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EnginePart report

2017 Harley-Davidson Flhx Engine Problems

Complaints
1about this part
Share
20%of 5 total for the year
Median mileage
6,854miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 1 complaints about the engine of the 2017 Harley-Davidson Flhx, 20% of the 5 complaints for this model year. Where a mileage was given, the median is 6,854 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.

“The contact owns a 2017 Harley-Davidson FLHX. Upon checking the oil, it was discovered that there was no oil on the dip stick. Upon further inspection, it was found that the oil had transferred to the primary. The contact was concerned that the failure could potentially result in the engine stalling. The motorcycle was taken to brothers Harley-Davidson inc (located at 557 w main st, branford, ct) where the failure was confirmed and a TSB was performed regarding the failure. The manufacturer was notified and stated that the motorcycle operated as intended. The failure mileage was 6,854. …”

NHTSA complaint #11128397, filed 2018-09, 6,854 miles

Related service bulletins

Engine: other model years

YearComplaintsShare of year
2018113%
2017120%
2013117%
201216%
201116%
2010417%
200927%
2008413%
200715%

Other parts of the 2017 Harley-Davidson Flhx

Electrical system
2 complaintsTransmission and drivetrain
2 complaints

← All problems reported for the 2017 Harley-Davidson Flhx

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 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