2019 Harley-Davidson FLHXS Street Glide Special — 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 FLHXS Street Glide Special.
Oil Sumping
HighOil accumulates in the crankcase instead of returning to the tank, causing power loss, overheating, and potential engine failure.
Fluid Transfer
MediumTransmission oil migrates into the primary case through the main shaft.
Hydraulic Lifter Failure
MediumStock lifters can fail prematurely, leading to loud top-end ticking and potential cam damage.
Used Buying Inspection Checklist
What to look for when buying a used 2019 Harley-Davidson FLHXS Street Glide Special.
Transmission Oil Level
Check if the level is low; if so, check the primary level. This indicates the 'oil transfer' issue.
Air Cleaner Housing
Look for excessive oil pooling in the intake, which is a symptom of oil sumping or 'breather carryover'.
Service Records for TSBs
Confirm if TSB M1450 (oil pump) or the primary vent kit has been installed.
Steering Neck Bearings
Check for 'notching' or play; these heavy bikes put significant stress on the neck bearings.
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