Continental IO-550-N Engine – Factory New or Rebuilt

The Continental IO-550-N is a fuel-injected, six-cylinder powerhouse delivering 310 horsepower at 2700 RPM. It is the factory-standard engine for the Cirrus SR22 and is also widely used in Columbia 300/350 aircraft and high-performance experimental builds like the Lancair Legacy. The IO-550-N is also the base engine for many turbonormalized systems (SR22TN, Tornado Alley conversions).

Air Power, Inc. is Continental’s #1 global distributor, providing factory new and rebuilt IO-550-N engines with expert technical support, fast lead times, and full compliance with airframe and STC specifications.

Primary Aircraft Applications

• Cirrus SR22 (standard and turbonormalized)
• Cirrus SR22TN (with Tornado Alley Turbo or similar systems)
• Columbia 300 / Columbia 350
• Lancair Legacy (experimental / high-performance)

Engine Specifications

• Model: IO-550-N
• Power Output: 310 HP @ 2700 RPM
• Displacement: 552 in³ (9.05 L)
• Compression Ratio: 8.5:1
• Weight: Approx. 470–490 lbs depending on configuration
• Fuel Type: 100/100LL AvGas
• TBO: 2,000 hours

What We Need to Know to Properly Configure Your IO-550-N

To match your engine to the correct STC, OEM airframe, or experimental build, we’ll confirm the following:

• Aircraft Make & Model:
  Cirrus SR22, Columbia, or experimental? SR22TN installations may require different provisions than standard normally aspirated builds.
• Electrical System:
  Confirm if you need a 12-volt or 24-volt system. 
• Engine Mount:
  Does your aircraft require a 4-point or 6-point mount configuration? Cirrus SR22s typically use 6-point Dynafocal mounts
• Turbonormalized System:
  Yes or No?