Costs vary too much by model, access, location and damage to publish a universal price list. Remote labour and freight, difficult engine access, seized fasteners and yard delays can dominate the invoice.
Build an annual budget in categories:
| Category | Include |
|---|---|
| Routine service | Oil, filters, impeller, belts, coolant checks, labour |
| Calendar work | Coolant, hoses, exhaust inspection, batteries, corrosion control |
| Haul-out propulsion | Anodes, drive oil, seals, diaphragm planning, bearing and propeller |
| Condition monitoring | Oil samples, electrical tests, cooling inspection, sea trial |
| Contingency | Starter, alternator, pumps, sensors, injectors, mounts and freight |
| Capital reserve | Major overhaul, gearbox or saildrive replacement, repower |
Twin-engine catamarans double many consumables but also allow efficient scheduling because both sides can be serviced together. A generator adds another diesel, raw-water system, exhaust, start battery and maintenance calendar.
When comparing quotes, check whether prices include GST, haul-out, crane, fluids, freight, fabrication, propeller work, wiring, commissioning and follow-up alignment. The cheapest engine package can produce the most expensive installation if it requires major structural or exhaust changes.