­This brand new 2026 Yellowfin 21 Hybrid has never even touched the water. This rare model in the deep grey color brings out the beautiful lines that Yellowfin is known for. The custom AmeraTrail aluminum trailer with spare tire matches the quality of the boat. MarineMax is able to custmize and install any options to set this unit up exactly how you want it. MarineMax offers hassle free finance and insurance options to make this purchse any easy process.

The Yellowfin 21 Bay is a high-performance, premium bay boat designed for serious inshore and nearshore anglers. Built on the successful stepped hull of the Yellowfin 21 Hybrid, it is known for its speed, stability, and high-end construction. Reviewers praise its fast hole shot, smooth ride in chop, and excellent fishing layout.

Yellowfin 21 Bay is an excellent option for the serious angler who wants a top-tier, custom-built bay boat that offers:

High performance and speed to get to fishing spots quickly.

Excellent fishability with features like a stable platform, multiple livewells, and ample storage.

The ability to fish in both skinny water and moderately choppy conditions due to its low draft and efficient hull.

With incredible acceleration, fuel economy, and eye watering top end, this rocket will push you past the competition in any condition. There is not another boat that will push you across big windy bays as the 21 Hybrid. Why Hybrid? The ride and performance of the 24 Bay combined with a traditional flats boat layout will push you past the fiercest redfish competitor. Constructed like its big brother, you can be assured of having the highest quality in the industry. You will be hard pressed to find another boat in its class with as many standard features and storage as you will find on the 21 Hybrid.

Performance and ride

• Stepped hull design: The Yellowfin 21 Bay uses a stepped hull, a signature Yellowfin feature that creates a cushion of aerated water for a fast, efficient, and smooth ride.
• Quick acceleration: Test runs show the boat has a "whiplash fast" hole shot, vaulting to plane in a few seconds and reaching 30 mph in about six seconds.
• Top speed and fuel efficiency: The

21 Bay can exceed 55 mph with a 200 hp engine, though a more efficient cruise speed of 30–31 mph can be achieved at lower RPMs.

• Stable and predictable handling: The boat is praised for its precise and predictable handling, with reviewers noting it holds its course well during turns and does not slide.
• Low draft: With a draft of just over one foot, the 21 Bay can access very shallow waters, making it excellent for stalking inshore species.

Fishing features and layout

• Spacious decks: The boat has a large, elevated casting platform both forward and aft, offering ample room for multiple anglers to fish without obstruction.
• Ample livewells: It features multiple livewells, including three round wells on the aft deck, to accommodate a large supply of live bait.
• Excellent storage: There is abundant storage space, including a large insulated fish box in the bow step and additional storage compartments under the forward casting deck. Hatches are well-sealed to keep water out.
• Console and rigging: The elevated center console allows the captain to stand or sit. It has an immaculately rigged and organized interior, with a large dash capable of holding a 15-inch multi-function display.
• Thoughtful details: Reviewers noted the boat's attention to detail, including abundant rod holders, secure non-skid surfaces, and a hull design that minimizes fish-spooking hull slap.

Construction and hardware

• High-quality construction: Yellowfin is known for its quality construction and use of high-grade materials, with each boat custom-built.
• Standard equipment: The 21 Bay comes well-equipped from the factory, typically including a jack plate, a Power-Pole shallow-water anchor, and an AmeraTrail aluminum trailer.
• Premium hardware: The boat uses high-end hardware, such as Gemlux cleats and rod holders, and has O-ring gutter systems to prevent water intrusion.

200 hp, 3.4 L Mercury four-stroke

Mercury Enertia Eco 21P

57 mph @ 5,600 rpm

LOA: 21’9″

Beam: 7’9″

Fuel Capacity :50 gal.