MERCURY MARINE Outboard Motors

Mercury Marine Outboard Motors

Power your next day on the water with Mercury Marine outboard motors from West Marine. Mercury outboards are built for a wide range of boating applications, from inflatable boats and dinghies to fishing boats, tenders, sailboats, and other recreational vessels. Shop Mercury FourStroke outboard motors from 2.5HP through 25HP, along with Mercury Avator electric outboards, accessories, batteries, chargers, and compatible equipment available from West Marine.

Shop Mercury Outboard Motors

Mercury FourStroke Outboard Motors

Mercury FourStroke outboard motors combine reliable four-stroke power with options for a variety of small-boat applications. West Marine carries Mercury FourStroke outboards ranging from compact 2.5HP portable motors to 25HP EFI models. Depending on the model, available configurations include different shaft lengths, manual or electric starting, tiller steering, and manual or power trim.

Mercury Portable Outboard Motors

A Mercury portable outboard motor can provide convenient propulsion for dinghies, inflatable boats, tenders, small fishing boats, jon boats, and auxiliary applications. Compact Mercury FourStroke models are designed to balance portability with dependable power, making them useful for boaters who may need to remove, transport, or store their motor between trips.

Mercury 2.5HP Outboard Motors

The Mercury 2.5HP FourStroke outboard provides compact gasoline-powered propulsion for compatible dinghies, tenders, inflatables, and other small boats. Its portable size makes it a practical choice when low weight, easy storage, and straightforward tiller operation are priorities.

Mercury 3.5HP & 4HP Outboard Motors

For boaters who need additional power while maintaining portability, consider Mercury 3.5HP and 4HP FourStroke outboards. These compact motors are well suited to appropriately rated inflatable boats, dinghies, tenders, and small recreational boats.

Mercury 6HP Outboard Motors

A Mercury 6HP FourStroke outboard offers additional power for compatible tenders, inflatables, small fishing boats, and sailboats. Available shaft configurations allow boaters to match the motor to different transom heights and applications.

Mercury 9.9HP Outboard Motors

Mercury 9.9HP FourStroke outboard motors are popular for small fishing boats, inflatables, tenders, jon boats, and auxiliary power applications. Available Mercury 9.9HP EFI tiller models offer electronic fuel injection, with configurations that can include short or long shafts and manual or electric starting.

Mercury 15HP Outboard Motors

Step up in power with a Mercury 15HP EFI FourStroke outboard. These motors provide a versatile propulsion option for appropriately rated fishing boats, inflatables, utility boats, tenders, and other small craft while offering the benefits of electronic fuel injection.

Mercury 20HP Outboard Motors

Mercury 20HP EFI FourStroke outboards provide additional performance for boaters powering compatible fishing boats, inflatables, jon boats, skiffs, and other recreational craft. Available configurations can include different shaft lengths, starting systems, and trim options to fit a variety of boat setups.

Mercury 25HP Outboard Motors

For boats requiring greater horsepower, Mercury 25HP EFI FourStroke outboard motors provide four-stroke power in configurations designed for a variety of recreational and fishing applications. Always match outboard horsepower, shaft length, weight, and controls to the specifications and maximum horsepower rating of your boat.

Mercury Avator Electric Outboard Motors

Experience quiet, all-electric propulsion with Mercury Avator electric outboard motors. Designed for boaters looking for an alternative to gasoline propulsion, the Avator family combines electric power with portable and integrated marine technology. West Marine carries Mercury Avator electric outboards along with compatible batteries, chargers, carrying bags, and accessories.

Mercury Avator 7.5e Electric Outboard

The Mercury Avator 7.5e electric outboard provides quiet electric propulsion for compatible small boats, dinghies, inflatables, tenders, and other lightweight craft. Available shaft lengths make it possible to match the Avator to different boat and transom configurations.

Mercury Avator 20e Electric Outboard

For boaters who need more electric propulsion, the Mercury Avator 20e electric outboard delivers increased power for compatible vessels. Available tiller models provide a compact electric propulsion solution for recreational boating, fishing, and other small-boat applications.

Mercury Avator Batteries & Chargers

Complete your electric propulsion system with compatible Mercury Avator batteries and chargers. Battery capacity, motor compatibility, charging time, range, and runtime should all be considered when building an Avator system for your boat.

