With its 123cc powerhead, the Mercury Propane outboard offers impressive power by delivering a true 5hp on an alternative clean-burning fuel.
FourStroke Propane 5hp
Output far beyond its size
Put amazing power in the palm of your hand. These compact outboard motors take you to the fun, the fish, or whatever floats your boat – quickly and reliably. Enjoy quick acceleration to go with exhilarating speed. Easy to install and operate, with reliable starting, low vibration, and instant throttle response. It's worry-free boating at its best.
Intuitive, Innovative Features
Clean, Powerful Performance
Easy Operation
With a pressurized fuel system, there’s no fuel priming required, so you can be ready to go as soon as you connect the propane. And with manual choke, you’ll enjoy fast, easy starts, even when the engine is cold.
Portability & Convenience
Simple to install and lightweight, a portable Mercury Propane outboard lets you power your adventures with the same propane used for your grill, eliminating the need to haul gasoline. It’s perfect for keeping at a lake house or as secondary propulsion stored on board a larger vessel.
Secondary Power for Sailboats
The 5hp Propane outboard comes in a Sail Power model that features a longer shaft, a high-thrust prop to control larger boats and a 12-volt, 4-amp/50-watt alternator.
Safety Enhancements
The fuel hose connector threads quickly and easily to the outboard, while propane auto shut-off valves on the engine and in the fuel-hose connector enhance safety on the water.
FourStroke Performance
Explore Farther
A single 20-pound (5-gallon) propane tank can fuel the 5hp Propane outboard for approximately six hours at full throttle.
Eco-Friendly Performance
Mercury 5hp Propane outboards produce 25% lower exhaust emissions than comparable gasoline-powered outboards.
Light & Powerful
Enjoy true 5hp performance, all in a package that starts as light as 59.5 pounds – ideal for powering compact jon boats, inflatables and other small boats.
FourStroke Advantage
Comfort
With a balanced powerhead and sophisticated, vibration-dampening cowl design, Mercury FourStroke outboards deliver an exceptionally smooth and quiet ride at any speed.
Durability
Premium corrosion-preventive technologies and durable components ensure FourStroke outboards can stand up to the most demanding marine environments.
Compact Design
Ideal for new engine setups or repowers, the slender width of a Mercury FourStroke outboard fits most transoms, including those with narrow engine wells and tight motor spacing.
Efficiency
Explore farther and stay out longer thanks to impressive power-to-weight ratios, intelligent fuel systems and optimized fuel injection (on most models) that maximize performance from every drop of fuel.
Engine Specifications by Horsepower
Warranty and Maintenance
Warranty Coverage
Mercury makes world-class marine products backed by world-class warranties. You can also add a Mercury Product Protection (MPP) extended service contract that covers certain expenses caused by defects in materials and workmanship after the Mercury Limited Warranty expires.
Maintenance
Mercury FourStroke outboards are thoughtfully designed to minimize maintenance and ensure you get the most joy from your time on the water.
Get the Latest Mercury News
Sign up for our email list to be among the first to hear the latest Mercury product updates and news.
Learn More About FourStroke Outboards at a Mercury Dealer
No one understands marine performance like your local Mercury Authorized Dealer. Contact a dealer today to learn how you could power your adventures with a FourStroke outboard.