500 ‒ Series

What do you say about an engine family that ranges in power from 250 hp all the way to 350 hp? Innovative? Versatile? Amazing? How about all of the above? Continental^® introduced the first 520 series engine to the world in the Beechcraft^® Bonanza and the Cessna^® Centurion in 1964. The 520 series includes 520 cubic-inch models in either naturally aspirated or turbocharged configurations. The 550 series included 550 cubic-inch models in either naturally aspirated or turbocharged configurations. There are FADEC models available in the 550 series. With the right combination of thrust and efficiency, our 520 and 550-series engines have powered some of the most successful aircraft in general aviation history.

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Stock Engine List

Download 520 Datasheet

Download 550 Datasheet

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 AvGas (520)
100/100LL and 94UL(TSIO-550-K Only) AvGas (550)

Displacement

8514 cm³520 in³ (520)
9046 cm³ 552 in³ (550)

Power

86.4 to 242.2 kW250 to 325 HP (520)
209 to 261 kW280 to 350 HP (550)

Maximum Rated RPM

2600 to 3400 r/min2600 to 3400 rpm (520)
2500 to 2700 r/min2500 to 2700 rpm (550)

Bore

133.4 mm 5.25 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.

520 Series Details

Model	# CYL	Rated Power¹	Bore x Stroke	Displacement	Typical Weight²	Certified Fuel Grade	Compression Ratio	Time Before Overhaul (TBO)³	FAA TCDS
IO-520-BB	6	213 kW @ 2700	133.4 x 101.6 mm	8514 cm³	207 kg	100/100LL	8.5:1	Up to 2100 hrs or 12 years	E5CE
IO-520-BB	6	285 HP @ 2700	5.25 x 4.00 in	520 in³	457 lbs	100/100LL	8.5:1	Up to 2100 hrs or 12 years	E5CE
IO-520-CB, MB	6	213 kW @ 2700	133.4 x 101.6 mm	8514 cm³	204 kg	100/100LL	8.5:1	Up to 2100 hrs or 12 years	E5CE
IO-520-CB, MB	6	285 HP @ 2700	5.25 x 4.00 in	520 in³	449 lbs	100/100LL	8.5:1	Up to 2100 hrs or 12 years	E5CE
IO-520-D, E, F, K, L	6	213 kW @ 2700	133.4 x 101.6 mm	8514 cm³	208 kg	100/100LL	8.5:1	Up to 2100 hrs or 12 years	E5CE
IO-520-D, E, F, K, L	6	285 HP @ 2700	5.25 x 4.00 in	520 in³	458 lbs	100/100LL	8.5:1	Up to 2100 hrs or 12 years	E5CE
IO-520-A, J	6	213 kW @ 2700 (224@2850)	133.4 x 101.6 mm	8514 cm³	209 kg	100/100LL	8.5:1	Up to 2100 hrs or 12 years	E5CE
IO-520-A, J	6	285 HP @ 2700 (300@2850)	5.25 x 4.00 in	520 in³	460 lbs	100/100LL	8.5:1	Up to 2100 hrs or 12 years	E5CE
TSIO-520-BB,C,DB,H,KB	6	213 kW @ 2700	133.4 x 101.6 mm	8514 cm³	214 kg	100/100LL	7.5:1	Up to 1800 hrs or 12 years	E8CE
TSIO-520-BB,C,DB,H,KB	6	285 HP @ 2700	5.25 x 4.00 in	520 in³	471 lbs	100/100LL	7.5:1	Up to 1800 hrs or 12 years	E8CE
L/TSIO-520-AE	6	186 kW @ 2400	133.4 x 101.6 mm	8514 cm³	184 kg	100/100LL	7.5:1	Up to 2400 hrs or 12 years	E8CE
