2023 Boston Whaler 405 Conquest
$950,000
Boat in Key Largo, FL US
Built in 2023
405 Conquest
3 Engines (3x Mercury)
40 feet
Gas
Fiberglass/Reinforced
Powered by triple Mercury V600 Verado outboards, this vessel delivers serious offshore performance with effortless cruising power, giving you the confidence to run far, fast, and comfortably. Equipped with a Seakeeper Gyro to ensure everything stays smooth and steady, whether you're trolling offshore or anchored at the sandbar. FLIR night vision and a full suite of Raymarine electronics delivering precision navigation in all conditions.
Designed to do it all, the 405 Conquest is the perfect platform for Canyon fishing, effortless Bahamas crossings, sandbar days, and memorable sunset cruises. Step below deck and you will find a beautifully appointed cabin with generous accommodations, perfect for overnight stays!
Turnkey and fully loaded, this 405 Conquest is ready to elevate every moment on the water.
(Upcoming Photo Shoot Scheduled, More Photos To Come!)
• LOA: ~41’ 4”
• Beam: 13’ 6”
• Draft: ~2’ 6”
• Dry weight: ~22,400 lbs
• Fuel capacity: ~620 gallons
• Water: 90 gallons / Holding: 30 gallons
• Passenger capacity: ~20
• Multi-mission design: offshore fishing + cruising + entertaining (“SUV of the sea”)
• Joystick Piloting (JPO) w/ Skyhook
• Integrated power steering & digital throttle/shift
• Seakeeper gyro stabilizer • Fischer Panda Generator (15KW)
-Raymarine Axiom XL 16” screen (GPS, chart plotter, fishfinder)
-Raymarine Axiom XL 16” screen (additional display)
-Raymarine 1000-watt recessed thru-hull transducer (B275)
-Raymarine Sounder RV-1000 with RV-100 Realvision 3D transom mounted transducer
-Raymarine Ray63 VHF system with wireless Ray mic at helm
• Mercury VesselView integration
• Autopilot, Raymarine Radar, FLIR
• Joystick + bow thruster control
• Adjustable helm seating (triple captain’s chairs)
• Premium JL Audio system
• Air-conditioned helm deck
• Convertible cockpit dining table
• Portside dive door w/ ladder
• Forward lounge seating w/ sunpad conversion
• Electric sunshade (aft cockpit)
• Windlass anchor system
• Hydraulic swim platform
• Sleeps up to 6–8 people
• Forward master berth
• Mid-cabin sleeping area
• Convertible dinette
• Full galley
• Refrigerator/freezer
• Cooktop / microwave
• Solid surface countertops
• Enclosed head w/ separate shower
• Skylights & natural lighting
• Fischer Panda Diesel generator (15kW option)
• Shore power system
• Air conditioning (helm + cabin)
• Water heater
• Battery management system
• water maker
• full side glass enclosure
• LED lighting throughout
Price History
| Date | Event | Price |
|---|---|---|
| 4/29/26 | Initial price | $950,000 |
2023 Boston Whaler 405 Conquest Video Tours
Boattest.com Review
Overview
The Boston Whaler 405 Conquest is the largest model in the Conquest lineup, designed as a versatile vessel capable of offshore fishing as well as extended family vacations for up to six people. It combines spaciousness with performance, embodying the brand's signature styling and reliable handling characteristics.
Dimensions and Weight
The 405 Conquest measures 41 feet 4 inches in length overall, with a beam of 13 feet 6 inches and a draft of 2 feet 7 inches. The boat's empty weight is 24,518 pounds. During testing, with 450 gallons of fuel, 90 gallons of water, 35 gallons of diesel for the generator, three people, and test equipment aboard, the estimated test weight was 31,622 pounds.
