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Investors Relations & Haldex information

Emergency Relay Valve

Part no. KN30400
item status Active
Product line Haldex
Emergency Relay Valve , Suitable for pre-121 trailers, converter dollies, or exempt trailers., Approximate Weight 3 lbs.


  1. Repair Kit use part number RN10HL.
Availability - If no Inventory shown, call regional CS
Customer Service US 1-800-643-2374
Customer Service CAN 1-800-267-9247
blobid0.png WARNING
Cancer and
Reproductive Harm

Technical specs

Service Inlet 1/4"
Emergency Inlet 1/4"
Auxiliary Reservoir Plugged
Reservoir 3/4" with Nipple, Female
Crack Pressure 3.0 PSI
Remarks Charging
OEM Part Number N4301CB
Approximate Weight 3 lbs.


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