The 500 Series is a family of 6-cylinder, air-cooled, horizontally opposed, direct-drive aircraft engines with hydraulic lifters, 2 pushrod-actuated valves per cylinder, wet oil sump and fuel injection with manual mixture control or FADEC control.
Certified Fuels
100/100LL (520)
100/100LL and 94UL avgas (550)
Displacement
8514 cm3520 cu.in (520)
9046 cm3 552 cu.in (550)
Power
86.4 to 242.2 kW250 to 325 hp (520)
209 to 261 kW280 to 350 hp (550)
Maximum Rated RPM
2400 to 2850 r/min2400 to 2850 rpm (520)
2500 to 2700 r/min2500 to 2700 rpm (550)
Bore
133.4 mm5.25 in
Stroke
101.6 mm4.00 in (520)
107.95 mm4.25 in (550)
Compression Ratio
7.5:1 (turbocharged) and 8.5:1 (naturally aspirated)
Height
477 to 1030.22 mm18.78 to 40.56 in (520)
501.7 to 933.2 mm19.75 to 36.74 in (550)
Width
845.57 to 1079.5 mm33.29 to 42.5 in (520)
852.4 to 1076.7 mm33.56 to 42.39 in (550)
Length
933.2 to 1616.2 mm36.74 to 63.63 in (520)
933.2 to 1215.6 mm36.74 to 47.86 in (550)
Dry Weight
165.5 to 253.1 kg364.8 to 558 lbs (520)
191.2 to 285.0 kg421.6 to 571 lbs (550)
Turbo and FADEC Model Availability
Yes (550)
* Most engine models manufactured after February 2012 have a TBO increase of 200 hours. Engines used in frequent type service have an additional 200 hour increase. See Service Information Letter SIL98-9B for details.