Yachts for sale / Boston Whaler 405 Conquest

2024 Boston Whaler 405 Conquest

Merrick, NY, US 41.3 ft · 13.5 ft' beam 43.45 kn kn top
Asking
$1,175,000
Our Thoughts

The 2024 Boston Whaler 405 Conquest represents a refined evolution of the brand's legendary offshore platform, combining the unsinkable construction and seaworthiness that define Boston Whaler with serious cruising capability, fishing versatility, and genuine comfort for extended time at sea. At 41.33 feet with a 13.5-foot beam, this center console-style motor yacht delivers the performance and range expected of a true bluewater cruiser while maintaining the accessibility and handling characteristics that have earned the 405 Conquest its "SUV of the Sea" reputation among discerning offshore boaters.

Power and Performance

Triple white 600-horsepower Mercury V12 Verado engines provide the propulsion foundation for this vessel, delivering reliable, fuel-efficient power across a wide operational envelope. The 405 Conquest cruises comfortably at 30.41 knots and achieves a maximum speed of 43.45 knots, making it equally suited to efficient long-distance cruising or spirited day runs. A 620-gallon fuel capacity extends range significantly, while the integrated Mercury VesselView Link system provides real-time engine monitoring and diagnostics across all three powerplants. A Seakeeper SK6 gyrostabilizer dramatically reduces roll and motion, transforming the offshore experience in moderate sea states. The 12-kilowatt Fischer Panda diesel generator with automatic operation and manual override ensures reliable 240-volt, 60-hertz electrical power for extended cruising, complete with integrated fire suppression for added safety.

Electronics and Navigation

The helm features a dual-display Simrad NSO EVO3S navigation package built into a custom black acrylic dash with flush-mounted 16-inch screens and integrated switch panels. This setup provides comprehensive chartplotting, GPS, and fishfinding capability through a Simrad Open Array Halo 48-inch radar with bird mode integration. The transom-mounted Active Imaging 3-in-1 transducer delivers CHIRP sonar, SideScan, and DownScan imaging for detailed bottom mapping and fish detection. A Simrad RS40 VHF radio with AIS and HS40 wireless handset rounds out the primary communication and navigation suite. Critically, the vessel is equipped with Starlink satellite internet and a Sionyx night vision camera, providing connectivity and enhanced visibility for serious offshore operations.

Audio and Entertainment

A comprehensive JL Audio integration throughout the vessel includes an MM105-HR stereo head unit with AM/FM/HD Radio, USB audio input, and Sirius satellite radio receiver. Bluetooth 5.0 connectivity supports iPhone and Android devices, while a custom JL Audio Digital Signal Processor delivers audiophile-grade sound optimization across multiple zones. The helm deck features M6 7.7-inch coaxial speakers on port and starboard consoles with additional speakers in the hardtop and a 10-inch M6 subwoofer. The bow lounge includes M6 6.5-inch coaxials, while the cockpit features two recessed 8.8-inch M6 coaxials. The main cabin includes an MM50 head unit, C2-400X speaker enclosure system, and an 8-inch subwoofer paired with a 32-inch flat-screen LED HDTV. The forward cabin features an MM50 unit with Bluetooth and USB input connected to a 24-inch LED HDTV with Apple TV integration. The master stateroom incorporates a hidden JL Audio subwoofer with dedicated

Provided listing description Click to read the original broker text

The 2024 Boston Whaler 405 Conquest combines offshore strength with refined comfort, earning its “SUV of the Sea” reputation. Powered by triple Mercury V12 Verados, it offers speed, range, and reliability for serious bluewater adventures. Notable upgrades include a Sionyx night vision camera, Starlink satellite internet, Gemlux outriggers, and a full ceramic coating applied in June 2025 for lasting protection. With Boston Whaler’s unsinkable hull, a versatile cabin sleeping up to seven, and a climate-controlled pilothouse, this 405 Conquest delivers capability and comfort in one package.

