If you’ve got a medium to large lawn, there’s a point where pushing a small mower around every weekend starts to feel like unnecessarily hard work.
That’s exactly the sort of garden the Cobra MX484SPCE is designed for.
This is a substantial 48cm petrol lawnmower with a 173cc Cobra engine, electric starting and a four-speed self-propelled drive.
In other words, rather than you doing most of the pushing, the mower drives itself forward while you guide it around the lawn.
It also offers three different ways of dealing with grass clippings: collecting them, mulching them or discharging them from the side.
On paper, that’s an impressive specification.
But does it make sense for your garden?
Let’s take a closer look.
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Cobra MX484SPCE at a Glance
| Specification | Cobra MX484SPCE |
|---|---|
| Power | Petrol |
| Engine | Cobra Y173V 4-stroke |
| Engine capacity | 173cc |
| Starting | Electric push-button + recoil |
| Drive | Self-propelled |
| Drive speeds | 4 |
| Cutting width | 48cm / 19″ |
| Cutting heights | 25–75mm |
| Height settings | 6 |
| Grass collector | 65 litres |
| Cutting options | Collect, mulch, side discharge |
| Deck | Steel |
| Folding handles | Yes |
| Grass-bag indicator | Yes |
| Best suited to | Medium to large lawns |
Who Is the Cobra MX484SPCE For?
This isn’t really a mower I’d choose for a tiny patch of grass outside a terraced house.
It’s aimed much more at gardeners with:
medium to large lawns.
The combination of a wide 48cm cutting deck and self-propelled drive means you can cover substantially more ground without having to physically push the full weight of the mower.
I’d particularly consider it if:
- You have a fairly large lawn
- Your garden has slopes
- You dislike pull-starting petrol mowers
- You want adjustable drive speed
- You regularly deal with longer grass
- You want both collecting and mulching options
For a small, flat lawn, a lightweight cordless mower would probably be considerably easier to live with.
The 173cc Cobra Engine
At the heart of the mower is Cobra’s:
Y173V 173cc four-stroke petrol engine.
That’s a reasonably substantial engine for a domestic lawnmower.
The advantage of petrol remains fairly simple:
there’s no power cable and no waiting for batteries to recharge.
Fill the mower with the appropriate fuel, check the oil and you’re ready to work.
That makes petrol particularly attractive for larger gardens where battery runtime can become a consideration.
The trade-off is maintenance.
Unlike an electric mower, a petrol engine requires ongoing attention.
You’ll need to think about:
- Engine oil
- Fuel
- Air filter maintenance
- Spark plugs
- Winter storage
- General servicing
If you want virtually maintenance-free mowing, petrol probably isn’t the right choice.
But if you value power and independence from batteries, it still makes plenty of sense.
Electric Push-Button Starting
One of my favourite features of the MX484SPCE specification is:
electric starting.
Traditional petrol lawnmowers use a recoil starter.
You pull a cord.
Sometimes it starts immediately.
Sometimes it doesn’t.
The Cobra adds an electric push-button starting system, while retaining a conventional recoil starter.
That’s a genuinely useful feature rather than a gimmick.
It’s particularly appealing if you:
- Struggle with pull cords
- Have reduced upper-body strength
- Simply want an easier starting process
For gardeners who like petrol mowers but hate starting them, this could be one of the strongest reasons to consider the Cobra.
Four-Speed Self-Propelled Drive
Another major feature is the:
four-speed self-propelled drive.
The available speeds run from approximately 2.5km/h to 3.9km/h.
Why does that matter?
Because not everyone wants to walk behind a lawnmower at the same speed.
Slower settings are useful when:
- Cutting longer grass
- Working around obstacles
- Mowing awkward areas
Higher speeds can be useful when:
- Grass is relatively short
- You’re mowing long straight sections
- You simply walk more quickly
Being able to select the pace makes the mower considerably more adaptable than a basic single-speed self-propelled machine.
48cm Cutting Width
The Cobra uses a:
48cm / 19-inch cutting deck.
That’s a good size for a medium or larger domestic lawn.
A wider blade means:
fewer passes across the garden.
If you’ve ever upgraded from a small mower to a wider machine, the difference can be surprisingly noticeable.
Imagine mowing a large rectangular lawn.
Every pass covers 48cm.
Over the entire garden, that can save a significant amount of walking compared with a compact 32–36cm mower.
There is a downside.
A wider mower is:
less manoeuvrable in very tight gardens.
If your lawn is full of narrow paths, tiny sections, trees and awkward corners, a smaller machine can sometimes be easier.
Six Cutting Heights
The cutting height can be adjusted between:
25mm and 75mm
across six positions.
That gives you plenty of flexibility.
