- Stock #330137 - 2021 SEA-DOO GTX 170. Ready for endless recreation. 2021 Sea-Doo GTX 170, Beach Blue metallic and Lave Gray, located in Rio Vista, Texas. This 2021 Sea-Doo is powered by an efficient 170 HP engine with a Rotax engine. This is one of the most powerful naturally aspirated engines ever on a Sea-Doo. The GTX 170 is known for its handling and performance. The ST3 hull sets the benchmark for rough water stability. Other features include the largest swim platform in the industry, iDF Intelligent Debris Free Pump, large front access storage, and a single axle trailer. Please s... read more