MOUNTFIELD HW531 PD Petrol Lawn Mower

SKU: M5-HW531-PD

We’ll include a 600ml bottle of 10W30 engine oil when you buy this lawnmower, free of charge.

Four functions in one rugged lawn mower, the HW531 PD can collect, mulch and side or rear discharge in a very attractive package.

RRP: £539

Our Price: £469.00 (inc VAT)

Out of stock, available to pre-order

(8 customer reviews)

Out of stock, available to pre-order

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About the MOUNTFIELD HW531 PD Petrol Lawn Mower

Big wheels and big performance from this self propelled 4-in-1 mower.

The Mountfield HW531 PD stands out from the crowd with its versatile 4-in-1 function combination. It’s certainly striking to look at, with its extra large 280 mm diameter rear wheels and red steel finish.

Mulch, discharge or collect

Not only can this mower bag the grass cuttings as you mow, it also comes with the ability to discharge to the side or rear, and has a mulching plug. Mulching cuts grass clippings into fine particles that are then blown into the lawn, providing a fertilisation function while also eliminating the time you would normally take to stop and empty a collector, but still leaving a clean finish. This range of options allows you to choose the perfect solution for your lawn and try out the different modes to see what works best for you and your garden.

Smooth cutting for a smooth finish

The extra rugged wheels mean you can achieve a much smoother finish on uneven terrain. They also enable you to achieve a higher cut should you wish, with this mower offering a cutting height range of 25-80 mm, capable of providing short and long cuts without trouble.

Self propelled by a Mountfield engine

As well as packing a whole host of features into an attractive package, the HW31 PD is self propelled. Using the drive lever you can engage and disengage the mower with ease, meaning pushing your machine around the garden will become a thing of the past. This is powered by the Mountfield ST170 166cc OHV engine, while the cutting deck is an efficient 53cm, allowing you to cut lawns with longer grass and up to 50m x 50m.


This machine comes with a 5 year conditional warranty

MOUNTFIELD HW531 PD Petrol Lawn Mower Technical Information

  • Engine brand: Mountfield
  • Engine type: ST170 Autochoke OHV
  • Engine capacity: 166 cc
  • Net power output: 2.60kW @ 2900 rpm
  • Starting method: recoil
  • Transmission: single speed 3.8km/h
  • Drive: self propelled
  • Cutting width: 53 cm/ 21 inch
  • Cutting heights: 25-80 mm (5 positions)
  • Cutting height adjustment: single point
  • Roller: no
  • Collecting: yes
  • Mulching: yes
  • Collector: canvas with hard top 70 litres
  • Chassis: steel
  • Fuel tank capacity: 1.0 litre
  • Lawn size:​ 50 m x 50 m
  • Collapsible handles: quick release
  • Safety features: operator presence control
  • Included accessories: mulching plug & side discharge chute
  • Wheels: front 200 mm rear 280 mm
  • Warranty: 5 years ( terms and conditions apply)
  • dB(A) rating vibration level: 98
  • Weight: 36 kg

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MOUNTFIELD HW531 PD Petrol Lawn Mower Reviews

8 reviews for MOUNTFIELD HW531 PD Petrol Lawn Mower

  1. John Morgan

    Currently shopping for a second one, I have this mower and I have worked it hard, really hard and it does not let me down, I destroyed my
    al-ko mower which was a lot more expensive. So I’m buying another one of these.

  2. Jon Pearse

    An excellent machine. It is extremely robust and does eat up the lawn very quickly

  3. Steve Rogers

    Excellent mower
    I have a large lawn that is bumpy and full of moss where the ground is so wet My older wasn’t big enough or up to the job always having to go over twice and never quite right
    This mower is fantastic . It cut the lawn to where I wanted it straight away in one cut
    Plenty of power. Perfect for the job
    Came next day delivery. Very well packed. With the free engine oil
    Very easy to assemble.
    Starts first time . No pumping a fuel bulb

  4. Customer

    Very pleased with our purchase….first time used ‘Garden machinery direct’ and most certainly won’t be the last! From ordering, pricing and information needed all was perfect… Thankyou!

  5. Mrs Edwards (923835 )

    Excellent product delivered on time

  6. Gerald Sheehan

    Good product. Started first time. Some advice on the amount of oil to put in would be helpful as the clear oil makes it difficult to read the dipstick

  7. Chris Howes

    A good efficient mower for an average sized lawn which doesn’t squash the grass before it cuts, giving a good finish.

  8. James Crowther

    Excellent, easy to assemble comes complete with oil.

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