Continental IO-550-B Engine | Bonanza & T-34 Conversion
IO-550-A, IO-550-B, -C, -D, -E, -F, -G, -L, -N | TSIO-550-B, -C, -E, -G, -K, -N
The Continental® IO-550-B engine is a powerhouse in the skies, boasting a 6-cylinder, direct-drive, horizontally opposed design that cranks out a solid 300 horsepower at 2700 RPM. Known for its beefy performance and reliability, the IO-550-B gives pilots the extra "oomph" they need for long, sustained flights. Whether you're taking to the clouds for a cross-country journey or fine-tuning your aircraft for peak performance, the Continental® IO-550-B has your six.
Financing is available from the Van Bortel Finance Corporation for all new and rebuilt Continental® engines for sale at Air Power Inc.
I0550B129BN Continental Continental Engine - NEW IO-550-B129
Out of stock
I0550B128BN Continental Continental Engine - NEW IO-550-B128
Out of stock
Continental IO-550-B Engine – Factory New
The Continental IO-550-B is the engine of choice for owners and operators of the Beechcraft Bonanza series. Producing a powerful 300 horsepower at 2700 RPM, this factory-new six-cylinder engine is a trusted upgrade for Bonanza models seeking improved climb, cruise, and fuel efficiency.
Air Power, Inc. is the largest worldwide distributor of Continental engines and Continental's Preferred Engine Provider. Our expert engine team provides unmatched product support, technical expertise, and value.
Why the IO-550-B is Perfect for the Bonanza
Designed for high-performance, single-engine aircraft, the IO-550-B is a direct replacement and popular STC upgrade for many Bonanza models. Whether you’re restoring a legacy airframe or improving a high-utilization aircraft, this engine delivers smooth, reliable performance that Bonanza owners swear by.
Engine Specifications
- Model: IO-550-B
- 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-B
Aircraft Compatibility
The IO-550-B is most commonly installed in the following aircraft:
- Beechcraft Bonanza A36 – as a standard or upgraded engine
- Beechcraft Bonanza F33A
- Beechcraft Debonair (via STC conversions)
Factory-Backed Reliability
Continental’s IO-550 series engines are known for long life, dependable starts, and smooth operation. The IO-550-B features a continuous flow fuel injection system that ensures optimal fuel delivery, making this engine ideal for cross-country performance and high-altitude efficiency.
Buy with Confidence from Air Power
When you purchase from Air Power, you gain more than just an engine—you gain a partner. Our team supports you through ordering, logistics, and installation, and ensures your engine arrives with proper documentation, logbooks, and warranty coverage direct from the factory.
Order the IO-550-B Today
Contact us today for pricing, availability, or assistance matching your Bonanza model. We ship worldwide and offer support every step of the way.
