Identified! - Plug behind intake manifold M1009 - water in fuel diode

[kallisti5]

While I was pulling the intake manifold, noticed a old duct-tape wrapped block taped to the back of the wiring harness.
Pulled it, Looks melted, two pins, folded over with burn marks.

Any idea what this is?

 

[cucvrus]

Not sure 100% what it is but NOT needed is what I do know. https://www.steelsoldiers.com/threads/cucv-switches-diodes-relays.50551/#lg=post-575716&slide=1
Water in fuel diode.

 

[kallisti5]

Water in fuel diode.

Nice! Thanks I have been scouring the TM's and couldn't find it anywhere.
That picture also helps with the orientation of it.

warthog posted here:

CUCV Switches, Diodes, Relays

I was looking over the wiring diagrams and wanted to identify all the in-dash relays, diodes and switches. So here you go. For a better picture - Right Click on thumbnail and choose "Open Link in New Window" If anyone has suggestions for additional photos, please let me know.

www.steelsoldiers.com

GM 12006337
Radio Shack # 2761144


Since Radio Shack is going the way of the dodo, here is the actual part number:
Ultimate 200A surge. Type 1N5404 and the Peak Inverse Voltage (PIV) is 400.

Given those specs, sounds about right given the heavy wire gauge.