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Williams DieselJet 505 insurance: calculate your premium
Model page, insured as a tender
Year, place of purchase and previous owners do not decide whether we insure the Williams DieselJet 505: we write it as a tender. Five minutes online cover everything from liability and hull to legal expenses and personal accident.
At a glance
Make
Type of boat
tender
Premium from
from €39 a year for a sailing boat, from €49 for a motorboat
Technical data
Length overall
Manufacturer figures for the Williams DieselJet 505, 2026 model year; your own papers count.
Williams DieselJet 505: cover, cost and conditions
How much does the name Williams DieselJet 505 matter to the premium? Hardly at all. What counts is the type of boat, the year, the value, the engine output and the cruising area, the five fields of the online calculator.
What should you budget for the Williams DieselJet 505? It starts from €39 a year for a sailing boat, from €49 for a motorboat. Hull cover follows the value of the boat. Partial: fire, storm, lightning, theft of the whole boat, winter storage. Full, on top: collision, grounding, vandalism, theft of parts. A total loss means the agreed value, in the Premium tariff without new-for-old deductions.
The Williams DieselJet 505 may be second hand, imported or ordered new, and the berth may be at home or abroad: we write it in each of these cases. The international certificate of insurance comes by itself in ten languages, and cover taken out before the handover already includes transport and the first launch.
Not to be mixed up with its sisters: this is the Williams DieselJet 505, number five hundred five.
What is a used Williams DieselJet 505 worth?
A used Williams DieselJet 505 built between 2011 and 2024 in average condition is typically worth
between €25,700 and €66,200 today.
Well kept boats with recent engines sit above that, boats with defects below.
| Year built | typical range | midpoint |
|---|---|---|
| 2024 | €50,600 to €64,400 | €57,500 |
| 2023 | €52,000 to €66,200 | €59,100 |
| 2022 | €47,400 to €60,400 | €53,900 |
| 2021 | €41,100 to €52,300 | €46,700 |
| 2020 | €38,800 to €49,400 | €44,100 |
| 2019 | €37,100 to €47,300 | €42,200 |
| 2018 | €35,700 to €45,500 | €40,600 |
| 2017 | €34,300 to €43,700 | €39,000 |
| 2016 | €33,000 to €42,000 | €37,500 |
| 2015 | €31,000 to €39,400 | €35,200 |
| 2014 | €29,800 to €38,000 | €33,900 |
| 2013 | €28,200 to €35,800 | €32,000 |
| 2012 | €27,000 to €34,400 | €30,700 |
| 2011 | €25,700 to €32,700 | €29,200 |
Does the sum insured on your Williams DieselJet 505 still match what it is worth today?
After a total loss, that number is what counts.
Estimate from our boat records, checked regularly against asking prices. As of October 2026. Not a survey.
Frequently asked
Does NAMMERT insure the Williams DieselJet 505?
Yes, the Williams DieselJet 505 is insurable with us.
What decides is not make and model but five figures: type of boat, year, value,
engine output and cruising area.
What does cover for a Williams DieselJet 505 cost?
It starts from €39 a year for a sailing boat, from €49 for a motorboat.
What your Williams DieselJet 505 costs exactly you can work out online in a few minutes,
and you need no contact details to do it.
My model is spelled slightly differently, does this page still apply?
Yes.
The Williams DieselJet 505 appears in papers and brochures under slightly different names.
Premium and cover go by the technical data, and you enter the name as it stands in your papers.
On a total loss, do I get the replacement value?
Yes, provided you have full cover: we pay the agreed value for the Williams DieselJet 505,
in Premium without limit and with no deduction for new-for-old.
Can I switch from my existing insurer?
Yes.
Our switching service handles the cancellation of the existing contract for the Williams DieselJet
505 free of charge; you pay from the end date and keep the switching discount for good.
Other models by this make
Williams DieselJet 505 insured in five minutes.
Calculate your insurance premium online, policy the same day, or call us: +49 3375 / 29 12 77.