Power and Performance
The test boat was equipped with four Mercury supercharged 400 horsepower four-stroke outboard engines. At full throttle of 6,100 RPM, the 405 Conquest reached a top speed of 52 miles per hour. The most efficient cruise speed was found at 4,500 RPM, where the boat traveled at 32.8 miles per hour while consuming 52.7 gallons of fuel per hour, resulting in approximately 0.6 miles per gallon and a range of 336 statute miles with 10% of the 600-gallon fuel capacity reserved. The minimum planning speed was 12.6 miles per hour. At idle speeds of 600 and 1,000 RPM, the boat moved at 3.6 and 6 miles per hour respectively, with fuel consumption rates of 2.5 and 4.4 gallons per hour, maintaining a fuel efficiency rating of 1.4 miles per gallon. Acceleration tests showed the boat planed in 4.7 seconds, reached 20 miles per hour in 7.2 seconds, and 30 miles per hour in 12.9 seconds. Maneuverability was excellent, with the vessel handling wakes and tight turns with agility uncommon for its size. Docking was facilitated by a port-side joystick and an opening side door.
Helm and Controls
The helm console is well-equipped and thoughtfully designed. At the top are USB and auxiliary inputs, 12-volt power outlets, and an inductive charger for mobile phones. The test boat featured optional twin 19-inch Raymarine multifunction displays, while the standard configuration includes 16-inch units. Accessory switches and air conditioning vents are positioned above the tilt stainless steel steering wheel, which aligns with a compass. To the left of the wheel are controls for the Fusion Apollo stereo, Mercury Vessel View display, and spotlight. The right side houses ignition and trim tab buttons, with digital shift and throttle controls and the Mercury joystick piloting system located just aft. The helm benefits from optional full-side windows with an opening section, allowing the operator to view the boat's side, operate the joystick, and reach cleats for docking lines. The port console includes a companion station with a 24-inch multifunction display and a hidden second joystick for port-side docking. Additional power outlets and phone chargers are also integrated into the port console.
Exterior Features and Deck Layout
Side passageways are equipped with stainless steel rails for safety and ease of movement. The foredeck features a Lumar windlass with a 10-inch cleat for securing the anchor rode, pull-up cleats on each side, and sockets for a bow shade. Access to the anchor locker is conveniently located alongside the windlass. The stern area includes a starboard transom door providing easy access, a narrow walkway forward of the splash well, and small swim platforms on both sides. A four-step ladder is stored in a dedicated locker on the starboard side. Motor rigging is cleanly arranged with inspection hatches forward of each engine. Below decks, the main distribution panel is accessible within the cabin, and mechanical equipment is reachable via a large in-deck hatch in the center of the cockpit. This compartment houses a 15kW Fisher Panda generator—an upgrade from the standard 12kW unit—paired with a SeaKeeper 6 gyro stabilizer. Fuel water separators and battery chargers are positioned outboard to starboard, with strainers and bilge pumps located forward of the generator.
Conclusion
The Boston Whaler 405 Conquest impresses with its combination of spacious design, versatile functionality, and strong performance. Handling characteristics meet the high standards associated with the brand, delivering agility and ease of operation even in challenging conditions. The helm layout and exterior features support both fishing and cruising activities effectively. Overall, the 405 Conquest stands out as a well-rounded vessel suitable for a variety of boating pursuits.
Overview from around the web 2023 Boston Whaler 405 Conquest
The 2023 Boston Whaler 405 Conquest has garnered rave reviews from customers, highlighting its impressive blend of luxury, performance, and functionality
Boaters appreciate its spacious and well-designed cockpit, perfect for entertaining and fishing alike. The ample seating and integrated features cater to family outings and social gatherings, making every voyage comfortable. Customers also praise the advanced technology and navigation systems, noting the ease of handling and safety features that inspire confidence whether cruising or battling open waters. The dual Mercury engines provide powerful performance, allowing for smooth and efficient travel, even in challenging conditions. In addition, the cabin's luxurious finishes and smart layout receive high marks for their comfort and livability. With a fully-equipped galley and well-appointed sleeping quarters, adventurers find it easy to enjoy extended trips without sacrificing comfort. Overall, the 2023 Boston Whaler 405 Conquest stands out for its combination of style, durability, and versatility, making it a favorite among seasoned boaters and newcomers alike.
