22 Aug 25
At Thwaites Marine, we specialise in inboard engine
servicing, repairs, and installations. As authorised dealers for Volvo Penta
and Yanmar, we specialise in inboard servicing and installations for
these brands. However, our expertise
doesn’t stop there! We can install, service, and repair any inboard engine or
marine generator to keep your vessel performing reliably.
Comprehensive Marine Services
Whether it’s a small yacht, luxury cruiser, commercial
vessel, or trailer boats, we customise solutions that best fit your boating
lifestyle. This includes:
New engine sales & installations
·
Diagnostics & driveline repairs – from
cutlass bearings to prop shafts and engine alignments
·
Engine & transmission maintenance
·
Domestic systems – water makers, pumps, holding
tanks
·
Stabiliser systems – installation, servicing,
and repairs
·
Insurance assessments & repairs
Trusted Brands, Local Expertise
As mentioned before, we work with the world’s leading marine
engine brands:
Volvo Penta: Reliable, powerful, and designed for
seamless cruising
Yanmar: The global standard in sailboat propulsion,
delivering fuel efficiency and unmatched reliability.
We also stock and source genuine parts from brands such as Yamaha,
Mercury, Vetus, Humphree, and more! We ensure your vessel gets the very
best.
Get to Hear What Our Clients Say About Our Service!
Kathy Brown
“We highly recommend Thwaites Marine after Ben and his team
did such a wonderful and professional job installing a new engine in our
beautiful little yacht! Ben was prompt, polite, and helpful throughout the
entire process, and we are now so happy to start our sailing adventures again.
It’s great to have someone on our side. Great work, Thwaites Marine!”
James McGinty
“Thwaites Marine has taken care of my 31 Black Watch for the
last five years. This is my first diesel-powered boat, and I was not familiar
with it. Ben has always been very willing to answer the many questions I had
and make suggestions focused on creating a service plan and a routine that
ensures nothing is overlooked in relation to maintenance. The team is clean and
respectful of your pride and joy, and their pricing is very fair. I would
highly recommend Thwaites Marine for all your boating needs.”
Team at Corum
“Many thanks to Ben and Tom for sorting out our engine
problems while we were passing through Coffs Harbour. They provided great
professional service and impressive, high-quality work. All the best from the
team @Corum 1088.”
Anne Hill
“Thwaites Marine first came to our rescue when we limped
into Yamba, NSW, in our Maritimo A60 on one engine. Ben and his staff were
professional, considerate, and observant of our boating time frame. We are from
Sanctuary Cove in Queensland and continue to use Thwaites Marine for our
maintenance, either in Coffs Harbour or on the Gold Coast. We would not go
anywhere else. Ben from Thwaites Marine in Coffs Harbour has recently completed
a service on our Volvo motors in our Maritimo A60, KOKOMO. His ethos of professionalism
is unwavering. He had all parts on-site and completed the job within the
allocated time frame at a reasonable cost. To repeat myself – we would not go
anywhere else.”
Ready to Cruise with Confidence? Let Us Be Part of Your
Boating Journey
Don’t leave your water adventures to chance. Let Thwaites
Marine keep your inboard engine running smoothly so you can focus on what
matters: enjoying the freedom of the sea.
📍 Based on the East
Coast, we proudly serve boaters from Lord Howe Island to the Gold Coast and
Sydney.
👉 Book your inboard
servicing or installation today with Thwaites Marine – your boat is always in
good hands.
BOOK
A SERVICE