The moulded plastic handbrake handle in the W126, after many years, is susceptible to cracking. Many second-hand parts available online will be just as problematic, as they typically are salvaged from scrap and the brittleness is due to the ageing of the plastic.

This is a 3D-printed alternative, so you can have a brand new one! I've taken the liberty of adjusting the shape slightly to avoid the original thin section that promoted the cracking, and making the whole section a little chunkier to allow for the (sometimes mediocre) material properties of 3D printed parts.

There are two variations: the "counterbore" parts use the existing bolt from the original handle. The "countersink" parts are designed for an M5x25 countersunk machine screw (I had some lying around), and allow a bit more plastic 'meat' for strength. Make sure you pick and print a matching pair (note the nut recess is also a different depth for the different bolt lengths).

Enjoy!

As always no guarantees or warranties express or implied - take care making any modifications to a vehicle (even what seems to be minor ones), no responsibility will be taken by the author for any misadventure or loss incurred by using this design.