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Hyundai HYM510SPEZ 20"/51cm 196cc Electric-Start Self-Propelled Petrol Lawnmower

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360 degree swivelling front wheels: Allows the mower to be turned on its own footprint

508mm / 20" cutting width: Ideal for medium to large lawns

196cc Hyundai 4-stroke petrol engine: Provides easy starting and low fuel consumption

Electric-start with recoil backup: Get started at the push of a button

Self-propelled: No need to push - simply select from 4 walking speeds and steer

6 adjustable cutting heights: Including an ultra-low 25mm cut for a 'bowling green' finish on your lawn

70L grass collector bag: Minimises time spent emptying cuttings

Foldable handles: Compact to transport and store in your shed or garage

Comes with 2 cup/can holders: Keep refreshed whilst mowing the lawn

Minimal set-up required: Also includes 600ml SA30 oil to get going out of the box

Peace of mind: 3 year Hyundai home-use warranty* / 1 year commercial warranty*


Zero-Turn Petrol Lawn Mower

The HYM510SPEZ is a heavy-duty zero-turn lawn mower from Hyundai with electric push-button start. With a similar design to a trolley or pram, its swivelling front wheels allow it to ‘spin on its own footprint’ 360 degrees, meaning you can turn on the spot to mow awkward-shaped lawns with added ease.

The Hyundai HYM510SPEZ Lawn Mower is powered by an impressive Hyundai 196cc economical petrol 4-stroke engine for quick and efficient cutting.

Self-Propelled Petrol Mower

This mower also features a self-propelled system with 4 variable speeds so all you have to do is pick your most comfortable speed and steer - no pushing required! Mowing has never been easier.

Electric-Start Lawn Mower

The HYM510SPEZ features an electronic CDI ignition system and an easy push-button electric start as well as recoil backup for an effortless start each and every time.

Easy To Steer

Great for all garden coverage, the zero-turn feature on this powerful mower leaves no area of grass uncut - perfect for awkward areas and curved borders that are a struggle with a traditional lawnmower.

Its pivoting front axle-mounted wheels let you effortlessly glide through turns and obstacles and moves over rough terrain for an even cut. The front castor wheels can also be locked into place allowing easy straight line cutting also.

508mm Cutting Width

With a cutting width of 508mm / 20", this mower is ideal for medium to large lawns and gardens.

For the perfect, tailored cut on your lawn, the HYM510SPEZ can be easily adjusted between its six different cutting heights - up to a 75mm option if you’re trimming rougher ground or doing a first cut - by using a single height adjusting lever, giving you complete control over your lawn care needs. Thanks to the ease at which this mower can be turned, Hyundai has added the option of an extra-low cut (for smooth, flat lawns) to create bowling green-like finishes.

The HYM510SPEZ's extra-large 70L grass collector bag features a high airflow plastic top with a level indicator to ensure maximum grass pickup. As it's so large, it also means you'll spend less time having to empty the cuttings, reducing your overall mowing time.

Safe and Easy To Use

Designed with your safety in mind, the HYM510SPEZ includes OPC (Operator Presence Control) technology that ensures the engine will not run if you let go of the handle.

With minimal assembly required and 600ml engine oil included, you can be up and running in minutes to get that first cut on your lawn done as quick as possible!

The HYM510SPEZ even comes with cup holders to hold those all important ice-cold drinks in the summer to keep you cool and comfortable whilst mowing.

After use, the deck can be quickly and easily cleaned underneath by connecting your garden hose and swilling the bottom of the deck with water.

The soft grip handles can be folded forwards oven the main body for extra-compact storage to save space in your garden shed or garage.

3 Year Warranty

As with all of our Hyundai Lawn Mower range, the HYM510SPEZ comes with our Hyundai 3 year home-use warranty* / 1 year commercial warranty* (terms apply) for added peace of mind.

At A Glance:

  • 510mm/20” cutting width for medium to large gardens
  • 360 degree swivelling front wheels which allow the mower to be turned on its own footprint
  • Hyundai 196cc OHV 4-stroke petrol engine
  • Self-propelled so drives itself – all you need to do is steer
  • Electric push-button start
  • 6 adjustable cutting heights – 17-75mm
  • Extra-large 70L grass collector
  • Mulching option for a green, healthy lawn
  • Foldable handles for compact storage
  • OPC technology for extra safety
  • Tool-free assembly
  • 3 year Hyundai home-use* / 1 year commercial warranty*


Catcher type
Half Plastic With Polyester Bag
Catcher volume (l)
Cut options
Rear Discharge, Mulching
Cutting height max (mm)
Cutting height min (mm)
Cutting positions
Cutting width (mm)
Deck material
Engine capacity (cc)
Engine model
Engine oil
Engine oil capacity (ml)
Engine size (cc)
Engine type
4-Stroke OHV Single Cylinder
For lawns up to
Large Lawns - Above 2000sq. ft
Unleaded Petrol
Fuel capacity (l)
Fuel power source
Fully assembled dimensions
1580 x 550 x 1050 (H x W x L) (mm)
Gross weight (kg)
Handle type
Soft Grip
Model ean
Net weight (kg)
Packaged dimensions
500 x 570 x 925 (H x W x L) (mm)
Power (hp)
Product type
Lawn Mower
Quick clean hose connector
Rear roller
Safety features
Operator Presence Control
Start method
Electric or Recoil
Warranty (years)
Wheel diameter (mm)
Front: 203, Rear: 254

Customer Reviews

Based on 5 reviews
Debra Talbot
Awesome bit of kit!

This machine is amazing - it was easy to put together, started up easily and cuts like a dream! As a tennis fan for many years, I've always wanted a shorter lawn. This lawnmower cuts incredibly low, leaving a tennis court-like effect - I'm absolutely delighted with my purchase and would highly recommend it to anyone with a relatively flat lawn to maintain!

Michael Errington
Turning with ease

This electric mower is great - the electric start and turning wheels make mowing the lawn a breeze. The front wheel set up also provides a suspension-like effect when mowing over uneven ground, which is fantastic. Unfortunately, no oil is included, which is disappointing.

Lynda Lark
Excellent Lawn mower

We got this as our initial petrol lawnmower after looking at the reviews. I normally let my husband do the grass cutting, however, after trying it out I will be using it again. The swivelling front wheels made it a joy to use, not a task.

Krishna Pathak
Excellent mower

This mower is great, especially with the electric start. My only complaint is that the tread on the driven wheels is quite shallow, causing some wheel-spinning. Delivery was speedy, however the courier company let it down.

Trevor Norman
Manoeuvrability is the Key

Negotiating flower beds and trees is a breeze with this machine, thanks to its electric and manual starting capabilities and choice of 4 speeds. As a silver surfer, I wanted something less demanding and the castor wheels make it ideal for my large, uneven lawn with its many flower beds. I've been a proud owner of a Hyundai generator for 6 years and this unit appears to be of the same high standard.