Continental IO-520-F Engine – For Cessna 206, 207, and U206B

The Continental IO-520-F is a 285 horsepower, fuel-injected, six-cylinder engine commonly used in Cessna 206, 207, and U206B models. Renowned for its strong performance and field reliability, the IO-520-F is built to perform in rugged, utility-style aircraft operating in remote or high-demand environments.

All IO-520-F engines sold by Air Power include a Tempest Spin-On Oil Filter (if applicable) and a complete set of Tempest Spark Plugs at no additional charge.

Aircraft Applications

• Cessna 206
• Cessna 207
• Cessna U206B

Engine Specifications

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

What We Need to Know to Properly Spec Your Engine

The IO-520-F family offers multiple configuration variants depending on airframe and accessory requirements. To ensure the right fit, we’ll need the following details:

• Aircraft make and model
• New or rebuilt preference
• Magneto Type: S6RN-1225 or S6RSC-25 (both impulse coupling)
• Electrical System: 12 or 24 volt?
• Oil Cooler Type: 7.88", 8.88", or 9.82" decongealing cooler?
• Oil Filter: Spin-on or screen-type?
• Alternator Mount Provision: Is the mount cast into the engine leg?
• Oil Sump Drain Location: Rear or left side near the rear?

Alternator Recommendation

Most IO-520-F configurations do not include an alternator. Air Power strongly recommends upgrading to the Plane Power line of alternators for optimal reliability and ease of installation.

Continental RFQ Process

Need an uncommon configuration? No problem—Air Power will submit a Request for Quote (RFQ) directly to Continental Aerospace Technolo

Financing is available from the Van Bortel Finance Corporation for all new and rebuilt Continental® engines at Air Power Inc.