LYCOMING AS13221 Cam O-360 A4A

( Brand: Lycoming ), ( Manufacturer Part Number: AS13221 ), ( Part Type: Cam )

Review LYCOMING A4a Cam Yellow Tag

The Lycoming O-360-A4A engine, specifically model number AS13221, is a horizontally opposed, four-cylinder, air-cooled aviation powerplant. This engine is a popular choice for light aircraft due to its reliability, efficiency, and robust design.

The O-360-A4A engine has a displacement of 183.2 cubic inches or 3,003.3 cubic centimeters. It features a compression ratio of 6.5:1, which provides excellent power output and fuel efficiency. The engine's bore and stroke dimensions are 3.58 inches by 3.62 inches (91.0 mm x 92.0 mm), respectively.

This engine is equipped with a single-point electronic ignition system, which ensures reliable ignition and easy starting. The engine also comes with a standard alternator, which provides electrical power for the aircraft's electrical systems. The O-360-A4A engine can produce approximately 160 horsepower at 2,700 RPM, making it a capable and responsive powerplant for a wide range of light aircraft applications.

The engine's cylinders are cooled via an air-cooling system, which consists of a large cowling that encloses the engine and provides a constant supply of cooling air. The engine's oil system includes a spin-on oil filter and a pressure relief valve, which help ensure that the engine remains lubricated and runs smoothly.

The Lycoming O-360-A4A engine is known for its durability and longevity. It is constructed from high-strength materials, including a forged crankshaft and aluminum cylinders. The engine is also equipped with a number of features that help reduce maintenance requirements, such as a self-contained oil cooler and a replaceable cylinder liner design.

The O-360-A4A engine is easy to install and maintain, making it a popular choice among aircraft builders and operators. It is compatible with a wide range of aircraft types and configurations, and can be used in both fixed-wing and rotary-wing applications. Overall, the Lycoming O-360-A4A engine is a versatile, reliable, and powerful powerplant that is well-suited to the demands of general aviation.

The Lycoming O-360-A4A engine, specifically model A13221, is a popular choice for light aircraft due to its reliability, durability, and good power-to-weight ratio. However, like any engine, it comes with its pros and cons.

1. Reliability: The O-360 series engines have a proven track record for durability and reliability. They are known for their longevity and ability to withstand rough usage.

2. Fuel Efficiency: The engine offers good fuel efficiency, which is an important consideration for aircraft owners and operators.

3. Easy to Maintain: The O-360 engines are considered easy to maintain, with parts readily available and a large user community to provide support and advice.

4. Wide Range of Applications: The engine is used in a wide range of light aircraft, making it a versatile choice for those looking to upgrade or build their own plane.

1. Weight: The O-360 engines are relatively heavy compared to some other options, which can impact aircraft performance and fuel efficiency.

2. Emissions: The engine produces higher emissions compared to more modern engines, which can be a concern for some operators and regulators.

3. Noise Level: The engine can be relatively loud, which can impact the flying experience for passengers and may require additional soundproofing.

In conclusion, the Lycoming O-360-A4A engine, specifically model A13221, offers reliability, durability, and good power-to-weight ratio, but comes with some drawbacks such as weight, emissions, and noise level. It is important for potential buyers to carefully consider their specific needs and priorities before making a decision.

If weight and noise level are not major concerns, and fuel efficiency and ease of maintenance are priority, then the Lycoming O-360-A4A engine could be a good choice. However, if weight and noise level are significant concerns, or if the buyer is looking for a more modern engine with better emissions, then other options may be worth considering. Ultimately, it is recommended to consult with an aviation expert or engineer to help determine the best engine for a specific application.

Details:

It comes with no warranty, but the manufacturer part number AS13221 ensures proper identification and compatibility specified equipment. The O-360 A4A Cam Yellow Tag is a part manufactured by Lycoming specifically for aviation use.

part #: as13221 prices

• $65.00-$990.00

specifications aviationpar:

• brand: Lycoming
• mpn: As13221
• part type: Cam

payments aviationpar:

• wallet: Google-pay
• credit card: Discover
• other

returns aviationpar:

• policy: No Returns

shipping aviationpar:

• transit: 5-11 Days
• class: Standard
• carrier: USPS
• type: Calculated
• cost: $7.36
• service: USPS Ground Advantage

general aviationpar:

• Parts Accessories > Aviation Parts Accessories > Parts
• condition: Used

seller aviationpar:

• city: Poplar Grove, Illinois
• rating: 100.0%
• # reviews: 42

offer aviationpar:

• availability: In Stock
• options: Ship-to-home
• best offers: True
• quantity: 1
• sold: 0
• started: June 6, 2025

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