Overview

The Mercury 90 SeaPro Command Thrust is a commercial-grade four-stroke built on Mercury's 2,064 cc (2.1 L) inline-four with an eight-valve SOHC head and multi-port electronic fuel injection. The SeaPro tune and Command Thrust gearcase pair a larger-diameter lower unit and lower 2.33:1 gearing with a bigger prop for heavy-load hole-shot, running to a 5,000-5,500 rpm wide-open range. This 2021 example has only about 37 hours and is a 20-inch long-shaft with power trim and tilt, electric start and remote controls. The 2.1-liter four is heavier-duty than the class norm, engineered for the long hours and full loads of work boats, guide rigs, pontoons and heavy aluminum hulls. It runs and cools perfectly and is delivered complete with remote control, cables and gauge. Inspected and sold with a clean bill of sale; freight-delivered.