L/TSIO-520-AE	6	250 HP @ 2400	5.25 x 4.00 in	520 in³	405 lbs	100/100LL	7.5:1	Up to 2400 hrs or 12 years	E8CE
TSIO-520-EB	6	224 kW @ 2700	133.4 x 101.6 mm	8514 cm³	217 kg	100/100LL	7.5:1	Up to 1800 hrs or 12 years	E8CE
TSIO-520-EB	6	300 HP @ 2700	5.25 x 4.00 in	520 in³	478 lbs	100/100LL	7.5:1	Up to 1800 hrs or 12 years	E8CE
TSIO-520-UB	6	224 kW @ 2700	133.4 x 101.6 mm	8514 cm³	233 kg	100/100LL	7.5:1	Up to 2000 hrs or 12 years	E8CE
TSIO-520-UB	6	300 HP @ 2700	5.25 x 4.00 in	520 in³	513 lbs	100/100LL	7.5:1	Up to 2000 hrs or 12 years	E8CE
TSIO-520-JB, LB, T	6	231 kW @ 2700	133.4 x 101.6 mm	8514 cm³	259 kg	100/100LL	7.5:1	Up to 1800 hrs or 12 years	E8CE
TSIO-520-JB, LB, T	6	310 HP @ 2700	5.25 x 4.00 in	520 in³	511 lbs	100/100LL	7.5:1	Up to 1800 hrs or 12 years	E8CE
TSIO-520-NB	6	231 kW @ 2700	133.4 x 101.6 mm	8514 cm³	222 kg	100/100LL	7.5:1	Up to 2000 hrs or 12 years	E8CE
TSIO-520-NB	6	310 HP @ 2700	5.25 x 4.00 in	520 in³	489 lbs	100/100LL	7.5:1	Up to 2000 hrs or 12 years	E8CE
TSIO-520-G, M, R	6	213 kW @ 2600 (231@2700)	133.4 x 101.6 mm	8514 cm³	206 kg	100/100LL	7.5:1	Up to 2000 hrs or 12 years	E8CE
TSIO-520-G, M, R	6	285 HP @ 2600 (310@2700)	5.25 x 4.00 in	520 in³	454 lbs	100/100LL	7.5:1	Up to 2000 hrs or 12 years	E8CE
TSIO-520-BE	6	231 kW @ 2600	133.4 x 101.6 mm	8514 cm³	252 kg	100/100LL	7.5:1	Up to 2400 hrs or 12 years	E8CE
TSIO-520-BE	6	310 HP @ 2600	5.25 x 4.00 in	520 in³	555 lbs	100/100LL	7.5:1	Up to 2400 hrs or 12 years	E8CE
TSIO-520-P	6	213 kW @ 2600 (231@2700)	133.4 x 101.6 mm	8514 cm³	206 kg	100/100LL	7.5:1	Up to 2000 hrs or 12 years	E8CE
TSIO-520-P	6	285 HP @ 2600 (310@2700)	5.25 x 4.00 in	520 in³	455 lbs	100/100LL	7.5:1	Up to 2000 hrs or 12 years	E8CE
TSIO-520-AF	6	213 kW @ 2600 (231@2700)	133.4 x 101.6 mm	8514 cm³	243 kg	100/100LL	7.5:1	Up to 2000 hrs or 12 years	E8CE
TSIO-520-AF	6	285 HP @ 2600 (310@2700)	5.25 x 4.00 in	520 in³	536 lbs	100/100LL	7.5:1	Up to 2000 hrs or 12 years	E8CE
TSIO-520-WB	6	242.2 kW @ 2700	133.4 x 101.6 mm	8514 cm³	251 kg	100/100LL	7.5:1	Up to 2000 hrs or 12 years	E8CE
TSIO-520-WB	6	325 HP @ 2700	5.25 x 4.00 in	520 in³	559 lbs	100/100LL	7.5:1	Up to 2000 hrs or 12 years	E8CE
GTSIO-520-D, H	6	280 kW @ 3400	133.4 x 101.6 mm	8514 cm³	261 kg	100/130	7.5:1	Up to 1800 hrs or 12 years	E7CE
GTSIO-520-D, H	6	375 HP @ 3400	5.25 x 4.00 in	520 in³	576 lbs	100/130	7.5:1	Up to 1800 hrs or 12 years	E7CE
GTSIO-520-L	6	280 kW @ 3350	133.4 x 101.6 mm	8514 cm³	264 kg	100/100LL	7.5:1	Up to 1800 hrs or 12 years	E7CE
GTSIO-520-L	6	375 HP @ 3350	5.25 x 4.00 in	520 in³	581 lbs	100/100LL	7.5:1	Up to 1800 hrs or 12 years	E7CE
GTSIO-520-M	6	280 kW @ 3350	133.4 x 101.6 mm	8514 cm³	263 kg	100/100LL	7.5:1	Up to 1600 hrs or 12 years	E7CE
GTSIO-520-M	6	375 HP @ 3350	5.25 x 4.00 in	520 in³	580 lbs	100/100LL	7.5:1	Up to 1600 hrs or 12 years	E7CE

