This kit fits Mack trailer air brake control valves and ships as a pack of five, each containing a trailer control knob and a spiral pin for mounting. It is built as a replacement for the dash-mounted knob that lets the driver apply or release the trailer brakes independently of the tractor brakes. Each kit arrives as a complete assembly ready for installation on Mack trucks.Interchanges:Mack 25MY32P2Mack 745-244282This unit is sold in packs of 5.FeaturesPack of 5 complete trailer control knob kitsEach kit includes trailer control knob (LVK-3601-001)Each kit includes spiral pin (LPN-5119) for secure mountingPart, category: Air Brake PartsTech SpecsKit contents: Trailer control knob (LVK-3601-001), Spiral pin (LPN-5119)Sell pack: 5 kits