Sparkplug:Cmapion QC12YC
Air cleaner:foam and paper elements
Bore/Stroke:3.56x3.062 inches (90 x 78 mm)
Displacement:502 cc (30.63 ci)
Oil capacity:1.75 qts (1.7 L)
Power (gross):17 hp (12.7 kW)
Sparkplug gap:0.030 inches (0.762 mm)
Starter volts:12
Engine options:17HP Briggs & Stratton 502cc 1-cyl gasoline
Engine detail 1:Briggs & Stratton 31F777 gasoline 1-cylinder air-cooled
Engine detail 2:Briggs & Stratton 31P777 gasoline 1-cylinder air-cooled
Original engine:Used on the XL 440 through the 2007 model year
Replacement engine:Used starting with the 2008 model year, tractor serial number 280000001