Description

Attention Magnum Engine Customers! Your favorite engine factory, MAGNUM, is BACK working in a new factory full of new tooling and equipment. This is a MAJOR upgrade to the production of Magnum engines. We ask for your patience while this process is completed. During this time we will do our best to stay in stock on key parts, however, engines will be in short supply. We are optimistic that the factory will have us back in stock with improved supply chain than ever before just in time to finish your projects for the 2025 spring flying season. We will send announcements when we receive more product. Please sign up on the mailing list!

This is a Magnum XL .52RFS R/C 4-Stroke Engine. The XL .52RFS is a single cylinder, four-stroke engine incorporating an aluminum piston, iron ring and steel sleeve for long life and high power output. A dual-needle valve carburetor for precise fuel/airflow metering is standard. The engine features a dual-ball bearing-supported crankshaft and camshaft, dual bushing-supported connecting rod, and a high-flow muffler for more power and reduced noise. Your Magnum XL RFS series engine was designed by expert engineers and built by master craftsmen using only the highest quality materials and CNC machinery. These qualities provide the long life and dependability you have come to expect from an engine of this caliber.

Features:

• Ringed Piston Design for Long Life and High Power
• Aluminum Piston, Iron Ring and Steel Sleeve
• Rear-Updraft, Dual Needle Carburetor
• High-Flow Quiet Muffler
• Dual Ball Bearing-Supported Crankshaft and Camshaft
• Dual Bushing-Supported Connecting Rod
• Blue Rocker Valve Cover
• Safety Propeller Nut

Specifications:

• Displacement: 8.53cc
• Bore: 23mm
• Stroke: 21mm
• Practical RPM: 2,000 to 10,500
• Weight with Muffler: 15.7oz
• Muffler Thread Size: M10 x 0.75mm
• Crankshaft Thread Size: 1/4 - 28
• Recommend Propeller Size: 12 x 6 (Break-In)
• Recommended Fuel: 10-20% Nitro, 18% Oil. We use PowerMaster 15% Two Stroke Sport Fuel.
• Recommended Glow Plug: Thunderbolt 4-stroke/Big Bore or OS Type F
• Shop parts for the XL52 Four Stroke Engine - Click Here
• Magnum Engine Parts Exploded-Views. Click Here
• Engine Dimensions Chart, Click Here