This brand-new chassis bumper relay covers OEM numbers 81521166067, 81521166068 and 81521166069, suitable for MAN TGA, TGX and F2000 trucks. It controls and stabilizes the electrical circuit of chassis bumper parts effectively. Adopting high-quality electronic materials, it features strong anti-interference, overload resistance and long service life. Made strictly following OEM specifications, it installs conveniently and perfectly replaces damaged or aging original relays.