I have a light duty hitch for a 126. Actually, I have two, but I'm putting one on the SD. It bolts to the bumper and the trunk pan. I haven't installed either, but it looks easy enough. Drill four holes, bolt it on, and splice in a wiring connector.

The newer one I have (the one I'm keeping) says 200 pound tongue, 2000 load. The one I would sell does not have the ball or the part the ball bolts on to (looks about a 1.25" x 1.25" square tube). It also does not have the fasteners. As a note, the part that bolts to the trunk pan will need to have some thin backing plates made for inside the trunk.

Once this is installed, if you get rear ended, the bumper shocks will do nothing. I think the trunk pan would get bent up depending on how hard the hit would be.

Would you want it? Sixty bucks shipped.

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Thank You!
Fred
2009 ML350
2004 SL600
2004 SL500
1996 SL600
2002 SLK32
2005 CLK320 cabrio
2003 ML350
1997 C280 Sport