2009 Harley-Davidson Flhx Transmission and drivetrain Problems
- Complaints
- 3about this part
- Share
- 10%of 29 total for the year
- Median mileage
- 24,079miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 3 complaints about the transmission and drivetrain of the 2009 Harley-Davidson Flhx, 10% of the 29 complaints for this model year. Where a mileage was given, the median is 24,079 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“Transmission is poorly manufactured. Motorcycle has 40k miles and when ring on shifter gets hot, it becomes brittle causing it to break off 1/4 causing bike to loose power and gear while traveling at highway speeds. When taken to repair shop, piece had damaged other 5 gears can provide pictures if needed”
NHTSA complaint #11003736, filed 2017-07, 40,000 miles“Driving at 65 MPH on major interstate. Heard loud noise and thought drive belt broke or something of that nature as motorcycle was just coasting at this point. Engine and throttle fine but no forward motion. Also thought maybe transmission until I checked rear wheel and sprocket. Appears rear bearing failure with very low mileage. Checked other postings and forums on internet (harley sites) and found many complaints about low mileage bearing failures, both front and rear. …”
NHTSA complaint #10586460, filed 2014-05, 6,400 milesRelated service bulletins
- 11014014Jan 24, 2025SERVICE BULLETIN M1650: MILWAUKEE EIGHT AND TWIN CAM CAMSHAFT DRIVE GEAR RETENTION KIT CHANGES. PURPOSE: This bulletin informs dealers that changes have been made to the Camshaft…
- 11005514Jul 10, 2024GENUINE MOTOR PARTS AND MOTOR ACCESSORIES BULLETIN PAB1158: OIL FILTER PACKAGING AND CASE QUANTITY UPDATE. PURPOSE: To inform dealerships that Harley-Davidson has made updates to…
- 10254115Apr 4, 2024SERVICE BULLETIN M1612 (REV A): MILWAUKEE-EIGHT AND TWIN CAM TRANSMISSION GEAR PACKS. Purpose: Revision. Update: Notes for Table 3 and 4. * Updated: Part Numbers. This bulletin…
- 10248398Dec 4, 2023SERVICE BULLETIN M1612: MILWAUKEE-EIGHT AND TWIN CAM TRANSMISSION GEAR PACKS. Purpose: This bulletin informs dealers that all: ⢠Twin Cam gear packs on CVO, Dyna, Police…
- 10248397Dec 4, 2023SERVICE BULLETIN M1612: MILWAUKEE-EIGHT AND TWIN CAM TRANSMISSION GEAR PACKS. Purpose: This bulletin informs dealers that all: ⢠Twin Cam gear packs on CVO, Dyna, Police…
- 10139399Apr 27, 2018TECH ARTICLE TA0023: TA0023: Crankshaft Rod Bearing. Purpose: Technicians have been falsely identifying connecting rod bearings as failed due to a perception of resistance as the…
Transmission and drivetrain: other model years
Other parts of the 2009 Harley-Davidson Flhx
10 complaintsBrakes
8 complaintsFuel system
6 complaintsVehicle speed control
6 complaintsEngine
2 complaintsSteering
2 complaintsWheels
2 complaintsElectronic stability control
1 complaintsEngine cooling
1 complaintsTires
1 complaints
← All problems reported for the 2009 Harley-Davidson Flhx
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology