MOUNTFIELD HP42 Petrol Lawnmower
Effortlessly maintain your lawn with the Mountfield HP42. With a 41 cm cutting deck, mulching plug, and 60-litre collector, this compact mower combines convenience, control, and powerful performance in one easy-to-store design.
RRP: £259
Our Price: £229.00 (inc VAT)
In stock
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About the MOUNTFIELD HP42 Petrol Lawnmower
Powerful and Easy Lawn Care for Every Gardener
The Mountfield HP42 petrol lawnmower is designed to make lawn maintenance simple, even for first-time users. Its hand-propelled operation gives you full control, ideal for smaller gardens or tighter areas. Built for those who prefer to set their own pace, this mower is light, efficient, and comfortable to manoeuvre.
Reliable Performance with a Trusted Engine
At the heart of the HP42 is a 123cc STIGA ST120 Autochoke engine. This engine offers reliable starting and consistent performance across a range of conditions. The Autochoke feature simplifies startup, just pull the cord and begin mowing. Whether the lawn is damp or dry, this engine keeps you going without hassle.
41 cm Cutting Width for Efficient Coverage
The HP42 features a 41 cm cutting deck, giving an excellent balance between coverage and control. It helps you navigate around flower beds, borders, and other obstacles with ease. This width is perfect for small to medium-sized gardens, delivering clean results without needing multiple passes.
Customise Your Cut with Six Height Settings
You can choose from six cutting heights using a single central lever. The height ranges from 25 mm to 70 mm. This makes it easy to tailor your mowing depending on the grass type, time of year, or weather conditions. Whether you prefer a short, summer trim or a longer cut, the HP42 adapts.
Large Grass Collector with Handy Indicator
The 60-litre hybrid canvas grass collector offers generous capacity for clippings. You’ll spend less time stopping to empty the bag. An integrated full indicator lets you know when it’s time to empty, preventing overfilling and helping to maintain airflow and performance. It’s practical and saves time.
Optional Mulching for Natural Lawn Care
If you prefer not to collect grass clippings, the HP42 includes a mulching plug. This accessory finely chops the clippings and redistributes them onto the lawn. The result is a natural fertiliser that helps improve your lawn’s health and moisture retention. It’s an eco-friendly and efficient mowing option.
Built for Durability and Long-Term Use
This mower is constructed with a strong steel chassis designed to handle everyday garden challenges. Despite its toughness, it remains lightweight at only 23 kg. The steel build provides stability while also protecting the mower from general wear and garden debris.
Compact and Easy to Store
The HP42 is ideal for homes with limited storage space. The handlebars fold down easily, making it easier to store. Whether you store it in a shed or garage, the compact design ensures it fits neatly out of the way when not in use.
A Smart Choice for Everyday Gardeners
If you’re looking for an efficient, easy-to-use petrol lawnmower, the Mountfield HP42 ticks all the boxes. With user-friendly features, reliable power, and great cutting performance, it’s a solid investment for any gardener wanting quality results without overcomplication.
 This machine is offered with a 2 -year domestic warranty.
MOUNTFIELD HP42 Petrol Lawnmower Technical Information
- ENGINE
- Engine Brand: Mountfield
- Engine Type: ST120 OHV
- Engine Capacity: 123cc
- Net Power Output: 1.90kW @ 2900rpm
- Starting Method: Recoil
- DRIVE
- Drive: Hand Propelled
- CUTTING
- Cutting Width: 41cm /16″
- Cutting Heights: 22-65mm (6 Positions)
- Cutting Height Adjustment: Single Lever
- Roller: No
- Collecting: Yes
- Mulching: Yes
- Collector: Canvas with hard top 60 litres
- GENERAL
- Chassis Steel
- Fuel Tank Capacity: 0.75 Litres
- Lawn Size: 20m x 20m
- Collapsible Handles: Hand Wheel
- Safety Features: Operator Presence Control
- Included Accessories: Mulching Plug
- Wheels: Front 200mm Rear 200mm
- Warranty: 2 Years
- Washing Link: No
- Vibration Level: 4
- dB(A) Rating: 94
- Weight: 23kg
John Day –
Very pleased with purchase, only used once so far due to weather, but does what I wanted,happy.
