2010 Harley-Davidson FLHTK Electra Glide Ultra Limited — Maintenance & Ownership Guide
Routine Maintenance
Key maintenance tasks to keep your 2010 Harley-Davidson FLHTK Electra Glide Ultra Limited running reliably.
Engine Oil
Requires ~4.0 quarts of 20W-50; synthetic is highly recommended due to high operating temperatures of the 103 engine.
Primary/Transmission Fluid
Separate sumps: Primary requires ~38 oz and Transmission requires ~32 oz. Maintaining clean primary fluid is critical for compensator longevity.
Brake Fluid Flush
ABS-equipped models require a DOT 4 flush every 2 years to prevent moisture buildup from seizing the ABS actuator valves.
Common Wear Items
Parts that wear over time on the 2010 Harley-Davidson FLHTK Electra Glide Ultra Limited and should be inspected regularly.
Compensator Sprocket
The early 103 compensators are a known weak point; they often develop a loud 'clunk' or 'thunder clap' on startup as the spring pack weakens.
Tires
The heavy weight of the FLHTK (900+ lbs) causes rapid wear on the rear tire, typically requiring replacement every 10k-15k miles.
Brake Pads
Brembo pads provide excellent stopping power but can be dusty; check thickness every 5,000 miles.
Popular Upgrades
The most popular aftermarket upgrades for the 2010 Harley-Davidson FLHTK Electra Glide Ultra Limited.
Stage 1 Air/Exhaust
The 2010 103 runs lean and hot due to emissions; a high-flow intake, exhaust, and tuner significantly reduce engine heat and improve throttle response.
Screamin' Eagle Compensator
A common fix for the stock compensator failure; provides better lubrication and a stronger spring pack.
LED Lighting
Replacing the stock halogen bulbs with Daymaker-style LEDs drastically improves nighttime visibility and safety.
Used Buying Inspection Checklist
What to look for when buying a used 2010 Harley-Davidson FLHTK Electra Glide Ultra Limited.
Compensator Noise
Listen for a loud metallic bang when starting the engine cold. If present, the compensator is likely failing.
Rear Brake Light Switch Recall
Check if the recall for the rear brake switch (exposed to exhaust heat) has been performed; it can cause brake light failure or fluid leaks.
ABS Operation
Ensure the ABS light goes out after reaching 3-5 mph. Sporadic ABS lights often indicate a failing wheel speed sensor or dirty fluid.
Inner Primary Leak
Check for oil misting or drips between the engine and primary case, which often indicates a failing inner primary bearing or seal.
Search
Current Ride
No ride selected
Recently viewed products
Your cart is empty