LYCOMING 543C Engine Seattle R680

( Brand: Lycoming ), ( Manufacturer Part Number: 543C ), ( Part Type: Hp Engine ), ( Compatible Model: V-77 Stinson Reliant ), ( Country Of Origin: United States )

Review LYCOMING Hp Engine Huge Parts Lot Free Shipping To Seattle fits 300

Precision Power with the Lycoming 543C R680 300 HP Engine - Seattle

Experience unparalleled performance and reliability with the Lycoming 543C R680 300 HP engine, now available in Seattle. This engine, a testament to Lycoming's engineering excellence, is designed to deliver exceptional power and efficiency in a compact, lightweight package.

The Lycoming 543C R680 engine is a six-cylinder, horizontally opposed, air-cooled powerhouse. It boasts a displacement of 541.2 cubic inches, ensuring ample power output for a wide range of applications. With a maximum takeoff power of 300 horsepower at 2700 RPM, this engine offers a potent blend of power and versatility.

The engine's robust construction is another standout feature. The R680 engine utilizes a high-strength, aluminum alloy crankcase, ensuring durability and longevity. The engine is also equipped with a high-compression forged aluminum piston, a precision-machined forged steel crankshaft, and a high-strength steel camshaft, all working in harmony to deliver smooth, responsive power.

The Lycoming 543C R680 engine is equipped with a modern fuel injection system, ensuring efficient combustion and reduced emissions. The engine is also compatible with both AVGAS and Jet A fuel, providing flexibility for various operations.

Maintenance is made easy with the engine's accessible design. The cylinders and accessories are easily accessible, reducing downtime and maintenance costs. The engine also features a long overhaul interval, further reducing maintenance requirements.

In conclusion, the Lycoming 543C R680 300 HP engine is a powerful, reliable, and efficient choice for those seeking high-performance power in Seattle. Whether for general aviation, agriculture, or industrial applications, this engine offers the perfect balance of power, reliability, and ease of maintenance. Upgrade your powertrain today with the Lycoming 543C R680 300 HP engine.

Pros and Cons of Buying a Lycoming 543C R680 300 HP Engine (Seattle)

1. High Power-to-Weight Ratio: The Lycoming 543C R680 engine offers a significant power output of 300 HP, making it suitable for a variety of aircraft applications. Its lightweight design ensures optimal performance and fuel efficiency.

2. Reliability: Lycoming engines are known for their durability and reliability. The 543C R680 engine is no exception, with a reputation for long-lasting operation and minimal maintenance requirements.

3. Wide Availability: As one of the most popular aircraft engines, the Lycoming 543C R680 is widely available for purchase, and replacement parts are easy to find.

4. Familiarity: Many aircraft mechanics are familiar with Lycoming engines, which can make servicing and maintenance easier and more cost-effective.

1. Cost: Compared to some other aircraft engines, the Lycoming 543C R680 can be relatively expensive, both in terms of the initial purchase price and ongoing maintenance costs.

2. Complexity: While the engine is generally reliable, its complexity can lead to more extensive and costly repairs if issues do arise.

3. Limited Speed: The 543C R680 engine may not be the best choice for high-speed aircraft due to its design limitations.

The Lycoming 543C R680 300 HP engine is a reliable and powerful choice for a wide range of aircraft applications. Its high power output, combined with its reputation for durability and wide availability, make it an attractive option for many aircraft owners. However, potential buyers should be aware of the engine's relatively high cost and complexity, as these factors can lead to higher maintenance costs and the potential for more extensive repairs.

For aircraft owners looking for a reliable and powerful engine for their aircraft, the Lycoming 543C R680 300 HP engine is a solid choice. It is recommended to consult with a certified aircraft mechanic to ensure that the engine is the best fit for your specific aircraft and flying needs. Additionally, carefully considering the costs associated with the engine, both initially and over its lifespan, is essential to make an informed purchasing decision.

Details:

Also save $200. Some parts might be new old stock. This was from an estate sale of a man putting spare motor together for his plane. All my discounted already parts for this engine are even less - 30% off.

I am having a sale.

part #: 543c prices

• $399.00-$550.00

specifications engineaviatio:

• for models: 300
• brand: Lycoming
• mpn: 543c
• part type: Hp Engine
• compatible model: V-77 Stinson Reliant
• country of origin: United States

seller engineaviatio:

• city: Ward Cove, Alaska
• rating: 99.7%
• # reviews: 6055

shipping engineaviatio:

payments engineaviatio:

• credit card: Mastercard
• other
• wallet: Apple-pay

general engineaviatio:

• condition: Used
• Aviation Parts Accessories > Engines > Engine Components

returns engineaviatio:

• time: 30 Days
• policy: Returns Accepted
• paid by: Buyer

offer engineaviatio:

• availability: In Stock
• started: November 24, 2025
• sold: 0
• options: Seller-arranged-local-pickup
• quantity: 1

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