ROTAX 4339947 Engine

( Brand: Rotax ), ( Manufacturer Part Number: 4339947 ), ( Part Type: Engine ), ( Country/region Of Manufacture: Austria )

Review ROTAX Engine Stroke Complete fits 503

The Rotax 4339947 503 engine is a high-performance, four-stroke, single-cylinder, air-cooled powerhouse designed for ultra-light aircraft and experimental aviation applications. This engine is known for its reliability, efficiency, and power, making it a popular choice among aviation enthusiasts and professionals alike.

The Rotax 4339947 503 engine features a displacement of 503 cubic centimeters, which is powered by a single-cylinder design. It operates on a four-stroke cycle, ensuring a smooth and efficient operation. The engine is air-cooled, which allows for easy maintenance and operation in various climates, without the need for complex cooling systems.

The engine is equipped with a carburetor fuel system, providing a reliable and consistent fuel supply. It has a dry sump oil system, which helps to reduce weight and improve engine performance by keeping the oil separated from the crankcase. The engine also has a mechanical fuel injection system, which can improve fuel efficiency and reduce emissions.

The Rotax 4339947 503 engine is known for its high power-to-weight ratio, delivering a significant amount of power while maintaining a lightweight design. It has a maximum power output of 58 horsepower at 5500 RPM, and a maximum torque of 38.7 foot-pounds at 4500 RPM. This engine is also known for its high compression ratio, which can help improve engine performance and efficiency.

The engine is designed with ease of maintenance in mind. It has a detachable cylinder head, which allows for easy access to internal components. The engine also has a replaceable crankshaft main bearing, which can help extend the engine's lifespan.

In terms of durability, the Rotax 4339947 503 engine is built with high-quality materials, including a forged crankshaft and a high-strength connecting rod. The engine is also equipped with a safety wire system, which helps to prevent critical engine components from coming loose during operation.

Overall, the Rotax 4339947 503 engine is a powerful, reliable, and efficient engine that is well-suited for a variety of ultra-light aircraft and experimental aviation applications. Its high power-to-weight ratio, ease of maintenance, and durable design make it a popular choice among aviation enthusiasts and professionals.

1. Reliability: Rotax engines are known for their durability and reliability, making them a popular choice for many applications.

2. Power: The Rotax 503 engine is a powerful and efficient engine, capable of delivering high horsepower and torque.

3. Maintenance: Rotax engines are easy to maintain and service, which can save you time and money in the long run.

4. Wide Availability: Rotax engines are widely available and supported by a large network of dealers and service centers, making it easy to find parts and service.

1. Cost: Rotax engines can be expensive, especially compared to other engine options.

2. Availability of Modifications: While Rotax engines are widely available, some modifications or upgrades may be harder to find or more expensive due to their popularity.

3. Weight: Rotax engines can be heavier than some other engine options, which may impact the overall weight and performance of your vehicle.

The Rotax 4339947 503 Engine is a reliable and powerful engine option, but its high cost and potential weight impact are important considerations. If you value reliability, power, and easy maintenance, the Rotax 503 engine may be a good fit for your needs. However, if you are looking for a more affordable or lighter engine option, you may want to consider other options. Ultimately, the best engine for you will depend on your specific needs and budget.

If you are in the market for a powerful and reliable engine, the Rotax 4339947 503 Engine is a strong contender. However, be sure to consider the potential costs and weight impact before making a decision. It may be helpful to research and compare other engine options to ensure that the Rotax 503 is the best fit for your needs and budget.

Details:

Its a 2 cylinder, stroke, pull start engine, with redundant coils, and spark plugs. Was mounted on a Powered Parachute. Total hours on the engine are unknown, but it ran fine that last time was run, which has been a few years, always stored in doors. Comes complete with carburetor, muffler, engine mounting bolts, and plate, a fuel pump.

part #: 4339947 prices

• $149.99-$2800.00

specifications engineaviatio:

• for models: 503
• brand: Rotax
• mpn: 4339947
• part type: Engine
• country/region of manufacture: Austria

returns engineaviatio:

• policy: No Returns

seller engineaviatio:

• rating: 100.0%
• # reviews: 647
• city: Billings, Montana

shipping engineaviatio:

• class: Standard
• carrier: USPS
• service: USPS Ground Advantage
• type: Fixed
• cost: $100.00
• transit: 6-10 Days

payments engineaviatio:

• wallet: Apple-pay
• credit card: Mastercard

offer engineaviatio:

• started: May 1, 2024
• quantity: 1
• sold: 0
• availability: In Stock
• options: Ship-to-home

general engineaviatio:

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

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