{"nhtsa_id":10143387,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-08-06","date":"2018-06-04","document_id":"TSB180058-060420","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:BELTS AND ASSOCIATED PULLEYS","mfr_system":null,"summary":"This Technical Service Bulletin describes the verification and resolution of belt noise on certain engines installed in Tiffin Recreational Vehicles. Insufficient belt wrap around the air compressor pulley may result in belt noise/squeal or belt damage on the secondary belt plane which wraps around the air compressor and the high mount Freon Compressor.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10143387-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10143387-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10143387","components":[{"id":"engine","name":"Engine","parent":null},{"id":"drive-belt","name":"Drive belts","parent":"engine"}],"codes":[],"topics":[],"vehicles":[{"make":"CUMMINS","model":"ISV5.0","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":[]}