{"nhtsa_id":11019406,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2025-06-07","date":"2025-05-29","document_id":"M1689","mfr_campaign":null,"replaces":null,"component":"UNKNOWN OR OTHER; POWER TRAIN","mfr_system":null,"summary":"SERVICE BULLETIN M1689: 2009-2010 TRIKE TRANSMISSION HOUSING IS OBSOLETE. PURPOSE: Initial release. This bulletin informs dealers that Transmission Case (Part No. 83978-09) for 2009-2010 Trikes, is obsolete. Required Dealer Action: 1. If Transmission Case (Part No. 83978-09) is no longer available to order for a 2009-2010 Trike, order replacement Transmission Case (Part No. 83978-11). 2. Remove the 30 tooth drive sprocket and install either a new 32 tooth sprocket (Part No. 35000152A) or reuse the original 32 tooth sprocket, if it's in good condition.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11019406-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11019406-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11019406","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"HARLEY-DAVIDSON","model":"FLHTCUTG","year_from":2009,"year_to":2010,"match":null,"vehicle_ids":[]},{"make":"HARLEY-DAVIDSON","model":"FLHXXX","year_from":2010,"year_to":2010,"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":[]}