Mercury 115 EXLPT Command Thrust FourStroke

This used Mercury 115 EXLPT Command Thrust FourStroke is an inline four-cylinder, 2.1-liter EFI outboard on a 25-inch shaft with a Command Thrust gearcase, built for pushing a heavier boat or a loaded bass or pontoon rig rather than chasing top speed.

What Command Thrust changes

The Command Thrust gearcase pairs a larger housing with a bigger-diameter, higher-pitch-range propeller than a standard gearcase, giving better bite in reverse and under load at some cost to peak rpm; full throttle on this engine runs 5000-5800 rpm. The gearcase ratio here is 2.07:1, and the CARB star rating is 3.

Specifications to check before buying

Steering is remote with dual-cable mechanical control, backed by hydraulic power steering, with an electro-hydraulic upgrade available on duals or with an advanced tiller fitted separately. It runs a single overhead cam, 8-valve inline four, fed by multi-port electronic fuel injection, with Smart Start electric starting and SmartCraft Engine Guardian monitoring, and comes in at 363 pounds dry. A propeller is not included; the finish is Phantom Black.

Does a propeller come with this engine? No, propellers are sold separately. What is the shaft length? 25 inches, meant for a standard-to-tall transom common on boats this size.

Since this is a used outboard, confirm logged hours and any service history with us directly, and ask about a water test before committing to the purchase.