Husqvarna Chainsaw 450 vs 455 – All You Need to Know

Husqvarna is a top-tier brand owned by the Swedish manufacturer, Husqvarna Group. Since its launch, the brand has produced state of the art chainsaws, sewing machines, mowers, etc. and Husqvarna 450 and 455 are among the top products.

Both chainsaw brands are must-have items for homeowners and professionals since they are used in a wide array of activities. Wondering which meets your needs? Fret not, in this article we will take a closer look at both chainsaws.

Husqvarna Chainsaw 450 vs 455 – Step by Step

By the end of the article, you will be in a position to determine which chainsaw is the most convenient.

Ready? Let’s cut the chase!

Although the two looks and function quite similar there exist some crucial differences. Below are the specs of each.

Husqvarna 450 vs 455 – Specifications

Husqvarna 450Husqvarna 455
Maximum speed9000rpm9000rpm
Power output3.2hp3.49hp
Bar length13 – 2015 – 20
Weight10.8 pounds12.8 pounds

Those are some of the basic similarities and differences between the two saws. Still, on that, let’s look at individual chainsaws and how best you can use them.

The Husqvarna 450

The 450 is one of the easiest chainsaws to use out there. It is lightweight, efficient and fuel consumption is economical.

It is overly recommended for homeowners and professionals who carry out light tasks.

1. How efficient is the engine?

Well, the 450 chainsaw comes with an efficient engine that has a maximum engine speed of 9000rpm and a power output of 3.2hp. As such, it is ideal for domestic tasks that don’t require much hassle.

Maybe cutting small firewood pieces, logs or short posts. Whichever the case, Husqvarna 450 will perform the task like a piece of cake.

The engine is also environment-friendly as its fuel consumption is low and emissions are kept at a minimum. As such, the chainsaw can be used in most countries that have strict environmental regulations.

Finally, the gas-powered engine requires quality unleaded gas for maximum output.

2. How easy is it to start and stop the 450 chainsaw?

Well, Husqvarna has made starting and stopping of the 450 much easier. The chainsaw comes with a couple of features to make starting a piece of cake for both warm and cold starts. How?

It comes with a Smart Start feature that makes the starting of the engine simpler by reducing the resistance felt while pulling the recoil cord. In fact, the resistance is reduced by 40%, therefore, enabling the engine to start with the first pull.

On the other hand, the choke and stop control prevent the engine from flooding.

The decompression valve makes warm starts simple by releasing compression in the cylinders experienced during starting.

Stopping the engine is as easy as pushing the start/stop switch.

3. How safe is the 450 chainsaw?

Like any top-notch equipment out there, the chainsaw comes with much-needed safety features.

It has addressed the most common safety concern – kickback – by providing a chain brake which if pushed forward, automatically stops the chain and engine hence preventing injuries.

Another crucial safety feature is the inertia activated chain brake. This comes into effect when there is a rapid movement that is triggered by kickbacks.

Other essential features include a chain catcher that catches the chain when it snaps and throttle trigger lockout that mitigates the risk of accidental throttle control operation.

4. What bar size is ideal for the 450 chainsaw?

This saw can take a bar between 13 and 20 inches. Therefore it is ideal for small tasks that don’t require much cutting. Additionally, make sure to sharpen your chain regularly for maximum output.

5. How loud is this chainsaw?

2-stroke engines are known to be loud which applies to the 450. In fact, the sound is too loud that it is paramount you wear some earplugs or any other type of hearing protection.


  • Eco-friendly since its emission is minimal
  • Pocket-friendly price in comparison to its stellar features
  • The X-Torq engine in this chainsaw is just the thing; low emission, high output, and longer usability
  • Safe to use thanks to its crucial safety features


  • Not ideal for heavy-duty tasks
  • Fuel tank capacity is too little. It can only hold 14.8 fl. oz.

The Husqvarna 455

Are you involved in heavy-duty tasks? Do you want to buy a state of the art chainsaw? Then, Husqvarna fits the bill.

The 455 is a must-have chainsaw for all professionals who carry out cumbersome tasks.

