




2025 Boston Whaler 405 Conquest For Sale
Quincy, MA
·
Pre-owned
·
20 H
·
Available Now
Boat Type
Year
2025
Length
41.34 ft
Guests
4
Cabins
2
Drive Type
Outboard
HP / Engine
400 HP
Top Speed
45.5 KN
Fuel Type
Gas

Vessel Description
2025 Boston Whaler 405 Conquest for Sale in Quincy, MA
Cruising Boston Harbor just got an upgrade with the 2025 Boston Whaler 405 Conquest, finished in eye-catching Platinum and Black-Chrome Gray. Four powerful Mercury 400 JPO V10 AMS engines provide the muscle for quick trips out to the Boston Harbor Islands or leisurely passes along the Charles River. The Seakeeper SK6 gyroscopic stabilizer ensures smooth sailing, no matter the sea conditions, while the onboard diesel generator guarantees comfort and convenience on longer journeys.
Navigation is effortless and confidence-inspiring. The helm features triple Simrad NSO displays (16", 19", and 24"), a Vessel View Mobile Automatic ID system, Open Array Radar, and FLIR M332 Thermal Night Vision, making foggy mornings or busy marinas near Logan Airport a breeze. The cockpit rear view camera and satellite weather and radio keep you fully aware and connected as you pass by iconic landmarks like the Zakim Bridge or dock in the North End.
On deck, you’ll find luxurious spaces designed for entertaining and relaxing. Enjoy a sheltered conversation thanks to full-height side glass with pop and slide openings, or break out the refreshments at the starboard helm deck wet bar while friends lounge on the foldout bench seat. Mesh windshield shades, a bow sunshade, and a teak aft cockpit table set the scene for summer gatherings, while LED and underwater lighting add drama and safety long after sunset.
Inside, comfort continues with a climate-controlled master stateroom, a modern VacuFlush head and shower, and amenities like a cockpit refrigerator and convenient cooktop. Whether outfitting for an overnight in Marblehead, a spirited afternoon chase past Castle Island, or an impromptu party with the premium audio system cranking your favorite playlist, this 405 Conquest turns everyday trips around Boston into unforgettable cruising adventures.
Technical Specifications
Country of Origin
United States (USA)
Vessel Designer
Boston Whaler
Boat Type
Hull Material
Fiberglass
Hull Number
405CQT0115
Guest Limit
4
Number of Cabins
2
Double Beds
2
Total Berths
4
Dry Head
1
Total Heads
1
4 x Mercury Verado 400 V10
Drive Type
Outboard
Horsepower per Engine
400 HP
Fuel Type
Gas
Port Outer engine hours
20 H
Port Inner engine hours
20 H
Starboard Outer engine hours
20 H
Starboard Inner engine hours
20 H
Top Speed
45.5 KN
Fuel Tank Capacity
620 gal
Number of Fuel Tanks
2
Fuel Tank Material
Stainless Steel
Fresh Water Tank
90 gal
Black Water Tank
30 gal
Waterline Length
34.94 ft
Overall Length
41.34 ft
Draft
2.5 ft
Dry Weight
22,400 lb
Beam
13.5 ft
Radar
Underwater Lights
Nightvision
Simrad
AIS
Generator
Air Conditioning
Anchor Electric
Stabilizer
Ask Waylo