RoadVitals

2018 Harley-Davidson Flhtk Problems

Owner-reported complaints filed with NHTSA, grouped by component

Data refreshed

Owner complaintsComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
4
Latest Apr 20, 2021
Components namedHow many of our component categories appear on at least one report for this model year. One report can name several.
3
Crash or fire reportedComplaints whose submitter recorded that a crash or a fire occurred. These are the reporter's own answers on the NHTSA form, not verified findings.
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What this page shows

Everything below is an owner-reported complaint submitted to NHTSA about the 2018 Harley-Davidson Flhtk, grouped by the component NHTSA recorded on the report. These are not confirmed defects, and they are not recalls. NHTSA does not verify most reports before publishing them, and a category with more reports in it is not evidence that a part is defective.

Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.

Reports by component

Ranked by how many owner reports name each component category

  • Engine250.0%
  • Other / unspecified125.0%
  • Powertrain (other)125.0%

Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.

Each component in detail

What the reports in each category say, in the owners' own words

Engine

Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components.

2
reports

From owner reports, verbatim

WHEN SLOWING FOR A STOP THE ENGINE WILL STALL WHEN THE CLUTCH LEVER IS PULLED IN. THE BIKE MUST BE SWITCHED OFF THEN BACK ON AND RESTARTED. THIS IS AN INTERMITTENT PROBLEM THAT THE DEALER COULD NOT REPRODUCE. HOWEVER, A LITTLE RESEARCH ON INTERNET SHOWS A LOT OF OWNERS WITH THE NEW MILWAUKEE 8 ENGINE ARE HAVING THIS ISSUE.

NHTSA ID 11096827 · filed May 19, 2018

HEAD BOLT BROKE ON FRONT CYLINDER OF ENGINE CAUSING HEAD GASKET TO FAIL, WHICH LED TO OIL LEAK FROM HEAD GASKET. THIS LED TO ENGINE OIL BEING LEAKED ONTO SIDE OF MOTORCYCLE AS WELL AS ON PASSENGER BOOTS AND ONTO REAR TIRE. THIS OCCURRED WHILE VEHICL WAS TRAVELLING ON HIGHWAY WITH ENGINE AT OPERATING TEMPERATURE .WASINFORMED BY HARLEY MASTER TECH THAT THEY HAD SEEN THIS ON NUMEROUS OCCASIONS

NHTSA ID 11025236 · filed Sep 25, 2017

Too few reports in this category for a page of its own — they appear in the full complaint list.

Other / unspecified

Reports whose component NHTSA recorded as unknown, or that do not map to one of the categories above.

1
report

From owner reports, verbatim

TIRE DEVELOPED SLICING IN THE TREAD HAVE HAD MULTIPLE HARLEY DEALERS TELL ME THEY HAVE SEEN THIS PROBLEM

NHTSA ID 11354102 · filed Sep 10, 2020

Too few reports in this category for a page of its own — they appear in the full complaint list.

Powertrain (other)

Powertrain reports that are not specifically the engine or transmission — driveshafts, axles, transfer cases and differentials.

1
report

From owner reports, verbatim

LOSS OF OIL PRESSURE, POWER, AND ENGINE FAILURE AT HIGHWAY SPEED DUE TO OIL SUMP AND FAILURE OF OIL PUMP. VEHICLE WAS TRAVELING AT HIGHWAY SPEED ON RESTRICTED ACCESS ROAD.

NHTSA ID 11412987 · filed Apr 20, 2021

Too few reports in this category for a page of its own — they appear in the full complaint list.

Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.

Elsewhere on this vehicle

Data sources

Data on this page last refreshed .