51 Bertram 2004 Boat for Sale

Big Bird

ASKING PRICE: $485,000 Watch Price

San Juan, Puerto Rico

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Big Bird Yacht Photos Pics 2004 Bertram 510 Convertible yacht cruising on open water under a clear sky.

Big Bird Yacht Photos Pics 2004 Bertram 510 Convertible yacht cruising in clear blue waters.

Big Bird Yacht Photos Pics 2004 Bertram 510 Convertible yacht cruising in clear blue waters near a rocky coastline.

Big Bird Yacht Photos Pics 2004 Bertram 510 Convertible yacht cruising in clear blue waters near a historic coastal fort.

Big Bird Yacht Photos Pics 2004 Bertram 510 Convertible yacht cruising on open water, aerial view.

Big Bird Yacht Photos Pics 2004 Bertram 510 Convertible yacht cruising on open water, rear view.

Big Bird Yacht Photos Pics Luxurious interior of 2004 Bertram 510 Convertible yacht with plush seating and ocean view.

Big Bird Yacht Photos Pics Luxurious interior of a 2004 Bertram 510 Convertible yacht with elegant seating and wooden finishes.

Big Bird Yacht Photos Pics Luxurious interior of a 2004 Bertram 510 Convertible yacht with elegant wood finishes.

Big Bird Yacht Photos Pics Luxurious kitchen interior of 2004 Bertram 510 Convertible yacht with wooden cabinets and large windows.

Big Bird Yacht Photos Pics Luxurious kitchen interior of a 2004 Bertram 510 Convertible yacht with wooden cabinetry.

Big Bird Yacht Photos Pics Luxurious interior of 2004 Bertram 510 Convertible yacht with ocean view.

Big Bird Yacht Photos Pics Luxurious cabin interior of 2004 Bertram 510 Convertible yacht with striped bedding.

Big Bird Yacht Photos Pics Luxurious bathroom in a 2004 Bertram 510 Convertible yacht with wood cabinetry and modern fixtures.

Big Bird Yacht Photos Pics Luxurious cabin interior of a 2004 Bertram 510 Convertible yacht with wood paneling.

Big Bird Yacht Photos Pics Luxurious bathroom in a 2004 Bertram 510 Convertible yacht with shower and wooden cabinetry.

Big Bird Yacht Photos Pics Cozy twin cabin in 2004 Bertram 510 Convertible yacht, featuring wooden accents and soft lighting.

Big Bird Yacht Photos Pics Helm of 2004 Bertram 510 Convertible yacht with navigation screens and steering wheel.

Big Bird Yacht Photos Pics Helm of 2004 Bertram 510 Convertible yacht with modern navigation equipment.

Big Bird Yacht Photos Pics Luxurious 2004 Bertram 510 Convertible yacht interior with ocean view and comfortable seating.

Big Bird Yacht Photos Pics Bow view of 2004 Bertram 510 Convertible yacht on calm blue waters.

Big Bird Yacht Photos Pics 2004 Bertram 510 Convertible yacht with wooden deck, ladder, and table, named "Big Bird."

Big Bird Yacht Photos Pics Bow of 2004 Bertram 510 Convertible yacht on clear blue water.

Big Bird Yacht Photos Pics 2004 Bertram 510 Convertible yacht "Big Bird" cruising on turquoise waters under a cloudy sky.

Big Bird Yacht Photos Pics Engine room of a 2004 Bertram 510 Convertible yacht, showcasing detailed machinery.

Big Bird Yacht Photos Pics Engine room of a 2004 Bertram 510 Convertible yacht, showcasing complex machinery.

Big Bird Yacht Photos Pics Engine room of a 2004 Bertram 510 Convertible yacht, showcasing dual engines.

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Last updated Apr 27, 2026

Big Bird Boat | 51' Bertram 2004

2004 Bertram 51 Convertible – “Big Bird”

This 2004 Bertram 51 Convertible “Big Bird” is a fully refreshed, turnkey sportfish that blends legendary Bertram performance with a serious list of upgrades. The engine room has been completely redone and painted, with rebuilt MAN engines, new 15kW generators, new air conditioning systems, and new batteries throughout. She also features complete engine rewiring and updated engine computers, bringing this classic into modern, reliable condition. Layout 3 staterooms and 2 Full Heads.

Built to fish hard and cruise in comfort, “Big Bird” offers the perfect balance of offshore capability, solid construction, and upgraded systems—ready for her next owner with nothing left to do but step aboard and go.

Vessel Highlights

Twin MAN D2840 LE403 Engines
Bow Thruster for Easy Maneuvering
Teak Deck & Steps
Extensive Electrical Rewiring (Engine Room)
Tackle & Rod Storage

Recent Upgrades

(2) New Phasor Generators (15kW)
Watermaker
A/C System
Upholstery in Salon & Galley
Batteries (1 Year Old)
Refurbished Appliances
Steering Wheel

Electronics & Navigation

(2) Garmin GPSMAP 7612xsv Displays
Garmin Autopilot
Garmin 9” Display
Garmin Tower Display (4”)
New VHF Radios
New Sound System
Fusion Stereo

Mechanical & Systems

MAN Engine Monitoring Computers (Boning System)
Full Engine Room Rewiring
Dual Generators (Phasor 15kW)

Galley & Interior

2-Drawer Refrigerator
2-Drawer Freezer
Full-Size Freezer
Refurbished Appliances
Updated Upholstery

Cockpit & Deck

Teak Decking
Sink in Cockpit
Tackle Storage
Rod Holders

Accommodations

3 Stateroom Layout
- Master Stateroom (Private Head)
- VIP Stateroom
- Guest Stateroom (Side-by-Side Berths)
2 Heads Total

Engines

Port Engine

MAN D2840 LE403
Engine No: 474068203A201

Starboard Engine

MAN D2840 LE403
Engine No: 474068202A201

Denison Yachting - San Francisco is pleased to assist you in the purchase of this vessel. This boat is centrally listed by HOLA Yacht Sales.

Denison Yacht Sales offers the details of this yacht in good faith but can’t guarantee the accuracy of this information nor warrant the condition of this boat for sale. This yacht for sale is offered subject to prior sale, price change, or withdrawal from that yacht market without notice. She is offered as a convenience by this yacht broker to its clients and is not intended to convey direct representation of a specific yacht for sale.