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Old 03-24-2015, 08:59 PM
300 Super D 300 Super D is offline
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Join Date: Jan 2015
Location: So Cal
Posts: 168
617A filter bolt.... uh, which is this?

I pulled the filter bolt to check to see if I need to order new O-rings and found this. I have an "01" filter housing on an 84 300SD.

This bolt has an alum. (I assume) washer AND a huge upper o-ring but the bolt is much longer and has no groove for the large o-ring like the pics of the newer style bolt does. Anyone else have this bolt?? Could this have caused some problems? I dont see how it could unless the o-ring blocked the hole but it is a very tight fit and couldnt slide downward easy. Maybe this was an ok fix, or maybe someone was insane thinking this was ok?

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Last edited by 300 Super D; 03-24-2015 at 09:21 PM.
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