2024 Boston Whaler 405 Conquest: Offshore Capability Meets Refined Cruising Comfort
Overview
The 2024 Boston Whaler 405 Conquest represents the pinnacle of the manufacturer's offshore-capable express cruiser category, delivering the legendary unsinkable hull design paired with genuine bluewater performance and interior refinement. At 41 feet 4 inches in length with a 13.5-foot beam, this vessel bridges the gap between serious fishing platform and comfortable family cruiser—a positioning that has earned Boston Whaler the "SUV of the Sea" designation. Powered by triple Mercury V12 Verados and equipped with a full suite of modern electronics, stabilization technology, and premium comfort systems, the 405 Conquest is engineered for extended offshore passages, coastal cruising, and entertaining in equal measure. Located in Merrick, New York, this specific 405 Conquest has been outfitted with a thoughtful collection of upgrades that enhance both capability and lifestyle. A Sionyx night vision camera, Starlink satellite internet connectivity, Gemlux outriggers, and a full ceramic coating applied in June 2025 extend the vessel's functionality and protection. The combination of Boston Whaler's proven hull construction, triple-engine redundancy, and a 620-gallon fuel capacity supports the kind of extended-range cruising that serious boaters demand.
Helm, Electronics, and Navigation
The helm station of the 405 Conquest reflects a professional-grade approach to navigation and vessel management. The centerpiece is a dual navigation package built around three Simrad NSO evo3S 16-inch screen GPS chart plotters, complemented by a 19-inch Simrad NSO EVO3S display. This multi-display setup provides redundancy and allows the captain to dedicate screens to different functions—chart plotting, fishfinding, engine monitoring, and situational awareness—without toggling between views. The custom black acrylic integrated dash features flush-mounted displays and organized switch panels, creating a clean, functional aesthetic that prioritizes usability during extended helm time. The Simrad ecosystem includes an Open Array Halo 48-inch radar with bird overlay, Active Imaging 3-in-1 transom-mounted transducer with CHIRP, SideScan, and DownScan sonar capabilities, and integrated Mercury VesselView Link for real-time engine and propulsion monitoring. The Simrad RS40 VHF radio with AIS and HS40 wireless handset ensures communication redundancy and safety compliance for offshore operations. These systems work together to provide the situational awareness and diagnostic capability that extended cruising and fishing operations require. Audio integration elevates the helm experience beyond basic functionality. A JL Audio MM105-HR stereo system with custom digital signal processor tuning, Sirius satellite radio, AM/FM/HD radio, USB audio, and Bluetooth 5.0 connectivity delivers an audiophile-grade listening environment. The helm deck features four JL M6 7.7-inch coaxial speakers mounted on port and starboard consoles, two additional speakers in the hardtop aft section, and a 10-inch JL subwoofer, all tuned to compensate for the marine environment and optimize clarity across the noise spectrum of engine operation.
Power, Propulsion, and Stabilization
Triple Mercury V12 Verado outboards, each rated at 600 horsepower, deliver 1,800 combined horsepower and represent the modern standard for high-performance offshore express cruisers. This triple-outboard configuration provides redundancy—the vessel remains capable and maneuverable even with one engine offline—while distributing load across three independent powerplants. The Verado platform is known for fuel efficiency, reliability, and the kind of low-end torque that makes backing into tight slips and maneuvering in anchorages straightforward. Cruising speed is rated at 30.41 knots, while maximum speed reaches 43.45 knots. These figures reflect the realistic performance envelope of the 405 Conquest when properly loaded and fueled. The 620-gallon fuel capacity supports extended offshore passages; at cruising speed, the range extends well beyond day-trip parameters, enabling multi-day coastal runs or offshore fishing adventures without refueling concerns. A Seakeeper SK6 gyroscopic stabilization system dramatically improves comfort underway. This active stabilizer reduces roll motion across a broad range of sea states and vessel speeds, making the 405 Conquest notably more comfortable in a seaway than unstabilized designs. For cruising families and fishing crews spending extended hours aboard, the reduction in motion fatigue is significant and measurable. A 12-kilowatt Fischer Panda diesel generator provides 240-volt, 60-hertz shore power and onboard electrical generation. The unit includes automatic start capability with manual override and integrated fire suppression, supporting the climate-controlled comfort systems throughout the vessel. An automatic engine flushing system protects the triple Verados from salt-water corrosion, extending engine life and reducing maintenance intervals.
Fishing Features and Cockpit Design
