2026 Boston Whaler 405 Conquest Boat in Miami, FL 33142 US

$1,145,703

New
builtBuilt in 2026
Year the boat was built
model

405 Conquest

Boat model
engine

1 Engine (--)

Engine type and count
length

40 feet

Overall boat length
fuel

Gas

Fuel type
material

Other

Hull material
Nominal Length
40ft
Hull Material
other
Engine 1
Fuel Type
gasoline
Engine Year
2026

Price History

DateEventPrice
6/5/26Price decreased$1,145,703(-21.1%)
5/8/26Price decreased$1,451,337(-1.0%)
2/26/26Initial price$1,466,214

Contact Jet Ski of Miami - Fisherman's Boat Group

3800 NW 27 Avenue, Miami, FL, 33142

Boston Whaler 405 Conquest: BoatTEST Review

Reviewed by Jeff Hammond

Boat Test Review on BoatTest.com

Overview

The Boston Whaler 405 Conquest represents the largest model in the Conquest lineup, designed with versatility in mind to accommodate families who enjoy both fishing and cruising. This model offers customizable features that cater to a dual-purpose lifestyle, blending comfort and functionality seamlessly.

Cockpit and Exterior Features

The cockpit of the 405 Conquest measures 11 feet 3 inches wide by 6 feet 6 inches fore and aft, offering a spacious and adaptable area. The standard layout includes a flip bench seat at the stern, while an optional summer kitchen replaces this with an electric grill, stainless steel rail, drawer-style refrigerator, sink, and multiple beverage holders. Storage is thoughtfully integrated, including dedicated spaces for a five-gallon bucket and cockpit tables, which Boston Whaler terms 'point-of-use storage.' For anglers, an optional aquarium live well can substitute the summer kitchen, with kitchen features relocated forward under the lounge. Additional fishing amenities include a 19-gallon live well in the aft port corner, rod holders, hawse pipes, racks for downrigger balls, and a first-in-class port side hull dive door with a heavy-duty stainless steel latch for hauling large fish or launching divers. The cockpit also features low-pressure glycol-filled cooling tubes for the 290-quart fish boxes, enhancing ice retention. Comfort and convenience are addressed with an optional 7-foot long sure shade, multiple rod holders on the hardtop, aft-facing lounge seats with beverage holders, a cooler with dual access, a pull-out shower, and wide passageways with secure rails leading to the foredeck. The foredeck itself boasts a 70-inch long by 58-inch wide sun pad with adjustable headrests, cup holders, grab rails, stereo speakers, and USB plugs.

Helm and Cockpit Galley

Access from the cockpit to the helm deck is facilitated by 9-inch tall steps with a 28-inch wide space between seats. The helm features a single-person seat that slides on a power base, with armrests and bolsters that fold up and a swivel function allowing the captain to engage socially when docked. The cockpit galley includes a Corian countertop, a single Kenyan burner, a sink with a fold-up faucet and removable cover, along with ample storage through drawers, cabinets, and a drawer-style refrigerator. The helm windshield is equipped with Boston Whaler's patented power vents and offers an optional full glass configuration. Additional features include overhead spreader lights, outrigger handles, speakers, courtesy lights, and a soft zipper pocket for storing the cockpit enclosure. An optional power skylight replaces standard hatches to enhance natural light.

Interior Living Spaces

The cabin provides six feet two inches of headroom and begins with a private bow stateroom, a highly requested feature in this size class. The sliding cabin hatch is uniquely designed with an articulating lower section to accommodate the hull's V-shape, a patented innovation by Boston Whaler. The bow berth, centered on the boat's axis, measures 80 inches long by 58 inches wide, with steps on either side. It includes adjustable head positioning for reclining to watch a 24-inch TV and stereo system located aft to port. Storage is abundant, with a cedar-lined hanging locker to starboard, a cedar-finished closet with shelves to port, and a large berth base that opens on gas struts for storing sizable items such as a life raft or luggage. A Dyson vacuum cleaner is standard and stored in the bow locker.

Heads and Additional Cabin Features

The private head compartment is accessible both from the master stateroom and the salon, featuring a separate shower area with a rainfall showerhead and a pull-up wand. The showerhead is designed to be recessed into the overhead in future models. The head also includes a vessel sink with Corian countertops, a skylight, and an opening port for ventilation. The salon area benefits from overhead skylights and hull-side windows that provide ample natural light. The dinette table folds to allow easy access and lowers to create additional sleeping space suitable for one adult or two children. Entertainment is supported by a stereo and a 32-inch TV, while controls for cooling, fish boxes, water maker, Sea Keeper, TV antenna gain, and air conditioning are discreetly housed behind overhead cabinet doors.

Galley and Aft Cabin

Located to port of the cabin steps, the galley is equipped with a single burner stove and a sink set in a Corian countertop, complemented by overhead storage and glass and beverage holders. Below the sink, an Isotherm refrigerator and a wastebasket are integrated. Above the galley, a cedar-lined locker offers additional storage with various shelves and compartments. The aft cabin features an 82 by 55 inch mattress that raises on a power assembly to reveal substantial storage beneath. Optional overhead racks can accommodate up to six fishing rods, enhancing the boat's utility for anglers.

