Service & Maintenance

At Thwaites Marine, we can service and repair any make and model of Inboard and Outboard engine. We provide quality engine installations and run diagnostics with a 100% success rate. Your boat, always in good hands at Thwaites Marine


Qualified and experienced mechanics and technicians

ensuring you are safe and spend more time on the water.

At Thwaites Marine, we can service and repair all outboard

makes and models

Outboard Repairs & Servicing


From trailer boats to large commercial vessels.

  • New engine and drive sale and installations.
  • Engine and drive line diagnostics and repairs.
  • Domestic/house systems: Water makers, holding tanks, pumps, etc.
  • Drive line diagnostics, repairs and maintenance ie. cuttlass bearings, couplings, propellers, engine alignments etc.
  • Stabiliser system: installation, maintenance and repairs.
  • Engine and transmission maintenance.
  • Insurance jobs: assessments and repairs.

Outboard Repairs & Servicing

Quality parts, accessories, oils...

We only sale parts we use.

We work with a big range of brands:

Tohatsu, Mercury, Yamaha, Honda

Evinrude, Volvo Penta, Yanmar, Humphree, Vetus, BLA

..and more!

Parts & Accessories

Customer Testimonials

Kathy Brown

We highly recommend Thwaites Marine after Ben and his team did such a wonderful and professional job giving our beautiful little yacht its new engine! Ben was so prompt, polite and helpful through everything and we are now so happy to start our sailing adventures again. So good to have someone on our side… Great work, Thwaites Marine!

Team at Corum

Many thanks to Ben and Tom for sorting out our engine problems as we were passing through Coffs Harbour. Great professional service and impressive high-quality work.
All the best from the team @Corum 1088!

James McGinty
James McGinty

Thwaites Marine has looked after my 31 Black Watch for the last 5 years. This is my first diesel powered boat and something I was not familiar with. Ben has always been very willing to answer questions I had (which has been plenty) and make suggestions that are focused on creating a service plan and a routine that ensures nothing is missing in relation to maintenance. The team is clean and respectful of your pride and joy, and pricing is very fair. I would highly recommend Thwaites marine for all your boating needs. Regards James.

Di Kilbridge
Di Kilbridge

Our first encounter with Ben was when he was assigned the job of installing a Beta 14hp engine in our sailing boat four years ago. Having a Yanmar 8hp engine in our boat since its launch in 1978, we were unsure how difficult it would be to change over to a more modern engine but Ben surprised us with not only his ability to engineer a solution to fit a completely different shape of engine but the workmanship was exceptional. He was patient and thorough, ensuring that the mounts would be perfectly level and the engine perfectly balanced on the shaft. After over 25 years of frustration with our old engine, our new engine hasn't skipped a beat in its performance and is so quiet! Ben continues to service our engine annually and remains very dedicated to follow up on whatever work he performs. As a marine engineer Ben was also able to fully service our Fleming wind vane with new bushings and freeing up a seized part. He has also installed a new fuel tank to replace our old stainless tank. No matter what Ben tackles, he gives 100% in both his work and his service, including the superior staff he works with who are also fully committed to living up to the Thwaites Marine reputation for quality work and service. Cheers to all the staff at THWAITES! Phil and Di, Yacht Matira.

Allen Hicks
Allen Hicks

Got a great deal from Thwaites Marine. Laura was really helpful from the initial enquiry I made, right through to the day I picked up my new Stacer boat. If you're looking for a new boat and great service, give these guys a try!

Ben Johnson
Ben Johnson

We have dealt with Thwaites Marine for many years and during this time we have found them to be reliable and cost effective with their pricing. They have been able to resolve our problems that other mechanics were not able to do in the past. We would be happy to recommend their services as they are great to deal with.

Anne Hill
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 have recently completed a service on our Volvo Motors in our Maritimo A60 KOKOMO His ethos of professionalism is unwavering. He had all parts onsite and completed the job in the allocated time frame at a reasonable cost. To repeat myself - we would not go anywhere else.

Luke Strange
Luke Strange

I can't thank Ben, Laura, & The team at Thwaites Marine more for Their Exceptional Help, Service, and Advice during the Process with my Boat Purchase. The Stacer Crossfire 519 SC Paired with The Brand New Evinrude 115 HO G2 is a very stable boat combined with great fuel efficiency and heaps of power and torque to also have fun either towing a mate on water ski's or on a wake board to being about to tow a few friends at a time on a multi person tube. Ben and the team have been Marine Engineers for a long time they offer plenty of knowledge and will help you in any way they can either with Repairs to your current boat, to upgrading the motor or Upgrading to a brand-new Boat and Motor Package. If I ever have to upgrade to a bigger boat in the future I will make them my first port of call.


We are based in Coffs Habrour, operating in a stretch of coast from Port Macquarie to Ballina. We travel weekly to Port Macquarie and Yamba.

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Customer Reviews

Latest News & Sponsorships

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