2019 Harley-Davidson FLHTK Ultra Limited — 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 FLHTK Ultra Limited.
Fluid Transfer (Migration)
MediumTransmission fluid migrates through the clutch pushrod into the primary case due to pressure differentials.
Electric Water Pump Failure
MediumThe electric pump for the Twin-Cooled heads can fail, causing a 'Check Engine' light and potential overheating.
Oil Sumping
HighOil collects in the crankcase instead of returning to the tank, causing friction, power loss, and engine damage.
Used Buying Inspection Checklist
What to look for when buying a used 2019 Harley-Davidson FLHTK Ultra Limited.
Transmission Dipstick Level
Check for 'fluid transfer.' If the transmission oil is low and the primary is overfull, the bike needs the vent kit update.
Water Pump Operation
Listen for the electric pump running after a hot shutdown. These pumps are known failure points on 2017-2019 models.
Service Records for Oil Pump
Early M8 engines had 'sumping' issues. Check if the oil pump was ever updated to the 2020+ version (P/N 62400247).
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