2026 Harris Grand Mariner 230

The 2026 Harris Grand Mariner 230 is a 25-foot tritoon powered by a single Mercury Verado 350-horsepower engine. The hull features Harris's RPM Chassis with a 325-tube design: the center pontoon measures 27 inches with outer pontoons at 25 inches. All pontoons are .090-gauge aluminum with large lifting strakes and reinforced nose cones. The structure uses full extruded aluminum M-brackets—six in total across all three pontoons—and the transom is solid aluminum rather than wood-filled.

The single-lounger dual-helm floor plan centers on raised helm seating with dual UltraLux high-back chairs upholstered in Luxe Caviar over a woven teak floor in Stone Gray. The helm is equipped with dual Simrad NSX 9-inch touchscreen depth finders and chartplotters with sonar and Vessel View integration. Power-assisted steering and digital throttle and shift with auto trim manage operation. A four-blade stainless steel propeller and dual AGM batteries with a charging system support performance and longevity.

Onboard amenities include a JL Audio diamond sound system with eight lighted speakers, amplifiers, and a subwoofer. Lighting options span CZone LED RGB systems integrated at seat bases, the underdeck, and underwater, plus lighted cup holders and integrated docking lights with LED flood and spot functions. Additional features include a stainless steel ski tow bar, LillyPad swim ladder, two wireless phone charging pads, ski floor storage, and a 50-gallon fuel tank.

The boat comes with a tandem-axle trailer fitted with disc brakes, swing tongue, heavy-duty jack stand, and poly bunk covers. Black powder-coated fence rails, quick-release fender system, flip-up cleats, and a full EZ-clip mooring cover complete the package.