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Original Reproduction Instrument Panel Fuel Gauge (12 volt)
Fits 41-66 MB, GPW, CJ-2A, 3A, 3B, M38, M38A1

Part # 640768

New Original Reproduction Instrument Panel Fuel Gauge

Works for 12 volt systems and mounts just like original with two posts.

Comes complete with black face and white needle as
well as all mounting hardware.

For installation:
The IGN post (left side) is the hot wire coming from the ignition switch.
The GA post is the ground which is where the sending unit wire will attach.

Fits:
41-45 MB
41-45 GPW
46-49 CJ-2A
49-53 CJ-3A
53-64 CJ-3B
50-52 M38 (12 volt)
52-66 M38A1 (12 volt)

Part # Price
640768

$42.99

MSRP:

$42.99

MSRP:

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Is this gauge #640768 a black or green bezel? It’s hard to tell in the picture.

Willys Jeep Parts Tech:
These are black.

Hello, Does this fuel gauge work properly with the part # 640771? Also regarding ohm?

Willys Jeep Parts Tech:
Yes, those two are meant to work together.

Hello, Does this fuel gauge work properly with the part # 640694 ?

Willys Jeep Parts Tech:
Yes, that is correct.

In my 1993, M38A1 12v conversion I have installed the 640694 sending unit and the this 640768 12v gauge. When the ignition is on it registers correctly, however, when I begin to start the engine the gauge floats back to empty. I notice the movement as soon as the key starts the turn to start even before the starter is engaged. Any idea?

Willys Jeep Parts Tech:
I would check your ground wires on this and connections in general. Also maybe take a ohms reader to your sending unit.
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