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what are these

1501 Views 11 Replies 6 Participants Last post by  kavadarci
i see them on many engines but what are these plugs for?


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Freeze plug. I just changed one out on my M129. pn=180 015 08 05
no need to change them, honestly. I would take them out, clean them, and replace the gaskets underneath them.
there are specific gaskets, but I'm sure you can make them yourself. the OE one is not expensive, either. about $3.
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