Mountfield Petrol Lawn Mower Review
Mountfield petrol lawn mowers are a staple in British gardens, known for their robust build and reliable cutting performance. This review breaks down the key models, their specs, and what owners really think to help you choose the right one.
Quick answer
The Mountfield 151S Self-Propelled is the top pick for most medium-sized lawns, offering a powerful Briggs & Stratton engine and a 46cm cutting deck. For smaller gardens, the Mountfield 135M push mower provides excellent value and maneuverability.
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Research updated June 2026.
Mountfield 151S Self-Propelled
Reliable self-propelled mower for medium to large lawns.
| Model | Best For | Engine | Cutting Width | Rating |
|---|---|---|---|---|
| Mountfield 151S | Medium-large lawns | Briggs & Stratton 500E | 46 cm | 4.4/5 |
| Mountfield 135M | Small gardens | Briggs & Stratton 450E | 40 cm | 4.2/5 |
| Mountfield 153H | Large, rough lawns | Honda GCV170 | 53 cm | 4.5/5 |
| Mountfield 142S | Medium lawns, tight budget | Briggs & Stratton 450E | 42 cm | 4.1/5 |
| Mountfield 165H | Large, professional use | Honda GXV160 | 65 cm | 4.6/5 |
Who is Mountfield For?
Mountfield petrol mowers are designed for homeowners with medium to large lawns who want a durable machine without paying premium prices for brands like Honda or Stihl. They are particularly popular in the UK, where their steel decks and reliable engines handle damp grass and uneven terrain well.
Performance and Cutting Quality
Owner reviews consistently praise the cut quality of Mountfield mowers, especially the 151S and 153H models. The Briggs & Stratton and Honda engines provide ample torque for thick grass, and the steel cutting decks produce a clean finish. The self-propelled drive on models like the 151S is smooth and easy to engage, though some users note it can be a bit slow on flat lawns.
Build Quality and Durability
Mountfield uses steel decks on all petrol models, which is a major plus for longevity. The plastic grass collection boxes are a common point of complaint, with some owners reporting cracks after a few seasons. However, replacement parts are widely available and affordable. The engines are reliable, with the Honda-powered models (153H, 165H) offering the best long-term durability.
What to Check Before Buying
Ensure the cutting width matches your lawn size. A 40-46 cm deck is ideal for most gardens, while a 53 cm or larger deck suits larger areas. Check the engine type: Briggs & Stratton is fine for regular use, but Honda engines are worth the extra cost for heavy use. Also, verify the self-propelled drive engages smoothly in your terrain.
Mistakes to Avoid
Do not buy a push mower (like the 135M) for a large, sloping lawn; the self-propelled models are much easier to use. Avoid the 142S if you have a very large lawn, as its 42 cm deck will take longer. Do not skip checking the grass collection bag fit; some users report it can be fiddly to attach.
Alternatives to Consider
If you want a lighter mower, consider a Flymo petrol model. For a more premium build, look at Honda or Stihl petrol mowers. For electric options, Bosch and Makita cordless mowers offer similar cutting widths with less maintenance.
FAQs
Are Mountfield petrol mowers reliable?
Yes, they are considered reliable for home use, with Briggs & Stratton and Honda engines providing good longevity. The steel decks are durable, though the plastic grass boxes can crack over time.
What is the best Mountfield mower for a large lawn?
The Mountfield 165H with a 65 cm cutting deck and Honda GXV160 engine is best for large lawns. The 153H is also excellent for rough terrain.
How do I maintain a Mountfield petrol mower?
Regular maintenance includes checking the oil, cleaning the air filter, and sharpening the blade annually. Store it in a dry place and use fuel stabiliser if storing for winter.
Can I use a Mountfield mower on wet grass?
Yes, but it is not recommended as it can clog the deck and leave clumps. The steel deck handles damp grass better than plastic ones.
What is the difference between the 151S and 153H?
The 151S has a Briggs & Stratton engine and 46 cm deck, while the 153H has a Honda engine and 53 cm deck. The 153H is more powerful and better for larger lawns.
Is a Mountfield mower easy to start?
Most models start easily with a pull cord, especially when the engine is warm. Some users report a stiff pull cord on new models initially.
What is the warranty on Mountfield mowers?
Mountfield offers a 2-year warranty for home use on most petrol models. This covers manufacturing defects but not wear and tear.
Can I mulch with a Mountfield mower?
Yes, many models come with a mulch plug or have it as an optional accessory. The 151S and 153H support mulching.
How heavy is a Mountfield 151S?
The Mountfield 151S weighs approximately 32 kg. It is manageable for most users but can be heavy to push without the self-propelled drive engaged.
Where are Mountfield mowers made?
Mountfield mowers are designed in the UK and manufactured in Italy. The engines are sourced from Briggs & Stratton or Honda.
Our verdict
The Mountfield 151S Self-Propelled is the best overall choice for most medium to large lawns, combining reliable performance with a fair price. For smaller gardens or tight budgets, the Mountfield 135M push mower offers excellent value and a good cut quality.