2026 Sea-Doo GTI

The 2026 Sea-Doo GTI is an 11-foot personal watercraft built around a single-engine design. Powered by a 1630cc in-line four-stroke engine with liquid cooling and electric starting, it delivers direct-drive performance through an axial-flow pump. The jet ski seats three riders and carries 18.5 gallons of fuel, with an additional 40.3 gallons of on-board storage capacity.

The GTI features a modified V hull, standard instrumentation including speedometer and tachometer, and mirrors. It weighs 741 pounds dry and measures 49.2 inches wide and 44.9 inches tall, making it compact and maneuverable on the water.

The engine displaces 99.4 cubic inches with a bore of 3.94 inches and stroke of 2.72 inches, operating at an 8.45:1 compression ratio. It starts electronically and runs on gasoline.