The Midland Haldex RN10JM is a repair kit designed for the RT4 Multifunction Trailer Valve, covering valve models KN26000X, KN26010X, and KN26020X. This kit contains the service components needed to restore proper function to the RT4 valve assembly used in trailer air brake systems. The part is also cataloged under the code MDRN10JM. Pro Gear and Transmission sells this as a genuine Haldex part. Call us to confirm fit for your specific valve configuration before ordering.A factory handling fee of $25.00 per unit is added at checkout.FeaturesRT4 Multifunction Trailer Valve repair kitFits valve models KN26000X, KN26010X, and KN26020XAlso cataloged as MDRN10JMSupersedes part number RN10HRGenuine Midland Haldex part sold by Pro Gear and TransmissionTech SpecsApplication: RT4 Multifunction Trailer Valve models KN26000X, KN26010X, KN26020XVendor Part Number: RN10JMCross-Reference: MDRN10JMSupersedes: RN10HRAdditional InformationThis kit supersedes Haldex part number RN10HR. Contact Pro Gear and Transmission to verify compatibility with your specific RT4 valve assembly.