Discover the 2026 Harris Grand Mariner 250 SL: The Ultimate Luxury Pontoon Experience

Experience unparalleled performance and opulent comfort aboard the magnificent 2026 Harris Grand Mariner 250 SL. This premium triptoon model redefines luxury boating, combining cutting-edge technology with raw power. Engineered for discerning boat owners who demand the best on the water, this specific Harris pontoon delivers an ultra-smooth ride and breathtaking style.

Exceptional Performance Powered by Mercury Verado V10

At the heart of this impressive Harris Grand Mariner is a robust engine package designed for maximum efficiency. The boat is powered by a powerful 425HP Mercury Verado V10 outboard, providing reliable thrust and exhilarating cruising capability. This high-output motor works seamlessly with Harris’s premium three-tube, 27” performance chassis.

The specialized structure of the 3-Tube Performance Chassis includes advanced lifting strakes that ensure superior stability and handling in various water conditions. Combined with Mercury's DTS controls and power assist steering, operating this luxury pontoon feels effortless, giving you total control whether cruising at leisure or navigating to your destination.

Unmatched Luxury Features Aboard the Grand Mariner

The Grand Mariner 250 SL is not just a boat; it's an elevated floating entertainment hub. Every detail has been curated for luxury living, making this one of the most feature-rich pontoons available today.

• State-of-the-Art Audio System: Enjoy crystal-clear sound throughout your outing with the comprehensive JL Platinum Sound System, featuring dedicated tower speakers and integrated audio zones.
• Advanced Navigation & Displays: The helm station is equipped with dual Simrad NSX9 displays, providing intuitive access to sonar data, GPS mapping, and critical boat information at a glance.
• Luxurious Interior Design: Step into the spacious SLEC floorplan, featuring high-end luxe tungsten furniture complemented by light blue accents. The flooring utilizes durable slate gray woven teak material for an upscale feel underfoot.
• Entertainment & Comfort Amenities: Below deck, you will find ample in-floor storage and a dedicated entertainment center space. A refrigerator with its own battery system keeps refreshments cool throughout the day.

Key Upgrades and Premium Components

This 2026 Harris Grand Mariner comes loaded with desirable performance upgrades that enhance both function and aesthetics:

• Power & Utility: Includes a stainless steel ski tow bar, an ion power tower setup complete with dual biminis for customizable shade.
• Technology Package: Features RGB interior and exterior lighting packages to set the perfect mood after sunset. The helm station is enhanced by a raised wheel design for superior visibility and control.
• Seating & Storage: Maximizing usable space, there are multiple seating areas including a comfortable swim seat aft, alongside pop-up cleats and significant storage capacity throughout the boat structure.

Specifications Overview

The sheer quality of build materials—from the durable 3-tube performance chassis to the high-end fixtures—makes this model an exceptional choice for premium boating.

• Model Year: 2026
• Make/Builder: Harris Pontoons
• Engine Powerplant: Mercury Verado V10 (425 HP) | Single Outboard Propulsion
• Pontoon Length and Width: Approximately 25' 3" in length with an 8' 6" beam.
• Capacity: Designed to comfortably accommodate up to 13 people, making it perfect for large family gatherings or group outings.

When you choose the Harris Grand Mariner 250 SL, you are investing in a blend of powerful performance and unmatched luxury amenities—creating an unforgettable boating experience every time.