550 Series Details

Model	# CYL	Rated Power¹	Bore x Stroke	Displacement	Typical Weight²	Certified Fuel Grade	Compression Ratio	Time Before Overhaul (TBO)³	FAA TCDS
O-550-A	6	224 kW @ 2700	133.4 x 108.0 mm	9046 cm³	207 kg	100/100LL,B95/130 CIS, RH95/130	8.5:1	Up to 2100 hrs or 12 years	E3S0
O-550-A	6	300 HP @ 2700	5.25 x 4.25 in	552 in³	456 lbs	100/100LL,B95/130 CIS, RH95/130	8.5:1	Up to 2100 hrs or 12 years	E3S0
IO-550-B	6	224 kW @ 2700	133.4 x 108.0 mm	9046 cm³	216 kg	100/100LL	8.5:1	Up to 2100 hrs or 12 years	E3S0
IO-550-B	6	300 HP @ 2700	5.25 x 4.25 in	552 in³	476 lbs	100/100LL	8.5:1	Up to 2100 hrs or 12 years	E3S0
IO-550-C	6	224 kW @ 2700	133.4 x 108.0 mm	9046 cm³	218 kg	100/100LL	8.5:1	Up to 2100 hrs or 12 years	E3S0
IO-550-C	6	300 HP @ 2700	5.25 x 4.25 in	552 in³	481 lbs	100/100LL	8.5:1	Up to 2100 hrs or 12 years	E3S0
IO-550-D, E, F, L	6	224 kW @ 2700	133.4 x 108.0 mm	9046 cm³	211 kg	100/100LL	8.5:1	Up to 2100 hrs or 12 years	E3S0
IO-550-D, E, F, L	6	300 HP @ 2700	5.25 x 4.25 in	552 in³	466 lbs	100/100LL	8.5:1	Up to 2100 hrs or 12 years	E3S0
IO-550-G	6	209 kW @ 2500	133.4 x 108.0 mm	9046 cm³	231 kg	100/100LL	8.5:1	Up to 2400 hrs or 12 years	E3S0
IO-550-G	6	280 HP @ 2500	5.25 x 4.25 in	552 in³	509 lbs	100/100LL	8.5:1	Up to 2400 hrs or 12 years	E3S0
IO/IOF-550-N, P, R	6	231 kW @ 2700	133.4 x 108.0 mm	9046 cm³	225 kg	100/100LL	8.5:1	Up to 2400 hrs or 12 years	E3S0
IO/IOF-550-N, P, R	6	310 HP @ 2700	5.25 x 4.25 in	552 in³	496 lbs	100/100LL	8.5:1	Up to 2400 hrs or 12 years	E3S0
TSIO-550-C	6	231 kW @ 2600	133.4 x 108.0 mm	9046 cm³	302 kg	100/100LL	7.5:1	Up to 2400 hrs or 12 years	E5S0
TSIO-550-C	6	310 HP @ 2600	5.25 x 4.25 in	552 in³	665 lbs	100/100LL	7.5:1	Up to 2400 hrs or 12 years	E5S0
TSIO-550-E	6	261 kW @ 2600	133.4 x 108.0 mm	9046 cm³	307 kg	100/100LL	7.5:1	Up to 2000 hrs or 12 years	E5S0
TSIO-550-E	6	350 HP @ 2600	5.25 x 4.25 in	552 in³	677 lbs	100/100LL	7.5:1	Up to 2000 hrs or 12 years	E5S0
TSIO-550-G	6	231 kW @ 2700	133.4 x 108.0 mm	9046 cm³	251 kg	100/100LL	7.5:1	Up to 2400 hrs or 12 years	E5S0
TSIO-550-G	6	310 HP @ 2700	5.25 x 4.25 in	552 in³	554 lbs	100/100LL	7.5:1	Up to 2400 hrs or 12 years	E5S0
TSIO-550-K, N	6	235 kW @ 2500	133.4 x 108.0 mm	9046 cm³	285 kg	100/100L (UL94- K Only)	7.5:1	Up to 2400 hrs or 12 years	E5S0
TSIO-550-K, N	6	315 HP @ 2500	5.25 x 4.25 in	552 in³	628 lbs	100/100L (UL94- K Only)	7.5:1	Up to 2400 hrs or 12 years	E5S0
TSIO-550-D,J (FADEC)	6	261 kW @ 2600	133.4 x 108.0 mm	9046 cm³	320 kg	100/100LL	7.5:1	Up to 2400 hrs or 12 years	E5S0
TSIO-550-D,J (FADEC)	6	350 HP @ 2600	5.25 x 4.25 in	552 in³	706 lbs	100/100LL	7.5:1	Up to 2400 hrs or 12 years	E5S0
TSIOF-550-K (FADEC)	6	235 kW @ 2500	133.4 x 108.0 mm	9046 cm³	277 kg	100/100LL	7.5:1	Up to 2400 hrs or 12 years	E5S0
TSIOF-550-K (FADEC)	6	315 HP @ 2500	5.25 x 4.25 in	552 in³	610 lbs	100/100LL	7.5:1	Up to 2400 hrs or 12 years	E5S0
TSIOF-550-P (FADEC)	6	235 kW @ 2500	133.4 x 108.0 mm	9046 cm³	265 kg	100/100LL	7.5:1	Up to 2400 hrs or 12 years	E5S0
TSIOF-550-P (FADEC)	6	315 HP @ 2500	5.25 x 4.25 in	552 in³	585 lbs	100/100LL	7.5:1	Up to 2400 hrs or 12 years	E5S0

1. Engine rated power at sea level standard day inlet conditions (29.92 in Hg, 59°F, 0 water vapor) with maximum allowable cylinder head and oil temperatures with full rich (maximum) fuel flow.

2. Typical engine weight including all accessories.

3. See Maintenance Manual M-0 for details and applicability.