2018 Sea-Doo GTX Limited 300


The 1st watercraft to hang out on water with the largest swim platform in the industry and a removable seat allowing to lounge or enjoy a picnic. Plus, a bluetooth audio system and the possibility of extra cargo, like a cooler. The new standard for watercraft luxury.


  • YOUR SEA-DOO ESSENTIAL LIMITED PACKAGE: Gives you a ton of exclusive extras like a watercraft cover, USB port, removable dry bag, safety kit and exclusive coloration. Plus a depth finder, water temperature gauge, high-performance VTS, and more.
  • MODULAR ERGOLOCK SEAT: The narrow seat places your knees closer together in a natural riding position, while the stepped seat design provides more lateral support and stability for you and your passengers. Plus, the removable rear seat gives you even more space for hanging out, sunbathing or a face-to-face picnic.
  • LARGE SWIM PLATFORM: The first watercraft to hang out on the water with the largest swim platform in the industry. Flat, stable and comfortable, it is ideal for re-boarding, lounging, and prepping for tow sports. Create even more space by removing the rear seat.
  • ST³ HULL: Whether you’re at high speeds pounding rough offshore waters, at rest hanging out in a cove or you’re simply boarding from the side, the wider hull offers industry leading stability thanks to a lower center of gravity and improved hull design.
  • DIRECT ACCESS FRONT STORAGE: All your gear is now within arm’s reach. The industry’s first direct-access front storage opens by simply raising the handlebar assembly. No standing required. It's the smartest water-resistant storage we've ever built into a watercraft, offering room for your next adventure.
  • REAR CARGO LINQ SYSTEM: Extra rear storage is now possible with the secure Quick-Attach LinQ System. It allows to easily snap a fuel caddy and a bag, or a cooler, to the back of your watercraft using two convenient, integrated attachment points.
  • BLUETOOTH AUDIO SYSTEM: The industry's first fully-integrated waterproof Audio System will keep the fun going anywhere you go, with 100 watts of total system power, fully-waterproof performance, Bluetooth connectivity, and external playback controls to ensure the perfect song is always on deck.
  • WATERTIGHT PHONE BOX: A watertight compartment with integrated USB port* allowing your devices, including phones or action cameras, to stay charged and ready to go—snug in an impact-absorbing, watertight cradle.
  • TOURING FEATURES: Spend all day touring with these standard features: a large, front storage bin accessible from your seat. Tilt steering, slow-mode cruise control and a re-boarding ladder for pure comfort.
  • 2 ENGINE OPTIONS: Choose between two powerful engines both equipped with the Advanced Combustion Efficiency technology. The 230-hp Rotax 1500 HO ACE or the pulse-pounding 300-hp Rotax 1630 ACE for better acceleration.
  • INTELLIGENT BRAKE AND REVERSE (iBR): Recognized by the U.S. Coast Guard for improving boat safety since 2009 and now in its third generation, the Sea-Doo exclusive iBR (Intelligent Brake and Reverse) system allows you to stop up to 160 feet (48 m)* sooner than watercraft not using a brake. With both hands on the handlebars, riders can engage forward, neutral, and reverse for stable, worry-free maneuvering at low speeds.* Based on BRP internal testing.
  • INTELLIGENT THROTTLE CONTROL: Choose how you want your power delivered thanks to different riding modes such as Touring, Sport, and ECO - available through your watercraft digital information center.
  • CLOSED-LOOP COOLING SYSTEM: This technology prevents corrosive saltwater and damaging debris from entering the engine, for increased reliability and peace of mind.
  • iCONTROL: The “Brain” that integrates and controls all systems to create the best possible ride.
  • TOURING MODE / SPORT MODE: Offers a choice between two throttle responses for different riding styles. Touring mode is the default setting offering a more progressive acceleration curve for a more confident ride – ideal for cruising and 2-up riding. Sport mode can be easily activated using the Sport button. It provides all acceleration performance for a more aggressive throttle response.
  • ECO MODE: This iTC function automatically determines the most economical power delivery and sets the optimal RPM for greatest fuel economy.
  • RF D.E.S.S.™ KEY: With radio frequency technology and a ball-and-socket design, the Digitally Encoded Security System (D.E.S.S.) key provides riders with easy and quick starts every time.
  • INTERACTIVE MULTIFUNCTION DIGITAL INFORMATION CENTER: Cruise control, Slow mode, VTS, Fuel level, Tachometer, Speedometer, Hour meter, Compass, Clock, Touring mode, Sport mode, ECO mode, F-N-R indicator and more.
  • REBOARDING LADDER: Now deeper and wider, it makes reboarding from the water easier and quicker
  • iCONTROL® LEARNING KEY®: The programmable Learning Key allows you to limit the performance of the PWC based on rider skill-level.
  • D-SEA-BEL™ SYSTEM: Combines a series of resonators and vibration absorbing components to make Sea-Doo watercraft some of the quietest on the water.
  • INTERACTIVE MULTIFUNCTION DIGITAL INFORMATION CENTER: Cruise control, slow mode, VTS™, fuel level, tachometer, speedometer, hour meter, compass, clock, touring mode, port mode, eco® mode, F-N-R, indicator and more.
  • STAINLESS STEEL IMPELLER: Delivers improved acceleration, higher top speed and less cavitation.
  • OTHER: Handlegrips with palm rest, footwell carpets, sponsons, swim platform carpet with Sea-Doo® logo, bumpers, reboarding handle on rear platform, wide-angle mirrors, seat strap, split seat (2 parts), quick latch fuel filler design, integrated cleats, dual drain plugs, luxury front grill, flush kit, large swim platform, emergency floating lanyard, ski tow eye, tilt steering, operator’s guide, instructional video and booklet.

General Information

Manufacturer Sea-Doo
Model Year 2018
Model GTX Limited 300
Model Code 45HA
Color Liquid Grey Metallic / Equestrian Brown


Hull Material Composite
Hull Type Deep Vee
Storage 42.8 US gal. (162 l)


Length Bumper to bumper - 135.9 in. (345.1 cm)
Width 49.4 in. (125.5 cm)
Weight Dry - 847 lb. (385 kg)


Impeller Stainless steel


Exhaust D-SEA-BEL™ System
Fuel Type 91 octane recommended
Cooling Closed-Loop Cooling System (CLCS)
Engine Rotax® 1630 ACE™
Displacement 1,630 cc
Fuel Capacity 15.9 US gal. (60 l)
Starter Electric
Fuel System Supercharged with external intercooler


Weight Capacity 600 lb. (272 kg)
Seating 3 person capacity


Warranty BRP limited warranty covers the watercraft for one year.