Sea-Doo RXT-X PWC For Sale

The Sea-Doo RXT-X is a full-size performance personal watercraft built on Sea-Doo's ST3 platform, the same stepped hull and top deck shared with the Fish Pro, Explorer Pro and GTX series. That larger hull gives it a more comfortable seating area, a bigger rear deck and genuine bow storage, which sets it apart from the smaller, race-bred RXP-X that uses a more compact deck. It seats three with a passenger capacity up to 600 pounds, yet it stays aimed squarely at riders who want top-tier acceleration without the twitchier handling of a dedicated racing ski. Overall length runs 135.9 inches, width 49.4 inches and height 45.3 inches, with a dry weight around 828 pounds on the 300-horsepower model.

Power comes from a supercharged 1630cc three-cylinder Rotax engine. Earlier RXT-X models made 300 horsepower and quoted a 0-to-60-mph time of 3.8 seconds; the engine received a boost to 325 horsepower in 2024, the most powerful engine offered by the three major jet ski brands, ahead of supercharged Kawasaki models at 310 horsepower and Yamaha WaveRunners estimated near 280. The supercharger generates roughly 30% more boost than the prior generation and feeds a redesigned intercooler with about 120% more cooling capacity, with the strongest gains felt in mid-range roll-on from 35 to 40 mph. The engine requires 91-octane fuel to make full output. US versions carry a speed limiter set to about 70 mph to meet Coast Guard requirements, while the RS specification sold in Australia tops out just shy of 75 mph; testing recorded an average top speed of 72.9 mph with one run reaching 73.4 mph.

The helm centers on a digital display, a roughly 7-inch unit on earlier models that grows to a 10.25-inch touchscreen for 2026, the largest in the segment. New handlebar toggle switches put launch control, sport mode and cruise control within fingertip reach, and pairing a smartphone through the BRP Go app brings navigation maps and music streaming. Launch control automatically trims the nose down on takeoff and lifts it as speed builds, and the ski offers sport, touring and eco modes through its throttle-by-wire system. An industry-first adjustable steering damper lets riders dial the steering heavier or lighter, a feature Sea-Doo added partly because the RXT-X can turn sharper than many riders expect. The iBR braking and reverse system uses a two-lever control for pinpoint docking and strong deceleration without burying the bow.

Storage is one of the platform's strongest points. Releasing two tabs lifts the center console lid and handlebars as a single unit, so a rider can reach into the bow compartment from a seated position rather than leaning over the front. The console houses a waterproof glove box with foam padding and a USB charge port, recesses with rubber straps for a fire extinguisher and emergency beacon, and the fuel filler positioned up high for easier dockside refueling. The bow storage carries a 30-pound weight limit and includes mesh pockets for water bottles or sunscreen. At the rear, the LinQ accessory system clips on a fuel caddy or cooler, the rear deck doubles as a swim platform, and a rear boarding rail comes standard. Ergonomics include the narrow Ergolock seat that flares to grip the legs, soft knee pads, angled footrests, adjustable handlebars that tilt with the display, and a rider-aimed premium BRP audio system.

The stepped S3 hull combines high-speed stability with nimble handling, and aggressive X sponsons help the ski carve tight turns. In calm rivers and lakes it stays composed and predictable, but the concave bow that keeps spray down also tends to hop in cross chop as the fuel load lightens, a trait worth weighing for buyers who ride open or ocean water. The scoop grate directing water into the impeller sharpens launch but can draw more debris, and Sea-Doo's reverse-thrust debris removal is not offered on the RXT-X. Fuel capacity is 70 liters, or 18.5 US gallons. Buyers should also confirm warranty terms, since US units carry a one-year warranty while Australian skis came with two years at the time of release, plus check trailer and registration costs, which are quoted separately from the ski price.