Author: Boat Accessories Australia Date Posted: 16 April 2026
Your boat trailer winch is arguably the hardest-working piece of equipment in your entire towing setup. Think about what we ask of it: it has to retrieve a wet boat weighing hundreds, or even thousands, of kilos and bring it up perfectly centred onto a few slippery rollers while sitting on a steep, often algae-covered slope.
It’s a huge mechanical task that happens at the end of a long day when everyone is tired. If you are like many other boat owners, you may have experienced that slight feeling of dread when approaching the boat ramp for retrieval.
There is a lot of pressure to get your vessel onto the trailer quickly to clear the lane for the next person, all while trying to avoid damage to your car, your boat, or your crew. This is exactly why many skippers decide that an upgrade to their boat trailer winch is one of the smartest investments they can make.
Generally speaking, there are two kinds of trailer winches used in the Australian marine market: manual (powered by your own arm) and electric (powered by a 12V or 24V battery). While they both serve the same ultimate goal, the way they achieve it - and the effort required from you - is very different.
Choosing between them often comes down to a balance of budget, boat size, and how much physical effort you are willing to put in at the end of a day’s fishing. While a manual winch is simple and reliable, an electric trailer winch offers a level of convenience that is hard to beat, especially for solo boaters or those with larger, heavier vessels.
To get the best performance out of your gear, it helps to understand exactly how these machines handle the massive loads involved in boat retrieval. Both systems rely on mechanical advantage, but they apply it in different ways.
The hand-cranked manual winch for a trailer uses a design that has changed very little over the last few decades, simply because it works so well. The core of the machine is the windlass - a horizontal-axle rotating drum that stores the line.
In short, as you turn the handle, the gearbox increases your pulling power. A vital component here is the ratchet lock, which prevents the drum from slipping backwards under load, making sure the boat stays exactly where you’ve pulled it.
Most high-quality manual winches feature a gearbox with multiple speeds or ratios to give you more control:
There is a lot to be said for the simplicity of a manual setup. Because they don't require any electrical wiring or a dedicated battery, they are lighter and much easier to install. For many boaters, the muscle power approach is perfectly fine for smaller tinnies or runabouts.
Furthermore, because there are no electrical components to fail, a manual winch is often seen as the most dependable option for remote trips where a flat battery could cause major headaches.
Instead of relying on a crank handle, an electric trailer winch uses a powerful 12-volt or 24-volt motor to drive the gearbox. These units are hooked up to your vehicle or a dedicated house battery and use variable-speed high gear ratios to move the boat.
Most standard electric models allow you to power in the boat while offering a "freewheel" or "float" setting. This freewheel mode uses gravity to let the boat slide into the water during launch. Some specialised models include a power-out control.
This is a great safety feature that assists with releasing the boat by slowly letting the gear out under motor power rather than relying on a fast freewheel. This is particularly useful on very steep ramps where a boat might otherwise slide off too quickly.
While the initial cost of an electric trailer winch is higher than a manual one, the benefits often justify the extra spend. This is particularly true if you often boat alone or have a vessel that is difficult to move by hand.
Some of the most common reasons skippers choose an electric upgrade include:
Choosing the right gear starts with understanding capacity. You should always select your winch based on its Safe Working Load (SWL) and the actual weight of your boat. It is a common mistake to only look at the dry weight provided by the boat manufacturer.
You must include the weight of the outboard motor, a full tank of fuel, batteries, water tanks, and all your heavy fishing tackle. There are also environmental factors to consider. If you usually launch on a steep ramp, the effective weight of your boat increases because gravity is pulling it harder back into the water.
Your trailer setup also makes a difference; if you have well-maintained trailer rollers, there is much less resistance than if the boat is sitting on skids. For manual cranking, lighter boats can usually get away with a 3:1 or 5:1 ratio. However, for heavier vessels, you might require a two-speed manual winch.
These give you a quick pull-in ratio for the start and a low-speed ratio (around 16.2:1) for the final pull. If a two-speed manual winch still feels like too much hard work, that is a clear sign that it is time to move to an electric model.
As we said at the beginning, your winch is one of the hardest-working parts of your trailer, yet it often sits in a prime position to be sprayed with saltwater. Consistent winch maintenance is the only way to make sure it works when you need it. If you have owned your winch for a few years and haven't given it any attention, it’s time to get to work.
Saltwater is the enemy of all things mechanical. Even winches rated for saltwater exposure need care. The best thing you can do is thoroughly hose down the entire winch assembly with fresh water after every single trip. A few minutes of rinsing can add years to the life of the internal gears and the winch line.
