The Hendrickson SA-4200-11 is a genuine Hendrickson airline fitting designed for use in Hendrickson suspension systems. Also referenced as SA420011, this fitting is a direct Hendrickson part sold by Pro Gear and Transmission. Airline fittings in heavy-duty suspension applications carry air to ride-height control valves and related suspension components, making correct part identification critical before ordering. If you need help verifying this is the right fitting for your suspension configuration, give us a call before placing your order.FeaturesGenuine Hendrickson part number SA-4200-11 or SA420011Airline fitting for Hendrickson suspension applicationsDirect Hendrickson suspension replacement componentSold by Pro Gear and Transmission