2004 BERTRAM Convertible

The 2004 Bertram 510 Convertible is a 51-foot sport fishing yacht designed to combine offshore fishing capability with comfortable cruising and overnight accommodation. Built with a fiberglass deep-V hull, the 510 Convertible has a hull length of about 51 feet 5 inches, a beam of approximately 16 feet 2 inches, and a draft of around 5 feet.

The layout reflects Bertram's traditional convertible concept, with a large aft cockpit for fishing, a raised helm station, and a three-stateroom interior. The salon, galley, and accommodation areas also make the boat suitable for longer stays onboard, giving owners flexibility between offshore fishing trips, coastal cruising, and family use.

Is the 2004 Bertram 510 Convertible for Sale?

Yes, 2004 Bertram 510 Convertible yachts are available on the brokerage market. Current listings include a 2004 example in San Juan, Puerto Rico, advertised at US$485,000, while another 2004 example in Venezuela has been listed at approximately US$490,000. Asking prices and availability can change as boats are sold or relisted.

Because these are more than 20 years old, individual condition can vary substantially. Buyers should compare engine hours, service records, electronics, generator condition, fishing equipment, interior refurbishment, hull maintenance, and previous refit work instead of assuming that all 2004 Bertram 510 Convertible yachts have the same condition or equipment.

2004 Bertram 510 Convertible Price

Recent asking prices for 2004 Bertram 510 Convertible examples are around US$485,000–US$490,000, although the actual market value of an individual boat depends heavily on its condition and specification. One currently listed example has undergone extensive updates, including rebuilt MAN engines, new generators, new air-conditioning systems, batteries, and electrical work.

The purchase budget should also include the costs of a marine survey, haul-out, insurance, dockage, fuel, routine maintenance, and potential refits. On a 2004 sport fishing yacht, the condition of the engines, generators, electronics, air-conditioning, plumbing, fuel system, and fishing equipment can have a significant impact on the total cost of ownership.

Performance and Propulsion

The Bertram 510 Convertible was offered with twin diesel engines, and the published model specifications list MAN 1,050 hp engines as a typical configuration. HMY's model information indicates a cruising speed of approximately 28–30 knots, with top speed in the low-30-knot range. Actual performance varies according to engine specification, load, sea conditions, and hull condition.

A current 2004 example in San Juan is equipped with twin MAN D2840 LE403 engines and has a reported fuel capacity of approximately 1,050 gallons. Another listing reports a cruising speed of 23 knots and a maximum speed of 31 knots, demonstrating why buyers should verify the actual engine package and performance of the specific boat being inspected.

Exterior Design and Construction

The 510 Convertible uses a fiberglass deep-V hull with an approximately 18-degree aft deadrise. Its hull form and large cockpit are characteristic of Bertram's sport fishing design, providing a stable offshore platform while leaving substantial working space aft for fishing activities.

The cockpit is configured for serious fishing and can include a transom fish box, in-deck fish and storage boxes, tackle storage, sink, livewell, rod storage, and access to the engine room. Depending on the individual boat, additional equipment such as outriggers, teak decking, updated helm electronics, and a bow thruster may also be installed.

Interior and Accommodation

The 2004 Bertram 510 Convertible features a three-stateroom layout with two heads in the commonly listed configuration. The master stateroom is positioned amidships, while the forward VIP stateroom provides additional sleeping space. The interior uses a traditional cherrywood finish and is arranged to support both overnight cruising and extended stays.

The main salon has an L-shaped lounge and entertainment area, while the galley is positioned forward and includes practical equipment for onboard living. A current 2004 example has updated upholstery, refurbished appliances, refrigeration and freezer equipment, and other interior improvements, showing how individual boats can differ considerably from their original specification.

What to Check Before Buying a 2004 Bertram 510 Convertible

Before making an offer, a complete marine survey, haul-out inspection, and professional sea trial are strongly recommended. The inspection should cover the fiberglass hull and deck, stringers, bulkheads, running gear, shafts, propellers, rudders, through-hulls, fuel tanks, electrical systems, generators, air-conditioning, plumbing, steering, and hydraulic equipment.

The twin MAN engines should be inspected individually, including engine hours, service records, diagnostic reports, cooling systems, exhaust components, turbochargers, transmissions, and evidence of previous repairs. Buyers should also test the generators, navigation electronics, bow thruster, livewell, fish boxes, refrigeration, watermaker if fitted, and other fishing systems before completing the purchase.