Owns a 23 foot platform that runs clean across Tampa Bay in the morning and still hosts comfortably at the sandbar in the afternoon.

If you’re stepping up from a smaller bay or hybrid boat, you already know the limits—tight seating, short range, and a ride that requires constant trim correction in afternoon chop. The 2026 Sportsman Heritage 231 replaces that compromise with balanced power, improved range, and a layout that works for both fishing and family use.

Powered by a Yamaha F300XSB delivering up to 300 horsepower, this configuration provides strong mid-range acceleration and controlled cruise. With 106 gallons of usable fuel capacity, you gain the flexibility to run St. Pete to Egmont or down toward Sarasota without building your day around fuel stops. The 20° deadrise helps soften chop, reducing helm fatigue when conditions shift.

At the helm, a Garmin 12” GPSMAP display with CHIRP sonar centralises navigation and bottom detail into one clear interface. SeaStar hydraulic tilt steering improves control and comfort. Seakeeper Ride automatically adjusts running attitude, improving visibility and balance so you spend less time adjusting trim and more time focused ahead.

Fishing capability stays practical and organised. Twin 10-gallon aquarium livewells support bait management. Under-gunwale rod racks and flush rod holders keep decks clear. Raw and freshwater washdowns reduce cleanup time at the dock.

When the rods are stowed, the layout shifts easily. The removable bow table and sun cushion convert the forward deck for social use. A rear bench with flip-flop backrests adjusts for cruising or conversation. The premium dual chair leaning post improves run comfort, while a porcelain head inside the console supports longer days on the water without cutting trips short.

Built with an advanced fibreglass stringer system and backed by a 10-year hull warranty, the Heritage 231 is structured for long-term ownership confidence and resale stability.

This is for owners who want one boat that handles serious fishing without giving up comfort.

Meet with Thunder Marine to walk through this exact configuration, understand how it fits Tampa Bay's use, and review delivery and long-term support. Contact for Pricing.

Ownership with Thunder

• Factory-trained technicians located in St. Petersburg.

• Clear delivery orientation tailored to experienced boaters.

• Structured service scheduling and warranty coordination.

• Long-term relationship support beyond the sale.

Key Specs

• Length Overall: 23’ 4”

• Beam: 8’ 6”

• Draft (up): 16”

• Deadrise at Transom: 20°

• Approx. Dry Weight: 3,950 lbs.

• Max Horsepower: 300 HP

• Number of Engines: 1

• Engine Make and Model: Yamaha F300XSB

• Fuel Tank Capacity: 116 gallons

• Approx. Usable Fuel Capacity: 106 gallons

• Freshwater Tank Capacity: 15 gallons

• Livewells: (2) 10 gallons

• Console Cooler: 48 qt.

• Person Capacity: 12

• Approx. Bridge Clearance w/ Top: 9’ 4”

Features

Helm & Electronics

• Garmin GPSMAP 1243xsv 12” display with CHIRP sonar consolidates navigation and fishfinding.
• Garmin Apollo RA670 stereo with JL Audio speakers delivers clear sound underway.
• SeaStar Interact digital switching centralises system control.
• Seakeeper Ride VACS automatically adjusts trim for improved balance and visibility.
• Dual battery configuration supports system reliability.
• Scanstrut wireless chargers reduce cord clutter at the helm.

Seating & Comfort

• Premium dual chair leaning post with flip-up bolsters and armrests improves run comfort.
• Rear bench seat with flip-flop backrests adjusts for cruising or social positioning.
• Bow cushion set with removable filler and table converts the forward deck.
• Porcelain head with overboard discharge and pump-out increases day-long usability.
• Premium marine silicone upholstery simplifies cleaning and resists staining.

Fishing & Utility

• Twin 10-gallon aft aquarium livewells maintain bait health.
• Under-gunwale rod racks and kingfish rod holders keep decks organised.
• Raw and freshwater washdowns reduce post-trip cleanup time.
• Stern anchor storage and windlass system simplify anchoring.
• Telescoping ski tow bar supports family watersports.
• Built-in swim platform with 4-step ladder improves water access.

Construction & Deck

• An advanced fibreglass stringer system (no wood) reduces long-term structural risk.
• Self-bailing cockpit enhances safety underway and at rest.
• 10-year hull warranty supports resale confidence.
• NMMA Certified.