How to Choose an Outboard Motor Australia 2026

How to choose an outboard motor Australia — buying an outboard motor is one of the biggest investments you will make as a boat owner in Australia. With so many brands, models and sizes available it can be overwhelming to know where to start. In this complete guide we walk you through everything you need to know to choose the perfect outboard motor for your boat in Australia in 2026.
Step 1 — Know Your Boat’s Maximum Horsepower Rating
The first and most important step when choosing an outboard motor in Australia is to check your boat’s maximum horsepower rating. This rating is usually found on a compliance plate attached to the transom of your boat. Never exceed your boat’s maximum horsepower rating as this can be dangerous and may void your boat’s warranty and insurance.
Step 2 — Choose the Right Horsepower
Choosing the right horsepower for your outboard motor is crucial. Too little power and your boat will struggle to perform. Too much power and you risk damaging your boat or creating dangerous conditions on the water. As a general guide for Australian boaters a 3.5m to 4m tinnie works best with 15HP to 25HP. A 4m to 5m boat works best with 25HP to 60HP. A 5m to 6m boat works best with 60HP to 115HP. A 6m to 7m boat works best with 115HP to 200HP. A 7m and above boat works best with 200HP to 300HP or more.
Step 3 — Choose Between Two Stroke and Four Stroke
When choosing an outboard motor in Australia you will need to decide between a two stroke and four stroke engine. Four stroke outboard motors are the most popular choice for Australian boaters in 2026. They are more fuel efficient, quieter and cleaner than two stroke motors. Four stroke outboard motors from brands like Yamaha, Honda, Suzuki, Mercury and Tohatsu are available at Outboard And Small Engines with free shipping Australia wide.
Two stroke outboard motors are lighter and generally less expensive than four stroke motors. However they are less fuel efficient and produce more emissions than four stroke motors. Two stroke outboard motors are now banned on many Australian waterways so always check local regulations before purchasing.
Step 4 — Choose the Right Shaft Length
Choosing the right shaft length is important when selecting an outboard motor in Australia. The shaft length refers to the distance from the mounting bracket to the propeller. Most small to medium sized boats in Australia require a short shaft of 15 inches or a long shaft of 20 inches. Larger offshore boats may require an extra long shaft of 25 inches or more. Check your boat’s transom height to determine the correct shaft length before purchasing your outboard motor.
Step 5 — Choose the Right Brand
Australia has five major outboard motor brands to choose from — Yamaha, Honda, Suzuki, Mercury and Tohatsu. All five brands offer excellent reliability, performance and value for money. Yamaha is the most popular outboard motor brand in Australia known for legendary reliability and fuel efficiency. Mercury is known for powerful performance and innovative technology. Honda is known for quiet operation and outstanding reliability. Suzuki is known for lightweight design and excellent fuel economy. Tohatsu is known for affordability and excellent value for money.
At Outboard And Small Engines we stock all five brands with free shipping Australia wide and full manufacturer warranty on every motor.
Step 6 — Consider Electric Start vs Manual Start
When choosing an outboard motor in Australia you will need to decide between electric start and manual start. Electric start outboard motors are more convenient and easier to use especially for older boaters or those with limited upper body strength. Manual start outboard motors are lighter and less expensive but require more physical effort to start. Most modern outboard motors in Australia are available with both electric and manual start options.
Step 7 — Set Your Budget
Setting a realistic budget is an important step when choosing an outboard motor in Australia. Small portable outboard motors from 2.5HP to 9.9HP typically cost between $800 and $3,000 in Australia. Mid range outboard motors from 15HP to 40HP typically cost between $3,000 and $8,000. Large outboard motors from 50HP to 115HP typically cost between $8,000 and $20,000. High performance outboard motors from 150HP to 300HP typically cost between $20,000 and $50,000.
At Outboard And Small Engines we offer competitive prices on all outboard motors Australia wide with free shipping and our industry leading 90 day returns policy.
Step 8 — Buy from a Trusted Australian Supplier
When buying an outboard motor in Australia it is important to buy from a trusted and reputable supplier. Outboard And Small Engines is Australia and New Zealand’s trusted online supplier of outboard motors. We stock hundreds of Yamaha, Honda, Suzuki, Mercury and Tohatsu outboard motors at competitive prices with free shipping Australia wide.
All our outboard motors come with full manufacturer warranty and our industry leading 90 day returns policy. Our friendly customer service team is available to help you choose the perfect outboard motor for your boat. Contact us on +61 480 009 809, email info@outboardandsmallengines.com.au or follow and message us on Facebook, Instagram and TikTok at Outboard And Small Engines. We look forward to helping you choose the perfect outboard motor for your boat in Australia!