• Slide: The Image of 1984 Duffy 20 Hardtop Diesel boat docked in a marina. - 1The Image of 1984 Duffy 20 Hardtop Diesel boat docked in a marina. - 1
  • Slide: The Image of 1984 Duffy 20 Hardtop Diesel boat with wooden cabin docked at marina. - 2The Image of 1984 Duffy 20 Hardtop Diesel boat with wooden cabin docked at marina. - 2
  • Slide: The Image of Bow of 1984 Duffy 20 Hardtop Diesel boat docked in green water. - 3The Image of Bow of 1984 Duffy 20 Hardtop Diesel boat docked in green water. - 3
  • Slide: The Image of Interior of a 1984 Duffy 20 Hardtop Diesel boat with wooden helm and seating. - 4The Image of Interior of a 1984 Duffy 20 Hardtop Diesel boat with wooden helm and seating. - 4
  • Slide: The Image of 1984 Duffy 20 Hardtop Diesel boat docked, interior view with steering wheel and seating. - 5The Image of 1984 Duffy 20 Hardtop Diesel boat docked, interior view with steering wheel and seating. - 5
  • Slide: The Image of 1984 Duffy 20 Hardtop Diesel boat with white seating and wooden interior. - 6The Image of 1984 Duffy 20 Hardtop Diesel boat with white seating and wooden interior. - 6
  • Slide: The Image of 1984 Duffy 20 Hardtop Diesel engine compartment with visible components. - 7The Image of 1984 Duffy 20 Hardtop Diesel engine compartment with visible components. - 7
  • Slide: The Image of 1984 Duffy 20 Hardtop Diesel boat with white seating and wooden helm. - 8The Image of 1984 Duffy 20 Hardtop Diesel boat with white seating and wooden helm. - 8
  • Slide: The Image of 1984 Duffy 20 Hardtop Diesel boat interior with white seating and wooden helm. - 9The Image of 1984 Duffy 20 Hardtop Diesel boat interior with white seating and wooden helm. - 9
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1984 Duffy 20 Hardtop Diesel

$19,500

Used

Boat in Newport Beach, CA 92663 US

builtBuilt in 1984
Year the boat was built
model

20 Hardtop Diesel

Boat model
engine

1 Engine (Yanmar)

Engine type and count
length

20 feet

Overall boat length
fuel

Diesel

Fuel type
material

Fiberglass/Reinforced

Hull material

1984 Duffy 20 Hardtop Diesel- Refit & Ready


This charming Duffy 20 Hardtop offers timeless elegance with the benefits of a modern upgrade. Powered by a unique Yanmar diesel engine, this vessel has undergone a $20,000 professional refit by South Coast Shipyard in Newport Beach.


Highlights:

• Yanmar diesel engine- rare and efficient

• Stunning etched glass hardtop for added character and shade

• $20,000 in recent upgrades, including:

• Fresh bottom paint

• New shaft seals

• Full LP paint on hull and interior

• Brand new seating

• Refinished brightwork & varnish


This boat is a head turner in the harbor and a joy to cruise. Whether you're looking for a classy electric alternative, a harbor cocktail cruiser, or a standout rental fleet addition, this Duffy is ready to impress.


For serious inquiries, please contact Mark directly at 949-548-9999


All inquiries must include a phone number for a response

Nominal Length
20ft
Length Overall
20ft
Beam
8ft
Cruising Speed
8kn
Max Speed
10kn
Range
50nmi
Seating Capacity
12
Fuel Tanks
20gal
Electrical Circuit
12v
Hull Material
fiberglass
Hull Shape
displacement
Engine 1
Engine Make
Yanmar
Engine Model
2GM20 F
Total Power
30hp
Engine Type
inboard
Fuel Type
diesel
Engine Year
2008
Drive Type
direct
Propeller Type
3-blade
Propeller Material
bronze
Cockpit Cushions
✓
Compass
✓
Disclaimer

The Company offers the details of this vessel in good faith but cannot guarantee or warrant the accuracy of this information nor warrant the condition of the vessel. A buyer should instruct his agents, or his surveyors, to investigate such details as the buyer desires validated. This vessel is offered subject to prior sale, price change, or withdrawal without notice.

Price History

DateEventPrice
12/2/25Price decreased$19,500(-20.4%)
7/8/25Price decreased$24,500(-15.5%)
6/28/25Initial price$29,000

Contact Allied Yacht & Ship LLC

226 21st Street, Newport Beach, CA, 92663

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Address

226 21st Street
Newport Beach, CA 92663

Boat Location

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Contact Allied Yacht & Ship LLC

226 21st Street, Newport Beach, CA, 92663

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