Best 20 Inch Petrol Lawnmower Deals Online in the UK (25 Deals Found)

Last Updated - 21/08/2025 Sort By:

Best Choice
RocwooD

New
RocwooD Petrol Lawnmower Self Propelled 51cm 20" Cutting Width 173cc OHV Engine Mower Mulching Foldable Handles 60 Litre
Cut Width - Easy to use self-propelled lawn mower with a 51cm cutting width, Lightweight chassis for maneuverability, Id

£275.99
Best Value
Hyundai

New
Hyundai 196cc Petrol Lawnmower, 20" 51cm 4 Stroke, Self Propelled Petrol Mower, Easy Starting with Six Cutting Heights,
Powerful 196cc Hyundai 4-stroke petrol engine: Provides easy starting and low fuel consumption

£429.99
New
Crytec Self Propelled Petrol Lawn Mower 21 Inch Capacity 53cm Deck 196cc 60L Bag
Say goodbye to the hassle of manual pushing, as this mower effortlessly glides across your lawn, making light work of ev

£289.95
Webb

New
Webb WER510SP 20"/51cm Self Propelled Rotary Petrol Lawnmower, 173cc 4-Stroke Engine, 7 Cutting Heights, 65 Collection B
POWERFUL SELF-PROPELLED FOUR WHEEL MOWER FOR LARGE LAWNS – designed to handle rough grass and uneven lawns, this strong,

£349.95
New
3IN1 4-Stroke Backpack Cultivator Tiller Lawn Mower Brush Cutter Hedge Trimmer
1000W 1.4 HP 4-Stroke Backpack Grass Cutter Gas Tiller Cultivator Hedge Trimmer The main function 1. Cut weeds on lawns,

£262.26
Hyundai

New
Hyundai 20"/51cm 196cc Electric-start Self-propelled Petrol Lawnmower, 6 Cutting Heights, Large 70l Grass Collector, Fol
508mm / 20" cutting width: Ideal for medium to large lawns

£489.00
Dellonda

New
Dellonda 170cc 20"/51cm Self-Propelled Petrol Lawnmower - 4-Stroke - DG102
Powerful engine - Rato 4-stroke 170cc engine with recoil pull start.

£329.98
New
3IN1 4-Stroke Backpack Cultivator Tiller Lawn Mower Brush Cutter Hedge Trimmer
1000W 1.4 HP 4-Stroke Backpack Grass Cutter Gas Tiller Cultivator Hedge Trimmer The main function 1. Cut weeds on lawns,

£264.96
NAX

New
NAX POWER PRODUCTS 1000S self-propelled lawn mower with Briggs & Stratton combustion engine of 125 cm3 capacity, 450E se
Reliable, efficient and easy to start - Briggs & Stratton combustion engine of 450 E series with a capacity of 125 cm³

£280.27
Free Shipping
New
3IN1 4-Stroke Backpack Cultivator Tiller Lawn Mower Brush Cutter Hedge Trimmer
Are you still using manual weeding and tilling?. Grass Stopper : Installing a grass stopper can help you keep out most o

£220.79
25% Off
Mountfield

New
Mountfield SP41 Petrol Lawnmower, Self-Propelled, 39cm cutting width, 123cc ST120 Autochoke petrol engine, Up to 250m²,
Easy-to-use self-propelled lawn mower with a 39cm cutting width, Lightweight chassis for manoeuvrability, Ideal for smal

£209.99 £282.00
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Fox

New
20" / 51cm Petrol Lawn Mower Zero Turn Self-Propelled Recoil Fox 4 Blades Quad Cut 196cc 60L Collection Bag 22 inch Lawn
Heavy duty Wolf 196cc OHV 4 stroke petrol engine

£349.95
Used
Atco Balmoral 20s 20se 6 Bladed Qx Cassette Cylinder 20 INCH Allett Kensington
Atco balmoral 20 inch 6 bladed qx cassette in good used condition. It has new bearings fitted and cuts paper as shown in

