Continental IO-550-C Engine – Factory New

The Continental IO-550-C is a high-performance, six-cylinder, fuel-injected aircraft engine that delivers 300 horsepower at 2700 RPM. Built for multi-engine aircraft, the IO-550-C is the preferred engine for the iconic Beechcraft Baron 58.

As Continental’s top-selling IO-550 model, the -C variant is known for smooth operation, long life, and reliable performance in demanding flight conditions. Air Power, Inc. is the largest distributor of Continental engines worldwide and Continental's Preferred Engine Provider, offering unbeatable pricing, inventory availability, and dedicated customer support.

The Perfect Match for Baron 58 Operators

The IO-550-C is the standard powerplant for the Beechcraft Baron 58, widely regarded as the gold standard in piston twin-engine aircraft. Its proven track record and balanced performance make it the top engine upgrade or factory replacement for Baron operators around the world.

Engine Specifications

• Model: IO-550-C
• Configuration: 6-cylinder, horizontally opposed
• Displacement: 552 in³ (9.05 L)
• Power Output: 300 HP @ 2700 RPM
• Stroke: 4.25 in
• Compression Ratio: 8.5:1
• Dry Weight: 466.9 lbs (211.8 kg)
• Fuel Type: 100/100LL
• TBO: 1900 hours or 12 years
• OEM Part Number: IO-550-C

Aircraft Compatibility

The IO-550-C is most commonly installed in:

• Beechcraft Baron 58 (Factory OEM engine)
• Beechcraft Baron 58P / 58TC (as part of STC conversions or upgrades)
• Experimental multi-engine aircraft (select configurations)

Fuel Efficiency Meets Twin Engine Performance

With its continuous flow fuel injection system, the IO-550-C optimizes fuel usage at cruise while maintaining power through climbs and descents. This is especially critical in multi-engine aircraft where fuel flow balance and reliability are essential for mission success.

Why Buy From Air Power?

We are the #1 seller of Continental engines worldwide—trusted by fleet operators, overhaul facilities, and aircraft owners alike. Every engine includes full factory documentation, warranty, and expert guidance from our team. We keep IO-550-C engines in stock and ready to ship.

Order Now or Get a Quote

Call or email us to speak with an engine expert and get a detailed quote. We can help verify compatibility, coordinate shipping, and assist with documentation for your FAA logbooks and STC requirements.