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Atco Classic 18S 3-in-1 Self-Propelled Petrol Lawnmower

Original price was: £339.00.Current price is: £299.00.

  • A traditional petrol rotary mower from a traditional British brand!
  • Premium Stiga OHV engine for powerful performance and unfailing reliability
  • Self-propelled transmission for low-effort mowing on slopes and lumpy grass
  • Multi-stage height of cut means you can achieve the finish you prefer
  • Ergonomic handlebar folds down to help save space in the shed, garage or car boot
  • Collector holds a substantial 60 litres of cut grass – emptying stops will be few and far between
  • Strong steel mower deck ensures durability is not in question
  • Deck-wash port -removing performance limiting debris from the undercarriage couldn’t be easier
  • Extended five-year manufacturer’s warranty
Atco Classic 18S
Atco Classic 18S 3-in-1 Self-Propelled Petrol Lawnmower £339.00 Original price was: £339.00.£299.00Current price is: £299.00.
Atco Classic 18S
Atco Classic 18S 3-in-1 Self-Propelled Petrol Lawnmower
£339.00 Original price was: £339.00.£299.00Current price is: £299.00.
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Atco Classic 18S 3-in-1 Self-Propelled Petrol Lawnmower

From top UK brand, Atco, the Classic 18S is a versatile, three-in-one petrol rotary mower that’s capable of handling typically variable British conditions!

At the core of the Atco Classic 18S is a Stiga ST 140 engine; a top-quality, 139cc four-stroke air-cooled motor, which benefits from OHV technology – you’ll enjoy low fuel costs with reduced exhaust emissions, less fatigue inducing vibration and a cut in neighbour annoying noise. The engine is rated at a hefty 3hp, and has been equipped with a roomy 0.75-litre fuel tank for extended runtimes.

Capable of either bagging, rear-discharging or mulching clippings – with the latter mode getting the job done around 30% faster – the Atco Classic 18S 3-in-1 Self-Propelled Petrol Lawnmower can be set-up to achieve great results, whatever the grass length you’re tackling.

It boasts power-driven rear wheels, which take all the strain out of traversing slopes and rough ground, and it benefits from a generous 46cm cutting-width, which ensures a good amount of ground is covered with each and every pass.

The Atco Classic 18S 3-in-1 Self-Propelled Petrol Lawnmower’s ‘Hi-Wheel’ design not only provides scuff-free traction, but also makes it much easier to manoeuvre in overgrown grass.

A six-step height of cut – simple to set using only one lever – ensures you’ll be able to deal with variations in grass conditions through the growing season; a steel chassis provide a robust cutting platform, and contributes to Atco’s ability to offer a lengthy five-year warranty for homeowner use*.

With the Atco Classic 18S you’ll also get a ‘catcher full’ indicator, which prevents the discharge chute becoming clogged by overfilling; and a deck-wash port, which makes it easy to remove corrosive, performance inhibiting grass from the deck’s underside.

You’ll find four-stroke engine oil here.

* Ts & Cs apply – to maintain a valid warranty, the machine must be serviced annually from year two onwards by an authorised dealer

Additional information



Engine Make


Engine Model

ST 140 OHV with Autochoke

Engine Capacity


Engine Power

3hp / 2.2kW @ 2900rpm

Engine Starting System


Engine Fuel-Tank Capacity

0.75 Litres


Self-Propelled (3.7km/h)

Cutting Width


Cutting Heights

22-80mm (6 Positions)

Height Adjustment

Single Lever

Grass Collector

60 Litres – Textile

‘Grassbag Full’ Indicator




Cutting Deck


Deck Washout Port





Front 200mm / Rear 280mm – Ball-Bearing Mounted

Safety Features

Operator Presence Control

Sound Level

96dB (A)

Lawn Size

Up to 800m2

Product Weight



5 Years


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Shipping Info

Shipping Info

If you’re buying a boxed product, we aim to get your order delivered next working day – UK mainland where possible.

If you’re buying a tractor or ride-on mower – a special order item – it could be slightly longer, as we need to PDI the machine.

We do try and van-deliver these machines if we can, as this gives us a chance to demonstrate the product, and to ensure you’re happy and confident with your purchase.

If we can’t van-deliver your machine, as you’re out of our local delivery area, the tractor will be sent on a pallet via a courage company. They will then contact you directly to book a specific day and time that suits you.