Mercury Outboards for Dinghies & Inflatable Boats

A small Mercury outboard for a dinghy or inflatable boat can provide dependable transportation between your primary vessel and shore or serve as the main propulsion system for recreational exploring. Portable Mercury FourStroke motors in lower horsepower ranges are particularly well suited to appropriately rated tenders and inflatable boats.

What Size Mercury Outboard for a Dinghy?

The right outboard for a dinghy depends on boat length, hull design, passenger and gear weight, transom specifications, and the manufacturer's maximum horsepower rating. Smaller tenders may use compact 2.5HP to 6HP outboards, while larger compatible inflatables and dinghies may benefit from 9.9HP, 15HP, 20HP, or greater power. Never exceed the boat manufacturer's rated horsepower or weight capacity.

Mercury Outboards for Fishing Boats

Mercury outboard motors for fishing boats provide propulsion options for everything from small freshwater craft and jon boats to skiffs and other appropriately rated vessels. Consider your hull, typical passenger and gear load, desired speed, fishing environment, and boat manufacturer's specifications when choosing horsepower.

Mercury Outboards for Jon Boats

Compact Mercury FourStroke engines can be a good match for many appropriately rated jon boats and small fishing boats. Horsepower requirements vary significantly with boat length, hull weight, load, and performance expectations, so always use the vessel manufacturer's horsepower rating as your starting point.

Mercury Outboards as Kicker Motors

A smaller Mercury outboard can serve as a kicker motor on compatible fishing and recreational boats. Kicker motors may be used for trolling, low-speed maneuvering, or auxiliary propulsion. Choose horsepower and shaft length based on the boat, mounting location, and intended application.

Mercury Outboards for Sailboats

A Mercury outboard for a sailboat can provide auxiliary propulsion for docking, maneuvering, and operating when wind conditions are unfavorable. Depending on vessel size and design, sailors may consider portable FourStroke or Avator electric outboards. Long-shaft configurations can be important for certain sailboat installations.

How to Choose a Mercury Outboard Motor

Choose the Right Horsepower

Start with the horsepower range specified by your boat manufacturer. Outboard horsepower affects acceleration, load-carrying ability, cruising performance, and overall boat handling. Avoid selecting a motor solely based on price or maximum speed; the engine must be appropriate for the boat's hull and rated capacity.

Choose the Correct Shaft Length

Proper outboard shaft length is essential to performance. Common portable outboard configurations include 15-inch short shafts and 20-inch long shafts, with other lengths available for certain applications. Measure the transom and follow the boat and engine manufacturer's recommendations when selecting shaft length.

Manual Start vs. Electric Start

Smaller Mercury outboards may offer manual pull starting, while other configurations provide electric starting or electric start with manual backup. Manual-start engines can simplify smaller installations, while electric start provides push-button convenience for compatible boats.

Manual Tilt vs. Power Trim & Tilt

Depending on the Mercury outboard model, available configurations can include manual tilt or power trim and tilt. Power trim and tilt can make it easier to adjust engine position for operating conditions, trailering, shallow water, and performance.

Tiller Steering vs. Remote Controls

Tiller-steered outboard motors allow the operator to steer and control the engine directly from the motor, making them common on dinghies, inflatables, jon boats, and other small craft. Larger or differently configured boats may use remote steering and controls when supported by the engine and vessel.

Gas vs. Electric Mercury Outboard Motors

Mercury FourStroke Gas Outboards

A Mercury FourStroke gasoline outboard can be a practical choice for boaters who prioritize extended operating range, quick refueling, and traditional outboard performance. Gas-powered Mercury motors are available across a wide range of horsepower ratings and configurations.

Mercury Avator Electric Outboards

Mercury Avator electric outboards offer quiet operation with no direct exhaust emissions during use and reduced routine engine maintenance compared with a gasoline outboard. Electric propulsion can be particularly appealing for small boats, tenders, protected waters, fishing, and boaters who value quiet operation.

Which Is Better for Your Boat?

The choice between a gasoline and electric outboard depends on how you boat. Consider required power, expected range, access to charging or fuel, boat weight, typical trip length, noise preferences, maintenance requirements, and available storage space before choosing a propulsion system.

