2025 Williams Jet Tenders Dieseljet 505

The Williams Dieseljet 505 is a 16.5-meter fiberglass runabout powered by a single Yanmar 4JH turbodiesel engine rated at 110 hp. It reaches speeds of 35 knots and accommodates eight people. The jet propulsion system allows refueling directly from a yacht's tanks, making it well-suited for tender operations.

The boat features a removable ski tow mast, a deep telescoping swim ladder, boarding handles, and foot steps for easy access between the tender and a larger vessel. Navigation equipment includes GPS and VHF radio. Teak detailing is standard throughout.

This 2025 model is equipped with custom military grey carbon tube rails, Silvertex Sandstone upholstery, and a custom gel coat finish in RAL 7012 applied to the hull, deck, and console. LED deck lights are installed. The boat is delivered with weathered teak accents and represents the best-selling jet-diesel tender in its class.