The Midland Haldex KN34101 is a two-line manifold-style tractor protection valve designed to consolidate multiple brake functions into a single unit. It can replace up to four valves on competitive systems, reducing plumbing complexity on the tractor. Port configuration includes a 3/8″ PTC tractor emergency inlet, a foot control with one 1/2″ PTC and one 3/8″ PTC port, a 3/8″ PTC hand control port, a 1/4″ NPT stop light switch port, and 1/2″ NPT outlets for both trailer service and trailer emergency lines. All Push-To-Connect (PTC) fittings accept nylon tubing for straightforward installation. If you need to confirm proper fit for your tractor brake system, give us a call.Interchanges:HDX-KN34101MDKN34101N30162RDA factory handling fee of $25.00 per unit is added at checkout.FeaturesTwo-line manifold style tractor protection valveReplaces up to four valves on competitive systemsTractor Emergency Inlet: 3/8″ PTCFoot Control ports: (1) 1/2″ PTC and (1) 3/8″ PTCTrailer Service and Emergency Outlets: 1/2″ NPT eachStop Light Switch port: 1/4″ NPT; Push-To-Connect fittings for nylon tubesTech SpecsTractor Emergency Inlet: 3/8″ PTCFoot Control: (1) 1/2″ PTC, (1) 3/8″ PTCHand Control: 3/8″ PTCStop Light Switch: 1/4″ NPTTrailer Service Outlet: 1/2″ NPTTrailer Emergency Outlet: 1/2″ NPTExhaust Tube: NoOEM Part Number: N30162RDNotes: PTC (Push-To-Connect) fittings for nylon tubesAdditional InformationRepair Kit: use part number RN31BC.Includes tractor protection, two double check valves, stoplight switch port, and built-in quick release, all in one valve.