2007 Harley-Davidson Flstn Engine cooling Problems
- Complaints
- 4about this part
- Share
- 67%of 6 total for the year
- Median mileage
- 147miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 4 complaints about the engine cooling of the 2007 Harley-Davidson Flstn, 67% of the 6 complaints for this model year. Where a mileage was given, the median is 147 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.
“2007 harley davidson Flstn, 96b motor, factory new, 277 miles on odometer, no aftermarket parts: excessive vibration of motor, excessive motor heat, harsh / loud, metal to metal transmission gear engagement, and secondary transmission gear metal to metal clunk while rolling out clutch in 1st & 2nd gears. Possible pinion gear damage and pinion / main shaft run-out exceeding oem specs. Harley is aware of problem but has no current fix, recall or service bulletin.”
NHTSA complaint #10203982, filed 2007-09, 250 miles“Hot running engine under normal operating conditions. Hard, metal to metal hit on engagement of starter and transmission on start-ups. Hard, metal to metal hit on initial shifting to first gear from neutral and on start-up.”
NHTSA complaint #10198694, filed 2007-08, 44 miles“- while riding 2007 harley davidson motorcycle, bike is shutting down while in gear. - motorcycle loses the ability to shift without the bike running. This happening while in various riding situations. - have taken to dealership where bought. They were not able to diagnose the problem and or fix it. -”
NHTSA complaint #10200940, filed 2007-08Related service bulletins
- 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…
- 10179446Aug 19, 2020GENUINE MOTOR PARTS AND MOTOR ACCESSORIES BULLETIN PAB1100: TWIN CAM LONGBLOCK & WARRANTY ENGINE - PROGRAM UPDATES. PURPOSE: To inform dealers of certain twin cam longblock and…
- 10032652Dec 8, 2008Harley davidson: engine idle temperature management system. The calibration offers limited rear cylinder cooling with the motorcycle stopped while the engine is left at idle once…
Engine cooling: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2007 | 4 | 67% |
Other parts of the 2007 Harley-Davidson Flstn
2 complaintsElectrical system
1 complaintsEquipment
1 complaintsFuel system
1 complaints
← All problems reported for the 2007 Harley-Davidson Flstn
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 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