The Bendix Relay Valve R-8, part number 289395N (also listed as BW289395N), is a genuine Bendix air brake relay valve designed for heavy-duty truck brake systems. The R-8 relay valve is categorized as an air brake emergency relay valve, managing air pressure delivery to brake chambers for accurate, responsive braking. Cross-reference numbers 287370N and 289395R may apply to your application, making this a direct service replacement in those situations. Pro Gear and Transmission carries genuine Bendix components. Call us to confirm this is the correct valve for your specific truck or trailer application before ordering.A factory handling fee of $20.00 per unit is added at checkout.FeaturesGenuine Bendix R-8 relay valve for heavy-duty air brake systemsPart number 289395N, also referenced as BW289395NClassified as an air brake emergency relay valveCross-references: 287370N and 289395RSold individually (each)Tech SpecsPart Number: 289395NValve Model: R-8Valve Type: Air Brake Relay Valve / Emergency Relay ValveCross References: 287370N, 289395RUnit of Measure: Each