66 Offshore 2005 Boat for Sale

Double H Yacht | 66' Offshore 2005

2005 OFFSHORE YACHTS 66' PILOTHOUSE "DOUBLE H" — $1,250,000 — SEABROOK, TX

• Hydraulic bow AND stern thrusters plus new Yacht Controller wireless remote — true single-handed docking control from anywhere on deck
• Hauled, surveyed and sea-trialed October 2025 — fresh survey on file, fresh bottom anodes, ran flawlessly
• Twin Caterpillar C18s (1,000 HP each) — approx. 3,492 / 3,486 original hours, no rebuilds, service up to date; barely mid-life for these engines
• New Dometic air conditioning throughout — 9 units, every space independently cooled
• New Starlink high-speed internet with custom SeaView mount and router
• Two independent watermakers — true redundancy for extended cruising off the dock
• Upgraded Garmin electronics at both helm stations
• Wesmar active fin stabilizers — the softest ride on the water
• Twin Northern Lights generators (25 kW + 20 kW) — redundant power, service up to date
• Fully separate crew/fourth stateroom with en-suite head — guests and crew never cross paths
• Novurania tender with fully serviced 60 HP outboard INCLUDED
• Professionally maintained without deferred maintenance — premium JL Audio system with dedicated battery bank new 09/2025

DESCRIPTION

Renowned for delivering the softest ride on the water, this 2005 Offshore Yachts 66' Pilothouse "DOUBLE H" is a masterful blend of deep-sea capability and refined luxury. Built on a massive 19'3" beam, her exceptionally spacious three-stateroom layout plus fully separate crew quarters offers the volume and comfort of a much larger vessel. Combining a finely-veed hull design for superior rough-water tracking with a low center of gravity, she represents the pinnacle of safety and comfort for serious owner-operators. Step-aboard ready, professionally maintained without deferred maintenance, and heavily upgraded with premium modern equipment, she was hauled, surveyed and sea-trialed in October 2025 and is ready for immediate long-range cruising.

VESSEL WALKTHROUGH

Beginning aft, a unique sport cockpit with transom door leads up molded stairs to the fully covered "California style" aft deck with docking station. Through the sliding door, the saloon flows forward to the galley (port) and a private starboard stairway down to the full-beam master suite. Two steps up is the fully enclosed pilothouse with dinette; a forward stairway leads down to the VIP queen stateroom and the guest stateroom/office. Aft of the engine room — accessed via the watertight transom door — is a fully separate fourth stateroom/crew cabin with en-suite head. Full walk-around side decks with high bulwarks and port/starboard wing doors make line handling a breeze.

SALOON

Expansive, bright saloon with large framed perimeter windows, satin teak joinery with Carpathian Elm trim and crown molding, custom U-shaped sofa with storage surrounding an electric teak hi-lo table with expandable leaves, entertainment center with pop-up flat-screen TV, JL Audio integration, U-Line 15-bottle wine cooler, Roman shades, and seamless access to the covered aft deck.

PILOTHOUSE AND DINETTE

Fully enclosed pilothouse with centerline helm: teak wheel and excellent all-around visibility, two Pompanette Platinum Series helm chairs on stainless pedestals, upgraded Garmin electronics suite, Headhunter Tank Sentry monitoring for fuel/water/holding, chart locker and drawer, Sub-Zero under-counter refrigerator, teak-and-holly sole, port and starboard weathertight doors to the side decks. Wireless Yacht Controller remote gives total vessel command from anywhere on deck. Elevated L-shaped dinette settee with large teak table with swing-down leaf — comfortable dining with panoramic visibility.

GALLEY

On the saloon level to port with granite countertops and full-size household appliances: Miele 4-burner electric cooktop, GE oven, microwave with vent fan, GE Profile side-by-side refrigerator/freezer with teak doors and ice/water dispenser, dishwasher, trash compactor, garbage disposal, Kohler under-mounted sink with Grohe fixtures. Front-loading washer and dryer in the master vestibule. Three additional refrigeration units throughout — all serviced and operational.

MASTER STATEROOM

Full-beam midship owner's suite entered privately from the saloon: king-size centerline berth with upholstered headboard and storage beneath, two cedar-lined hanging closets, built-in vanity with granite top and stool, bureau and dresser drawers, overhead safety escape hatch. En-suite head to starboard: Tecma Silent Flush toilet, teak granite-topped vanity with under-mounted ceramic sink, oversized stall shower with frameless glass door, teak grate and granite seat, Newport Brass fixtures, teak sole.

