Ugly Johns Custom Boats

Information

Experience the ultimate blend of luxury, performance, and technology with this brand-new 2026 Sea Ray SLX 310. Powered by twin MerCruiser ECT 6.2L 350 HP engines, this premium day boat delivers smooth handling, confident acceleration, and an exceptional on-water experience for family cruising, watersports, and entertaining.

This SLX 310 is loaded with nearly every factory option pushing the MSRP over $500K, including Sea Ray’s most sought-after comfort, technology, and convenience upgrades. Finished in a sleek Black full-hull color with Dune interior. 

Power & Performance

• Twin MerCruiser ECT 6.2L (350 HP each) — 700 total horsepower
• Bravo IIIX Drives
• Dynamic Running Surface w/ Pro Control for automatic trim, stability & optimized performance
• Ski Tow from Hardtop for effortless tow-sport days

Premium Comfort & Entertainment

• Extended Sunshade for bow & cockpit coverage
• Automated Submersible Swim Platform — perfect for swimming and lounging
• Cockpit SeaDek + SeaDek Swim Platform Upgrade

• Photos