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Description
Condition: Used – good
1999 Duckworth Magnum 21’ Inboard Jet Sled
• Price: $35,500
• Location: Oroville (North Central Washington)
• Hours: 278.6 Original Hours
• Engine: Ford 351 Redline V8 Marine (EFI)
• Jet Drive: American Turbine
The Lexus LX470 of Heavy-Plate Aluminum Boats
Video Overview (walk around, running) https://youtu.be/NDnntYrLi3M
If you know Duckworth, you know what this is: heavy-gauge welded aluminum construction, aircraft-grade structural integrity, and bulletproof reliability. It delivers serious river and lake capability without sacrificing refined cabin comfort.
This boat has been well cared for in our family since 2008 (purchased at 113.8 hours) and stored under cover in the dry Eastern Washington climate ever since. It was never a commercial guide boat, never abused in whitewater, and remains in remarkably clean, unmodified condition. Used strictly for fishing, family cruising, and camping trips. Owner is stepping back from running it due to age, and it’s time to pass it on to a new owner who appreciates a well-preserved Pacific Northwest classic.
Factory Dimensions & Specs
• Beam: 102” wide beam for maximum stability and deck space
• Bottom Width: 78” heavy-gauge aluminum bottom
• Side Height: Tall 36” sides for high freeboard, safety, and dry rides in big water
• Fuel Tank: 60-gallon capacity
Powertrain & Mechanicals
• Primary Power: Ford 351 Redline V8 Marine engine with Electronic Fuel Injection (EFI) driving an American Turbine jet pump. Instant cold starts, smooth power delivery, and low total hours (278.6 hrs). New plugs in 2026
• Kicker Motor: Suzuki 9.9 HP 4-stroke electric start outboard for trolling (impeller 2026)
• Controls & Setup: Foot throttle, dual battery system (recent batteries)
• Trailering: Spec-built tandem-axle trailer with electric jack, electric winch, chrome wheels, Bearing Buddies, and 2-year-old low-mileage tires (plus spare), new waterproof 7-pin connector
Hull & Cosmetic Condition
• Mirror-Polished Aluminum Finish: The unpainted aluminum lower hull and bow section have been meticulously hand-polished to a true mirror reflection.
• Hull Structure: Outstanding condition—no structural repairs, gouges, or bottom damage.
• Paint & Interior: Factory top paint presents very well with only minor cosmetic chipping expected for its age. Interior carpet shows minor light wear/stains consistent with age, and there is one small section of cover vinyl that needs a minor patch.
• Water History: Minimal saltwater use; always flushed thoroughly in fresh water prior to covered storage.
Cabin Comfort & Interior Layout
• Seating: Dual Mariner/suspension front seats with folding armrests for smooth rides in rough water.
• Convertible Layout: Rear seating transforms into a sleeper bed with a stowable/collapsible cabin table.
• All-Weather Protection: Full enclosure with clear eisenglass windows, see-through rear curtain, and cabin air blower.
• Amenities: Integrated RV toilet/Porta-potti, walk-through windshield, Sony audio system, and generous storage throughout. Plumbed for heater.
Rigged for Fishing & Family Watersports
• Dual electric Scotty downriggers
• Electric front anchor winch + rear 50 lb. lead hand anchor
• Livewell & bilge pump system
• Factory ski/tubing tow bar
• Includes 4 inflatable large boat fenders, rod holders, 4 flotation jackets, and a few spare parts
Full Transparency & Buyer Inspection
We want the buyer to know exactly what they’re getting before making a drive. We are happy to do a live FaceTime or other video walkthrough to show every detail of the boat, motor, trailer, and cosmetic condition up close prior to an in-person visit.
Asking $35,500. Serious inquiries only.
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Specifications
Year1999
MakeDuckworth Magnum 21’ Aluminum Jet Sled
ModelMagnum 21 Inboard Jet Sled
TypePowerboat
ConditionGood
Length21 ft
Engine
Engine TypeINBOARD
Engine MakeFord
Engine ModelRedline V8 Marine
Fuel TypeGASOLINE
$35,500
1999 Duckworth Magnum 21’ Aluminum Jet Sled
Oroville, WA
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