Haldex KN34123 Tractor Protection Valve, Two-Line Manifold Style, PTC Fittings

The Haldex KN34123 is a two-line, manifold-style tractor protection valve for air brake systems on heavy-duty trucks and trailers. It combines several functions in one valve body, so it can serve as a tractor protection valve, a trailer air supply protection valve, or a pressure protection valve.

Key Features:

• Two-line manifold-style tractor protection valve
• Includes two double check valves
• Has a stoplight switch port
• Has a built-in quick release function
• Push-to-connect (PTC) fittings for nylon tubing

Combining these functions in one manifold reduces the number of separate valves in the air brake plumbing.