Mercury 5 HP FourStroke 2026: The Current True Five
The 2026 Mercury 5 HP FourStroke is the newest build of Mercury’s big-block five: a large 123cc single delivering best-in-class true 5HP with quick acceleration, quiet through-prop exhaust, no-spill oil changes, a maintenance-free valve train, advanced tiller, and the Sail Power option. The current benchmark of the 5HP outboard class.
Key Features (2026)
- 123cc single — true 5HP
- No-spill oil change; maintenance-free valve train
- Sail Power option; advanced tiller
Specifications
- Engine: 1-cylinder four stroke, 123cc
- Horsepower: 5 HP
- Starting: Manual
- Steering: Tiller
- Fuel: Internal/external tank options, 87 octane
- Shaft: 15″ (S) / 20″ (L)
Benefits & Applications
Current-year big-block ease for aluminum tiller boats, inflatables, jons, and sailboats. Rivals: Suzuki DF5A 2026, Honda BF5 2026. Top tune: Mercury 6 HP 2026.
Compare Model Years
Save with the 5 HP 2024 or 5 HP 2025, all Mercury Outboards, or the Mercury brand guide.
Frequently Asked Questions
How much is the 2026 model?
$1,970, in stock.
Why Mercury at 5HP?
Best-in-class power from class-leading displacement, plus the lowest-maintenance design in the segment.
Best boats?
Aluminum tiller boats, inflatables, jon/utility boats, and sailboats.



