This 1986 40ft Billy Knowles is a great example of a well-kept classic cold mold express sportfish. She was refit in 2011 and has since been well maintained and upgraded to encompass everything that a modern boat should represent. Don’t miss this opportunity to own a beautiful piece of sportfishing history.

Key Features of This Yacht
Vessel Description
Additional Information
Recent Updates
- Feb 2021 - new water tank
- July 2021 - replace radar
- Oct 2021 - bottom paint
- March/April 2022 - new Phasor generator
- March/April 2022 - new fuel tanks/teak work
- May 2022 - oil service
- August 2022 - full engine service and heat exchangers/new turbos
- Sept 2022 - new antennas
- January 2023 - new sunshade and side curtains
- April 2023 - oil service
- Oct 2023 - new batteries
Yacht Specification
Vessel Name
Big Mama
Length
40 ft
Beam
12.5 ft
Manufacturer
Knowles
Model
40 Express
Year Of Vessel
1986
Boat Type
power-sportfish
Fresh Water Tank
50 gal
Fuel Capacity
310 gal
Fuel Type
Diesel
Engine Make
Yanmar
Engine Model
GTE
Engine Hours
Engine 1: 2200, Engine 2: 2200
Engine Type
Inboard
No. of Fuel Tanks
1
No. of Engine
2
Engine HP
2 X 465
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View AllAbout 1986 Knowles 40 Express
This 1986 Knowles 40 Express is a premium power category boat currently located in Stuart, FL, United States. It is powered by 2 Yanmar engines producing 2 X 465 HP. With a beam of 12.5 ft and a fuel capacity of 310 gal gallons, it's an ideal choice for buyers seeking Diesel powered boats with efficient layouts.


