2019 Harley-Davidson FLHTKL Ultra Limited Low — 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 FLHTKL Ultra Limited Low.
Oil Sumping
HighOil accumulates in the crankcase instead of being scavenged back to the tank, causing power loss and potential engine damage.
Oil Transfer (Migration)
MediumTransmission fluid migrates through the clutch pushrod into the primary case, leaving the transmission dangerously low.
Hard Starting / Cranking Hesitation
LowThe engine may hesitate or 'kick back' during startup, often mistaken for a weak battery.
Used Buying Inspection Checklist
What to look for when buying a used 2019 Harley-Davidson FLHTKL Ultra Limited Low.
Transmission Oil Level
Check if the transmission oil is low while the primary is overfull; this indicates the 'oil transfer' issue.
Air Cleaner Housing
Look for excessive oil residue inside the air cleaner, which can be a sign of sumping or high crankcase pressure.
Infotainment Boot Time
Ensure the Boom! Box GTS system boots within ~10 seconds; slow performance can indicate software or hardware issues.
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