2026 Boston Whaler 405 Conquest
Price on request
Boat in Hampton Bays, NY 11946 US
Built in 2026
405 Conquest
3 Engines (3x Mercury)
40 feet
Gas
Fiberglass/Reinforced
2026 Boston Whaler 405 Conquest-On Order
What can be said about the 405 Conquest? It's been called "the SUV of the sea". It's a formidable offshore angler. It's an entertainer with amenities beyond compare. Its luxurious cabin surpasses all expectations. It's powered by up to 1,800 horses. This 41-foot dual-console cabin cruiser boat absolutely does not compromise when it comes to performance, comfort, and fishability. Enjoy long-distance cruises and overnight stays, chase gamefish far offshore, or host an impromptu gathering-with the 405 Conquest, you never have to choose between gracious comfort and exceptional capability.
POWERED BY:WHITE Joystick Piloting Triple 600hp V12 Mercury Verado 4-Stoke Engines
Installed & Tested, Hydraulic Tilt Steering, Shadow Mode Technology, Fuel/Water Separators, Whaler Watch, & 16" Navigation Package
*Joystick Piloting is a part of the complete SmartCraft Package which includes electronic steering and skyhook autopilot keypad & functionality
Gyroscopic Stabilizer with 2-year/2,000-hour complete system warranty
OPTIONAL FEATURES INCLUDED:
-Abaco Blue Painted Hull, Silver Graphics
-Black Frame, Black Canvas
-Bow Thruster
-SS Fender Holders
-Anchor Windlass Chain
-Aft Cockpit Tables (2 - solid teak w/storage)
-Cockpit Refrigerator
-Cooktop - Helm Deck
-Cockpit Foldout Bench Seat - Stbd
-Underwater Lighting - Blue LED (6)
-12V DC Receptacle
-Additional Portlight Windows
-Freezer - top loading
-Hardtop w/Sunroof (Electric)
-Full Side Glass
-Bow Sunshade
-Remote Mast Light / Antenna Powerbase
-Hardtop Light Bar
-Premium Audio Package
-19" Simrad NSO Dual Elec/Nav Pkg
-24" Simrad NSO Additional Display Pkg
-Auto ID System (AIS) NSPL -500 Transceiver
-Radar - Simrad Open Array Halo 48" w/Bird+
-Camera, cockpit rear view
-Rod Storage
-Canvas, mesh windshield shades
-Canvas Cover Package
-Generator Diesel 120V
-Shore Power Cable Reel
SPECS-LOA:41'4" Beam:13'6" Draft:30" Weight:30,360 lbs (with engines/fuel/water) Fuel:620 gallons Persons:20
PERFORMANCE-61.5 mph @ 6800 RPM / 0-30 mph in 7.5 seconds / 6.9 seconds to plane
Hampton Watercraft & Marine is committed to delivering an exceptional customer experience. We are annually awarded the highest customer satisfaction in both sales and service by our boat and engine manufacturers which include Boston Whaler, Tiara Yachts, & Mercury outboards. Our commitment to excellence combined with our world class facilities and employees enable us to ensure 100% customer satisfaction through the entire sales process this includes your purchase, delivery, and the service of your vessel long after the sale.
