Expert Review, Technical Specifications & Market Analysis
| Feature | Specifications |
|---|---|
| Overall Length | 42' 6" |
| Beam | 13' 0" |
| Draft | 31" |
| Displacement | 22,000 lbs |
| Engines | Standard: Quad 300-HP V8 Mercury Verado (1,200 HP); Optional: Quad 400-HP V10, Triple 600-HP V12 (max 1,800 HP) |
| Fuel Capacity | 700 gallons |
| Water Capacity | 60 gallons |
| Cabins / Heads | 1 convertible double berth plus convertible pull-out settee; 1 enclosed head with electric VacuFlush toilet and rain shower head |
| Max Speed | Not published by Boston Whaler |
| Cruise Speed | Not published by Boston Whaler |
Source: Spec & Photos courtesy of Boston Whaler. Specs verified by Tony Smith, USCG 100 Ton Master, on August 10, 2026.
Part of the Boston Whaler Outrage series — see how owners step up through the lineup.
The 420 Outrage represents the apex of what Boston Whaler does well. The Unibond construction is proven, the ride is predictable, and the build quality is consistent. The triple 600 V12 package is the right call. It delivers the range and performance this hull deserves, and the Joystick Piloting system is genuinely useful for single-handed operation. The cabin is the best in class. It's not just livable, it's comfortable. That matters when you're 50 miles offshore and the weather turns.
This boat is for the experienced owner-operator who wants to run their own program. If you're coming from a 38-foot center console and you're tired of range anxiety, cramped cabins, and compromised layouts, the 420 solves those problems. If you're looking for a boat to impress the dock or win poker runs, this isn't it. The 420 is a tool, not a trophy. It's built for people who actually use their boats.
Resale is strong. Boston Whaler holds value better than most builders in this segment, and the 420 is the flagship. Maintenance costs are predictable. The Mercury V12s are new, but early reports are positive. Expect $60,000 to $80,000 per year in total ownership costs if you're running 100 hours. That's real money, but it's also owner-operator money. You're not paying crew, and you're not paying for a full-service marina. The 420 is designed to be run by one competent person or two people with ease. If that's your program, this is the boat..
Video courtesy of Boston Whaler.
Photos courtesy of Boston Whaler.
Boston Whaler rates the 420 Outrage from 1,200 to 1,800 horsepower, with a maximum engine weight of 3,400 pounds. That means triple or quad outboards, and the weight ceiling is often the real limit once you start comparing packages, because the biggest V12s are heavy.
The boat needs the power. Dry weight is 22,000 pounds and 29,500 pounds loaded with engines, fuel and water, making this the heaviest boat in the Outrage line. Boston Whaler publishes no speed figures for the 420, and the numbers circulating online are generated estimates rather than tested results, so we will not repeat one. Judge the packages on redundancy and torque instead: with four engines you can lose one a long way out and still run home on plane.
The 420 Outrage carries 700 gallons of fuel, the largest tank in the Outrage line and more than double the 300 gallons on the 330 Outrage. Water is 60 gallons and the waste tank holds 20. Boston Whaler publishes no consumption figures, so treat any range number you see as an estimate.
What 700 gallons actually buys is planning freedom. A Florida-to-Bahamas crossing, a week working the islands, and the run home stop being a fuel exercise. It also means you can carry a full load and still hold reserve, which matters when the return leg is into weather. Loaded with engines and fluids the boat weighs 29,500 pounds, and that mass is part of why it keeps its speed as the sea builds.
Choose the 420 Outrage for fishing and open deck; choose the 405 Conquest for time aboard. They are close in size — 42 feet 6 inches by 13 feet against 41 feet 4 inches by 13 feet 6 inches — carry 20 people each, and share the same 1,200 to 1,800 horsepower rating. Everything else follows from console versus cabin.
The 420 carries 700 gallons of fuel to the Conquest's 620, drafts 31 inches against 30, and has a 40-gallon livewell against 19. The Conquest carries 90 gallons of water to the Outrage's 60 and adds a private master stateroom, a mid-berth for three, and an enclosed head with a separate shower. Loaded weights are close: 29,500 pounds against 30,360. Answer the accommodation question first and the rest resolves itself.
Yes, comfortably for a couple or a small family. The 420 Outrage has a convertible double berth plus a convertible pull-out settee below, and an enclosed head with a VacuFlush system and a rain shower. Water capacity is 60 gallons and the waste tank holds 20 gallons, the largest waste capacity in the Outrage line.
It is still a center console, so the accommodation lives under the deck and the boat is organised around fishing and running rather than staying put. For a night or two after a long offshore day it works well. If nights aboard are the main event, look at the 405 Conquest: similar size at 41 feet 4 inches, but with a private master stateroom, a mid-berth for three, and 90 gallons of water.
Twenty — the highest capacity Boston Whaler rates in the current line, matched only by the 405 Conquest. The 13-foot beam is what makes that number real rather than theoretical. It is the widest hull in the Outrage series, and the deck space does not disappear when the boat fills up.
Realistically you will not run 20 people offshore. But the rating tells you what the boat absorbs on a sandbar day or a dock party, and 20 people alongside a 40-gallon livewell and a 20-gallon waste tank is a boat that hosts without improvising. Loaded it weighs 29,500 pounds against a 22,000-pound dry figure, so it carries the load without changing character.
The 420 Outrage is the largest center console Boston Whaler builds: 42 feet 6 inches long, 13 feet of beam, 700 gallons of fuel, capacity for 20 people, and an engine rating of 1,200 to 1,800 horsepower. Below deck there is a convertible double berth, a convertible pull-out settee, and an enclosed head with a rain shower.
It is a boat for owners who run long offshore legs with a crowd aboard and want Outrage deck space without giving anything up. Dry weight is 22,000 pounds and 29,500 pounds loaded. If that is more boat than your slip or your season needs, the 380 Outrage does most of the same work at 38 feet and 14,500 pounds dry.
