Continental IO-520-L Engine – For Cessna 210

The Continental IO-520-L is a 285 horsepower fuel-injected engine trusted by operators of the Cessna 210. Built for smooth, efficient high-performance flying, the IO-520-L delivers a dependable combination of power and fuel economy—making it one of the most proven six-cylinder engines in general aviation.

Every factory new or rebuilt engine from Air Power ships with a Tempest Spin-On Oil Filter (when applicable) and a full set of Tempest Spark Plugs included at no extra cost.

Aircraft Applications

• Cessna 210

Engine Specifications

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

What We Need to Know to Properly Spec Your IO-520-L

There are several variations of the IO-520-L depending on aircraft year and equipment. Please be prepared to provide:

• New or rebuilt?
• 12V or 24V electrical system?
• Oil Cooler Type: 7.88", 8.88", or 9.82" decongealing oil cooler?
• Oil Filter: Spin-on or screen type?

Recommended Alternator Upgrade

The IO-520-L typically does not include an alternator. Air Power strongly recommends upgrading to a Plane Power alternator for improved reliability and electrical performance.

Continental RFQ Process

For uncommon engine specs, we submit a Request for Quote (RFQ) to Continental. This ensures exact configuration, pricing, and lead time verification.

• Processing time: 5–7 business days
• Includes: Factory-reviewed specs, price, and estimated delivery

Why Buy from Air Power?

Air Power is the largest worldwide distributor of Continental engines and the factory's preferred provider. We specialize in helping Cessna 210 owners and mechanics identify the right IO-520-L configuration and avoid costly mistakes or delays. Let our experienced team guide your order from RFQ to delivery.

Contact us today to get started on your quote.