- 120-V receptacle
- Air-conditioning vents from main cabin (16,000 BTU unit)
- Carbon monoxide detector
- Flooring and entry steps - solid teak with satin finish
- Lighting - LED reading lights (2)
- Lighting - LED RGB diffused courtesy lighting with dimmer control
- Lighting - LED white overhead lights with dimmer switches (1 in main area, 2 in bed area)
- Mattress - 6” thick Premium Handcraft® pillowtop innerspring with hinged access to storage
- Privacy curtain
- Storage - hanging locker (cedar lined) with removable shelves and galley dish storage with door activated light
- Storage - large storage compartment under the mattress with a powered access hatch, providing easy access to storage drawers and large molded in fiberglass trunk
- Vimar single USB receptacle
- Mid berth comes with fitted sheet, comforter and two regular size pillowcases
- 10” stainless steel cleats - stern cockpit with gunnel boats hawse pipe (2), anchor locker (1)
- 10” stainless steel pull-up cleats - bow (2), spring line (2), crosstie cleats at transom (2)
- 27” interior freeboard
- Acrylic transom door with stainless steel latch
- Anchor windlass with 400’ rode and chain (handheld remote control, stainless steel swivel, polished stainless steel 44lb anchor, polished stainless steel bow roller davit)
- Boarding ladder at transom
- Bow eye (heavy duty polished stainless steel)
- Chrome Boston Whaler logo/model designator
- Coaming bolsters (cockpit)
- Dive door (molded fiberglass boarding door on port side with removable stainless-steel dive ladder with dedicated storage in stern seat)
- Drink holders (stainless steel) (4 in bow, 2 in hawse pipes, 2 at helm, 2 at port console, 2 at port lounge, 2 per side in recessed pockets at aft helm deck seats)
- Lighting - LED courtesy lights in cockpit (multi-color)
- Livewell (19-gallon) (pressurized insulated in aft port corner with clear lid, blue interior and dual white LED lights)
- Rails - hand rails (welded stainless steel) (companion way to helm deck and into cabin, boarding ladders and prep station)
- Rails - high bow rails (welded stainless steel)
- Rails - rub rail (white with stainless steel insert) (heavy-duty)
- Rails - toe rails (cockpit) (stainless steel) (under gunnel storage shelf with downrigger weight holders - 1 per side)
- Rod holders (gunnel-mounted) (3 aft cockpit starboard) (2 port)
- Rod holders (transom-mounted) (5)
- Rod holders (under gunnel) (2 starboard)
- Self-bailing cockpit sole
- Shower (freshwater with hot and cold water) (near dive door)
- Shower (freshwater with hot and cold water) (near transom door)
- Spotlight (ACR RCL-75) (mounted on hardtop)
- 120-V receptacle at vanity
- Dual entrance (from cabin and from master stateroom)
- Flooring - solid surface flooring in the shower and solid teak flooring on the vanity area
- Lighting - LED overhead light (2) with dimmer
- Lighting - LED RGB diffused courtesy lighting with dimmer control
- Mirror - full length (located on acrylic stateroom access door)
- Opening port light
- Rails - handrail (stainless steel )
- Shower - enclosed shower with rain head and hand-held sprayer with hot and cold faucet and bi-fold acrylic shower divider
- Shower sump
- Skylight (frosted glass)
- Toilet paper holder inside vanity
- Towel ring and bar
- Trash chute in counter
- Vacu-Flush® toilet (electric), holding tank with vent filter, overboard discharge, dockside pump-out, tank full indicator alert and progressive tank level indication integrated into digital network
- Vanity storage
- Vanity with ceramic vessel sink and polished chrome faucet
- Ventilation (forced air)
- 120-V receptacle
- Cabinet - overhead with AC and DC vessel system controls
- Cabinet storage - behind sink providing additional storage for galley supplies
- Cabinet storage - for dishes
- Cabinets - teak wood, satin finish with maple lining located under counter and over galley
- Cooktop burner (single)
- Countertop with faucet and undermount sink (solid surface)
- Lighting - LED RGB courtesy lighting under overhead cabinet and countertop with dimmer control
- Lighting - LED white light overhead (1)
- Microwave - in overhead cabinet
- Pullout out waste receptacle in cabinet under galley counter
- Rail - handrail (stainless steel)
- Refrigerator/freezer - drawer, stainless steel 12-V/120-V (3.0 cubic feet) CR85
- Sink filler - solid surface matching countertop with integral cutting board
- Wine glass holder’s underside of cabinet with lighting (6)
- 120-V receptacle
- Cabinet - overhead with AC and DC vessel system controls
- Cabinet storage - behind sink providing additional storage for galley supplies
- Cabinet storage - for dishes
- Cabinets - teak wood, satin finish with maple lining located under counter and over galley
- Cooktop burner (single)
- Countertop with faucet and undermount sink (solid surface)
- Lighting - LED RGB courtesy lighting under overhead cabinet and countertop with dimmer control
- Lighting - LED white light overhead (1)
- Microwave - in overhead cabinet
- Pullout out waste receptacle in cabinet under galley counter
- Rail - handrail (stainless steel)
- Refrigerator/freezer - drawer, stainless steel 12-V/120-V (3.0 cubic feet) CR85
- Sink filler - solid surface matching countertop with integral cutting board
