The Hendrickson Down Stop, part number S-40231-1 or NS402311, is a genuine Hendrickson suspension component designed for heavy-duty truck suspension systems. The down stop functions as a travel limiter in air suspension assemblies, controlling downward axle movement to protect air springs and related components. Sold individually, this part is catalogued under Hendrickson suspension spring and air spring kit components. Pro Gear and Transmission carries genuine Hendrickson suspension parts. Not sure this is the right part for your application? Give us a call before ordering.
Features
Genuine Hendrickson suspension component
Part number S-40231-1, also referenced as NS402311
Functions as a down stop to limit downward axle travel in air suspension assemblies
Helps protect air springs and related suspension components from overextension
Sold as an individual unit
Sold by Pro Gear and Transmission
