Mercury 90ELPT 90HP Command Thrust 4-Stroke 20″ Outboard Motor

Mercury 90HP 90ELPT Command Thrust Long Power

Technology focused and utilizing a 2.1L four-cylinder engine family, the Mercury 90HP 90ELPT serves as a high-torque solution for US boaters requiring a prop-rated propulsion unit with superior thermal stability. This 90HP four-stroke technology utilizes a Command Thrust (CT) gearcase architecture to maximize mechanical efficiency and displacement for heavy pontoons and aluminum fishing boats. The 20-inch long shaft design provides an optimized center of gravity, while the Electronic Fuel Injection (EFI) and electric start ensure immediate, reliable ignition across diverse inland and coastal environments.

Operational longevity of the 90ELPT model is secured through a specialized water-cooled system featuring a heavy-duty gearcase to maintain internal cleanliness under constant load. To facilitate easy after-storage starts, the unit employs a sophisticated EFI system paired with a 35A high-output alternator for onboard electronics, while the Mercury XK360 alloy science utilizes a multi-layer finish to mitigate oxidation. With a 3-year/300-hour service interval and class-leading displacement, this high-performance outboard provides superior ownership value for boaters seeking high-thrust capability and low operating costs.

Key Features of Mercury 90ELPT FourStroke

• 2.1L Inline 4-Cylinder 8-Valve SOHC Block
• 90.0HP Prop-Rated Output at 5500 RPM
• 20″ Long Shaft / 359 lbs Dry Weight Chassis
• Electronic Fuel Injection (EFI) Induction System
• Remote Steering with Command Thrust (CT) Gearcase
• Digital Inductive Ignition with 35A Alternator
• 2.38:1 Gear Ratio / 5.5qt Oil Capacity