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2025 Boston Whaler 405 Conquest Sold Boat in Quincy, MA 02169 US

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builtBuilt in 2025
Year the boat was built
model

405 Conquest

Boat model
engine

4 Engines (4x MERCURY)

Engine type and count
length

40 feet

Overall boat length
fuel

Gas

Fuel type
material

Fiberglass/Reinforced

Hull material

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The Image of Boston Whaler 405 Conquest 2025 - 02025 Boston Whaler 405 Conquest
PricePrice on requestPrice on requestPrice on request$21,991$22,500$67,195
LocationQuincyDanversSouth DartmouthQuincyDanversQuincy
Nominal Length40'15'28'17'13'23'
Engine MakeMERCURYMERCURYMercuryMERCURY--
Total Engine Power400 hp60 hp200 hp90 hp--
Days on Market689562903527
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Other 2025 Boston Whaler 405 Conquest For Sale in Massachusetts, United States

Nominal Length
40ft
Length Overall
40ft
Beam
13.5ft
Deadrise At Transom
19deg
Dry Weight
22000lb
Heads
1
Fresh Water Tanks
90gal
Fuel Tanks
600gal
Holding Tanks
30gal
Electrical Circuit
none
Hull Material
fiberglass
Hull Shape
other
Engine 1
Engine Make
MERCURY
Engine Model
400 JPO VDO V10 AMS
Total Power
400hp
Engine Type
outboard
Fuel Type
gasoline
Drive Type
other
Engine 2
Engine Make
MERCURY
Engine Model
400 JPO VDO V10 AMS
Total Power
400hp
Engine Type
outboard
Fuel Type
gasoline
Engine 3
Engine Make
MERCURY
Engine Model
400 JPO VDO V10 AMS
Total Power
400hp
Engine Type
outboard
Fuel Type
gasoline
Engine 4
Engine Make
MERCURY
Engine Model
400 JPO VDO V10 AMS
Total Power
400hp
Engine Type
outboard
Fuel Type
gasoline

Videos from MarineMax Boston on this 2025 Boston Whaler 405 Conquest

Contact MarineMax Boston

64 Washington Court, Bay Pointe Marina, Quincy, MA, 02169

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 2025 Boston Whaler 405 Conquest

Customers have been praising the 2025 Boston Whaler 405 Conquest for its remarkable blend of performance, comfort, and versatility

Many have highlighted its spacious and thoughtfully designed cabin, which provides ample room for family and friends, making it ideal for both day trips and extended overnight stays. The boat's advanced technology and intuitive controls have received positive feedback, as they simplify navigation and enhance the overall boating experience. Users especially appreciate the impressive fuel efficiency and smooth handling, which make it a pleasure to operate both in coastal waters and offshore. Additionally, the high-quality construction and sturdy materials have impressed boaters, with many noting the durability and reliability expected from the Boston Whaler brand. The innovative features, such as ample storage, a well-equipped galley, and luxurious seating, further add to the overall appeal. Overall, the 2025 Boston Whaler 405 Conquest has garnered a loyal following among boating enthusiasts, who value its performance, comfort, and the ability to create memorable adventures on the water.

The Biggest Pros and Cons

Pros

Versatile Design: The 405 Conquest is designed for both fishing and family cruising, offering plenty of space and amenities for various activities.

Exceptional Stability: Known for its stable ride, the patented Unibond construction offers a smooth and comfortable experience even in choppy waters.

Advanced Technology: Equipped with the latest navigation and fish-finding technology, the 405 ensures you have all the tools needed for successful outings.

Spacious Cabin: The thoughtfully designed cabin features ample headroom and comfortable sleeping arrangements, making it ideal for weekends on the water.

Quality Construction: Built with high-quality materials and craftsmanship, the boat provides durability and longevity typically associated with Boston Whaler products.

Ample Storage: An abundance of storage options allows for easy organization of gear and supplies, enhancing your overall boating experience.

Powerful Performance: The boat comes with powerful engine options, ensuring that speed and responsiveness are never compromised.

Cons

Price Point: The Boston Whaler 405 Conquest is a premium vessel, which can put it out of reach for some buyers looking for more budget-friendly options.

Size: While its size offers many advantages, it may be more challenging to maneuver in tight spaces or for first-time boaters.

Fuel Consumption: Larger boats often consume more fuel, which can lead to higher operational costs over time.

Maintenance Requirements: Like all boats, it requires regular maintenance to keep it in top condition, which can be time-consuming and costly.

Weight: Its substantial weight may limit the towing options for some vehicles, making transportation potentially less convenient for some boaters.

Made For

The 2025 Boston Whaler 405 Conquest is designed for avid boaters who seek a perfect blend of luxury, performance, and versatility. Whether you're an experienced angler looking for the ultimate fishing platform, a family seeking adventure on the open water, or a weekend warrior wanting to explore coastal destinations, this vessel caters to your needs. With its spacious cockpit and advanced fishing features, the 405 Conquest is ideal for those passionate about sports fishing. At the same time, its elegant cabin and comfortable galley make it perfect for families and friends, offering a cozy retreat after a day on the water. Additionally, the 405 Conquest appeals to cruising enthusiasts who value high-quality craftsmanship and innovative technology, ensuring a smooth, enjoyable ride. From the novice boater to the seasoned mariner, the 2025 Boston Whaler 405 Conquest invites you to create unforgettable memories on the water, embodying the spirit of adventure and freedom that boating represents.

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Address

64 Washington Court
Bay Pointe Marina
Quincy, MA 02169

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