£156.72
Hyundai

New
Hyundai 20"/51cm 196cc Electric-start Self-propelled Petrol Lawnmower, 360 Degree Swivelling Front Wheels, 6 Cutting Hei
360 degree swivelling front wheels: Allows the mower to be turned on its own footprint

£604.99
New
3IN1 4-Stroke Backpack Cultivator Tiller Lawn Mower Brush Cutter Hedge Trimmer
1000W 1.4 HP 4-Stroke Backpack Grass Cutter Gas Tiller Cultivator Hedge Trimmer The main function 1. Cut weeds on lawns,

£209.75
11% Off
RocwooD

New
21″ Self Propelled RocwooD Petrol Mulching Lawnmower Folding Handle Side Chute 51CM Cut Width Rotary Blade 65 Litre Capa
Mulching - The perfect way to discharge of grass, shooting far and out of the way of the user. Leading to an even spread

£295.99 £335.99
New
3IN1 4-Stroke Backpack Cultivator Tiller Lawn Mower Brush Cutter Hedge Trimmer
1000W 1.4 HP 4-Stroke Backpack Grass Cutter Gas Tiller Cultivator Hedge Trimmer The main function 1. Cut weeds on lawns,

£220.80
New
52cc 2 Strokes 5 in 1 Gas Grass Hedge Trimmer 3 Poles Yard Eater Set
[Powerful Engine] 2HP 2-cycle 52cc engine provides more power with easy starter, it can trim bigger branches efficiently

£162.41
Used
Ariens Apex 48 Inch Rear Discharge Deck
Foot-operated, spring assisted deck lift with 15 cutting positions. Made for service providers who mow frequently. Top c

£7,440.00
New
3IN1 4-Stroke Backpack Cultivator Tiller Lawn Mower Brush Cutter Hedge Trimmer
1000W 1.4 HP 4-Stroke Backpack Grass Cutter Gas Tiller Cultivator Hedge Trimmer The main function 1. Cut weeds on lawns,

£264.96
New
52CC 5 in 1 Garden Multi Tool Hedge Cutter Chainsaw Grass Trimmer & Brush Cutter
1 x 52CC Engine. [Powerful Engine] 2HP 2-cycle 52cc engine provides more power with easy starter, it can trim bigger bra

£162.41
New
3IN1 4-Stroke Backpack Cultivator Tiller Lawn Mower Brush Cutter Hedge Trimmer !
1000W 1.4 HP 4-Stroke Backpack Grass Cutter Gas Tiller Cultivator Hedge Trimmer The main function 1. Cut weeds on lawns,

£264.95
New
5 in 1 52cc Brush Weed Cutter Petrol Hedge Trimmer Grass Pruner Chainsaw Tools
[Powerful Engine] 2HP 2-cycle 52cc engine provides more power with easy starter, it can trim bigger branches efficiently

£162.41
New
3IN1 4-Stroke Backpack Cultivator Tiller Lawn Mower Brush Cutter Hedge Trimmer
1000W 1.4 HP 4-Stroke Backpack Grass Cutter Gas Tiller Cultivator Hedge Trimmer The main function 1. Cut weeds on lawns,

£264.95
New
3IN1 4-Stroke Backpack Cultivator Tiller Lawn Mower Brush Cutter Hedge Trimmer
1000W 1.4 HP 4-Stroke Backpack Grass Cutter Gas Tiller Cultivator Hedge Trimmer The main function 1. Cut weeds on lawns,

£264.96

25 20 Inch Petrol Lawnmower deals are available from: Amazon, eBay stores, starting from £156.72.
The biggest discount we found is 25% on Mountfield SP41 Petrol Lawnmower, Self-Propelled, 39cm cutting width, 123cc ST120 Autochoke petrol engine, Up to 250m², Includes 40L Grass Collector at Amazon.
The lowest price we found is £156.72 while the highest is £7,440.00.
Prices for the best 20 Inch Petrol Lawnmower deals average at £569.14.
Last updated on August 21, 2025.
We scanned these quality online stores and more to deliver you with the best offers online available for 20 Inch Petrol Lawnmower.