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Insuring the Williams SportJet 520
Model page, insured as a tender
We insure the Williams SportJet 520 as a tender, regardless of the year it was built, where you bought it or how many owners it had. Liability, hull, legal expenses and personal accident cover from one house, taken out online in five minutes.
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
5.19 m
Beam
2.01 m
Manufacturer figures for the 2026 model year. Premium and cover follow the figures in your own papers.
Williams SportJet 520: cover, cost and conditions
Williams SportJet 520: for the premium the model name is not the deciding figure. What counts is the type of boat, its year, its value, its engine output and the waters you sail, the five entries you make in the online calculator.
A tender runs under the mother yacht’s policy up to an agreed sum. If you use it on its own or run a high-value model, give it its own value in the policy. The usual claim is not sinking but theft from the pontoon or the davits.
What does cover for a Williams SportJet 520 cost? The premium starts from €39 a year for a sailing boat, from €49 for a motorboat. Hull cover follows the value: partial cover answers for fire, storm, lightning, theft of the whole boat and damage in winter storage; full cover adds collision, grounding, vandalism and theft of parts. On a total loss we pay the agreed value, and in the Premium tariff with no deduction for new-for-old.
Bought used, imported or ordered new: we write the Williams SportJet 520 with a berth in Germany and abroad alike. The international certificate of insurance reaches you automatically in ten languages, and taking cover out before the handover pays off, because transport and the first launch are then already covered.
Frequently asked
Does NAMMERT insure the Williams SportJet 520?
Yes. Neither the make nor the model decides insurability. What counts is the type of boat, its year, its value, its engine output and the waters you sail.
What does cover for a Williams SportJet 520 cost?
Cover starts from €39 a year for a sailing boat, from €49 for a motorboat. The exact premium takes a few minutes in the online calculator, with no contact details required.
My model is spelled slightly differently, does this page still apply?
Yes. Spellings and suffixes vary with the papers and the model year. Enter the name as it appears in your documents; the technical figures decide premium and cover.
On a total loss, do I get the replacement value?
Under full cover, yes, at the agreed value, and in the Premium tariff without limit and with no deduction for new-for-old.
Can I switch from my existing insurer?
Yes. Our switching service cancels the old contract free of charge, you pay only once it has run out, and you keep a permanent switching discount.
Other models by this make
Williams SportJet 520 insured in five minutes.
Calculate online, policy the same day, or call us: +49 3375 / 29 12 77.