Mercury 90hp EFI Outboard 90EXLPT
$6,323.00
The Mercury 90hp EFI Outboard 90EXLPT is a high-displacement FourStroke engine with a 25-inch extra-long shaft, designed for boats with deeper transoms. It delivers fast acceleration, excellent throttle response, and efficient cruising power.
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Overview Mercury 90hp EFI Outboard 90EXLPT
The Mercury 90hp EFI Outboard 90EXLPT is a four-stroke outboard engineered for boats that require a 25-inch extra-long shaft. Built with high displacement and lightweight design, it produces abundant torque for quick planing, smooth acceleration, and excellent fuel efficiency at cruising speeds.
Features and Performance
- High-Displacement 2.1L Inline 4 Engine – Delivers strong torque and responsive midrange power
- Electronic Fuel Injection (EFI) – Smooth starting, precise throttle control, and optimized fuel efficiency
- FourStroke Technology – Quiet operation with reduced vibration and long-term durability
- Maintenance-Free Valvetrain – Proven design shared with larger Mercury FourStroke engines
- Smart Start Electric Starting – Effortless and reliable starts
- High-Output Alternator (35 Amp) – Supports modern electronics with a water-cooled voltage regulator
- Power Trim & Tilt – Easy performance tuning, docking, and shallow-water handling
These features combine to deliver confident acceleration, stable cruising, and dependable performance for demanding boat setups.
Why You Should Buy it
- Designed for boats with deeper 25-inch transoms
- Strong torque and fast planing performance
- Fuel-efficient EFI technology lowers operating costs
- Smooth, quiet FourStroke operation
- Backed by a Mercury Marine 3-year factory warranty
This outboard is an excellent choice for boaters who need extra shaft length without sacrificing performance or efficiency.
| Specification | Details |
|---|---|
| Engine Type | Inline 4 Four-Stroke |
| Horsepower | 90 HP |
| Model | 90EXLPT |
| Fuel System | Electronic Fuel Injection (EFI) |
| Displacement | 2.1 L |
| Cylinders | 4 |
| Shaft Length | 25" (Extra-Long) |
| Steering | Remote Mechanical |
| Starting System | Smart Start Electric |
| Full Throttle Range | 5000 – 6000 RPM |
| Alternator Output | 35 Amp / 441 Watt (Water-Cooled) |
| Weight | 381 lbs |
| Warranty | Mercury Marine 3-Year Warranty |
- Mercury 90hp EFI Outboard 90EXLPT
- Power Trim & Tilt
- Stop switch lanyard
- Service tool kit & parts
- Owner’s manual
Frequently Asked Questions About Mercury 90hp EFI Outboard 90EXLPT
Where does the Mercury 90hp EFI Outboard 90EXLPT fit in a boating setup?
The Mercury 90hp EFI Outboard 90EXLPT is built for boats with deeper transoms. The row highlights 90 hp, Inline 4 Four-Stroke, remote mechanical, and a 25" (Extra-Long) shaft for a clearly defined operating setup.
What are the key powertrain details of this engine?
This outboard is listed with 90 HP, and Inline 4 Four-Stroke. The specification row adds 2.1 L of displacement and electronic fuel injection (efi) fuel delivery, which helps buyers compare how this motor is set up for smooth, straightforward operation.
How is this motor set up for steering and operation?
This model is listed with a 25" (Extra-Long) shaft, Remote Mechanical steering, and Smart Start Electric starting. Those details matter because alternator output is listed at 35 Amp / 441 Watt (Water-Cooled), helping buyers judge transom fit, helm style, and everyday operating convenience.
Where does this outboard make the most sense onboard?
This outboard is aimed at boat setups that match its listed control and shaft arrangement. The row points to boats with deeper transoms and highlights a 25" (Extra-Long) shaft, helping buyers narrow it to the right helm and transom layout.

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