After each trip, you should check if the winch strap is wet. A wet strap wound tightly onto the drum will hold moisture against the metal, promoting rapid corrosion. It is a great idea to pull the strap out to its full length and let it dry in the sun before winding it back up. You should also regularly inspect the line for fraying.
Whether you use a rope, webbing strap, or steel cable, any sign of wear is a red flag. A strap breaking under the tension of a thousand-kilo boat is incredibly dangerous. Furthermore, make sure you lubricate the gears. Ungalvanised gears are prone to rust, so apply a high-quality marine grease to the teeth, the shaft, and the bushes to keep everything moving smoothly.
At least once a year, you should clean and check your electrical winch. Remove the cover and lubricate the internal gears with a lithium-based grease, but be extremely careful not to get any grease on the clutch lining, as this will cause it to slip.
While the cable is being wound back in, you can spray the shaft and cable with a protective lubricant like WD40 to help prevent corrosion between the strands. If you need to replace the cable, always buy the exact same type and rating to make sure the winch's performance and safety aren't compromised.
Safety at the boat ramp is paramount. If you are using an electric model, always keep your car’s motor running while winching. These motors draw a significant amount of amperage, and the last thing you want is to successfully load your boat only to find your car battery is dead and you’re blocking the ramp.
Before you head out, make sure your battery terminals are clean and tight to provide a solid electrical connection. If you are using a manual winch, be careful on the ramp. Before you start winching, make sure you have a firm footing and good leverage, as ramps are often slippery.
Also, be aware that the winch handle can kick back and injure you at any time. It is also vital to remember that a winch is a tool for loading, not a primary tie-down. Do not rely on the winch strap to hold the boat on the trailer while you are driving down the highway.
That is not what it is designed for. Instead, always use dedicated boat tie-downs to make sure the vessel and trailer remain safely connected while on the road. You can download a handy guide to boat ramp safety and etiquette here.
It's important that your winch and boat weight are a match at the time of purchase and later on. Your boat’s weight is rarely the same when you take trip after trip. The boat shouldn’t exceed more than 75% of the winch’s weight rating. This will allow for a steep incline on a boat ramp or poor weather conditions which effectively add weight to the boat.
If your old manual winch has reached the end of the road, we highly recommend the Ark W905W Trailer Winch. It features a 5:1 ratio and is rated for up to 900kg. One of its best features is the patented magnetic snap-on handle, which stays securely attached until you are ready to remove it.
For those with larger boats needing more manual grunt, the Ark Large Boat Winch offers a 12:1 ratio and a massive 1150kg capacity. When it comes to electric power, we have a range of excellent options. The Sherpa Grunter Boat Trailer Winch is a standout for heavy-duty work.
It is suitable for boats up to 5,500kg and features an oversized motor that runs cooler and lasts longer than cheaper alternatives. Another fantastic option is the Runva Electric Trailer Winch 4.5X. This 12V unit comes with a high-strength synthetic rope and a wireless remote, making it incredibly easy to operate from a safe distance.
For those with smaller boats or tinnies, the Atlantic Cadet or Haul-It series offer great value and reliable pulling power in a more compact package.
Some components are the same whether it’s a manual or electric winch. Here is a brief list of the parts you will need:
A winch can only do its job well if the rest of the trailer is working with it. This is why you should regularly inspect your trailer rollers and trailer skids. Rollers should be able to spin freely on their axles; if they are seized or flat-spotted, they will create massive amounts of friction, forcing your winch to work much harder than it should.
Similarly, if your trailer uses skids or bunks, check the carpet or plastic covering for wear. If the bare wood or metal is exposed, it can scratch your hull and make it significantly harder to slide the boat forward. Well-maintained rollers and skids are the best way to make sure your boat trailer winch has a long and easy life.
There is no reason to let the boat ramp be the most stressful part of your day. Choose a high-quality boat trailer winch and keep up with regular maintenance to make sure that every trip ends as smoothly as it began.
Browse our full selection of boat trailer winches for trailer options online today. If you have any questions about which model is the right match for your boat’s weight or your trailer setup, our expert team is always here to help. Don’t hesitate to call the team at Boat Accessories Australia on 1300 308 161.
Boat Trailer Winches
By: dccargo on 21 May 2024Hey there, Boat Accessories Australia team! I just finished reading your article on boat trailer winches, and I gotta say, it's packed with some seriously helpful info! As a newbie to the boating world, I've been diving into all things boat-related lately, and this piece came at just the right time.
Useful comments
By: Bill Dowd on 3 November 2021I have just bought an electric winch so these comments are useful
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