VIP STATEROOM

Forward VIP with centerline queen island berth, storage drawers beneath, two cedar-lined hanging lockers, built-in vanity with mirror and sconce lighting, two overhead hatches plus port and starboard portlights. Adjacent guest/day head: Tecma Silent Flush toilet, teak granite-topped vanity, stall shower/mini-tub with frameless glass door, Newport Brass fixtures, teak sole.

GUEST STATEROOM / OFFICE

Versatile guest stateroom/office aft to port: Pullman berth with convertible upper and lower singles, built-in desk with Carpathian Elm top, bookshelves, LCD TV, double cedar-lined hanging locker.

CREW / FOURTH STATEROOM

Fourth stateroom aft of the engine room (crew or overflow guests): upper and lower single berths, teak vanity, hanging locker, storage cabinets, LCD TV, private en-suite head with Tecma toilet and stall shower, refrigerator and microwave in adjacent utility area.

FLYBRIDGE AND BOAT DECK

Updated upper Garmin helm station with two Pompanette cushioned helm chairs, Lexan venturi windshield with EZ2CY side enclosure under the fiberglass hardtop with recessed lighting, L-shaped settee with two granite hi-lo tables, starboard cabinet with sink, Isotherm refrigerator and storage, Raritan icemaker, integrated JL Audio speakers, and large boat deck with Steelhead ST1800 hydraulic davit (telescoping boom) serving the included Novurania 60 HP tender.

AFT DECK AND COCKPIT

Fully covered "California style" aft deck: molded settee with Sunbrella cushions, two granite-topped hi-lo tables, wet bar with covered sink and Isotherm refrigerator, full aft docking station with engine/thruster controls and rudder indicator, storage cabinets with lazarette/engine room access, varnished teak cap rail, overhead speakers and floodlights. Below, a unique sport cockpit at water level with transom door: built-in stainless swim ladder folding into its own locker, freshwater handheld shower and washdown, rod holders and 6-rod storage rack, stainless pop-up cleats, camera.

DECKS AND GROUND TACKLE

Working decks built for shorthanded cruising — high bulwarks, boarding doors, and three-station anchoring control.

• Maxwell 24V 3,500 lb windlass with 3-station control
• 110 lb anchor with approx. 200' of 3/8" chain; provision and rollers for second anchor
• Fresh and saltwater bow washdowns
• Port and starboard bulwark boarding doors; full walk-around decks
• Manship hatches with Ocean Air screens/shades; (10) stainless portlights
• 316 stainless hardware and 1-1/4" rails throughout
• New Wave 6-step boarding stairs
• Buell trumpet air horns; ACR remote searchlight; Cantalupi deck lighting

ELECTRONICS

Modern Garmin navigation at both stations, backed by offshore-grade communications.

• (2) Garmin 7616 16" MFDs; (1) Garmin 8616 16" MFD
• Garmin GHC20 autopilot (both stations)
• Garmin XHD2 74NM radar
• Furuno FA150 AIS Class A transponder
• (2) Icom IC-M602 VHF; Icom IC-M802 SSB
• KVH TracVision satellite TV
• New Starlink internet with custom SeaView mount and router
• (2) Caterpillar Marine Power Displays per station

ELECTRICAL SYSTEM

Redundant power generation and charging built for extended time off the dock.

• Twin Northern Lights generators — 25 kW + 20 kW, approx. 6,204 hours (07/2026), service up to date
• Dual 240V/50A shore power via (2) Glendinning CM7 Cablemasters with 75' cords
• (2) ACME isolation transformers; (2) galvanic isolators
• Xantrex 3000W inverter/120A charger on (8) 8D AGM ship's-service bank
• (4) 8D AGM engine start batteries; (2) 8D house batteries
• Dedicated AGM stereo bank (new 09/2025) with ProNautic charger
• Phase Three 24V/40A and Charles 12V/20A chargers; Mastervolt 24V-12V converters
• Backlit AC/DC distribution panels with meters
• GFCI protection at deck, galley, heads, engine room and lazarette; central bonding system

MECHANICAL EQUIPMENT

Professionally maintained propulsion and systems, sea-trialed October 2025.

