Haldex KN30400X Reman Air Brake Relay Valve N4301CB

HALDEX KN30400X. Condition: Remanufactured.
Interchange: N4301CB; KN30400 KN30400X KN30400RX
Remanufactured Emergency Relay Valve , Suitable for pre-121 trailers, converter dollies, or exempt trailers.