About this tender
The Castoldi Jet Tender 23 is the mid-range diesel waterjet tender that we put forward when an owner wants a single boat to do owner-tender, day-boat and beach-landing duty without compromising on any of the three. At 7.10m and 2.68m beam, fourteen on the CE plate, single Yanmar diesel to a Castoldi Turbodrive 284, this is the build that sits in more 50-70m garages than any other in the line.
Captains tend to land on the JT23 because the geometry just works. Tube and console fold to fit a working tender envelope, the diesel-jet drivetrain runs off the yacht's existing fuel bunker, and the fourteen-guest plate covers the realistic shore-run case for almost every owner short of a charter operation. Castoldi's series production keeps the spec stable across hulls, which matters when the same captain has to run two of them on a sister-ship programme.
Highlights
The four details we'd point out first to a captain who hasn't seen one on the water yet.
CE Cat C plate for fourteen passengers, single Yanmar diesel to a Castoldi Turbodrive 284 H.C.T. with the Clear-Duct unclogging system. Operational draft drops below half a metre with the movable grid retracted, which is what owners with shallow Med anchorages care about.
The standard configuration runs a 250 mHP Yanmar marine diesel coupled to the Castoldi waterjet through the hydraulic clutch and movable grid system. Stable and predictable on fuel burn, with the jet's clean transom giving a usable swim-platform geometry for guest disembarkation.
The JT23 envelope, with folded console and deflated bow tube, is the size most often pre-sized into a 50-70m garage drawing. Engineered lift points, integrated fender system, and standard Castoldi parts kit mean the boat fits the build process rather than fighting it.
Gallery
The full specification
Specifications, prices, availability, and performance figures are supplied for guidance only and remain subject to confirmation by the yard, seller, broker, survey, contract, and final specification.
Questions, answered
Last call · Available
Castoldi · Albairate, Italy
Tell us about your yacht, your programme, and the missions Castoldi needs to handle. We come back within 48 hours with a written assessment - fit for the brief, lead time, and trade-offs against alternatives in the same band.
Prefer to talk? +44 (0) 77180 88055 · other ways to reach us
From the library