• Twin Caterpillar C18 diesels, 1,000 HP each — approx. 3,492 / 3,486 hours (07/14/2026), original, no rebuild history, service up to date
• Cold-started on demand and ran flawlessly on the October 2025 survey sea trial
• ZF 550A reduction gears (2.517:1); Twin Disc electronic controls with 50' remote
• 3" Aquamet 22 stainless shafts; Tides dripless seals with dual cooling lines
• (2) Nibral 4-blade 42" x 31" propellers; stainless hydrodynamic rudders
• Hynautic power steering; Bennett 54" trim tabs
• Wesmar 9-sq-ft roll-fin stabilizers
• Wesmar 25 HP hydraulic bow AND stern thrusters (PTO-driven)
• (2) independent watermakers for true redundancy (primary: Village Marine Tec 1200 GPD; freshwater polishing system)
• Dual Racor 1000 fuel filtration per engine with vacuum gauges; Racor 500 per generator
• Fuel manifold with Reverso transfer pump and fuel polishing system; Reverso oil-change system
• (5) Rule 1500 GPH automatic bilge pumps plus Whale manual emergency pump
• High-water alarm at pilothouse; gate valves at watertight bulkheads

ENGINE ROOM

A thoughtfully designed machinery space with stand-up access to every system.

• Plumbed for engine room air conditioning (unit currently removed)
• White perforated aluminum liner; polished stainless engine beds
• Delta T air intake system with (4) blowers
• Groco strainers and safety seacocks at all raw-water intakes; mains plumbed for emergency bilge use
• (2) engine room cameras
• Start/stop panels with manual gauges
• Freshwater washdown; emergency steering tiller
• Stainless drip pans beneath generators
• Watertight transom door access plus aft-deck hatch

HULL AND CONSTRUCTION

Hand-laminated to ABS specs: solid glass below the waterline for maximum strength and osmosis protection; vacuum-bagged Core Cell coring above. Finely-veed deep forefoot tapering to 12-degree transom deadrise with long shallow keel — quick to plane, gentle easy motion. Structural laminated rub rails capped in stainless. Full epoxy barrier coat with active antifouling (approx. 2.5 yrs), fresh anodes 10/2025, cutless bearings excellent, crash bulkhead forward and four-section compartmentalized bilge.

ADDITIONAL EQUIPMENT

New Dometic marine A/C systems (9 units: 4 x 12,000 BTU + 5 x 16,000 BTU). Yacht Controller wireless docking remote (new). JL Audio premium sound system throughout with dedicated battery bank (new 09/2025). (3) underwater lights. 24V remote spotlight. Fixed FE241 fire suppression with engine shutdown (serviced 01/2025) and (7) ABC extinguishers (serviced 01/2025). CO alarms in every cabin. Lazarette utility area with stainless-topped workstation, Craftsman tool chest, Franke sink, microwave and Isotherm refrigerator.

EXCLUSIONS

Owner's personal effects. (Novurania tender and 60 HP outboard are INCLUDED in the sale.)

BROKER'S REMARKS

Hauled, surveyed and sea-trialed October 2025 — recent survey on file, summary available to serious buyers upon request. Professionally maintained without deferred maintenance. Third-time offering of a proven, continuously upgraded hull. Shown by appointment.

SPECIFICATIONS

LOA: 66' 06"
Beam: 19' 03"
Draft: 5' 09"
Displacement: 120,000 lbs (empty)
Engines: Twin Caterpillar C18 diesels, 1,000 HP each @ 2300 RPM
Engine Hours: approx. 3,492 port / 3,486 stbd (07/14/2026)
Engine Serials: Port CKH00612 / Stbd CKH00811
Transmissions: ZF 550A, 2.517:1
Generators: Twin Northern Lights, 25 kW + 20 kW, approx. 6,204 hours
Cruise Speed: 9.3 knots @ 1750 RPM
Max Speed: 17.7 knots (sea trial, October 2025)
Fuel: 1,800 US gallons (3 aluminum tanks)
Water: 600 US gallons (3 fiberglass tanks)
Holding: 240 US gallons
Staterooms: 3 plus crew quarters | Sleeps 6 guests + 2 crew
Heads: 3 (master en-suite, guest/day, crew en-suite)
Hull ID: OSH66015E505
USCG Official Number: 1233137
Location: Lakewood Yacht Club, Seabrook, TX

Denison Yachting - San Francisco is pleased to assist you in the purchase of this vessel. This boat is centrally listed by Yachts360.

Denison Yacht Sales offers the details of this yacht in good faith but can’t guarantee the accuracy of this information nor warrant the condition of this boat for sale. This yacht for sale is offered subject to prior sale, price change, or withdrawal from that yacht market without notice. She is offered as a convenience by this yacht broker to its clients and is not intended to convey direct representation of a specific yacht for sale.