{"nhtsa_id":10189475,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2021-03-29","date":"2016-05-23","document_id":"PA-2016-050","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING","mfr_system":null,"summary":"Laydon Composites developed two air deflectors for the COE and Conventional cabs. Design was in conjunction with Hino USA and Hino Canada. This designs reduce aerodynamic drag and improves fuel economy. Hino Japan had the final say on 3 different shapes that were designed using Computational Fluid Dynamics (CFD) electing to chose the most fuel efficient.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2016/MC-10189475-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2016/MC-10189475-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10189475","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"HINO","model":"HINO","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":[]}