Every machine we supply is professionally assembled by one of our trained technicians before dispatch.

Mountfield S421R HP Lawnmower
Every machine undergoes a thorough pre-delivery inspection which ensures your new machine is operating correctly, safely and is ready to use.
When we handover your new machine we will give you some instruction on the correct and safe use of your purchase. We will answer any questions you might have and also offer some instruction on basic maintenance to help you keep your new machine in good condition.
We offer free delivery where your machine will be handed over by a member of our team. Postcodes we deliver to:
HU1 – HU20.
YO8, YO25, YO15, YO16, YO42, YO43
DN14 – DN21
DN31 – DN41
LN1- LN11
Product Details & Features
The Mountfield S421R HP is a hand propelled rear roller mower that is ideal for anyone wanting a striped finish on a small to medium sized lawn.
The cutting width is 16” (41cm). The grass clippings can either be collected in the 55 litre grass bag or simply discharged from the rear of the mower to the ground in areas where collection is not required.
The rear roller will give that classic striped look to your lawn and will also help to support the mower at lawn edges. Better yet, the rear roller is split into two halves which turn independently making the S421R HP very easy to manoeuvre.
A Mountfield engine powers this model making it excellent value for money. Mountfield engines are developed specifically for lawnmower applications and comply with stringent noise, emissions and vibration legislation. The engine is very easy to start and is fitted with a standard recoil rope starter system.
A single lever varies the height of cut offering five positions between 20 and 70mm.
The robust steel chassis is powder coated in 'Mountfield red' and offers you many years of service.
The Mountfield S421R HP comes with a 5 year domestic use warranty.
Product Specifications
Manufacturer | Mountfield |
Model | S421R HP |
Category | Petrol |
Type | Rotary |
Propulsion | Push |
Rear Roller | Yes |
Auto Engine Stop | Yes |
Key Start | No |
Grass Collector | Yes - 55 litres |
Cutting Width | 16"/41cm |
Cutting Heights | 20-70mm |
Cutter Deck | Steel |
Engine | Stiga ST120 OHV |
Lawn Size | Small |
Weight | 30kg |
Machine Warranty | 5 years in domestic use |
Engine Warranty | 5 years in domestic use |
We’ll take care of you
Pre-Delivery Inspection
All machines undergo a professional assembly and rigorous testing before we dispatch.
Free Local Delivery
All machines are free delivery to the local area around our showrooms. Spare parts are delivered nationally.
Click & Collect
Place your order online and collect for free from our showrooms in Swanland and Langworth.
Official Dealer
We're official dealers of all the machines we sell, meaning we're qualified to give you the best aftersales support.