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Mountfield S421R PD Lawn Mower

Original price was: £399.00.Current price is: £349.00.

In stock

Mountfield S421R PD Petrol lawn mower –

Why purchase a Mountfield 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

The Mountfield S421R PD Lawn Mower now has a new chassis and engine. The robust powder-coated steel chassis houses the new Stiga ST140 Autochoke engine; this new engine is easy to start thanks to the auto choke system. The 139cc engine provides plenty of Torque and power even in more demanding conditions.

  • POWERED BY STIGA 123 CC PETROL ENGINE
  • SELF-PROPELLED WITH FIXED FORWARD SPEED 4.1KM/H
  • 41CM CUTTING WIDTH
  • REAR ROLLER
  • 55-LITRE HYBRID WITH FULL INDICATOR GRASS COLLECTOR
  • 5-YEAR EXTENDED WARRANTY (T&CS APPLY)

What else will I need to buy with my Mountfield S421R PD lawn mower?

  • Lawn mower oil
  • Petrol / Aspen Fuel
  • OR, 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!

Mountfield S421R PD Lawn Mower Description

The Mountfield S421R PD is a self propelled with forward drive coming from the powered rear roller, this mower is effortless to use and cuts right up to paths and border edges at the same time leaving those classic lawn stripes. The cutting height is centralised and easily adjusted with a single handle through 5 positions ranging from 20mm to 70mm, allowing you to choose the most suitable height for the finish required.

This Mountfield S421R PD has been specifically designed to collect grass clippings and features a 55 litre grass collector with an indicator to show when it needs emptying. User comfort is ensured by an adjustable ergonomic handle that can be conveniently folded to maximise storage space when not in use

A 41cm cutting width makes this mower suitable for small sized lawns up to 20m x 20m.

Also available is the push version – the Mountfield S421R HP Lawn Mower


Mountfield S421R PD Specification

ENGINE
Engine Brand Stiga
Engine Type ST140 OHV
Engine Capacity 139cc
Net Power Output 2.20kW @ 2900rpm
Starting Method Recoil
DRIVE
Transmission Single Speed
Drive Self Propelled
CUTTING
Cutting Width 41cm /16″
Cutting Heights 20-70mm (5 Positions)
Cutting Height Adjustment Single Point
Roller Yes
Collecting Yes
Mulching No
Collector Canvas with hard top 55 litres
GENERAL
Chassis Steel
Fuel Tank Capacity 0.85 Litres
Lawn Size 20m x 20m
Collapsible Handles Hand Wheel
Safety Features Operator Presence Control
Included Accessories N/A
Wheels Front 180mm Rear Roller 127mm
Warranty 5 Years (Terms & Conditions Apply)
Washing Link No
dB(A) Rating
Weight 31kg

Fuel stabiliser

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

WHAT DOES FUEL STABILISER DO?

FUEL STABILISER
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.
WHY DO I NEED TO USE FUEL STABILISER?

Modern petrol now typically contains 5% ethanol. Ethanol readily bonds with atmospheric moisture creating an ethanol-water mix and this oxidisation creates what is known as stale fuel.
As fuel oxidises it can turn to gum and clog jets and other openings in the fuel system. Gummed up carburettors cause serious problems in power equipment such as lawn mowers that see intermittent use or have long periods of storage.

Ethanol blended fuel is also a corrosive substance that can cause the gradual destruction of the metal used in the fuel systems of outdoor power equipment (particularly soft metals such as brass and aluminium). Ethanol also absorbs water, drawing it into the fuel mixture. Water is highly corrosive and when ethanol and water combine it can cause performance problems and fuel system damage.
Good quality fuel stored in an airtight container should stay stable, not oxidise and stay fresh. However the typical fuel tank of a lawn mower isn’t ideal for storing fuel. It isn’t 100% airtight, so fuel will oxidise in the tank, and over time (as little as 30 days) will go stale.


Masseys – Swadlincote

Founded in 1947, Masseys has established itself as a trusted family-run business located in Swadlincote, Derbyshire. With a strong commitment to providing quality products at competitive prices, Masseys has built a reputation for exceptional customer service, backed by knowledgeable staff who are always ready to offer expert advice.

Masseys proudly serves the local community and surrounding areas, including Leicester, Nottingham, and Derby postcodes. Additionally, we extend our delivery services to smaller towns like Tamworth, Lichfield, Loughborough, Uttoxeter, and Ashbourne, ensuring that customers can conveniently access our wide range of products.

As an authorised dealer of Mountfield, we specialise in high-quality lawn mowers and garden equipment, helping our customers maintain beautiful outdoor spaces. Our extensive selection caters to both DIY enthusiasts and professional landscapers alike.

If you need assistance or have questions about our products, don’t hesitate to reach out. You can call us at 01283 217133 or email us at [email protected].

For a more personal experience, we invite you to visit our store. While you’re here, enjoy a cup of coffee at our fantastic coffee shop, and explore our vast inventory of over 25,000 items in DIY, home improvement, and gardening. At Masseys, we’re dedicated to making your shopping experience enjoyable and rewarding!


Why Choose Mountfield?

Mountfield is a highly regarded brand in the gardening and landscaping industry, known particularly for its premium lawn mowers and outdoor equipment. Established in the UK, Mountfield has earned a solid reputation for producing reliable and efficient machinery that caters to both residential and professional gardening needs. Over the decades, the brand has become synonymous with quality, innovation, and customer satisfaction.

Among Mountfield’s extensive product range, their lawn mowers are particularly notable for their innovative designs and user-friendly features. The company offers a variety of models to suit different preferences and skill levels, ranging from traditional push mowers to advanced self-propelled options. This versatility ensures that whether you’re a seasoned gardener or a newcomer to lawn care, you can find the perfect mower to meet your needs.

A highlight of Mountfield’s offerings is their line of ride-on mowers, which are ideal for larger gardens and estates. These powerful machines blend comfort and efficiency, enabling users to cover expansive areas with minimal effort. With robust engines and cutting decks designed for durability, Mountfield ride-on mowers deliver exceptional performance while significantly reducing mowing time. Many models feature adjustable cutting heights, allowing users to customize their lawn’s appearance to achieve that perfectly manicured finish.

Durability is a hallmark of Mountfield’s design philosophy, ensuring that their mowers can withstand the demands of regular use in various conditions. Moreover, Mountfield continually integrates modern technologies into their products, enhancing efficiency and user experience. Features such as easy-start mechanisms and ergonomic controls make mowing more accessible and enjoyable for everyone.

In summary, Mountfield stands out as a trusted choice for anyone looking to maintain a pristine lawn. With a commitment to quality and innovation, they provide a wide array of options—from traditional push mowers to the convenience of ride-on models—ensuring that every gardener can find the right tool for their lawn care needs.

For more information please visit https://www.mountfieldlawnmowers.co.uk/

The Mountfield S421R PD lawn mower at Masseys.

Additional information

Weight 1 kg

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