The 405 Conquest's cockpit is purpose-built for both recreational and serious fishing operations. A 19-gallon pressurized insulated livewell with clear lid, blue interior, and dual white LED lights occupies the aft port corner, maintaining bait and catch viability during extended fishing days. Dedicated fishboxes on the port and starboard sides provide additional storage for the day's catch, while aft cockpit teak tables with integrated storage offer a comfortable staging area for tackle preparation and meal service. Rod storage is comprehensive: three gunnel-mounted rod holders on the starboard aft cockpit, two on the port side, five transom-mounted holders, and two additional under-gunnel holders on the starboard side. This configuration accommodates the typical spread of trolling lines, live-bait presentations, and jigging setups that modern offshore fishing requires. The Gemlux outriggers, a notable upgrade on this vessel, extend the reach of trolling presentations and allow precise placement of baits and lures at various distances from the transom. The cockpit sole is self-bailing, allowing water from washdowns or sea spray to drain automatically. Coaming bolsters provide comfortable back support during extended fishing sessions, while an acrylic transom door with stainless steel latch enables easy access to the swim platform and boarding ladder. A molded fiberglass dive door on the port side, equipped with a removable stainless-steel dive ladder and dedicated stern seat storage, facilitates water entry for diving or swimming operations. Two freshwater showers—one near the dive door and one near the transom door, both with hot and cold water—allow crew to rinse off saltwater and bait residue without entering the cabin. A summer kitchen positioned in the aft cockpit area includes a Vitifrigo refrigerator and pull-out drawer storage, supporting extended entertaining and eliminating the need to retreat to the main galley for drinks and snacks during daytime cruising. The combination of fishing amenities, entertainment features, and practical freshwater facilities makes the 405 Conquest equally comfortable as a fishing platform or a cruising and entertaining vessel.
Cabin and Interior Layout
The 405 Conquest's interior accommodates up to seven guests across three distinct sleeping areas, making it genuinely suitable for multi-day cruising with family or fishing crews. The master stateroom features an island bed with gas-assist trunk-style front storage, an 8-inch Premium Handcraft pillowtop innerspring mattress, and an electrically actuated hinged backrest that converts the bed into a lounging platform. An opening hatch provides natural ventilation, while an 8,000-BTU air-conditioning unit with LCD control maintains climate comfort. Overhead cabinets on port and starboard sides offer storage for personal items, while a hanging locker with cedar lining and door-activated lighting occupies the starboard side. Port-side storage includes a cedar-lined locker with shelves and door-activated lighting. A 24-inch flat-screen HDTV with Apple TV integration, USB receptacles on port and starboard nightstands, and LED overhead and reading lights create a comfortable retreat. A full-length mirror, pull-down pleated window shades, and a Dyson V7 handheld vacuum with charging holder complete the master stateroom amenities. The mid-berth cabin provides a second sleeping area with a 6-inch Premium Handcraft pillowtop innerspring mattress and a powered access hatch to a large under-mattress storage compartment. LED reading lights, RGB diffused courtesy lighting with dimmer control, and a hanging cedar-lined locker with removable shelves support overnight guests. Air-conditioning vents from the main cabin unit ensure thermal comfort, while a carbon monoxide detector provides safety monitoring. The enclosed head features a dual
Length
41.3 ft
Beam
13.5 ft'
Year
2024
Builder
Boston Whaler
Model
405 Conquest
Max speed
43.45 kn kn
What are the engine specifications for the 2024 Boston Whaler 405 Conquest, and how do they affect performance and range?
The 405 Conquest is powered by triple Mercury V12 Verado engines, each producing 600 horsepower, for a combined 1,800 hp. This triple-outboard configuration delivers a cruising speed of approximately 30 knots with a maximum speed capability of 43.5 knots. The 620-gallon fuel capacity supports extended bluewater cruising, making this engine package suitable for serious offshore operations where range and reliability are critical. The integrated Mercury VesselView Link system allows real-time monitoring of all three engines from the helm.
What navigation and fishfinding electronics are included on this 405 Conquest?
The vessel features a comprehensive dual Simrad NSO EVO3S navigation package with three 16-inch GPS chart plotter displays, providing redundancy and multi-station visibility. The system includes Active Imaging 3-in-1 transom-mounted transducers with CHIRP, SideScan, and DownScan sonar technology, plus a Simrad Open Array Halo 48-inch radar with bird mode for weather and target detection. A Simrad RS40 VHF radio with AIS and wireless handset rounds out the communication suite. This electronics package supports both navigation and fishing applications with professional-grade clarity and coverage.
How is the helm station configured, and what makes it suitable for extended offshore operation?
The helm features a custom black acrylic dash with flush-mounted dual Simrad displays integrated alongside switch panels for clean, ergonomic operation. The helm deck includes a zebra wood and teak table with high-gloss finish, stainless steel handrails for safety, and a climate-controlled pilothouse that protects the operator during bluewater conditions. The 27-inch interior freeboard provides solid protection, and the helm deck seating includes fold-out bench seats with dedicated storage. Drink holders, courtesy lighting, and the integrated JL Audio stereo system with dash-mounted controls support both navigation and comfort during long offshore runs.
What fishing features and cockpit amenities does the 405 Conquest offer?
The cockpit is equipped with a 19-gallon pressurized insulated livewell with clear lid and dual white LED lights, plus dedicated fishboxes in the port and starboard Frostbox system for storing the catch. Rod holders are strategically placed with three aft cockpit starboard, two port, five transom-mounted, and two under-gunnel positions for flexible rigging of trolling and casting setups. Gemlux outriggers extend the spread for live bait and lure presentations. The self-bailing cockpit sole handles rough seas, and two freshwater showers (hot and cold) near the dive door and transom door allow rinsing after fishing or diving activities.
