Petrol
HYUNDAI-HYM510SP
Hyundai

HYM510SP

"Cheap self-propelled petrol with steel deck"

4.2 (612) · Value score: 7.8 / 10
RRP New
£329
Manufacturer
Buy Now
£329
Lowest UK retailer
Used Avg
£170
Facebook / eBay UK avg

Our verdict

The bottom line

Punches above its weight on cut width and deck quality. The engine is the weak link — capable but not premium. Good value new, fair value used.

Pros & cons

Pros

  • 51cm cut is wide for the price
  • Steel deck unusual at this price point
  • Self-propelled with electric start option
  • Hyundai 3-year warranty new

Cons

  • Hyundai branded but engine is generic
  • Heavier than rivals
  • Parts can be slow to source
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Full specs

TypePetrol
Cut width51 cm
Engine / PowerHyundai 173cc OHV
Weight34 kg
DeckSteel
Self-propelledYes
Rear rollerNo
MulchingYes
Cutting heights6 positions
Bag capacity70 L
Suited to lawnLarge
Noise level95 dB

Buying second-hand

Used-market tip

£130–200 is realistic used. Steel deck means rust is the killer — flip it and inspect the underside thoroughly. Engine starts can degrade over winter; ask the seller to fire it from cold. The 51cm blade is unusual so spares cost more than 46cm rivals — factor that in.

Where to look: Facebook Marketplace and Gumtree are usually 20–30% cheaper than eBay UK for petrol mowers because most sellers want local pickup. eBay tends to win on cordless and electric (lighter, easier to ship). Always insist on a starting demonstration before paying.

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