The 2021 Boston Whaler 405 Conquest is a 40-foot fiberglass walkaround powered by quad Mercury Verado V6 engines producing 1,600 horsepower. The boat reaches speeds up to 47 knots and cruises at 28 knots, delivering both offshore capability and refined comfort across a versatile layout suited to extended cruising, overnight travel, and entertaining.
The helm features a joystick control system integrated with dual Raymarine Axiom XL displays—a 19-inch and 24-inch screen—for navigation and systems management. The cabin accommodates multiple guests with sleeping quarters, while the open deck flows from a spacious bow lounge through an ultra-convertible helm companion zone to an aft cockpit. Amenities include an aft cockpit table, fold-out bench seating to starboard, full side glazing, a bow sunshade, and canvas mesh windshield shades for weather protection.
Equipment includes a gyroscope stabilizer system, outriggers, a windlass, underwater lighting, premium audio, a diesel generator, watermaker, and refrigerated cooler. An engine flush system simplifies maintenance. The boat is finished with a rosewood interior package and platinum-grade hull construction.
Length
40.00 FT
Beam
13.50 FT
Weight
22,400 LBS
Material
Fiberglass
Shape
Modified-V
Heads
1
Engines
4
Engine Make
Mercury
Engine Model
Verado V6
Power
4 x NaN HP
Hours
170 HRS
Fuel
Gasoline
Cruising Speed
27.81 KTS
Max Speed
46.92 KTS
Range
225.93 NM
Fuel
620 GAL
Water
90 GAL