Steel decked self-propelled Mountfield lawnmower with 4 in 1 cutting functions including cut & collection, rear discharge, side discharge and mulch.

The Mountfield HW531 PD 4 wheeled lawn mower has a big 21 inch cutting width and with the power drive allows the user to cover more ground & with less effort than if using a push mower. The Mountfield ST170 OHV engine has a 166cc capacity.

6 cutting height positions from 26 – 87mm adjusted via a central lever let you pick the perfect cut for the lawn. It is recommended to start on the highest cutting setting then work down gradually to avoid damaging the grass and get the best cut and finish on the lawn. The 70 litre canvas & hard top collector has an indicator to notify the user when it’s full.

Supplied as standard with the Mountfield HW 531PD is a mulch plug. Fit the plug at the rear of the mower in the grass chute and the grass cuttings will be mulched into fine pieces which are then blown back onto the ground. These nutrient rich pieces are then re-absorbed through the soil for a healthier lawn. The side discharge option is for longer grass areas where the cuttings can be left to wilt back naturally.


Model : HW531 PD

Type : 4 in 1 

Engine : Mountfield ST170 OHV

Capacity : 166cc

Starter : Recoil

Fuel : Petrol

Engine Oil : 4 stroke (0.6ml bottle included)

Drive : Yes, single speed

Cutting Width : 53cm / 21"

Cutting Heights : 6 from 26 - 87 mm

Cutting Height Adjustment : Centralised

Chassis Material : Steel

Grass Collector : Canvas with hard top

Collector Capacity : 70 litres

GrassBox Full Indicator : Yes

Mulch Kit : Yes

Side Discharge : Yes

Weight : 36kg

Warranty : Manufacturer's 5 year domestic (Terms and Conditions Apply)

Cutting Width
21 Inch / 53cm
Deck Material
Engine Manufacturer
Mowing Functions
4 in 1
Recoil / Manual

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Mountfield HW531 PD Self-Propelled Petrol Rotary Lawnmower

  • Brand: Mountfield
  • Product Code: MO294556843/M19
  • Availability: In Stock
  • Our Price: £399.00

  • RRP: £499.00
  • You save: £100.00

Tags: 4 wheel lawn mowers, rotary lawn mowers, Mountfield mowers, self-propelled lawn mowers, petrol mowers