The 2026 Viaggio Diamante D28UW is a 28-foot aluminum pontoon powered by twin Mercury 400XL Verado engines with digital throttle and shift, delivering 800 horsepower combined. The boat features a saltwater upgrade package and side keels on both port and starboard for improved handling and stability.
The layout includes a captain and mate bolstered chair setup, in-floor storage in the center pontoon, and an inflatable air station. Black cool-touch flooring runs through the 24- to 26-foot section. The deck is fitted with a Lusso arch tower with cladding, three pre-installed Lillipad ghost mounts, a Lillipad stern boarding ladder with ghost mounts, and an RGB exterior light package. Black fencing and graphics define the upper and lower perimeter.
Additional equipment includes a flag pole kit, fender clips, in-chaise trash receptacle, and Mercury DTS power assist steering. The pontoon measures 28 feet in length with an 8.5-foot beam, built on a solid aluminum platform suited for freshwater and saltwater use.
Length
28.00 FT
Beam
8.50 FT
Material
Aluminum
Engines
2
Engine Make
Mercury
Engine Model
400XL Verado JPO 6.4
Power
2 x NaN HP