Mercury Outboard Motor Maintenance

Routine Mercury outboard maintenance helps support dependable performance and long engine life. Maintenance requirements vary by model but can include engine oil and filter changes, lower unit gear lube service, fuel filter replacement, spark plug inspection, water pump service, anode inspection, lubrication, and corrosion protection.

Mercury FourStroke Maintenance

Follow the maintenance schedule for your specific Mercury FourStroke engine. Service intervals may be based on engine hours, elapsed time, or both. Engines frequently operated in saltwater or other demanding conditions may require additional cleaning and inspection.

Mercury Outboard Parts & Accessories

West Marine also carries Mercury outboard parts and accessories for compatible engines, including engine oil, gear lube, filters, water pump components, fuel-system parts, propeller hardware, maintenance products, and protective outboard covers.

Frequently Asked Questions About Mercury Outboard Motors

What Mercury outboard motors does West Marine sell?

West Marine sells a selection of Mercury FourStroke gasoline outboards and Mercury Avator electric outboard motors. Current gasoline offerings include portable Mercury outboards from 2.5HP through 25HP, with available configurations varying by horsepower, shaft length, starting system, and trim system.

What is the smallest Mercury outboard motor?

Among Mercury gasoline outboards currently available at West Marine, the Mercury 2.5HP FourStroke is a compact portable option designed for compatible small boats, tenders, dinghies, and inflatables.

Does Mercury make electric outboard motors?

Yes. Mercury Avator is Mercury Marine's electric propulsion family. West Marine carries select Avator electric outboards along with compatible batteries, chargers, bags, and accessories.

What size Mercury outboard do I need?

The correct Mercury outboard depends on your boat's manufacturer-rated horsepower range, transom height, hull design, weight, passenger and gear load, and intended use. Always stay within the horsepower and engine-weight limits specified by your boat manufacturer.

What shaft length Mercury outboard do I need?

Outboard shaft length should match your boat's transom and hull configuration. Portable Mercury outboards commonly include short- and long-shaft options, but the correct length depends on the boat. Measure the transom and follow the manufacturer's specifications before purchasing.

Is a 9.9HP Mercury outboard good for a dinghy?

A Mercury 9.9HP outboard can be appropriate for larger dinghies and inflatable boats that are rated to safely handle its horsepower and weight. Smaller dinghies may require significantly less horsepower. Always check the capacity plate or boat manufacturer's specifications.

What is EFI on a Mercury outboard?

EFI stands for electronic fuel injection. An EFI system electronically manages fuel delivery to the engine. Select Mercury portable FourStroke outboards, including available 9.9HP, 15HP, 20HP, and 25HP models, feature EFI.

Can I use a Mercury outboard in saltwater?

Mercury outboards can be used in appropriate saltwater applications. Follow Mercury's maintenance recommendations, including applicable freshwater flushing, corrosion protection, anode inspection, cleaning, lubrication, and scheduled service after saltwater operation.

How often should I service a Mercury outboard?

Service requirements vary by engine model and operating conditions. Follow the Mercury owner's manual for your specific outboard, including maintenance intervals based on engine hours and elapsed time.

Can a Mercury outboard be used as a trolling or kicker motor?

Yes. A properly sized Mercury portable outboard can be used as a kicker or auxiliary motor on compatible fishing and recreational boats. Horsepower, shaft length, mounting equipment, and controls should be selected for the vessel and intended use.

How do I choose between a Mercury FourStroke and Avator?

Choose based on your boat, trip length, desired range, power requirements, access to charging or gasoline, and preferred operating experience. Mercury FourStroke outboards offer traditional gasoline-powered range and fast refueling, while Mercury Avator provides quiet electric propulsion and reduced routine engine maintenance.

Shop Mercury Outboard Motors at West Marine

Shop Mercury Marine outboard motors at West Marine for dinghies, inflatable boats, tenders, fishing boats, jon boats, sailboats, and other recreational vessels. Find Mercury 2.5HP, 3.5HP, 4HP, 6HP, 9.9HP, 15HP, 20HP, and 25HP FourStroke outboards, plus Mercury Avator electric outboard motors, batteries, chargers, accessories, and protective covers. Whether you're repowering a small boat, choosing an outboard for a tender, or making the move to electric propulsion, find a Mercury outboard for your next adventure at West Marine.