Marine Engines

Experience the powerful reliability of a John Deere engine on the water. There’s no time for worrying about your propulsion or generator engine while you’re hard at work or relaxing on your vessel.
A John Deere marine engine means stress-free cruising.

6135S

PowerTech™ 13.5L Marine Engine If you have a high horsepower marine application you’ll definitely want to check out our new 13.5L engine. It delivers reliable and durable power up to 559 kW (750 hp) in a compact, heat exchanger cooled configuration with side or front service locations. More horses in the engine room aren’t the only things you’ll like about our new 13.5L. Like all John Deere marine engines, it also features low noise, low vibration, and excellent fuel economy. And with high torque at low RPM, you get excellent vessel control and manoeuvring. Enjoy all this, along with more power and flexibility, with our new 61 35SFM75 marine engine.

6090S

PowerTech™ 9.0L Marine Engine The 9.0L marine engine is cooled by sea water through a heat exchanger. It is turbocharged and aftercooled and has a water jacketed exhaust manifold and turbocharger housing. The propulsion engines feature constant power to 400 rpm below rated speed making these engines an excellent choice for patrol craft, launches, work boats, fishing boats, trawler yachts and sport fishing boats.

6068T

PowerTech™ 6068T Marine Engine Designed for efficiency, this 6-cylinder, 6.8L diesel engine delivers higher torque at a low-rated rpm to turn larger propellers at lower speeds.

6068S

PowerTech™ 6.8L Marine Engines The 6.8L six-cylinder engine is offered as either a propulsion or gen drive engine in either keel cooled or heat exchanger configurations. The engines are either turbocharged, non-aftercooled, turbocharged with jacket water aftercooling or turbocharged with seawater after cooling. The propulsion engines feature constant power to 400 rpm below rated speed, making these engines an excellent choice for launches, work boats, trawler yachts, and patrol craft.

6068A

PowerTech™ 6.8L Marine Engine The 6.8L six-cylinder engine is offered as either a propulsion or gen drive engine in either keel cooled or heat exchanger configurations. The engines are either turbocharged, non-aftercooled, turbocharged with jacket water aftercooling or turbocharged with seawater after cooling. The propulsion engines feature constant power to 400 rpm below rated speed, making these engines an excellent choice for launches, work boats, trawler yachts, and patrol craft.

4045T

PowerTech™ 4045T Marine Engine Smart and durable, this 4-cylinder, 4.5L diesel engine has a compact design for easy installation. Fewer external connections means fewer hoses or fittings that could leak or break. Internal balancers offer low noise and vibration for crew comfort.

4045D

PowerTech™ 4045D Marine Engine Smart and durable, this 4-cylinder, 4.5L diesel engine has a compact design for easy installation. Fewer external connections means fewer hoses or fittings that could leak or break. Internal balancers offer low noise and vibration for crew comfort.

Customer Reviews

Latest News & Sponsorships

Raffle for the flood-affected in Woodburn and Coraki, NSW

Woodburn and Coraki have been absolutely devastated by the latest floods in Norther NSW. Most families have lost everything. Thwaites Marine will be raffling 3x Batela Raincoats to raise money for the affected families. Every bit helps.

Laura Peregrin Thwaites Marine Owner

I have a background in diving and marine science. Before getting in business, I spent years on boats either doing research or teaching people to dive. When I met my husband Ben, he introduced me to all the technical aspects of boating: engines and hulls. We share a passion for the ocean and now we enjoy boating, sailing and surfing as a family of four.

PIERRE GAL and MISTRAL

Pierre Gal, a French expat living on the mid-north coast of Australia, is this year entering the Sydney to Hobart boat race with the help of Thwaites Marine.

Sailing Club Coffs Harbour

Thwaites Marine sponsors the Coffs Coast Sprint Regatta, typically held in April each year. The harbour provides a unique atmosphere for sailing as a natural amphitheatre with many spectator options.

WOMEN WHO SAIL AUSTRALIA (WWSA)

Stablished in 2014, Women Who Sail Australia is a group of women interested in boats. that now boasts more than 5,000 members Australia-wide.

Copmanhurst Bass Classic

Hosted at Copmanhurst on the Mighty Clarence River, the Bass Classic is the No.1 Bass catch & release event in the Northern Rivers.

The Coffs Coast Game and Sport Fishing Club

The Coffs Coast Game and Sport Fishing Club (CCGSFC) is a non-profit organisation, family-orientated club with a group of members that share in a passion for fishing, be it fishing the awesome waters off the Coffs Coast or exploring the amazing inland waterways that the Coffs Coast has to offer.

Coffs Habour Bluewater Freediving Club (CHBFC)

Coffs Habour Bluewater Freediving Club (CHBFC) is an amateur sporting club based in the beautiful Coffs Harbour region on the North Coast of NSW. We are lucky enough to have the Solitary Islands as our front yard and such, encounter world class spearfishing and freediving every week! The founding members established CHBFC in 1994 and have since seen the club grow and bring in many new divers.

A Golden Legacy - Stacer Celebrates 50 Years of Adventures

50 years young, Stacer celebrates only the beginning of its successes, launching into the market with its latest campaign honoring a golden history of the brand name.