The Biggest Pros and Cons
2023 Boston Whaler 405 Conquest: Pros and Cons
Pros
Exceptional Build Quality: Boston Whaler is renowned for its sturdy construction and the 405 Conquest is no exception. The boat features a fiberglass hull designed to withstand the elements, ensuring durability and longevity.
Versatile Design: With a spacious layout optimized for both fishing and family outings, the 405 Conquest seamlessly transitions from day cruising to overnight adventures. The smart design includes a well-appointed cabin with sleeping accommodations for several guests.
Advanced Technology: This model comes equipped with cutting-edge navigation and entertainment systems, including advanced marine electronics and ample connectivity features, making it easy to stay connected on the water.
Comfortable Amenities: The cabin offers a luxurious experience, featuring a well-equipped galley, plush seating, and a full head, providing the comforts of home while out at sea.
Powerful Performance: Outfitted with high-performance engines, the 405 Conquest delivers impressive speed and agility, making it suitable for various water conditions and enhancing the overall boating experience.
Safety Features: Boston Whaler prioritizes safety with features like an unsinkable hull design, ample safety gear storage, and multiple access points for emergencies, ensuring peace of mind while on board.
Cons
Price Point: The 2023 Boston Whaler 405 Conquest is considered a premium offering, which may be out of reach for some potential buyers looking for more budget-friendly options in the boating market.
Size and Maneuverability: While the spacious design is a significant advantage, the larger size of the 405 Conquest can make it more challenging to maneuver in tight spaces compared to smaller boats.
Fuel Consumption: The powerful engines and larger size can lead to higher fuel consumption, which is an essential consideration for those planning long excursions or frequent outings.
Requires Experience: Due to its size and performance capabilities, the 405 Conquest is best suited for experienced boaters. Novice users may feel overwhelmed by its advanced features and handling.
Storage Limitations: Despite the ample amenities and spacious design, some users may find that storage space for gear and equipment is limited, especially if planning extended trips.
Made For
The 2023 Boston Whaler 405 Conquest is designed for avid boaters who seek a perfect blend of luxury, versatility, and performance on the water. Ideal for families, fishing enthusiasts, and those who love to explore both coastal and offshore environments, this model caters to a variety of lifestyles. With its spacious layout, the 405 Conquest comfortably accommodates friends and family, making it perfect for day trips or weekend getaways. Equipped with state-of-the-art amenities, including a well-appointed galley, comfortable sleeping quarters, and an impressive entertainment system, this vessel ensures that every outing is enjoyable and relaxing. For the serious angler, the 405 Conquest features a robust fishing platform with ample storage for gear, a large livewell, and fishing rod holders, all while providing a smooth, stable performance in various conditions. Whether you're cruising the coastline, anchoring in a secluded cove, or chasing the big catch offshore, this boat is engineered to excel. In summary, the 2023 Boston Whaler 405 Conquest is tailored for those who appreciate quality craftsmanship, innovative design, and the thrill of adventure on the water. Whether you're a seasoned mariner or a first-time boater, this model promises an unforgettable experience.
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| $950,000 | $950,000 | $1,050,000 | $1,050,000 | $824,900 | $1,100,000 |
| Key Largo | Key Largo | Key West | Key West | Fort Lauderdale | Miami Beach |
| 40' | - | 40' | - | 41' | 41' |
| Mercury | Mercury | Mercury | Mercury | Mercury | Mercury |
| 600 hp | 600 hp | 450 hp | 450 hp | 300 hp | 600 hp |
| 22 | 21 | 114 | 115 | 100 | 281 |
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Contact Moore Yacht Sales about 2023 Boston Whaler 405 Conquest
Buzzards Bay, MA
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