Unknown Parts (Pics) and Spark Plug Question

[boboskips]

I could use some help identifying the first two parts Picture 1 and 2. And I pulled these spark plugs out of my engine and noticed that one of them was a bit shorter. I guess its a moot point (I plan on replacing them), but I'm curious which is the correct plug or if both work.

Thanks!~

1

2

3 Spark Plugs

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Bobo
'73 Transporter
Stock 1700cc engine

"Miles from nowhere
I Guess I'll take my time"

[VWsArent4Hippies]

#2 is a thermostat.
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[Pearl the party bus]

#2 is a thermostat (as already stated), #1 might be the pulley for the cable that goes to the thermostat, but it is hard to tell from the photo. The thermostat look like it is shot, it should be contracted when cold. I think the longer plug is correct, bosch W8CC or W7CC (or equivalent, do a search on spark plugs, lots of info).
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James,
Pearl the party bus (really just Pearl) is a white 1973 Westfalia

[Karl]

#1 is the pulley for the thermostat cable.

The cable is missing off of your worthless thermostat [#2]

The short plug is for a type 1 engine, not correct for your engine.

[boboskips]

Thanks for the info, I'll see if I can find a lead on a replacement thermostat. Thanks everyone!
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Bobo
'73 Transporter
Stock 1700cc engine

"Miles from nowhere
I Guess I'll take my time"