Continental TSIO-520-BB Engine – For Cessna 310 & 320D Skynight

The Continental TSIO-520-BB is the upgraded factory replacement for the earlier TSIO-520-B, delivering 285 horsepower of turbocharged performance in twin-engine configurations. Used in the Cessna 310 and Cessna 320D Skynight, this engine ensures balanced high-altitude performance and reliability for both personal and commercial operations.

Every TSIO-520-BB sold by Air Power includes a Tempest Spin-On Oil Filter (when applicable) and a full set of Tempest Spark Plugs at no additional charge.

Aircraft Applications

• Cessna 310 – Left or Right Engine
• Cessna 320D Skynight – Left or Right Engine

Engine Specifications

• Horsepower: 285 HP @ 2700 RPM
• Turbocharged: Yes
• Displacement: 520 cu in (8.5L)
• Fuel System: Continuous-flow fuel injection
• Cooling: Air-cooled
• Configuration: Horizontally opposed, 6-cylinder

What We Need to Know to Properly Spec Your TSIO-520-BB

• 12 or 24 volt electrical system?
• Left or right engine position?

Continental RFQ Process

Some configurations may require a factory quote. If so, Air Power will submit a Request for Quote (RFQ) to Continental Aerospace Technologies.

• Turnaround Time: 5–7 business days
• Result: Confirmed pricing and lead time based on exact configuration

Why Buy from Air Power?

As the largest worldwide distributor of Continental engines and the factory’s preferred supplier, Air Power provides unmatched expertise in twin-engine aircraft applications. We help you navigate configuration, match left and right engines, and avoid installation surprises with precision guidance.

Request your quote today and get your 310 or 320D back in the air—reliably and efficiently.