Engine & Performance for 2015 Harley-Davidson FLHTKL Ultra Limited Low

Engine & Performance for the 2015 Harley-Davidson FLHTKL Ultra Limited Low

The 2015 Harley-Davidson FLHTKL Ultra Limited Low features Engine: Twin-Cooled™ High Output Twin Cam 103™ V-Twin, Displacement: 103.1 cu in (1690cc), Cooling: Twin-Cooled (Liquid-cooled heads with radiators in lowers), Fuel System: Electronic Sequential Port Fuel Injection (ESPFI). Owner note: Requires 4.0 quarts of 20W-50 motorcycle oil; synthetic is preferred for the Twin-Cooled engine due to high operating temperatures. Known concern: Water Pump Failure — Common fix is the 'M8 Pump Conversion Kit' which uses the more reliable 2017+ pump.. Learn more about this ride →