The Mercury 25hp EFI (25EPT) is the pinnacle of mid-range portable outboards, combining the ease of Electric Start with the precision of Power Trim & Tilt. Built on a powerful 500cc 3-cylinder platform, this engine utilizes Electronic Fuel Injection (EFI) to deliver turnkey starting, instant throttle response, and superior fuel economy. With its 15-inch short shaft, the 25EPT is the perfect high-performance upgrade for aluminum fishing boats, soft-bottom inflatables, and shallow-water skiffs.
Technical Specifications
| Model Number / MPN |
25EPT |
| Horsepower |
25 HP (18.6 kW) |
| Shaft Length |
15 Inches (Short Shaft) |
| Engine Type |
Inline 3-Cylinder / 4-Stroke SOHC |
| Displacement |
500 cc (30.5 cubic inches) |
| Starting System |
Electric Start (with Manual Backup) |
| Trim & Tilt System |
Power Trim and Power Tilt |
| Dry Weight |
Approx. 141 lbs (64 kg) |
Refined Technology, Effortless Control
- Battery-Free EFI Capability: Turn-key starts every time. The EFI system ensures smooth idling and smoke-free operation across all altitudes.
- Power Trim & Tilt: Allows you to adjust the engine angle on the fly for better hole shots, improved top speed, and safe navigation in shallow flats.
- Balanced 3-Cylinder Design: Provides a quieter and smoother ride with significantly less vibration than comparable 2-cylinder models.
- High-Output Alternator: A 17-Amp (210 Watt) charging system keeps your batteries topped up to power livewells, fishfinders, and lights.
- Advanced Corrosion Protection: Built with Mercury's 4-Front Corrosion system, featuring low-copper alloys and stainless steel components for saltwater durability.
The Benchmark for Short-Transom Performance
The Mercury 25EPT is designed for boaters who want the luxury of a large engine in a compact footprint. Its high-displacement powerhead provides exceptional torque for getting heavy loads on plane quickly. Unlike basic pull-start models, the 25EPT offers the ultimate convenience of electric starting and hydraulic trim control. Whether you're navigating inland lakes or coastal estuaries, this 25hp EFI delivers the reliable, low-maintenance performance that professional anglers and recreational boaters depend on.
Frequently Asked Questions
1. Is this a tiller or remote model?
The 25EPT is a "Remote Control" model, meaning it is designed to be operated via a steering wheel and console-mounted shift/throttle box (sold separately).
2. Can I still start it if the battery fails?
Yes. This model is equipped with a manual recoil starter as a secondary backup, allowing for battery-free emergency starts thanks to the EFI technology.
Marine Equipment Specialist | Genuine Provider | Genuine Mercury Parts & Accessories
