Custom 1990 Boston Whaler 31 Offshore Experience a true one-of-a-kind vessel with this professionally customized 1990 Boston Whaler 31 Offshore. Expertly modified with a fiberglass hull extension stretching the length from 27 to 31 feet, this custom model delivers legendary unsinkable durability with a massive improvement in ride quality. Powered by Twin Mercury 350hp outboards mounted on jack plates, this boat provides exceptional power and offshore range, supported by fuel and water tanks that were fully replaced in 2011. Professional Command Center The custom enclosure offers superior all-weather protection, featuring premium STIDD helm chairs for maximum comfort. The helm is rigged for serious navigation, boasting hydraulic steering and electronic engine controls. The modernized electronics suite includes a SIMRAD Chartplotter, Depth Sounder, Radar, AIS, and Autopilot. For low-visibility conditions, the vessel is equipped with a FLIR infrared video camera and high-output floodlights. Deck Customization & Fishing The cockpit is engineered for serious angling and utility. It features a raised, flush deck floor and a custom enlarged 3-inch scupper drain system for rapid water evacuation. The gunwales feature custom riser extensions and built-in bait table receptacles. Storage is optimized with a custom lazarette pump room and Sea Freeze refrigerated fish boxes with a separate freezer. This complete package includes a custom-built Pederson trailer with a 35,000 lb capacity. Key Features: Twin Mercury 350hp Engines with Jack Plate Custom Fiberglass Hull Extension (31 ft) Sea Freeze Refrigeration & Freezer Custom Pederson Trailer Included 2020 new Simrad electronics added to both main and rear helm stations New radar Through hulls upgraded transducers with 3D structure scan GPS compass Auto Pilot FLIR camera Designed and built by local Bellingham Marine Contractors; BJ Fiberglass, Rasmussens Marine, Clearwater Marine, Radar Marine Electronics, Tanner Manufacturing, Gilmore Upholstery, and Harris Rail Works all who are recognized in the industry for their quality work and expertise. Repowered with Twin 2018 Mercury Verado 350HP engines with only 321 hours, 360 gallons of fuel, Fiber reinforced plastic Fiberglass Deep V Hull, Electronic Propulsion, Hydraulic Sea Star steering, and Diesel Heat this custom-built Boston Whaler will get you out to any offshore fishing grounds you want to go to and was specifically designed for use in Alaska. Recent survey by Cake Mathers Marine Survey LLC in May 2025 shows a $685,000 replacement value Contact us today to schedule a viewing of this uniquely capable offshore machine.