This is the in-tank filter for 356A thru 356C with the Porsche style petcock.Warning: If this filter hasn't been changed in a long time, it may be clogged with varnish from old gas. Change it out now so you won't be stuck on the side of the road. When removing the petcock, remember the nut on the petcock is a left-hand thread; it's best to remove the entire petcock from the tank (tank bung is right-hand thread).

Note: This filter is included in repair kit, 644 201 951 00.