2019 Harley-Davidson FLHR Road King — Common Issues & Known Problems
Known Issues & Owner Reports
These are the most commonly reported issues and concerns from owners, mechanics, and community forums for the 2019 Harley-Davidson FLHR Road King.
Oil Sumping
HighOil accumulates in the crankcase instead of returning to the tank, causing power loss and potential engine damage.
Transmission Fluid Migration
MediumFluid transfers from the transmission into the primary case due to a vacuum effect.
Inaccurate Fuel Gauge
LowThe fuel level sensor often reports 'low fuel' prematurely or fluctuates wildly.
Harmonic Vibration
LowRiders report a distinct vibration through the floorboards and bars between 1800 and 2200 RPM.
Used Buying Inspection Checklist
What to look for when buying a used 2019 Harley-Davidson FLHR Road King.
Transmission Fluid Level
Check if the transmission oil is low and the primary is high; this indicates a fluid migration issue that requires a vent kit fix.
Oil Sumping Signs
During a test ride, check for a sudden loss of power or excessive heat, which are symptoms of oil pooling in the crankcase.
Windshield Clips
The spring-loaded clips that hold the windshield in place can vibrate loose; ensure they lock firmly and aren't bent.
Service History (M1450/M1492)
Confirm if the TSBs for oil sumping and fluid migration have been addressed by a dealer.
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