The 2025 Sea-Doo RXT-X 325 represents the absolute pinnacle of high-performance personal watercraft design. Powered by the groundbreaking 325-horsepower Rotax 1630 ACE supercharged engine, this brand-new model delivers unprecedented acceleration, launching from 0 to 60 mph in under 3.4 seconds.
Built upon Sea-Doo’s flagship ST3 Hull, the 2025 Sea-Doo RXT-X 325 combines extreme rough-water stability, race-inspired Ergolock seating, and cutting-edge helm electronics to give offshore riders total control at peak speeds.
Complete Technical Specifications
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Model Year: 2025
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Condition: Brand New / Zero Hours
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Engine Type: Rotax 1630 ACE™, 3-Cylinder, 4-Stroke
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Displacement: 1630 cc
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Horsepower: 325 HP
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Induction: Supercharged with External Intercooler
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Cooling System: Closed-Loop Cooling System (CLCS)
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Reverse System: Electronic iBR® (Intelligent Brake & Reverse)
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Fuel Type: Premium Unleaded (91+ Octane Recommended)
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Length: 135.9 in. (345.1 cm)
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Width: 49.4 in. (125.5 cm)
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Dry Weight: Approx. 844 lbs (383 kg)
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Fuel Tank Capacity: 18.5 gal (70 L)
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Storage Capacity: 26.1 gal (98.9 L) Direct-Access Front Storage
Key Performance Features of the 2025 Sea-Doo RXT-X 325
325HP Supercharged Rotax 1630 ACE Engine
The core of the 2025 Sea-Doo RXT-X 325 is the re-engineered Rotax 1630 ACE block. Featuring a redesigned supercharger, upgraded fuel delivery, and advanced thermal management, this powerplant generates an unmatched 325 horsepower, pushing high-output PWC performance to new heights.
Hydraulic Steering Damper & Racing Ergonomics
Designed to eliminate feedback through the handlebars during high-speed chop, the adjustable hydraulic steering damper lets riders fine-tune steering resistance. Paired with sticky knee wedges, deep wrist supports, and the ErgoLock™ R narrow seat, riders stay locked into position during hard cornering.
Launch Control & iBR System
Achieve optimal hole-shot acceleration every time with the handlebar-activated Launch Control system, which automatically adjusts variable trim (VTS) to keep the bow down. The 3rd Generation iBR (Intelligent Brake & Reverse) ensures rapid stopping distances and precise docking control.
ST3 Hull Design & Rough-Water Dominance
The revolutionary ST3 Hull™ features an ultra-wide beam and deep-V entry that carves through rough ocean swell with complete stability.
Whether idling at rest or running wide-open across open water, the low center of gravity and stepped hull design prevent bow-steering and reduce drag, ensuring predictable tracking in demanding offshore conditions.
Closed-Loop Cooling System & Advanced Engineering
Engineered for longevity in harsh marine environments, the 2025 Sea-Doo RXT-X 325 utilizes Sea-Doo’s proven Closed-Loop Cooling System (CLCS).
Instead of drawing corrosive salt water or debris through the internal engine block, CLCS uses clean coolant circulating through a sealed ride-plate radiator. This eliminates internal engine corrosion and ensures consistent operating temperatures under heavy thermal load.
Service, Rigging & Safety Guidelines
Maintaining ultra-high-performance craft demands proper break-in procedures and post-ride care to preserve factory warranties and peak mechanical output.
According to independent research on marine corrosion mechanics from the Association for Materials Protection and Performance (AMPP), systematic freshwater flushing of jet drive housings and active sacrificial anode maintenance prevent localized galvanic degradation on exposed marine alloys. Furthermore, environmental protection standards from the U.S. Environmental Protection Agency (EPA) stress the importance of maintaining sealed fuel injection loops and monitoring bilge spaces to keep coastal waters free from hydrocarbon contaminants.
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Have questions about factory warranty coverage, shipping crates, or trailer fitment? Visit our FAQs or contact us directly on our Contact Page.
Frequently Asked Questions (FAQ)
What is the top speed of the brand-new 2025 Sea-Doo RXT-X 325?
In compliance with US Coast Guard guidelines, the factory top speed is electronically limited to 67–69 mph (108–111 km/h). Under optimal conditions, its 325HP engine achieves this speed almost instantaneously.
What warranty comes with a brand-new 2025 RXT-X 325?
As a brand-new unit, this watercraft includes the full BRP factory limited warranty coverage, with extended protection service plans available at the time of purchase.
What fuel is required for the 325HP Rotax engine?
Because this model utilizes a high-output supercharged engine, BRP requires running high-octane premium unleaded gasoline (minimum 91 Octane) for peak performance and engine safety.
What makes the ST3 Hull different from other jet ski hulls?
The ST3 Hull is engineered specifically for offshore rough water. It features a wide platform for lateral stability, step hull aeration to reduce drag, and deep-V keel tracking that cuts through ocean chop without bow-steering.
Does the 2025 RXT-X 325 include a sound system?
Yes, most RXT-X 325 packages come equipped with the factory-installed 100-watt BRP Audio-Premium System, featuring Bluetooth connectivity and fully integrated handlebar controls.
Product Disclaimer
All product specifications, performance claims, speed metrics, and features regarding the brand-new 2025 Sea-Doo RXT-X 325 are provided for purchasing and informational reference only. Engine performance and speed may vary based on payload, weather, water conditions, and altitude. Always operate responsibly, wear a Coast Guard-approved PFD, and comply with all federal and local boating safety regulations.
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