Demco 8" Channel 12,500 lbs. Primed Finish Disc Brake Actuator - 8105422

12,500 lb. G.V.W.R.  Disc Brake Actuator. Zinc Finish. 50º Mount Outer Case. Center Position.8" 4 Bolt Channel.  1⁄2” x 4 1⁄2” grade 5 bolts are required to mount actuators. 1,250 lb. maximum tongue load or 10% of G.V.W.R. of coupler, vehicle, ball or trailer. DA10 actuators utilize Acetal Copolymer linings. Rollers are eliminated. All DA10 models with coupler adjusting channels have 3” inside dimensions. Emergency lever guide and ring on DA10.