Service bulletin M1689
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.
| Type | Service bulletin |
|---|---|
| NHTSA id | 11019406 |
| Published by NHTSA | 2025-06-07 |
| Manufacturer's number | M1689 |
| Manufacturer's date | 2025-05-29 |
| NHTSA component | UNKNOWN OR OTHER; POWER TRAIN |
NHTSA's 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SERVICE BULLETIN M1689: 2009-2010 TRIKE TRANSMISSION HOUSING IS OBSOLETE.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 This bulletin informs dealers that Transmission Case (Part No. 83978-09) for 2009-2010 Trikes, is obsolete.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.
The document
The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.
Components
Transmission and driveline
| HARLEY-DAVIDSON FLHTCUTG | 2009 to 2010 |
|---|---|
| HARLEY-DAVIDSON FLHXXX | 2010 |
Listing a model year does not mean every vehicle of it is concerned: the document says which.