Masseys DIY Store

Mountfield SP46 Petrol Lawn Mower

Original price was: £339.00.

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Availability: In stock

Mountfield SP46 Petrol lawn mower –

Why purchase a Mountfield SP46 Lawn Mower from Masseys?

  • A long established family business
  • Masseys will assemble your lawn mower and add the oil and fuel for only £15
  • Lawn Mower in stock and on show in our showroom
  • Product can be assembled and delivered to your door
  • Local delivery available

Any questions? – Send us an email

Whether you buy the machine boxed, or opt to have this additional service, Masseys will always provide the in-store help and advice, dedicated workshop, and warranty backup from a trusted Mountfield dealer

Lawn Mowers

Mountfield SP46 Lawn Mower: Your Ultimate Lawn Mowing Solution

Welcome to your guide on the Mountfield SP46 lawn mower, a premium petrol lawn mower that combines power, efficiency, and user-friendly features. Designed for medium to large gardens, the SP46 offers exceptional performance to keep your lawn looking immaculate with minimal effort.

Masseys will assemble and check your lawn mower, add the correct amount of engine oil and add some fuel all for just £15, so it is ready to cut grass! Its on display in our showroom in Swadlincote.

If you want the push version of this mower the you might want to consider the Mountfield HP41 self propelled model or view our full range of Mountfield lawn mowers.

Key Features of the Mountfield SP46 Petrol Lawn Mower

1. Powerful ST140 Engine

The SP46 is powered by a robust ST140 OHV Autochoke engine, delivering 139cc of reliable performance. This powerful engine ensures efficient and consistent cutting, even in dense and overgrown grass, providing a clean and professional finish every time.

2. Self-Propelled Drive System

Experience effortless mowing with the self-propelled drive system of the SP46. This feature reduces the physical strain of pushing the mower, allowing you to cover large areas quickly and comfortably, especially on uneven or sloping terrain.

3. Wide Cutting Width

With a cutting width of 46cm, the Mountfield SP46 enables you to mow larger lawns more efficiently. This wider cutting deck reduces the number of passes needed to cover your lawn, saving you valuable time and effort.

4. Versatile Cutting Heights

The SP46 offers six adjustable cutting heights, ranging from 22mm to 80mm. This versatility allows you to customize the length of your grass according to the season and your preference, ensuring your lawn always looks its best.

5. Durable Steel Chassis

Constructed with a robust steel chassis, the SP46 is built to withstand regular use and challenging mowing conditions. This durable design ensures longevity, making it a reliable investment for your garden maintenance.

6. Large Grass Collector

The 60-liter grass collector reduces the frequency of emptying, allowing for uninterrupted mowing sessions. The collector is designed for easy detachment and disposal, enhancing the overall convenience of the mowing process.

7. Ergonomic Design

The Mountfield SP46 features an ergonomic handlebar with a soft grip, providing comfort during extended mowing periods. The foldable handles also make storage and transportation hassle-free.


1. Professional Lawn Appearance

Achieve a manicured lawn with the precise cutting capabilities of the SP46. The adjustable cutting heights and powerful engine ensure a uniform and clean cut, enhancing the overall aesthetic of your garden.

2. Ease of Use

The self-propelled drive and ergonomic design make the SP46 easy to operate, even for extended periods. This user-friendly mower reduces physical strain and fatigue, making lawn care an enjoyable task.

3. Efficiency and Time Savings

The wide cutting width and large grass collector enhance the efficiency of the SP46, allowing you to complete your mowing tasks quickly and effectively. Spend less time mowing and more time enjoying your garden.

4. Durability and Reliability

Invest in a lawn mower that offers durability and reliable performance. The sturdy steel chassis and high-quality engine components ensure that the SP46 stands up to regular use and delivers consistent results season after season.

Maintenance Tips for Your Mountfield SP46

1. Regular Engine Maintenance

Keep your SP46 running smoothly by performing regular engine maintenance. Follow the manufacturer’s recommendations for oil changes, air filter cleaning, and spark plug replacement to ensure optimal performance.

2. Blade Care

Inspect and maintain the mower blades regularly. Sharpen or replace the blades as needed to maintain a clean and efficient cut, ensuring your lawn remains healthy and well-groomed.

3. Cleaning After Use

Prevent grass buildup and corrosion by cleaning the mower deck after each use. This practice helps maintain the mower’s efficiency and prolongs its lifespan.

4. Proper Storage

Store your SP46 in a dry, sheltered location to protect it from the elements. During the off-season, drain the fuel tank and perform any necessary maintenance to keep the mower in top condition.

The Mountfield SP46 is the ideal solution for gardeners seeking a powerful, efficient, and easy-to-use petrol lawn mower. With its robust features and user-friendly design, the SP46 ensures your lawn remains pristine with minimal effort. Experience the superior performance of the Mountfield SP46 and elevate your garden maintenance routine.

Collection / Delivery

Located in Derbyshire, Masseys offers convenient local delivery options to Leicester, Nottingham, and Derby postcodes, as well as to smaller towns like Tamworth, Lichfield, Loughborough, Uttoxeter, and Ashbourne.

Alternatively, why not visit our store and pick up your items in person? While you’re here, don’t forget to try our fantastic coffee shop. Plus, explore our extensive selection of over 25,000 products in our DIY, home, and garden store

Fuel stabiliser

Please use a fuel stabiliser or Aspen fuel with your lawn mower.

Mountfield Universal Fuel Stabiliser contains a carefully balanced formulation based on light hydrocarbon fractions and components specially selected for their performance enhancing properties:

  • Prevents the degradation of fuel – fuel stays fresh for up to 2 years.
  • Protects the fuel against oxidation.Prevents gum and varnish build up.
  • Protects the engine and fuel system parts against rust and corrosion.

For any more information then please visit the Mountfield Lawn Mower website.

Weight 1 kg

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Mountfield SP46 Lawn MowerMountfield SP46 Petrol Lawn Mower
Original price was: £339.00.

Availability: In stock