Authorised Volvo Penta and Yanmar dealer in Spotswood, Melbourne — sales, repowers and service for Port Phillip Bay.
Not sure where to start? Tell us roughly what you need and we'll take you straight to the matching models. Unsure which brand suits your boat? Browse both — or talk to our team.
We are authorized dealers for the world's leading marine engine manufacturers, offering comprehensive sales, service, and support.

World-leading marine engines delivering exceptional performance, fuel efficiency, and reliability. From compact saildrive units to powerful inboard engines.
Power Range
13-1000 HP
Key Features

Premium Japanese marine engines renowned for their durability, compact design, and advanced technology. Perfect for sailing and motor yachts.
Power Range
9-640 MHP
Key Features
Whether you're buying a new boat engine, repowering an older vessel or replacing a tired motor, Mariner Engineering supplies and installs new Volvo Penta and Yanmar marine engines for boat owners across Melbourne, Port Phillip Bay and Victoria.
As an authorised Volvo Penta and Yanmar dealer in Melbourne, we supply new marine diesel and petrol engines for motor yachts, sailing yachts, trailer boats and commercial vessels — from compact saildrives to high-output inboards and IPS pod-drive packages. We help you spec the right engine, drive and gearbox for your hull, then handle supply and commissioning.
Browse Volvo Penta enginesRe-engineing an older boat is often smarter than buying new. We carry out marine engine repowers and changeovers across Port Phillip Bay and Victoria — assessing your vessel, recommending the right new engine, and managing installation, alignment and sea-trial commissioning. A modern repower lifts performance, fuel efficiency and reliability.
Engine repowers & changeoversChoosing a marine engine is about more than horsepower — hull type, weight, drive system and how you use the boat all matter. With Volvo Penta and Yanmar ranges from around 13 hp to over 1,000 hp, we'll match the power and drive to your vessel and budget, and back it with factory-trained service afterwards.
Get engine adviceTell us about your boat and we'll recommend the right engine and drive — with an honest quote.
New to this? Read our guides on choosing a new marine engine and repower vs rebuild.
Why buy from Mariner
Genuine factory products, warranty and back-up — not a grey importer.
Diagnostics, servicing and commissioning from our Spotswood, Melbourne workshop.
OEM parts and consumables on the shelf to keep your boat on the water.
Repower specialists serving boat owners across Port Phillip Bay and beyond.
Keep it running at its best with factory-trained servicing and genuine parts from our Spotswood workshop.
We help you choose the right engine and drive, then supply, install and commission it to factory specification — with ongoing support for the life of your boat.