Williams Dieseljet 445 vs Navisoul Caral Marine 750
The superyacht diesel tender versus the passage RIB: €90,000 goes a long way.
Williams Dieseljet 445 
Navisoul Caral Marine 750 Specs and price, head to head
| Williams Dieseljet 445 | Navisoul Caral Marine 750 | |
|---|---|---|
| Length | 4.45 m | 7.6 m |
| Hull | Fibreglass (GRP), diesel jet | Deep-V rigid fibreglass hull |
| Tubes | Hypalon (CSM) | Hypalon (CSM) |
| Max power | 200 hp | up to 2 × 300 hp |
| Capacity | 7 | 13 |
| Indicative price | From ~€90,000 (listings) | On quote — for reference, the 550 with a 115 hp Yamaha is listed at ~€39,000 |
Indicative prices from public listings and distributors (2026); may vary by configuration and season.
Where the Navisoul Caral Marine 750 wins
- For a fraction of the price: 7.6 m, 13 seats and optional twin engines
- A complete family day cruiser: sun pad, big console, stowage
- Outboard mechanics: service in any port
- Standard Hypalon too
Where the Williams Dieseljet 445 wins
- Diesel: shares fuel with the mothership (a common superyacht requirement)
- Fits large garages and meets superyacht fleet standards
- Williams finish and pedigree
Our verdict
Honest note: the Dieseljet 445 exists for superyachts that require a diesel garage tender — there's no Navisoul alternative there. For everyone else, the comparison is a lesson in value: €90,000 buys you a Dieseljet… or a very well equipped Navisoul 750 with half the budget left over.
Frequently asked questions
Which is better, the Williams Dieseljet 445 or the Navisoul Caral Marine 750?
Honest note: the Dieseljet 445 exists for superyachts that require a diesel garage tender — there's no Navisoul alternative there. For everyone else, the comparison is a lesson in value: €90,000 buys you a Dieseljet… or a very well equipped Navisoul 750 with half the budget left over.
How much does the Navisoul Caral Marine 750 cost?
On quote — for reference, the 550 with a 115 hp Yamaha is listed at ~€39,000. The final price depends on configuration (material, colour, engine): ask for a fixed quote and we reply within 24 working hours.
Are the compared prices for the same configuration?
We always compare the most equivalent configuration possible using public listing and distributor prices from the current year. Market prices change: always confirm the final number in a quote.
Get a fixed price for the Navisoul Caral Marine 750
Configuration, engine, transport and delivery time in a single number, within 24 working hours. And if your case calls for the rival, we'll say so.
Williams Dieseljet 445 or Navisoul Caral Marine 750?
We reply within 24 working hours with price, delivery time and customisation options.