Peter Jordain –
Bought this to replace a forty odd year old Hayter which has provided Sterling service but was falling apart and becoming difficult to start. This is well made, lighter and starts first time, the wife can use it which is just as well as I’ve just had my knee replaced so will be out of action for a bit.
Peter Ball –
Delivery time was a tad long due to high demand but otherwise very good service and product
Scott richmond –
Bought this to replace my 40 year old petrol lawn mower and wished I had done it earlier, its a great mower for the price, easy to start and handle on the grass, the height adjustment couldnt be easier…well recommended purchase
Nick Walmsley –
Absolute garbage. Used it twice last year. Now it won’t start. Drained fuel – added new fuel. Nothing. Will be claiming on the warranty. Simply not fit for purpose. My old Stiga never missed a beat and was fine with any old fuel left in it over winter. Pathetic.
Garden Machinery Direct –
Please be advised that Mountfield do not cover contaminated/stale fuel under warranty as per http://www.mountfieldlawnmowers.co.uk/warranty-and-after-sales-support
Ian Gough –
Easy to assemble, started first pull of the cord, seems to be a superb mower for the price range
Julie Grech –
5* very pleased with purchase. Have previously owned a Mountfield for quite a number of years so know they are reliable.
Julie Grech –
Mountfield HP42 Petrol lawnmower
Excellent mower, very easy to use. Have previously owned a Mountfield for quite a number if years so know they are reliable.
Michael –
Can’t rate performance because it’s too late to cut my lawn but I bought this model on my next door neighbour’s advice he has this model and can’t fault it. It took less than 15 minutes to assemble the machine and it looks very impressive so I’m now waiting for the right conditions to fire it up and start cutting
Paul –
Instructions a little hard to follow, however, the machine is exactly what we needed for the garden.
Very light to use and starts first time.
Excellent service from the supplier!!
Brian White –
Very well packaged, very easy to start does a very good job
Caroline Rogers –
Very good lawnmower would highly recommend
Sharon Young –
We are very pleased with our purchase. The lawn mower was delivered promptly on the specified day. Easy assembly with clear instruction. Took only a few minutes before we were using our new machine, with the oil that came with it. One very happy customer.
Mr Stephen Barratt –
Starts first time, easy assembly, easy and comfortable to handle and quiet. Excellent value for money.
Joanna –
This is excellent, only used it once but very happy with it
Putting it together was a little challenge as instructions not easy to follow
Norman Smith –
Easy to start, quiet, large collection bag & very easy to use
customer Tom Sharp. –
Very easy to handle cuts beautifully.
rob –
Prompt delivery, easy to assemble and use
Ed Cranford –
All assembled but owing to other workload in my home, so far I’ve not used it at all. I’m sure it will be fine but to stop Trustpilot badgering me for a review, here it is.
Mrs. Elizabeth Wilkinson –
It was assembled without difficulty, started first time and made an excellent job of cutting the grass. Although this model does not have power steering, it was quite easy to push on our flat lawn. This might be because it does not have a roller on the back, as striped grass was not needed. However it does have a mulching option, which will be useful, as emptying grass collector and disposal of cuttings adds time. I thought the inclusion of the oil was a nice touch, as it meant we could get on with the job right away. Very satisfied!
Craig Sharp –
Very good mower much lighter and easy to handle than my old Ryobi. Ordering & delivery very straight forward although wasn’t able to track through TNT so missed initial delivery slot. Assembly instructions could have been clearer and so took longer than expected but so far happy with purchase.
p morgan –
Great Mower, GREAT SERVICE