2025 Mercury FourStroke 9.9hp EFI
$3,080.00
Wallace Marine | Great Falls, Montana
Discover the power and versatility of the 2025 Mercury Marine FourStroke 9.9hp EFI. This lightweight, compact outboard is engineered to give you complete freedom on water adventures.
Engineered for Exploration
The new 9.9 horsepower four‑stroke engine unlocks remote destinations that other engines can’t reach. Whether you’re cruising a lake or ...
[read more]Discover the power and versatility of the 2025 Mercury Marine FourStroke 9.9hp EFI. This lightweight, compact outboard is engineered to give you complete freedom on water adventures.
Engineered for Exploration
The new 9.9 horsepower four‑stroke engine unlocks remote destinations that other engines can’t reach. Whether you’re cruising a lake or tackling a river run, the Mercury FourStroke delivers quick acceleration and impressive speed while remaining reliable under any conditions.
Advanced Electronic Fuel Injection
The built‑in EFI system responds instantly from crank to throttle, ensuring smooth, efficient power delivery in all weather. Enjoy confident starts without a battery—manual start models use battery‑free EFI for ultimate portability.
User‑Friendly Maintenance
- No‑spill oil change design keeps maintenance clean and simple.
- Easy‑out fuel filter removes the hassle of refueling.
- Lifelong, maintenance‑free valve train guarantees long‑term reliability.
The Mercury tiller handle offers adjustable settings and is available in left- or right-handed configurations on select models. Reachable controls give you full command of your watercraft with minimal effort.
Portable Powerhouse
With a dry weight as low as 85 lbs (38.5 kg) for the lightest model, this outboard is simple to install and carry wherever adventure calls.
Key Product Details
- Year: 2025
- Make & Model: Mercury Marine FourStroke 9.9hp EFI
- Color: Black
- Engine Type: Gasoline, four‑stroke
- Horsepower: 9.9 hp
- Fuel Capacity: Standard gasoline tank (capacity varies by model)
- Weight: Lightest version weighs 85 lbs; standard models up to 100 lbs.
- Status: New, available for immediate delivery
- Location: Great Falls, Montana (for reference)
Experience the perfect blend of power, efficiency, and ease with the Mercury Marine FourStroke. Let this outboard be your gateway to unforgettable water adventures.
| Sale Price | $3,080.00 | |
| Location | Great Falls, Montana | |
| Condition | New | |
| Stock Number | 25M29 | |
| Year | 2025 | |
| Make | Mercury Marine® | |
| Model | FourStroke 9.9hp EFI | |
| Color | BLACK | |
| Engine | MERCURY | |
| Horsepower | 9.9 | |
| Fuel Type | Gas | |
| Dry Weight | Lightest model available: 85 lbs (38.5 kg) / 100 lbs (45.5 kg) (CT Model) | |
| Status | Available |
| Engine Power | 9.9 |
Mercury FourStroke outboards are made to unlock the inaccessible. To make light work of long journeys. The 2.5 to 20hp FourStroke outboards empower you to enjoy the water on your terms and reach places you wouldn’t dare venture with other engines. They’re reliable, compact, lightweight, easy to install and simple to operate, while still delivering quick acceleration and impressive speed. The only thing missing is a destination.
Features may include:
Electronic Fuel Injection (EFI)
From the moment you crank the engine to the moment you drop the throttle, EFI technology (on 8 to 20hp outboards) responds with instant power. Surefire starting in all weather conditions. Smooth, efficient acceleration. Maximum fun.Battery-Free EFI
Go farther confidently with battery-free EFI technology, included with manual-start 8 to 20hp outboards. It lets you enjoy the flexibility of portability, without needing to bring along a cranking Maintenance
We made maintenance easier with features like a no-spill oil change system, easy-out fuel filter and lifetime maintenance-free valve trainAdvanced Tiller
With a range of adjustments, easy-to-reach controls and the flexibility to be set up for left- or right-handed operation (on select models), Mercury tiller handles put you in complete command of your Portability
Simple to install and lightweight, 2.5 to 20hp FourStroke outboards let you bring along the fun wherever it’s needed.
Estimate Payments
Payment calculations are just estimates. Rates and terms vary day to day. Not an agreement, informational purposes only. Contact dealer for current rates, terms, and payment plans, etc.
Advertised pricing excludes applicable taxes title and licensing and are subject to change without notice. Pricing may exclude any added parts, accessories or installation unless otherwise noted. Sale prices include all applicable offers. Not all options listed available on pre-owned models. Contact dealer for details.