For a shorter, tidier summer lawn you can lower the deck.
If the grass has become longer, raise it before mowing.
This is important because one of the worst things you can do to a lawn is suddenly scalp long grass down to its lowest possible setting.
A better approach is to:
reduce the height gradually.
65-Litre Grass Collector
The mower comes with a:
65-litre grass bag.
That’s another feature that makes sense on larger lawns.
A small collector fills rapidly, which means constantly stopping to empty it.
The larger 65L capacity should reduce those interruptions.
There’s also a:
grass-bag full indicator.
It’s a small detail, but a useful one.
Instead of repeatedly checking whether the collector needs emptying, you can monitor its status while mowing.
Collect, Mulch or Side Discharge
One of the most useful features of the Cobra is its:
3-in-1 cutting system.
You can:
Collect
Grass clippings are collected in the 65L bag.
This is ideal when you want a clean finish.
Mulch
The grass is cut finely and returned to the lawn.
Mulching can save time because there’s no collector to empty.
The fine clippings also return nutrients to the lawn.
Side Discharge
Grass is discharged from the side of the mower.
This can be useful when tackling:
longer or rougher grass
where collecting everything isn’t practical.
Having all three options makes the mower much more versatile.
When Should You Mulch?
Mulching works best when:
the grass is reasonably dry and you’re mowing regularly.
Don’t expect brilliant mulching results if the lawn hasn’t been touched for a month and the grass is soaking wet.
The mower has to process the clippings finely enough for them to disappear back into the lawn.
For routine summer mowing, though, mulching can dramatically reduce the amount of garden waste you produce.
Steel Deck
The mower uses a:
steel cutting deck.
That contributes to the substantial feel you’d expect from this type of machine.
Steel is robust, but you should look after it.
Wet grass stuck underneath a steel deck isn’t something I’d leave there indefinitely.
After mowing, particularly in damp conditions, clean accumulated grass from the underside according to the manufacturer’s maintenance instructions.
Proper care should help prevent corrosion and keep airflow around the blade working effectively.
Folding Handles
The handles fold down for storage.
That’s particularly useful because this isn’t a tiny mower.
If you’re storing it in a:
- Garage
- Shed
- Garden store
folding the handles reduces the footprint considerably.
You still need enough floor space for the mower itself, though.
How Heavy Is It?
This is worth considering.
Cobra currently lists the mower at around:
41kg.
That’s substantially heavier than many cordless or electric lawnmowers.
During normal mowing, the self-propelled drive does much of the hard work.
But weight still matters when:
- Moving it without the engine running
- Lifting it
- Loading it into a vehicle
- Manoeuvring it around a shed
- Moving up steps
If you regularly need to carry your mower, this probably isn’t the machine I’d choose.
How Should It Handle Slopes?
This is where self-propulsion becomes particularly valuable.
Pushing a heavy petrol mower uphill repeatedly can become tiring.
The powered wheels take much of that effort away.
The adjustable speed also lets you choose a more comfortable pace.
However, always follow the manufacturer’s guidance regarding safe operation on slopes.
Self-propelled doesn’t mean suitable for every gradient.
What About Long Grass?
The combination of:
- 173cc petrol engine
- Adjustable cutting height
- Self-propelled drive
- Side discharge
makes the specification well suited to gardens where the grass occasionally gets away from you.
If the lawn is very long, I’d raise the cutting height first.
Take off the top portion.
Then return later at a lower setting.
Trying to turn an overgrown lawn into a bowling green in one pass isn’t good for either the lawn or the mower.
The Advantages of Petrol
Battery lawnmowers have improved enormously, so petrol isn’t automatically the best choice anymore.
But it still offers advantages.
With the Cobra, you don’t need to worry about:
battery runtime.
That’s useful on larger lawns.
You also don’t need:
- Multiple expensive batteries
- Battery chargers
- Extension cables
Refuel and continue mowing.
For gardeners with substantial lawns, that’s still appealing.
The Disadvantages of Petrol
There are compromises.
A petrol mower is generally:
louder, heavier and more maintenance-intensive
than a cordless alternative.
You’ll also have to store fuel safely and maintain the engine.
There’s no escaping that.
If your priority is:
quiet, lightweight and low maintenance
I’d look at cordless alternatives.
If your priority is:
power, runtime and larger-lawn capability
the petrol Cobra starts making considerably more sense.
Pros and Cons
What We Like
Electric push-button start
A particularly useful feature for anyone who dislikes traditional recoil starting.
Four-speed self-propelled drive
Lets you match the mower’s speed to the lawn and your walking pace.
48cm cutting width
Well suited to covering larger areas efficiently.
173cc petrol engine
A substantial engine for domestic mowing.
