12mm 12pt torx. I believe NAPA carries these, according to other posts I have read. I own one from Hazet tools, a high quality piece that cost $30+. Search the web! they're easy to find.

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Streetside: 1987 Mercedes 300E Petrol Blue/Green
2014 Ford Mustang Grabber Blue
1999 Ford Ranger Green

Dockside: 1968 Eltro 17
1985 Silverton 34C