Kearney & Trecker FT ASSY 1-21257 Output Driver Board 0801 Jumper A_121257 It is a Kearney & Trecker, KT Output Driver Board. Model Number: FT ASSY 1-21257 FTASSY121257. This machine part was pulled from a working machine, and is being sold in good working condition unless otherwise stated! byJuly 5, 2026