Three cutting options
Collect, mulch or side-discharge depending on conditions.
Large 65L collector
Reduces the frequency of stops when collecting clippings.
Six cutting heights
Useful for adapting to changing grass conditions.
Folding handles
Makes storage easier.
Things to Consider
It’s heavy
At around 41kg, this isn’t a mower you’ll want to carry around unnecessarily.
Petrol requires maintenance
Oil, filters, spark plugs and general servicing all need consideration.
Probably excessive for tiny lawns
A compact cordless mower would be easier to manoeuvre and store.
No rear roller
If your main priority is creating strong traditional lawn stripes, you may prefer a dedicated rear-roller mower.
Cobra MX484SPCE vs Cordless Mowers
The choice ultimately comes down to your garden.
For a small suburban lawn, I’d lean towards:
cordless.
It’s quieter, lighter and simpler.
But as lawn size increases, the advantages of the Cobra become clearer.
You get:
- No battery-runtime anxiety
- Self-propelled drive
- Wide cutting deck
- Large collector
- Petrol power
- Multiple cutting options
The Cobra makes more sense when mowing feels like a substantial gardening job rather than a ten-minute task.
Who Should Buy the Cobra MX484SPCE?
I’d put it on the shortlist if you have:
a medium to large lawn and want a substantial self-propelled petrol mower.
It’s particularly appealing if you want the power and runtime of petrol but dislike pull-starting engines.
The electric start and variable drive speeds address two of the traditional annoyances associated with petrol lawnmowers.
Who Should Look Elsewhere?
I’d look at something smaller if:
- Your lawn is tiny
- You need to carry the mower up steps
- Storage space is extremely limited
- You want virtually zero maintenance
- Noise is a major concern
- You strongly prefer battery-powered equipment
Likewise, gardeners specifically wanting a striped lawn should investigate rear-roller models.
Our Verdict
The Cobra MX484SPCE has a specification that makes a lot of sense for a particular type of gardener:
someone with enough grass to justify a proper petrol mower.
Its standout features aren’t flashy technology.
They’re practical features that can make mowing easier.
The electric starter removes much of the frustration associated with recoil starting.
The four-speed self-propelled system helps move a substantial mower around larger lawns.
The 48cm cutting width covers ground efficiently.
And the ability to collect, mulch or side-discharge means you can adapt the mower to different conditions throughout the growing season.
The main trade-offs are exactly what you’d expect from a substantial petrol mower:
weight, noise and maintenance.
For a postage-stamp lawn, it’s overkill.
For a larger lawn where a small cordless mower would mean endless passes and battery changes, it’s a much more convincing proposition.
The key question isn’t whether the Cobra MX484SPCE is the most technologically advanced mower available.
It’s whether its combination of petrol power, self-propulsion, electric starting and 48cm cutting width suits the way you actually mow.
For medium and larger lawns, it deserves consideration.
Check the Latest Cobra MX484SPCE Price on Amazon
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Cobra MX484SPCE FAQs
Is the Cobra MX484SPCE self-propelled?
Yes. It has a four-speed self-propelled drive.
Does the Cobra MX484SPCE have electric start?
Yes. It features electric push-button starting as well as a recoil starting system.
What engine does it use?
It uses a Cobra Y173V 173cc four-stroke petrol engine.
What is the cutting width?
The cutting width is 48cm / 19 inches.
What cutting heights are available?
The mower offers six cutting-height settings covering approximately 25–75mm.
Can the Cobra MX484SPCE mulch grass?
Yes. It offers collecting, mulching and side-discharge modes.
How big is the grass collector?
The grass bag has a capacity of 65 litres.
Is it suitable for large lawns?
Cobra describes the model as suitable for medium to large lawns.
Is it suitable for small gardens?
It will cut a small lawn, but its size and weight mean a smaller cordless or electric mower is likely to be more convenient.
Does it have a rear roller?
No. It’s a four-wheeled lawnmower rather than a dedicated rear-roller model.
Is a petrol mower better than cordless?
Neither is automatically better. Petrol is particularly useful for larger areas and long mowing sessions, while cordless machines are generally quieter, lighter and require less engine maintenance.
Final Thoughts
Buying a lawnmower should really start with the size and layout of your lawn.
For a tiny garden, keep things simple.
But once you’re maintaining a larger area of grass, features such as:
self-propulsion, cutting width and collector capacity
start to matter much more.
That’s where the Cobra MX484SPCE becomes interesting.
It’s built around traditional petrol-mower strengths while adding electric starting and adjustable drive speeds that make the experience more convenient.
If that matches your garden, it’s certainly worth comparing with other self-propelled petrol mowers before making your decision.
View the Cobra MX484SPCE on Amazon
