2026 Sea-Doo GTX 300

The 2026 Sea-Doo GTX 300 is a three-passenger touring jet ski built around a 300 hp Rotax 1630 ACE supercharged engine. The ST3 fiberglass hull is designed for stability and confident handling in open water. The jet ski measures 11.33 feet long and weighs approximately 807 pounds dry.

This GTX 300 comes equipped with iBR intelligent Brake and Reverse for easier docking and low-speed maneuvering, plus iDF intelligent Debris Free pump technology to clear debris from the intake area. The Tech Package adds a 7.8-inch color display with ride data, factory-installed Bluetooth audio for music on the water, and LinQ accessory attachment points on the large swim platform.

The three-seat layout offers generous storage with 26.1 gallons of total capacity and direct-access front storage. The fuel tank holds 18.5 gallons. The touring-focused seat design supports longer rides, and a tow hook enables watersports use. Throttle control is electronically managed, and cooling is handled through a closed-loop system.