Skip to content
EnginePart report

2012 Harley-Davidson Flhtk Engine Problems

Complaints
2about this part
Share
11%of 19 total for the year
Median mileage
2,982miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 2 complaints about the engine of the 2012 Harley-Davidson Flhtk, 11% of the 19 complaints for this model year. Where a mileage was given, the median is 2,982 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.

“This is concerning my 2012 harley davidson ultra classic limited. Without warning, most predominantly at highway speeds, the bike will go into limp mode. By that I mean, the throttle-by-wire will disconnect the engine's RPM's and decrease to 1200 RPM resulting in making the handlebar throttle control useless. (creating instant panic for fear of vehicles behind me running over me, especially on the interstate highway in heavy traffic) therefore I have no choice but to pull to the side of the road, shut the engine off, and go through to procedure of restarting the engine. …”

NHTSA complaint #10583274, filed 2014-04, 3,713 miles

“While riding my harley motor cycle on vacation across nebraska on highway 76 I noticed extreme heat on the inside of my right leg and loss of power. The inside of my right was burned and got infected, total bill for doctor and time off from work was approximately $1500.00-$2000.00. The work done on the motor cycle bill was $1487.00. This is suppose to take care of the problem of over heating. New head pipes $524.95, kit,sestage 1 aic %)mm$139.95, kit-efi super tuner,screa $459.95, job code;0 tec: jdk $81.00, dyno tune$275.40. I have paid all expenses. …”

NHTSA complaint #10482478, filed 2012-10, 2,252 miles

Related service bulletins

Engine: other model years

YearComplaintsShare of year
2017113%
2016110%
2015440%
20141232%
201317%
2012211%
201115%
201013%

Other parts of the 2012 Harley-Davidson Flhtk

Brakes
11 complaints
Electrical system
4 complaints
Suspension
3 complaints
Equipment
2 complaints
Electronic stability control
1 complaints
Fuel system
1 complaints
Steering
1 complaints
Tires
1 complaints
Transmission and drivetrain
1 complaints

← All problems reported for the 2012 Harley-Davidson Flhtk

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 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