What cabin sleeping arrangements and stateroom features are available for family or extended cruising?
The 405 Conquest sleeps up to seven people across multiple staterooms. The master stateroom features an island bed with 8-inch Premium Handcraft pillowtop mattress, gas-assist storage trunk, 8,000 BTU air-conditioning with reverse cycle, 24-inch HDTV with Apple TV, and cedar-lined hanging and shelf storage. The mid-berth cabin includes a 6-inch pillowtop mattress, powered access hatch for under-bed storage, cedar-lined hanging locker, and 16,000 BTU air-conditioning vents from the main cabin. Both staterooms have LED reading lights, RGB courtesy lighting with dimmer control, and USB receptacles. The enclosed head features a full-length shower with rain head and hand-held sprayer, dual entrances, and a Vacu-Flush toilet with holding tank and tank-level indication.
What premium audio and entertainment systems are integrated throughout the vessel?
The 405 Conquest features a comprehensive JL Audio integration with the Simrad navigation package, including a JL Audio MM105-HR stereo with custom digital signal processor tuned for audiophile performance. The helm deck has M6 7.7-inch coaxial speakers on port and starboard consoles, two additional speakers in the hardtop aft section, and an M6 10-inch subwoofer. The bow lounge includes M6 6.5-inch speakers, and the cockpit has two custom recessed M6 8.8-inch speakers. The main cabin features a 32-inch flat-screen LED HDTV with JL Audio MM50 stereo and C2-400X speakers, while the forward cabin has a 24-inch HDTV with Apple TV integration. All systems support AM/FM/HD Radio, Sirius Satellite Radio, Bluetooth 5.0, USB audio, and iPhone/Android connectivity.
How does the Seakeeper SK6 stabilization system improve comfort during offshore operation?
The Seakeeper SK6 gyroscopic stabilization system reduces hull roll and motion during cruising and at-rest conditions, significantly improving comfort for passengers in the cabin and cockpit during offshore passages. This system is particularly valuable when fishing in rough seas or during extended bluewater voyages where wave action would otherwise create fatigue and discomfort. The SK6 operates automatically and requires no operator input, providing consistent stabilization across a wide range of sea states and speeds.
What power generation and climate control systems support extended cruising and comfort?
The vessel is equipped with a 12-kilowatt Fischer Panda diesel generator operating at 240-V 60 Hz with automatic operation and manual override, plus a dedicated fire suppression system. This generator powers the 8,000 BTU reverse-cycle air-conditioning in the master stateroom and the 16,000 BTU unit serving the main cabin and mid-berth, maintaining comfortable interior temperatures during hot weather or overnight anchoring. The galley includes a single cooktop burner, a 3.0 cubic-foot 12-V/120-V refrigerator/freezer drawer, and a microwave in the overhead cabinet. A summer kitchen with Vitifrigo refrigerator and pull-out drawer storage provides additional galley functionality for entertaining or extended cruising.
What deck hardware and anchoring systems support safe handling and secure mooring?
The 405 Conquest features an anchor windlass with 400 feet of rode and chain, handheld remote control, stainless steel swivel, and a polished 44-pound anchor with stainless steel bow roller davit. The deck is equipped with 10-inch stainless steel cleats at the stern and bow, spring line cleats, and crosstie cleats at the transom for secure mooring. Heavy-duty rub rails with stainless steel inserts, welded stainless steel hand rails throughout, toe rails in the cockpit, and high bow rails provide structural integrity and crew safety. All hardware is 316-L stainless steel with a vinylester barrier coat applied over the entire hull and sides for corrosion protection. A Dyson V7 handheld vacuum with charging holder supports cabin maintenance during cruising.
What additional upgrades and protective coatings have been applied to this specific vessel?
This 2024 405 Conquest includes several notable upgrades beyond standard equipment. A Sionyx night vision camera enhances situational awareness during night operations. Starlink satellite internet provides reliable connectivity for communication and weather updates during offshore cruising. Gemlux outriggers extend fishing capability for trolling applications. A full ceramic coating was applied in June 2025, providing lasting UV protection and hydrophobic properties to the hull and topside surfaces, reducing maintenance requirements and preserving the finish during extended use. The vessel also features custom black acrylic dash integration and full side glass canvas covers for weather protection when at rest.

Fly Yachts is pleased to assist you in the purchase of this vessel. This boat is centrally listed by SI Yachts - Freeport Office. It is offered as a convenience by this broker/dealer to its clients and is not intended to convey direct representation of a particular vessel.

Similar yachts

More Boston Whaler yachts

See all Boston Whaler listings →

Editorial on Boston Whaler

Watch this boat

Not ready to talk yet? Leave your number — we'll personally alert you the moment the price moves or her status changes.

$1,175,000 Request a call
¿Habla español? (traducción automática)

Hablamos español

Déjenos su número y un broker de Fly Yachts le llamará — en español.