This a new old stock UNTESTED factory 9405801 printed circuit board for the runout monitor on an 800 on-the-vehicle brake lathe sold AS IS. It's been sitting on a shelf in my garage since 2003 and I have no way of knowing if it works. Due to the nature of old electronic/computer components, some solder points might need maintenance before use and other issues may be present. PURCHASE AT YOUR OWN RISK! I found one listed on here for $475. Please check out the other Ammco and Coats service parts and accessories I have listed.
