The Premium 520 SP-h self propelled 4 in 1 petrol mower from AL-KO has a large cutting width of 51cm/20 inches, the largest in the range, with single speed and powered by a Honda GCVx170 petrol engine. The taller MaxAirFlow steel cutter deck improves grass collection and helps to prevent the discharge channel from becoming blocked. 

The 4 in 1 function allows the user to choose between cut and collect, rear discharge, side discharge and mulching. Cut and collect the clippings into the EasyClick 70 litre grass collector with fill level indicator to let the user know when it needs emptying. Rear discharge ejects the cuttings from the rear of the mower where they can wilt back naturally. Side discharge ejects the clippings from the side of the of the mower into neat rows as you mow. Mulching is particularly beneficial, especially in hotter, drier conditions. Mulching reduces the clippings into tiny pieces and blows them back on to the lawn. This then provides the lawn with additional moisture and nutrients and promotes healthier regrowth. 

7 height adjustments ranging through 30-80mm that can be easily adjusted with the spring assisted central lever. Start with the highest setting and work your way down to get the best cut and finish for your lawn. 


  • 70 litre Easy Click rigid grass collector designed for optimum airflow which improves the filling performance. The collector can be re-attached easier with a guide rail. Fill level indicator to alert the user when the collector is full.
  • MAXAIRFLOW Steel Deck: A deeper cutter deck with larger discharge channel increases the airflow so the grass clippings can be thrown higher, right to the back of the grass box. The box can then be filled to the top more effectively and the discharge channel doesn’t get blocked.
  • 4INONE Function: Mow, collect, side discharge and mulch
  • Wide XXL rear wheels (280mm) with double ball bearings ensure easy manoeuvrability
  • Euro Compliant Honda 4-stroke engine


  • Model: Highline 51.0 SP-H
  • Type: Four wheel
  • Lawn Size: Up to 1,800m2
  • Blade Type: Rotary
  • Cutting Width: 51cm / 20 inch
  • Engine: Honda GCV 170
  • Displacement: 167cc
  • Power: 3.2kW @ 2900rpm
  • Starter: Recoil
  • Drive: Yes, single speed (3.5 km/h)
  • Cutting Deck: MaxAirFlow Steel
  • Fuel: Petrol
  • Engine Oil: 4 stroke (0.6l bottle included)
  • Cutting Height Adjustment: Central, Spring assisted lever
  • Cutting Heights: 7 positions from 30 - 80mm
  • Collector Size: 70l
  • Collector Type: EasyClick rigid with guide rail and fill indicator
  • Mulching: Yes
  • Side Discharge: Yes
  • Wheel Size: 200 / 280mm, ball bearings
  • Weight:  36.5 kg
  • Warranty: Manufacturer's 5 year for domestic use only (Terms & Conditions Apply)

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AL-KO Premium 520 SP-H Self-Propelled 4IN1 Petrol Lawnmower

  • Our Price: £549.00

  • RRP: £599.00
  • You save: £50.00