RT4 Multi-Function Trailer Valves
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RT4 Multi-Function Trailer Valves
RT4 Multi-Function Trailer Valves
- Meets all FMVSS-121 trailer requirements for spring brake control and other regulations.
- Used on trailers to control both parking and emergency brake functions.
- Applies emergency (parking) brakes upon loss of trailer supply (emergency) line pressure.
- Controls reservoir charging.
- Interchangeable with competitive units.
- On KN26000X, KN26020 and KN26020X the trailer control port is over reservoir port A.
On KN26010 and KN26010X the trailer control port is over reservoir port B. - Repair Kit use part number RN10JM.
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