The DLE 55RA takes 50–55cc class performance to a whole new level. With its rear-exhaust design, lightweight piston, and precision-built internals, this engine delivers fast throttle response, outstanding reliability, and more power than the standard DLE-55, producing an impressive 5.5 horsepower at 8,500 RPM.

The rear-exhaust layout makes the DLE 55RA ideal for models requiring clean installations or tuned pipe setups, while the CNC-machined components and advanced porting ensure smooth running and long-term durability. Included with the engine is a Pitts-style muffler, spark plug, standoffs, electronic ignition, and an integrated choke rod guide, everything you need for a clean, efficient installation.

The DLE 55RA is widely regarded as one of the strongest and most reliable single-cylinder petrol engines on the market, perfect for aerobatics, 3D flying, scale models, and high-performance sport aircraft.

Key Features

• Rear-exhaust design for compact installations and tuned pipe compatibility

• Produces 5.5 hp @ 8,500 RPM

• Lightweight piston for rapid throttle response

• Advanced CNC machining for strength and longevity

• Includes Pitts-style muffler for efficient exhaust flow

• Electronic ignition for easy starting and smooth running

• Integrated choke rod guide for simple setup

• Improved performance over the standard DLE-55

Perfect For

• 50–60cc class aerobatic aircraft

• 3D models requiring high torque

• Warbirds with tight cowls or tuned pipe routing

• Large sport planes

Product Summary

High-power 55cc rear-exhaust petrol engine delivering 5.5 hp, smooth response, and superior installation flexibility. Complete with muffler, standoffs, and ignition system.

Specifications

• Stock Number: DLEG0455

• Displacement: 55.6 cc (3.39 cu in)

• Bore: 1.76 in (45 mm)

• Stroke: 1.37 in (35 mm)

• Output: 5.5 hp @ 8,500 RPM

Weight:

• Engine: 3.74 lb (1.33 kg)

• Muffler: 3.17 oz (90 g)

• Ignition Module: 5.11 oz (145 g)

Requirements:

• Unleaded petrol + 2-stroke oil

• Ignition battery

• Propeller

Included:
Electronic ignition, Pitts-style muffler, spark plug, engine standoffs, rear-mounted carburettor, integrated choke rod guide.

Why Buy From ProBuild Aircraft Ltd

• ✅ Official UK DLE Stockist – 100% Genuine Engines

• ✅ Trusted by Top International RC Pilots Worldwide

• ✅ Fast, Reliable UK Shipping

• ✅ Expert Advice & After-Sales Support

• ✅ Trusted by RC Pilots Since 1993