2005 Boston Whaler 305 Conquest - Boston Whaler FOR SALE

Fresh to market with updated photography from July 2025 and simple to preview, this 2005 Boston Whaler 305 Conquest presents as a refined express cruiser and offshore walkaround sportfish that is genuinely turn‑key. A motivated seller—having just moved into an RV—has kept this lift‑stored, meticulously serviced, and extensively updated vessel ready for immediate enjoyment, complete with newer cushions and a factory‑rebuilt Kabata 6 kW diesel generator showing under two hours. Blending Boston Whaler’s “unsinkable” heritage with modern comforts, this premium power yacht balances performance, reliability, and elegant finishes for serious anglers and discerning weekend cruisers alike.

Measuring 30’5” in length with an 11’ beam and a shallow 2’4” draft, the 305 Conquest delivers confident handling and excellent seakeeping. Twin Mercury 250 HP Verado outboards with approximately 850 hours provide spirited acceleration and a top end in the 32–33 knot range, while the fiberglass hull wears fresh black bottom paint for a crisp, ready‑to‑go profile. Fresh and raw water systems are onboard for versatility at the dock or offshore, and the redesigned helm on the raised bridge deck offers superb sightlines and intuitive ergonomics. A companion lounge opposite the helm seats two comfortably, creating a sociable command area under the standard hardtop.

Purpose‑built for bluewater pursuits, the cockpit is thoughtfully arranged with generous rod storage under the gunwales and in the cabin, a 24‑gallon transom livewell, a dedicated rigging station, and two insulated in‑deck fish boxes with pump‑outs. A large service hatch in the sole grants exceptional access to the bilge, underscoring the model’s reputation for smart engineering. At day’s end, a hideaway bench pulls from the transom, wide side decks make movement secure, and a bow pulpit adds utility and confidence at anchor.

Below, the cabin welcomes four overnight guests in a forward V‑berth and a mid‑cabin double, making this a polished cabin cruiser and capable weekender. The galley is trimmed in rich cherry joinery with stone‑look counters, pairing durability with a yacht‑class aesthetic. With its combination of offshore fishing prowess, express sportfish agility, and cruising comfort, this 305 Conquest stands out as a premium walkaround, sportfishing yacht, and family cruiser—fully prepared for your next run to the horizon.

Description

New to market with latest photos as of July 2025 and genuinely easy to see, this 2005 Boston Whaler 305 Conquest is a standout example of the unsinkable legend—extensively upgraded, meticulously maintained, and truly turn‑key. With less than 2 hours on the factory‑rebuilt Kabata diesel generator (6 kW) and newer cushions, the owner says sell—having just purchased an RV—and the boat is poised for immediate enjoyment. Lift‑kept all its life, the boat presents a fresh black bottom paint and the confidence that comes with professional care, modernized systems, and a deep list of thoughtful improvements.

Core particulars underscore its balance of performance and comfort: LOA 30’5”, beam 11’0”, and draft 2’4”. Power comes from twin Mercury 250 HP Verado outboards with 850 hours, complemented by the factory‑rebuilt 6 kW Kabata diesel generator. Fuel: Diesel for the generator, with gasoline outboards. Water: fresh and raw water systems. Hull: fiberglass with new black bottom paint. The 305 Conquest refines the acclaimed 295 with a larger cockpit, updated interior, and redesigned helm and transom, answering the call of serious anglers who demand quality without compromise.

Fishing amenities are comprehensive: abundant rod storage under the gunwales and in the cabin; a 24‑gallon transom livewell; a cockpit rigging station; two insulated in‑deck fish boxes with pump‑outs; and an enormous sole hatch granting unprecedented access to the bilge. From the raised bridge deck, visibility is excellent, and a companion lounge opposite the helm seats two in comfort. Below, the layout sleeps four adults—two in the forward V‑berth and two in the mid‑cabin double—while the galley is elevated by cherrywood cabinetry and faux‑granite counters. Additional features include a bow pulpit, wide side decks, and a hideaway transom bench seat, with a robust hardtop fitted as standard. No lightweight, twin outboards will deliver a top speed of 32–33, all while preserving the Boston Whaler hallmark of confidence in any water.