Conclusion

The Boston Whaler 405 Conquest combines versatile cockpit and helm deck arrangements with comfortable and well-appointed interior accommodations, making it well-suited for family adventures on the water. Its thoughtful design caters equally to fishing enthusiasts and cruising families, while performance capabilities with Quad 400 Mercury outboards are detailed in a separate review. Overall, the 405 Conquest exemplifies Boston Whaler's commitment to quality, innovation, and multifunctional use.

Rating: 4.3 out of 5

Overview from around the web 2026 Boston Whaler 405 Conquest

Customers are praising the 2026 Boston Whaler 405 Conquest for its exceptional build quality and versatile design

Many highlight its spacious cockpit and comfortable seating, making it ideal for both fishing excursions and family outings. The boat's powerful performance and smooth handling receive frequent compliments, as does the advanced technology integrated throughout, enhancing navigation and safety. Reviewers also appreciate the ample storage and well-thought-out layout, which contribute to a seamless on-water experience. Overall, owners commend the 405 Conquest for combining luxury, functionality, and Boston Whaler’s renowned durability.

The Biggest Pros and Cons

The 2026 Boston Whaler 405 Conquest offers a blend of performance, luxury, and versatility, making it a standout choice for serious anglers and family cruisers alike. Here are some of the pros and cons to consider:

Pros

Exceptional Build Quality: True to Boston Whaler’s reputation, the 405 Conquest features a robust, unsinkable hull design, providing peace of mind and durability in various sea conditions.

Spacious Layout: The boat boasts a well-thought-out deck plan with ample seating, a large cockpit for fishing, and comfortable accommodations below deck, including a full galley and sleeping quarters.

Advanced Technology: Equipped with modern navigation and fish-finding electronics, the 405 Conquest enhances both safety and fishing efficiency.

Power and Performance: Powered by twin outboard engines, it delivers impressive speed and handling, making it suitable for offshore fishing trips and coastal cruising.

Versatility: The design suits a range of activities—from serious sportfishing to family outings—offering features like a large livewell, tackle storage, and a convertible seating area.

Cons

Price Point: As a premium, feature-rich vessel, the 405 Conquest comes with a higher price tag, which might be a consideration for budget-conscious buyers.

Size and Maneuverability: While spacious, the boat’s size may require more experience to handle effectively, especially in tight marina spaces.

Fuel Consumption: With powerful twin engines, fuel efficiency may be lower compared to smaller or less powerful boats, leading to higher operating costs.

Limited Trailerability: Due to its size and weight, the 405 Conquest is less suited for trailering, making it more practical for owners with marina or slip access.

Made For

The 2026 Boston Whaler 405 Conquest is designed for avid anglers and boating enthusiasts who demand unmatched performance, versatility, and luxury on the water. Ideal for serious offshore fishing trips, family outings, and extended cruising, this boat caters to those seeking a perfect blend of rugged durability and refined comfort. Whether you're targeting big game fish or enjoying a day with friends and family, the 405 Conquest offers advanced fishing features, spacious accommodations, and innovative design to meet the needs of passionate boaters who value quality and reliability.

Finance your dream boat!

Use our boat payment calculator to estimate monthly payments for 2026 Boston Whaler 405 Conquest. Enter your down payment, choose a loan term, and adjust the interest rate to see an instant payment estimate — ideal if you're calculating boat payments before you enquire. Wondering how much does a Dual Console cost in today's market, or how much does a Boston Whaler cost for similar models? This boat financing calculator helps you compare scenarios in seconds, whether you're considering used boat financing or a new purchase.
$
$
510152025
%
Principal Loan Amount$ 973,848
Total Payment$1,741,204.05
Monthly payment
$7,255.02/mo

Finance your dream boat!

Use our boat payment calculator to estimate monthly payments for 2026 Boston Whaler 405 Conquest. Enter your down payment, choose a loan term, and adjust the interest rate to see an instant payment estimate — ideal if you're calculating boat payments before you enquire. Wondering how much does a Dual Console cost in today's market, or how much does a Boston Whaler cost for similar models? This boat financing calculator helps you compare scenarios in seconds, whether you're considering used boat financing or a new purchase.
$
$
510152025
%
Principal Loan Amount$ 973,848
Total Payment$1,741,204.05
Monthly payment
$7,255.02/mo

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Price$1,145,703$1,073,800$1,299,999$949,900$1,550,000$625,000
LocationMiamiMiamiSaint PetersburgSarasotaFort PierceKey West
Nominal Length40'36'41'41'40'32'
Engine Make--MERCURYMERCURYMercuryMercury
Total Engine Power--400 hp600 hp600 hp400 hp
Days on Market358358231021425161
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Miami, FL 33142

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