Sun Party Custom Diamond Plate 2003 $29,900.00 CAD *


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$29,900.00 CAD *

2003 SunParty Custom Diamond Plate – Totally Rebuilt, Incredible Value $29,900 CAD

(Currently located in Port Lambton, ON, Canada)

Looking for a like-new pontoon boat at a fraction of the price of a new model? This 2003 SunParty Custom has been completely rebuilt from the pontoons up in 2021, transforming it into a modern, high-performance, and ultra-durable vessel—offered at less than one-third the cost of a new pontoon.

Built with premium materials and top-tier craftsmanship, this boat doesn't just look great—it’s built to last. The diamond plate aluminum exterior and heavy-duty square aluminum framework far surpass the flimsy facings and tubing found on most production pontoons.

In 2024, a brand-new Water Glide center sponson was added, giving the boat an extra 700 lbs of lift and significantly enhanced handling—bringing its ride quality closer to that of a V-hull.

Whether you’re hosting a family outing or gearing up for a weekend of serious fishing, this boat delivers space, comfort, and functionality. A full-length Bimini with camper side curtains allows you to extend your season and enjoy overnight trips or rougher weather without worry.


Standout Features:

  • Fully rebuilt in 2021 – Everything from the deck up is new or upgraded

  • New (2024) Water Glide center sponson – Adds lift and sharpens handling

  • Durable diamond-plate aluminum siding – Built to last far longer than typical aluminum paneling

  • Heavy-duty square aluminum frame – Rugged, reliable, and far superior to mass-market builds

  • Evinrude 150 E-TEC – Powerful, clean, and reported as “problem-free and reliable” by the owner

  • Humminbird Helix 5 GPS/Fish Finder – Know exactly where you’re headed and what’s below

  • Jensen AM/FM/CD stereo system

  • Marine-grade snap-in seagrass-style flooring – Easy to clean, stylish, and durable

  • Integrated cupholders throughout & large cooler near helm

  • Four folding, swivel seats and spacious open deck – Ideal for lounging or casting lines

    INCLUDES ROAD TRAILER


This is not just a refreshed pontoon—it’s practically a new build with better materials, better features, and better value.
A must-see for anyone wanting a quality boat without the new-boat price tag.

Call or Text (519) 520-9867 for more information.

St Clair Boat Sales offers the details of this vessel in good faith but cannot and does not guarantee or warrant the accuracy of this information nor warrant the condition or accuracy of the specifications of the vessel. Buyers should perform their own due diligence to investigate such details as the buyer deems necessary and proper in order to validate this information, the specifications and the condition of the vessel. This vessel is offered for sale by the owner of the vessel, subject to prior sale; price change; or withdrawal without notice.

St Clair Boat Sales - Turning Boaters Dreams Into Reality

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* Taxes and other fees may apply. Please contact the seller to confirm complete details.