Trailer repair, changing a brake damper on a trailer

Showing how I replaced a trailer damper on a AL-KO 251S coupler, partnumber of the damper was 355338. The old damper did not work as it should and made it unsafe to use it as the trailer started to push the car before the brakes started to brake when transporting something heavy.

[@SylviaColeman-dg5in]

Where did you get your replacement part? Thanks for your time and video.

[@FredaG-gg8jt]

Annoying background music