETER)
2.	3N-6918	[1]	TANG-DRIVE
3.	3N-6916	[1]	NUT
4.	3N-6917	[1]	CAP
	1H-1023	[2]	SEAL-O-RING
5.	7N-9738	[1]	HOUSING-RECEPTACLE
	7N-7780	[1]	PIN-CONNECTOR
	7N-7779	[1]	SOCKET
6.	3N-7288	[1]	TACHOMETER-ELECTRIC
7.	5N-8209 C	[1]	HARNESS AS
	5P-5677 BD		WIRE (18 GA)
	7N-9017	[2]	TERMINAL
8.	7N-9737	[1]	HOUSING-PLUG
	7N-7780	[1]	PIN-CONNECTOR
	7N-7779	[1]	SOCKET
	B		USE AS REQUIRED
	C		CHANGE FROM PREVIOUS TYPE
	D		ORDER BY THE METER

#UEG0646S0663

4L-2353: TACHOMETER GP-ELECTRIC

TACHOMETER GP-ELECTRIC

4L2353 TACHOMETER GP-ELECTRIC-Type 2
Replaced By 5N8754-Page 104B
Type 2

c149121 UEG0646S

4L2353 TACHOMETER GP-ELECTRIC Parts scheme

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Parts for your D398A MARINE ENGINE:

CATERPILLAR SIS

Part No	Qty	Parts name
4L-1706	[1]	TACHOMETER
3N-7615 C	[1]	TRANSMITTER ASSEM
1L-6466	[1]	TANG
2L-8075	[6]	TERMINAL
		(PART OF 3N7616 ASSEM.)
3N-7616 C	[1]	LEAD ASSEM.
4S-8787 H		WIRE (14 GAUGE)
		(PART OF 3N7616 ASSEM.)
3L-6649	[1]	POWER UNIT
5L-9829	[2]	BATTERY
		(PART OF POWER UNIT 3L6649)
C		INDICATES CHANGE
H		ORDER BY THE FOOT

#UEG0646S0664

5N-8754: TACHOMETER GP-ELECTRIC

TACHOMETER GP-ELECTRIC

5N8754 TACHOMETER GP-ELECTRIC
183 Tooth Pick-Up
Replaced By 7E3157-Page 104B.01

c460885 UEG0646S

5N8754 TACHOMETER GP-ELECTRIC Parts scheme

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Parts for your D398A MARINE ENGINE:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	3T-2164	[1]	BOARD
2.	9B-7242	[2]	SCREW-MACHINE
3.	3T-2159	[1]	TACHOMETER
4.	6V-2744 E		WIRE 366CM(144.1IN.)
5.	9G-3186	[5]	TERMINAL-SPADE
	B	[1]	DIAGRAM-WIRING
	B		USE AS REQUIRED
	E		ORDER BY THE CENTIMETER

#UEG0646S0665

7E-3157: TACHOMETER GP-ELECTRIC

TACHOMETER GP-ELECTRIC

7E3157 TACHOMETER GP--ELECTRIC

c489151 UEG0646S

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Parts for your D398A MARINE ENGINE:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	9X-1117	[1]	TACHOMETER
2.	9G-3186	[5]	TERMINAL-SPADE
3.	6V-2744 E		WIRE (18 GA) 366CM
	E		ORDER BY THE CENTIMETER

#UEG0646S0666

7E-3156: TACHOMETER GP-ELECTRIC

TACHOMETER GP-ELECTRIC

7E3156 TACHOMETER GP--ELECTRIC
Lighted

c487667 UEG0646S

7E3156 TACHOMETER GP-ELECTRIC Parts scheme

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Parts for your D398A MARINE ENGINE:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name	Comments
1.	9X-1116	[1]	TACHOMETER

#UEG0646S0667

4W-4973: TACHOMETER GP-ELECTRIC

TACHOMETER GP-ELECTRIC

4W4973 TACHOMETER GP--ELECTRIC
Lighted. 183 Tooth Pick-Up

c328427 UEG0646S

4W4973 TACHOMETER GP-ELECTRIC Parts scheme

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Parts for your D398A MARINE ENGINE:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	3T-2164	[1]	BOARD
2.	9B-7242	[2]	SCREW-MACHINE
	F	[1]	DIAGRAM-WIRING
	F		NOT SHOWN

#UEG0646S0668

7C-4357: TACHOMETER GP-ELECTRIC

TACHOMETER GP-ELECTRIC

7C4357 TACHOMETER GP--ELECTRIC
Field Replacement For 3N6871-Page 104A

c413275 UEG0646S

7C4357 TACHOMETER GP-ELECTRIC Parts scheme

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Parts for your D398A MARINE ENGINE:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	8T-9872	[1]	TACHOMETER
2.	7T-6945	[1]	GENERATOR-SIGNAL
3.	7T-8275	[1]	SHAFT-MALE DRIVE
4.	8T-9825	[1]	WIRE AS
	5P-5623 B		WIRE (16 GA)
5.	7N-9738	[1]	HOUSING-RECEPTACLE
	7N-7779	[1]	SOCKET
	7N-7780	[1]	PIN-CONNECTOR
6.	6T-6506	[2]	TERMINAL
	6T-6505	[2]	HOUSING-RECEPTACLE
	B		USE AS REQUIRED