170.KN28601 FF2 Full Function Valve Air Brake Control for Trailers

Upgrade your air brake system with the 170.KN28601 FF2 Full Function Valve, a reliable all-in-one solution designed to improve braking performance and safety in heavy-duty trucks and trailers.

This full function valve combines multiple critical air brake components—relay valve, pressure protection, check valves, and spring brake control—into a single compact unit. By replacing worn or outdated valves with this FF2 unit, you can restore proper air flow, improve brake response time, and reduce system complexity.

✅ Why replace your old valve?

• Fix slow or inconsistent brake response
• Prevent air pressure loss and system failure
• Eliminate leaks from aging or damaged valves
• Ensure safer and smoother braking operation

Key Benefits

• All-in-one FF2 design reduces installation time
• Improves air brake response and efficiency
• Durable construction for heavy-duty use
• Direct replacement for compatible FF2 systems

Applications

• Semi-trucks
• Trailers
• Commercial heavy-duty air brake systems