The Hendrickson Shock Spa, part number A-23645 or A23645, is a genuine Hendrickson suspension component classified under leaf spring hanger and related suspension hardware. It is sold individually as a single-unit service part. Hendrickson suspension systems are common across heavy-duty truck and trailer applications, and this spa fits within that platform. Pro Gear and Transmission carries genuine Hendrickson parts for professional fleet and shop buyers. Not certain this is the right part for your application? Give us a call before ordering.FeaturesGenuine Hendrickson part number A-23645 or A23645Classified as a leaf spring hanger and related suspension componentSold as a single-unit (each) service partCompatible with Hendrickson heavy-duty suspension systemsSourced and sold by Pro Gear and Transmission