Must be an oversized one.  The original is 13mm and any socket fits there.
Zoltan
----- Original Message -----
From: "Allan Streib" <streib@CS.INDIANA.EDU>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Sunday, January 27, 2008 4:22 PM
Subject: removing oil drain plug

> Arriving home tonight with the motor warm, I wanted to change the
> oil.  The drain plug head takes a 19mm wrench but all my sockets are
> too big to fit into the recess in the case.  Do you normally need a
> special thin-wall socket to get the drain plug out?  Or has someone
> put an oversized plug in?
>
> Allan
>
>
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