{"nhtsa_id":10131572,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-04-02","date":"2018-02-01","document_id":"P36025","mfr_campaign":null,"replaces":null,"component":"TRAILER HITCHES; PARKING BRAKE:DRIVELINE:HYDRAULIC:ACTUATOR","mfr_system":null,"summary":"Operation Name: Hendrickson Trailer Commercial Vehical Systems Document Name: Product Update - SURELOK Update Summary: This document announces that, beginning in March 2018, Hendrickson will start providing, for both aftermarket and new production purposes, Hendrickson SURELOK air spring actuators that are dual-sourced from two separate suppliers. The two respective SURELOK actuators differ visually, but have the same fit and function.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10131572-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10131572-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10131572","components":[{"id":"brakes","name":"Brakes","parent":null},{"id":"trailer-hitch","name":"Trailer hitch","parent":null},{"id":"parking-brake","name":"Parking brake","parent":"brakes"}],"codes":[],"topics":[],"vehicles":[{"make":"HENDRICKSON","model":"HENDRICKSON","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]}],"as_of":"2026-10-19","note":"A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.","attribution":[]}