Hendrickson shock absorber part number 066153-003, also referenced as 66153-003 and 661533. This is a genuine Hendrickson suspension component sold by Pro Gear and Transmission. Hendrickson shock absorbers are engineered for heavy-duty truck suspension systems, controlling axle movement and damping road inputs to protect the chassis and cargo. If you need help confirming this is the correct shock for your application, give us a call before ordering.FeaturesGenuine Hendrickson suspension componentPart number 066153-003, also referenced as 66153-003 and 661533Designed for heavy-duty truck suspension applicationsSold by Pro Gear and TransmissionCall to confirm fitment for your specific truck or suspension model