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

The Continental IO-550-G is a 300 horsepower, fuel-injected, 6-cylinder aircraft engine specifically designed for streamlined, high-performance single-engine aircraft. Most commonly found in the Mooney M20R Ovation and M20S Eagle, the IO-550-G is also a favorite in the experimental and homebuilt community for aircraft like the Lancair IV, Questair Venture, and the Cirrus VK-30.

Air Power, Inc. is the #1 global distributor for Continental engines, offering both factory new and rebuilt IO-550-G engines with rapid lead times, expert configuration matching, and factory-backed warranty support.

Aircraft Compatibility

• Mooney M20R Ovation
• Mooney M20S Eagle
• Lancair IV (experimental / kit-built)
• Questair Venture
• Cirrus VK-30

Engine Specifications

• Model: IO-550-G
• Power Output: 300 HP @ 2700 RPM
• Displacement: 552 in³ (9.05 L)
• Compression Ratio: 8.5:1
• Fuel System: Continuous Flow Fuel Injection
• Weight: Approx. 470 lbs depending on configuration
• Fuel Type: 100/100LL AvGas
• TBO: 1,700–1,900 hours

What We Need to Know Before You Order

To match the IO-550-G properly to your aircraft or STC/experimental build, we will confirm the following options during the quote process:

• New or Rebuilt:
  Choose from factory new or factory rebuilt IO-550-G engines. Both options include full Continental documentation and warranty.
• Electrical System:
  Does your aircraft require a 12-volt or 24-volt configuration? Most Mooney M20R/S installations are 24V, but some experimentals vary.
• Tachometer Drive:
  We must confirm if your installation uses a Hall Effect Sensor (digital tach) or a Mechanical CCW tachometer drive. This affects accessory case configuration.
• Vacuum Pump Drive:
  Do you require a vacuum pump drive provision on the accessory case? If your aircraft uses a standby vacuum system or gyros, this must be specified. Vacuumless digital panels may not require it.

Designed for Speed and Efficiency

The IO-550-G’s compact design and smooth power output make it a top choice for aerodynamic, low-drag airframes. Its strong cruise efficiency and throttle response are ideal for long cross-country flying, especially in the Mooney M20R Ovation and experimental composite aircraft.

Order With Confidence

Air Power’s expert engine team will help configure the correct accessory case layout, mounting provisions, and electrical compatibility for your platform. Every engine ships with factory paperwork, logbooks, and warranty coverage. We support certified aircraft, STC installations, and experimental projects worldwide.

Contact us today for a quote or to reserve a factory new or rebuilt IO-550-G engine for your Mooney, Cirrus, or kit-built aircraft.