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Continental IO-520-CB Engine | Beechcraft Baron C55, D55, E55, 58

IO-520-A, -BB, IO-520-CB, -D, -E, -F, -J, -L, -MB | LTSIO-520-AE | TSIO-520-AE, -AF, -BB, -BE, -C, -CE, -E, -EB, -G, -H, -M, -NB, -P, -R, -T, -UB, -VB, -WB | GTSIO-520-H, -L, -M

What do you say about an engine family that ranges in power from 285 hp all the way to 375 HP? Innovative? Versatile? Amazing? How about all of the above? Continental^® introduced the first 500 series engine to the world in the Beechcraft^® Bonanza and the Cessna^® Centurion in 1964. The 500 series includes both 520 and 550 cubic-inch models in either naturally aspirated or turbocharged configurations.

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

Featured products

I0520CB41BN Continental Engine - NEW IO-520-CB41

PN: I0520CB41BN

Out of stock

$66,415.00

I0520CB8BN Continental Engine - NEW IO-520-CB8

PN: I0520CB8BN

Out of stock

$66,415.00

I0520CB3BN Continental Engine - NEW IO-520-CB3

PN: I0520CB3BN

Out of stock

$66,415.00

I0520CB9BN Continental Engine - NEW IO-520-CB9

PN: I0520CB9BN

Out of stock

$66,094.00

I0520CB38BR Continental Engine - REBUILT IO-520-CB38

PN: I0520CB38BR

Out of stock

Call for pricing

I0520CB3BR Continental Engine - REBUILT IO-520-CB3

PN: I0520CB3BR

Out of stock

$59,406.00

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Continental IO-520-CB Engine – For Beechcraft Baron C55, D55, E55, and 58

Continental IO-520-CB Engine The Continental IO-520-CB supersedes the original IO-520-C and is the current factory offering for a wide range of twin-engine Beechcraft Baron aircraft, including the C55, D55, E55, and 58 models. This 285-horsepower, six-cylinder, fuel-injected engine is known for smooth, reliable operation and long-term durability in demanding flight environments.

Each IO-520-CB from Air Power comes equipped with a Tempest spin-on oil filter (unless the configuration uses an internal screen) and a full set of Tempest spark plugs—included at no extra cost. This is now standard across all Continental engine shipments from Air Power.

Aircraft Applications

Beechcraft Baron C55
Beechcraft Baron D55
Beechcraft Baron E55
Beechcraft Baron 58

Engine Specifications

Power: 285 HP @ 2700 RPM
Displacement: 520 in³ (8.5 L)
Fuel System: Continental continuous-flow fuel injection
Cylinders: 6-cylinder, horizontally opposed
Cooling: Air-cooled
Compression Ratio: 8.5:1
Standard Accessories: Tempest spin-on oil filter, Tempest spark plugs

What We Need to Know to Properly Spec Your Engine

Aircraft make and model
Alternator amperage (e.g., 60A, 95A)
Electrical system: 12 volt or 24 volt?
Tachometer drive type: Mechanical or electrical?

Continental RFQ Process

Some configurations are available from stock. If your Baron requires a nonstandard spec, we will submit a Request for Quote (RFQ) to Continental Aerospace Technologies for pricing and lead time confirmation.

Typical turnaround: 5–7 business days
Includes: Factory-reviewed quote and build specification confirmation

Why Buy from Air Power?

Air Power is the largest distributor of Continental engines worldwide and Continental’s preferred engine partner. We offer expert technical support, unmatched pricing, and streamlined ordering to keep your Baron flying with factory-backed power.

Request a quote today to speak with an experienced engine specialist who will walk you through the spec process and ensure a perfect fit for your airframe.