Although heavier than the 450, the chainsaw comes with the same or better safety and other features. In fact, it is more popular among farmers, homeowners, and professionals than the 450.

Let’s have a look at this awesome chainsaw.

1. How efficient is the engine?

The saw comes with a 55.5cc heavy-duty engine with a power output of 3.49hp. This makes it the most ideal saw for most professional and heavy-duty tasks.

More to this, the engine keeps emission at a minimum. Additionally, fuel consumption is reduced by 20% hence ideal for time-consuming tasks.

Another stellar feature is that the engine comes with a centrifugal air cleaning system that wards off debris from clogging your engine.

The downside of the engine is its small size that can hold 15 fl. Oz. compared to other high-end consumer saws. Nonetheless, the X-Torq engine facilitates economical fuel consumption hence you can use the saw for more than 30 minutes before refueling.

2. How easy is it to start the 455 chainsaw?

Like its counterpart the 450 saw, the 455 comes with the SmartStart feature that reduces the resistance in the recoil cord. This makes starting seamless and ensures the engine starts with the first pull.

Additionally, it also has the combined stop/choke control that prevents the engine from flooding.

Another stellar feature that helps to start easy is the decompression valve that releases compressed air in the cylinder. These and other crucial features make starting a seamless task

To stop the engine, you need to push the stop/start switch.

3. How safe is the 455?

Well, it comes with similar safety features like the 450. However, these features do not work all the time, therefore, it is prudent to wear protective clothing and accessories.

Nevertheless, the saw comes with a chain catcher that catches the chain should it snap. Additionally, it has addressed kickback risks by the inclusion of an inertia chain brake feature which activates in case of rapid movement.

Another important feature is the throttle trigger lockout that prevents accidental operation of the throttle control.

4. What bar size is ideal for the 455 saws?

The 455 chainsaw comes with a 20” chain. The saw is therefore ideal for bars 15 – 20-inch long.

This is considered as one of the longest guided bars. As such, the 455 is ideal for felling medium-sized trees, cutting firewood, branches, and logs.

5. How loud is this chainsaw?

Well, most 2-stroke engines are basically loud, which is the same case for the 455. However, improvements to the exhauster have somewhat reduced the sound.

But you’ll still need to wear earplugs as the sound is beyond the recommended levels.


  • Ideal for heavy-duty tasks that are time-consuming. Additionally, the 20” chain enables you to reach tough areas.
  • It sells at a pocket-friendly price given its top-notch features.
  • The X-Torq engine minimizes emission and its fuel consumption is economical.


  • Heavy hence you cannot carry it around.
  • The fuel capacity is low given the amount of work it handles.

How does the 450 differ from the 455?

Here, we will highlight the differences between the two chainsaws and give a candid conclusion. Without much further ado let’s look at the differences.


The 450 saw is ideal for small tasks such as cutting firewood while the 455 chainsaw is ideal heavy-duty tasks such as felling medium-sized trees.


Although both chainsaws have similar maximum speeds, the 455 has a 55.5cc engine with a power output of 3.49 hp. Therefore, the power output makes it ideal for heavy-duty tasks.

On the other hand 450’s 50.2cc and power output of 3.2 hp engine, makes it ideal for tasks that don’t require much power.


The 450 saw weighs 10.8 pounds which is lighter than the 12.8 pounds 455 chainsaw. As such, it is easier to walk around with the 450 and use it on light tasks.

Husqvarna 450 vs. 455: Which is the perfect fit?

Well, your need will determine which Husqvarna chainsaw you will choose. Outline your saw needs properly and then make an informed decision.

Over to you

Well, there you have it folks, a descriptive comparison between the Husqvarna 450 and the Husqvarna 455. So, in regard to the argument above, we see that the 450 is ideal for light tasks while 455 is ideal for heavy-duty tasks.

As earlier mentioned, let your needs become the key factor in deciding which to buy. Additionally, observe safety measures since the safety features in both saws are not guaranteed to work every time.

Having said that, its time you headed over to your nearest shop and got hold of the most ideal chainsaw.

So, which is your choice?

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