Mechanical & power systems

The mechanical suite has been renewed to inspire confidence offshore. A factory‑rebuilt Kabata diesel generator (6 kW) provides efficient, quiet ship’s power. The propulsion system benefits from a new engine tilt motor and a new engine trim motor, while steering precision is ensured by four new hydraulic cylinders paired with all new hydraulic lines. Horizontal steering cylinders were replaced within the last 5 years, and a new hydraulic steering pump at the helm delivers a smooth, one‑finger feel. Both Mercury outboards have been fully serviced—upper and lower—with Mercury computer diagnostic testing verifying health and performance. Freshly painted engine cowlings wear crisp Mercury decals, and new bronze engine cover latches with new cables add durability and a satisfying, secure close.

Electrical & batteries

Power delivery and illumination have been modernized for reliability and comfort. Four new batteries are managed by a new digital battery charger for fast, intelligent charging. New overhead LED lighting brightens both cockpit and cabin with cool, efficient brilliance. A new GPS antenna sharpens positioning, while a new front window vent motor restores welcome airflow at the touch of a switch.

Hull & exterior

The exterior presents as purpose‑built and ready to fish. Fresh black bottom paint underscores lift‑kept care, complemented by all new zincs; the boat has never bottom‑sat. Taco outriggers pair with extra Boston Whaler rod holders for a total of 9, expanding spread and storage. A downrigger swivel is prewired with two 110V plugs, one per side, making deep presentations effortless. A high‑pressure MIST system delivers refreshing cooling on hot days, and a new stainless‑steel stern shower handle adds a refined finishing touch to post‑swim rinse‑offs.

Plumbing & pumps

The freshwater and washdown experience has been comprehensively renewed with new fresh water and raw water pumps. Throughout the bilge, new bilge pumps and float switches enhance safety with immediate, automatic response. In the head, a new stainless shower/faucet combo elevates both look and function, while a new shower sump drain pump and float switch keep the pan dry and the space shipshape.

Electronics & navigation

Integrated helm electronics are tuned for clarity and control. The Raymarine radar has been rebuilt for crisp target return, and the Raymarine plotter/fishfinder is likewise rebuilt with a new data card for current cartography and soundings. A new Garmin autopilot head streamlines precise course‑keeping, while Mercury Vessel View—rebuilt—and Vessel View Mobile enable comprehensive engine data and seamless smartphone integration.

Interior & comfort

On deck and below, comfort has been quietly elevated. New seat covers and fresh coaming pads renew the touchpoints you notice first, while a newer windlass and refrigerator add everyday ease for anchoring and provisioning. Visibility in all weather benefits from two new windshield wiper systems, including new motors, arms, and blades for reliable, streak‑free sweeps.

Additional features

This lift‑kept vessel has never bottom‑sat and reflects the consistency of professional servicing and maintenance throughout. It is genuinely turn‑key—ready for inspection today and for immediate enjoyment the moment you step aboard.

Features

The specification is reassuringly complete. Electrical equipment includes a shore power inlet for reliable dockside service. Electronics encompass a depthsounder, a precision compass, GPS, cockpit speakers for clear audio underway, and a VHF for crisp communications. Inside equipment features an electric bilge pump, a proper marine head, and a battery charger to keep the house system topped up. Outside, comfortable cockpit cushions and a sturdy swimming ladder round out the essentials for long, happy days on the water.

Propulsion

Twin Mercury Verado outboards provide confident performance, each rated at 250 hp with 850 hours, in smooth, fuel‑efficient Outboard‑4S configuration and running on gas. The pairing delivers lively acceleration, composed cruising manners, and the redundancy discerning boaters appreciate offshore.

Specifications

Dimensions are purposeful and well‑balanced: a Length Overall of 30ft, a beam of 10.58ft for welcome stability, a Max Bridge Clearance of 9.08ft, a Max Draft of 1.67ft to reach skinny water, and a Freeboard of 2.33ft for a drier, safer ride. Dry Weight is 8,500 lb, delivering a solid, confidence‑inspiring feel offshore. Seating Capacity is 14, the Hull Material is fiberglass, and the Hull Shape is a seaworthy Deep Vee. Tanks include a Fresh Water Tank and a Holding Tank for extended autonomy, with a Fuel Tank of 300 gal to stretch the horizon. Accommodations thoughtfully include a guest head to enhance comfort for all aboard.