2013 Harley-Davidson FLHTK Electra Glide Ultra Limited — Maintenance & Ownership Guide
Routine Maintenance
Key maintenance tasks to keep your 2013 Harley-Davidson FLHTK Electra Glide Ultra Limited running reliably.
Engine Oil
Requires 4 quarts of 20W-50; synthetic is highly recommended due to high operating temperatures of the 103 engine.
Primary/Transmission Fluid
Primary takes ~38 oz and Transmission takes ~32 oz. Using dedicated fluids like Formula+ is standard practice.
Air Filter
Standard paper filter (P/N 29633-08) is often replaced by high-flow Stage 1 kits for better cooling.
Common Wear Items
Parts that wear over time on the 2013 Harley-Davidson FLHTK Electra Glide Ultra Limited and should be inspected regularly.
Compensator Sprocket
The stock compensator is a known weak point; it can rattle or 'clunk' on startup as the internal springs weaken.
Brake Pads
Heavy touring bike wears through pads quickly, especially the rear if used for low-speed maneuvering.
Tires
Dunlop Multi-Tread tires are standard; rear tires typically last 10k-15k miles depending on load.
Popular Upgrades
The most popular aftermarket upgrades for the 2013 Harley-Davidson FLHTK Electra Glide Ultra Limited.
Stage 1 Kit
Combines a high-flow intake, exhaust, and tuner to reduce engine heat and improve throttle response.
LED Lighting
Upgrading to Daymaker-style LEDs significantly improves night visibility over the stock halogen bulbs.
Rear Suspension
Many owners replace the stock air shocks with coil-over shocks (Ohlins, Progressive) for a more consistent ride.
Common Replacement Parts
Parts that commonly need replacing on the 2013 Harley-Davidson FLHTK Electra Glide Ultra Limited.
Battery
Requires a high-CCA battery (66010-97) to turn over the high-compression 103ci engine.
Voltage Regulator
Common failure point on this era of Harley touring bikes, leading to charging system issues.
Used Buying Inspection Checklist
What to look for when buying a used 2013 Harley-Davidson FLHTK Electra Glide Ultra Limited.
Compensator Clunk
Listen for a loud metallic bang when starting the bike; this indicates the compensator is failing.
Inner Fairing Brackets
Check for vibration in the fairing; the internal vertical brackets are prone to snapping over time.
Steering Head Bearings
Perform a 'swing test' or check for front-end wobble at 40mph, which indicates loose or worn neck bearings.
Service Records for Fluids
Verify that the three separate oil cavities (Engine, Primary, Transmission) have been serviced regularly.
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