{"nhtsa_id":10154149,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2019-03-04","date":"2018-12-01","document_id":"P56049","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING; EQUIPMENT ADAPTIVE/MOBILITY","mfr_system":null,"summary":"Operation Name: Hendrickson Trailer Commercial Vehicle Systems Document Name: Product Update - Air Piloted Valve (3-way) Summary: This document announces a change in suppliers for the VS-23588 air piloted valve (3-way), and the introduction of a new replacement part number VS-38689, for use with various Hendrickson air control kits.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10154149-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10154149-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10154149","components":[{"id":"engine","name":"Engine","parent":null},{"id":"equipment","name":"Equipment and accessories","parent":null}],"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":[]}