$1,710.00
The 2025 Mercury 4 HP FourStroke: large 123cc single, no-spill oil change, maintenance-free valve train, advanced tiller. In stock and ready to ship.
Mercury 4 HP FourStroke 2025: Low Effort, Low Maintenance
The 2025 Mercury 4 HP FourStroke continues the 123cc single’s easy-power formula with Mercury’s ownership-friendly touches: no-spill oil change system, easy-out fuel filter, lifetime maintenance-free valve train, and an advanced tiller with easy-reach controls. Quick to accelerate, quiet through-prop exhaust, simple to install — a standout in the small horsepower class.
Key Features (2025)
- Large 123cc single
- No-spill oil change; maintenance-free valve train
- Advanced tiller; through-prop exhaust
Specifications
- Engine: 1-cylinder four stroke, 123cc
- Horsepower: 4 HP
- Starting: Manual
- Steering: Tiller
- Fuel: Internal/external tank options, 87 octane
- Shaft: 15″ (S) / 20″ (L)
Benefits & Applications
For aluminum tiller boats, inflatables, jons, utility boats, and sailboats. Rivals: Yamaha F4 2025, Honda BF4 2025. More power: Mercury 5 HP 2025.
Compare Model Years
See the 4 HP 2024 and 4 HP 2026, all Mercury Outboards, or the Mercury brand guide.
Frequently Asked Questions
What does the 2025 model cost?
$1,710, in stock.
Why the 123cc block?
Big displacement makes rated power easily — less strain, less noise, longer life.
Shaft options?
15″ and 20″.
| Brand | Mercury |
|---|---|
| Model | FourStroke 4 HP |
| Model Year | 2025 |
| Horsepower | 4 HP |
| Engine Type | 1-Cylinder Four Stroke, 123cc |
| Starting System | Manual |
| Shaft Length | 15" (S) / 20" (L) |
| Steering | Tiller |
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