The price reflects the base cost, excluding any options, rigging, or freight charges.

Run the bay with confidence in the morning and host at the sandbar by noon—without stepping up to a boat that feels oversized for daily use.

If you’ve owned a smaller bay or hybrid boat, you already know the trade-offs: limited offshore comfort, tight seating when friends join, and range that keeps you watching the fuel gauge. The 2026 Sportsman Heritage 231 replaces that tension with a 23-foot platform that stays manageable at the dock while expanding your usable range and passenger capacity.

With a Yamaha F300XSB delivering up to 300 horsepower and 106 gallons of usable fuel capacity, this setup supports longer Tampa Bay crossings, Egmont runs, and nearshore Gulf trips without feeling underpowered or range-restricted. The 20° deadrise improves ride comfort when the afternoon chop builds, helping you maintain pace with less throttle correction.

At the helm, the Garmin 12” GPSMAP display with CHIRP sonar keeps navigation and bottom detail clear and consolidated. SeaStar hydraulic tilt steering and digital switching reduce helm effort and simplify system control. Seakeeper Ride automatically adjusts trim and running attitude, improving visibility and reducing bow rise so you stay focused ahead instead of managing the hull.

The layout balances fishing function with family flexibility. Twin 10-gallon livewells support bait management, while under-gunwale rod racks and flush rod holders keep decks clear. When it’s time to shift gears, the removable bow table, bow sun cushion, rear bench with flip-flop backrests, and premium dual chair leaning post create a social layout that works at Shell Key or Clearwater Beach.

A porcelain head inside the console adds real-world usability for longer days. The built-in swim platform with 4-step ladder, telescoping ski tow bar, and freshwater washdown make sandbar stops and water sports easy to manage.

Built with an advanced fiberglass stringer system and backed by a 10-year hull warranty, the Heritage 231 keeps long-term structural concerns low while maintaining resale strength.

This is for owners who want one boat that fishes seriously but still hosts comfortably.

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, not a transaction.

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” MFD with CHIRP sonar consolidates navigation and fishfinding into one clear interface.

• Garmin Apollo RA670 stereo and JL Audio speakers provide clean sound underway.

• SeaStar Interact digital switching centralizes control of onboard systems.

• Seakeeper Ride VACS automatically adjusts running attitude for improved balance and visibility.

• Dual battery configuration with switch and trays supports system redundancy.

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 sun deck and removable table converts to forward seating for entertaining.

• Premium marine silicone upholstery simplifies cleanup and resists staining.

• Porcelain head with overboard discharge and pump-out increases day-long usability.

Fishing & Storage

• Twin 10-gallon aft aquarium livewells maintain bait health.

• Under-gunwale rod racks and kingfish rod holders keep gear secure and organized.

• Raw water and freshwater washdowns reduce post-trip cleanup time.

• Stern anchor storage and windlass system simplify anchoring.

Hull & Deck

• 106-gallon fuel tank with level sensor supports longer runs.

• An advanced fiberglass stringer system (no wood) reduces long-term maintenance risk.

• Self-bailing cockpit enhances safety at rest and underway.

• Built-in swim platform with 4-step ladder improves water access.

• Telescoping ski tow bar supports family watersports.

• 10-year hull warranty reinforces long-term ownership confidence.