Hyundai 18" / 46cm Self-Propelled Petrol Lawnmower, Electric Start, 139cc - HYM18150SPEX

Authorised Reseller
Authorised Distributor

Free UK Mainland Delivery over £50 ex. VAT!

Available (Next Working Day Delivery (if ordered by 2pm))

Guaranteed Stock
Order now for delivery on
Tue 23rd Jun 2026

Quote Ref: @141344

Product ID: HYM18150SPEX

Barcode: 5059608481723

Manufacturer: Hyundai

Warranty: Click here for info

Warranty & Replacements

3 YEAR WARRANTY for all portable power products except:

2 YEAR WARRANTY for Air Compressors, Welders, Robotic Lawnmowers

2 YEAR WARRANTY for all 1500rpm Diesel Generators, subject to service records and maximum 500h/year (See separate warranty terms).

1 YEAR WARRANTY on all 3000rpm air-cooled diesel products, maximum 1000h.

All of the Hyundai products are covered by a manufacturers warranty covering both faulty materials and faulty workmanship, it does not cover general wear and tear or damage. This excludes products or parts of products that are consumables or that become faulty to due to general wear and tear.

In terms of a faulty item being replaced, fixed or refunded, Hyundai Power Equipment is only a reseller of any goods or services received through our website, therefore an individual product's warranty would be subject to the supplier's terms and conditions and will be maintained by the company of origin. Hyundai Power Equipment will be happy to help you contact those companies who will maintain your products individual warranty, however, we are not responsible for any product directly.

To see full Hyundai warranty information click here

Price: 241.33 ex VAT) £289.60 (inc VAT)

289.60 2026-07-20
Error! Sorry there has been a problem adding your items to the cart.
Available at checkout!

Hyundai 18" / 46cm Self-Propelled Petrol Lawnmower, Electric Start, 139cc - HYM18150SPEX

Push-Button Start on a Mid-Size Workhorse

The 18" / 46cm cutting width hits a sweet spot for many gardens. Wide enough to make decent progress, but not so large that storage becomes an issue. The Hyundai HYM18150SPEX builds on this with electric start convenience and a 60L collection bag that lets you mow longer between emptying.

This is a self-propelled machine with a reliable 139cc engine. The electric start means no more pulling a cord to get going. Press the button, the engine fires, and you're underway. If the battery ever runs flat, the recoil backup is there.

Key Benefits

Start Without the Strain

Electric start uses a rechargeable battery and onboard motor to turn the engine over. No pulling, no resistance. Just press and mow. The recoil remains as backup for the rare occasion you need it.

Mid-Size Efficiency

An 18" / 46cm cutting width covers more ground per pass than a 17" mower, reducing the number of stripes needed. The 60L bag holds more clippings, so you spend less time walking to the compost heap. Does this model have a turbo fan for improved grass collection?

Three Ways to Handle Clippings

Mulch finely chopped grass back into the lawn. Discharge out the side when conditions are dry. Discharge from the rear for a quick pass and rear collect.. This model focuses on these four modes, covering most situations.

Who Is This For?

Ideal for:

  • Owners of medium gardens (approximately 500m² to 1,000m²)
  • Those who want electric start without stepping up to a larger engine
  • Gardeners who prefer a larger collection bag over constant emptying
  • Users looking for a balance of size, power, and convenience

Not ideal for:

  • Small lawns where a 17" mower would be easier to manoeuvre
  • Large lawns over 1,000m² (consider a 20" or larger model)
  • Those who specifically need rear bagging (this model uses side/rear discharge and mulching)

Specifications

Charger Plug UK plug
Collection Bag 60L polyester bag with hard plastic cover
Cut Options Mulch, rear discharge, side discharge
Cutting Heights 25mm – 75mm (7 positions)
Cutting Width 18" / 46cm
Deck Material Steel
Engine 139cc four-stroke petrol
Front Wheels 178mm
Fuel Unleaded petrol
Fuel Tank Capacity 1.5L
Model HYM18150SPEX
Power Output 3.7hp / 2.7kW
Product Type Petrol Lawnmower
Propulsion Self-propelled (rear wheel drive)
Rear Wheels 254mm
Start Method Electric start with recoil backup
Warranty 3 years (home) / 1 year (commercial)
Weight 35kg

Brand: Hyundai

Identifier: HYM18150SPEX


Thank you! Your review has been submitted for approval.

Item Details

Brand new packaged items only.

Comes with a full manufacturer warranty (not including consumable products).

Please make use of any product reviews or youtube clips we have available to learn more about the item.

This item is usually delivered within 1 working day(s).

Website Details

SSL Certified Secure website to ensure secure online ordering.

Please return the item/s if not suitable for a full refund (within 7 working days of receipt).

We guarantee security of all your personal details, we do not pass on any customer information.

Accept all payment methods including all major Credit Cards, Paypal and Amazon Payments.


Ordering

Order online now using our Secure SSL Certified Secure website.

Add this product to your basket and come back at any time to complete the order.

Order by phone on 01737783101.

Order with an official purchase order by emailing [email protected]. We will check your account status or if you do not hold an account we will credit check your organisation, confirm and process your order. Please note the first order(s) will always need to be paid upfront unless you are a government linked organisation. Goods remain the property of Sitebox Ltd until paid for in full as per our full terms and conditions.

Warranty Information

Warranty & Replacements

3 YEAR WARRANTY for all portable power products except:

2 YEAR WARRANTY for Air Compressors, Welders, Robotic Lawnmowers

2 YEAR WARRANTY for all 1500rpm Diesel Generators, subject to service records and maximum 500h/year (See separate warranty terms).

1 YEAR WARRANTY on all 3000rpm air-cooled diesel products, maximum 1000h.

All of the Hyundai products are covered by a manufacturers warranty covering both faulty materials and faulty workmanship, it does not cover general wear and tear or damage. This excludes products or parts of products that are consumables or that become faulty to due to general wear and tear.

In terms of a faulty item being replaced, fixed or refunded, Hyundai Power Equipment is only a reseller of any goods or services received through our website, therefore an individual product's warranty would be subject to the supplier's terms and conditions and will be maintained by the company of origin. Hyundai Power Equipment will be happy to help you contact those companies who will maintain your products individual warranty, however, we are not responsible for any product directly.

To see full Hyundai warranty information click here