- Wine glass holder’s underside of cabinet with lighting (6)
- 120-V receptacle (port and starboard)
- Air-conditioner (8,000 BTU) reverse cycle with LCD Control
- Bed - island bed with trunk style front storage access (gas assist hatch), 8” thick Premium Handcraft® pillowtop innerspring mattress with electrically actuated hinged backrest, fitted sheet, comforter and pillowcases (2 regular-size)
- Cabinets overhead on port and starboard side with flip up doors
- Carbon monoxide and smoke detectors
- Door - sliding pocket door separating the stateroom from salon
- Flooring and entry steps - solid teak with satin finish
- Lighting - LED overhead lights (4)
- Lighting - LED overhead reading lights (2)
- Lighting - LED RGB diffused courtesy lighting with dimmer control
- Opening hatch
- Service access to A/C unit (through forward bulkhead) and bow thruster (through the floor)
- Storage - hanging locker with cedar lining with door activated light (starboard side)
- Storage - locker with cedar lining with door activated light and shelves (port side)
- TV - 24” flat screen HDTV with Apple TV Integration
- Vacuum - Dyson V7 handheld with charging holder
- Vimar overhead light switch located on starboard nightstand
- Vimar single USB receptacles on port and starboard nightstands
- Windows with pull down pleated shades (hull-side)
- All hardware 316-L Stainless Steel
- All rails welded 316-L Stainless Steel
- Vinylester barrier coat over entire hull and hull sides
The Company offers the details of this vessel in good faith but cannot guarantee or warrant the accuracy of this information nor warrant the condition of the vessel. A buyer should instruct his agents, or his surveyors, to investigate such details as the buyer desires validated. This vessel is offered subject to prior sale, price change, or withdrawal without notice.
Videos from Hampton Watercraft Marine - Hampton Bays on this 2026 Boston Whaler 405 Conquest
2026 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 2026 Boston Whaler 405 Conquest
Customers are praising the 2026 Boston Whaler 405 Conquest for its exceptional blend of performance, comfort, and versatility
Many highlight the boat’s smooth and stable ride, even in challenging waters, attributing it to Boston Whaler’s renowned hull design. Owners appreciate the spacious and well-thought-out layout, which offers ample room for both fishing and family outings. The quality of craftsmanship and attention to detail throughout the vessel receive frequent commendations, from the durable materials to the stylish finishes. Additionally, users value the advanced technology and convenient features that enhance safety and ease of operation. Overall, the 405 Conquest is celebrated for delivering a premium boating experience that meets the needs of avid anglers and recreational boaters alike.
The Biggest Pros and Cons
The 2026 Boston Whaler 405 Conquest offers a blend of luxury, performance, and versatility, making it a standout in the sportfishing and cruising category. Here are some of the key pros and cons of this model:
Pros
Exceptional Build Quality: Boston Whaler is renowned for its unsinkable hull design and robust construction, providing unmatched safety and durability.
Spacious Layout: The 405 Conquest features a well-thought-out cockpit and cabin space, offering comfort for both fishing and overnight stays.
Advanced Technology: Equipped with state-of-the-art navigation, fish-finding systems, and modern electronics to enhance the boating experience.
Powerful Performance: With twin or triple outboard engine options, it delivers impressive speed and handling, suitable for various water conditions.
Versatile Design: The boat seamlessly transitions from serious fishing excursions to comfortable family cruising.
Luxurious Amenities: Premium seating, ample storage, a fully equipped galley, and a comfortable cabin make extended trips enjoyable.
Cons
Price Point: As a premium vessel, the 405 Conquest comes with a higher price tag, which may be a consideration for budget-conscious buyers.
Size Considerations: At over 40 feet, it might be less maneuverable in tight docking situations and may require more storage space onshore.
Fuel Consumption: Powerful engines mean higher fuel usage, which can add to operating costs during extended outings.
Complex Systems: The advanced electronics and features may require a learning curve for new owners unfamiliar with high-tech boating equipment.
Made For
The 2026 Boston Whaler 405 Conquest is designed for discerning boaters who seek the perfect blend of performance, luxury, and versatility. Ideal for avid anglers, cruising enthusiasts, and families alike, this boat offers exceptional offshore capability combined with spacious, comfortable accommodations. Whether you’re planning a day of sportfishing, a weekend getaway, or entertaining friends on the water, the 405 Conquest delivers unmatched reliability and style for those who demand the best in boating experiences.
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Meet the Broker
Address
Boat Location
Contact Hampton Watercraft Marine - Hampton Bays about 2026 Boston Whaler 405 Conquest
44 Newtown Road, Hampton Bays, NY, 11946
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