DieselJet 445

The best diesel tender just got better. The DieselJjet 445 comes with a powerful Yanmar 4JH4 110hp Diesel engine and an overhauled helm with a centrally mounted Raymarine display that puts you in complete control. Comfortably sit 7+1 passengers on the DieselJet 445

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Owners handbooks

This manual contains important information and must be read before operating this tender.

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DieselJet 445

Sea coast


As an owner you can make small changes in your daily use to lessen your environmental impact

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WJT tender leaving the garage

Submit your warranty

It only takes a couple of minutes to cover your Williams tender by filling in our convenient warranty card. Submit your warranty

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Help us improve and maintain our reputation as the leading tender supplier in the world by completing a short survery.

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WJT Tender engine

Parts Manuals

Want to modify or upgrade your tender? Everything you need is right here.

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WJT tender dials and wheel

Service Manuals

Explaining how to maintain and service your Williams tender.

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If you have more queries or want to learn more about our Yacht Tenders, get in touch!