Cobra RM53HST-Pro 21

Cobra RM53HST-Pro 21" Petrol Roller Lawnmower / Hydrostatic Drive

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Cobra RM53HST-Pro 21" Petrol Roller Lawnmower / Hydrostatic Drive

The Cobra RM53HST-PRO petrol roller mower is powered by a Honda GXV160 engine, has a hydrostatic gearbox, a 21" cutting width and is built for the demands of the domestic and professional gardener.

Product Features

Expertly powering Cobra lawnmowers: Professionals rely on the GXV160 to deliver reliable, easy starting, fuel efficent performance, day in and day out. The GXV160 petrol engine offers a quiet, yet powerful and lightweight combination for a variety of demanding applications. Ideal for Cobra lawnmowers, these easy starting engines pack a punch.

Create a beautiful lawn with the full width steel rear roller: Equipped with a heavy steel rear roller, the Cobra RM53HST-PRO will create a traditional striped finish. The split differential drive preventsslipping on damp ground and ensures the lawn won't be scalped whilst turning. The RM53HST-PRO also gives you the ability to mow right up to the edge of flowerbeds and borders. The rear roller supports the lawnmower when the front wheels are in line with the border edge.

Front protection bar: The Cobra RM53HST-PRO petrol lawnmower comes equipped with a robust stainless steel front protection bar. This protection bar will provide on going protection for your Cobra professional lawnmower increasing the life of your aluminium deck.

Extra strengthened for professional use: The Cobra professional range of lawnmowers have stronger, thicker and more robust handlebars. In addition to the thicker gauge handlebars, the Cobra RM53HST-PRO lawnmower comes equipped with reinforcing struts for extra strength for your lower handles.

Strength, durability and protection as standard: All Cobra professional range lawnmowers are equipped to handle the toughest, most uncompromising conditions with ease. The reinforced steel deck liner increases the life of your deck by protecting and strengthening the underside of your lawnmower. Cobra professional lawnmowers are built to withstand the most demanding commercial applications.

Shaft drive means no more belts or chains: The high specification RM53HST-PRO machine from Cobra is shaft driven rather than the more traditional belt or chain drive, so it will cope easily with long periods of intensive use in the most challenging conditions. For increased control over your grass cutting, the Cobra RM53HST-PRO lawnmower has a Hydrostatic gearbox.

Powerful fan for superior grass collection: Come rain or shine, the Cobra fan assisted collection system ensures a great collection every time. Even in the dampest conditions, the integrated fan works like a vacuum to further improve the collection of grass cuttings into the 75ltr collection bag.

Blade brake clutch system: Cobra's Blade Brake Clutch System allows you to stop the blades while the engine keeps running. With most traditional mowers, when you let go of the handlebar, the engine stops running and you have to restart the mower to continue. This can be a hassle, especially if you are bagging. Roto-Stop stops the blades from turning, but keeps the engine running. No need to restart the mower.

7 Cutting Heights: The Cobra RM53HST-PRO petrol lawnmower has 7 adjustable cutting heights ranging from 16mm for a superb low finish, up to 76mm for tackling longer grass. All this is achieved by simply using the height of cut adjustment levers. Depending on the height of your grass, you can easily and efficiently adjust the cutting height to suit.

75ltr grass bag: The Cobra RM53HST-PRO petrol lawnmower is equipped with a 75ltr fabric grass bag, ideal for collecting large amounts of grass clippings before the need for emptying. The grass bag on the Cobra RM53HST-PRO is made from a robust, high quality fabric. This fabric enables a strong free flow of air which means that grass collection on this machine is even more compact and comprehensive.

You Save: £74.00 (4%)
Catalogue Number
  • Engine: Honda GXV160
  • Drive Type: Hydrostatic Gearbox
  • Cutting Width: 53cm / 21"
  • Cutting Height: 13-59mm 7 Stage Adjustment
  • Grass Bag Capacity: 75ltr
  • Blade Brake Clutch
  • 2 Year Warranty
  • Weight: 62kg
More Information
Brand Cobra Garden
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Our comprehensive warranty covers you in the unlikely event that your machine requires repair due to a manufacturing defect. The Cobra Authorised dealer is obliged under this warranty to repair or replace defective parts found during the machines warranty period. This repair will be free of charge for materials and labour only. This warranty will not cover wear and tear parts such as blades, spark plugs, filters, drive belts etc.

An immense amount of design, engineering and expertise ensures that every new Cobra machine delivers the Cobra philosophy. Cobra Gardens philosophy is to remain true to their trusted values of Innovation, Quality, Reliability, Value and Customer Service. Cobra Garden work hard to ensure that we offer Products and Services that continue to be relevant to our customers.

In the event of your machine needing warranty repair please note the following.

We would always recommend the company that sold you the machine should be able to carry out the repair. In the event that they are unable to do so please locate your nearest stocking dealer with the dealer locator off the home page. Or contact us at

[email protected]


1 Year - Hand Carts
GCT200P, GCT300, GCT320HD, GCT300MP, GTT450, GTT400HD

1 Year - Spreaders
TS45, HS30, HS45

1 Year - Garden Roller

1 Year - Sack Trolleys
ST150, ST200, ST210, ST250

2 Year - Cordless Lawnmowers
MX4140V, MX46S40V

2 Year - Electric Lawnmowers

2 Years - Petrol Lawnmowers

2 Years Domestic Use, 1 Year Professional Use - Professional Lawnmowers

2 Years - Petrol Brushcutters
BC260C, BC330C, BC270KB, BC270K, BC350KB, BC350K, BC450KB, BC450K, BC530K

2 Years - Petrol Grass Trimmer

2 Years - Petrol Multi-Tools
MT250C, MT270K

2 Years - Petrol Long Reach Hedgecutter

2 Years - Petrol Chainsaws
CS420-14, CS420-16, CS520-18, CS620-20

2 Years - Blower / Vac

2 Years - Petrol Scarifiers
S390B, S390H

2 Years - Petrol Cultivators

2 Years - Electric Hedgetrimmers
H55E, H60E, LRH40E, P20E

2 Years - Electric Chainsaw
CS35E, CS40E, CS45E

2 Years - Electric Grass Trimmer

2 Years - Electric Blower Vacuum

2 Years - Electric Shredder

2 Years - Electric Scarifiers
S32E, S36E

2 Years - Electric Log Splitters

LS520H, LS600V

Keengardener Ltd offer replacement or refund on faulty goods within the first 30 days of receipt. Keengardener Ltd offer a replacement on faulty goods after 30 days but within their respective guarantee period, if a replacement is not possible a full or partial refund will be offered inline with fair use. Guarantee period is 1 year unless otherwise stated.

In accordance with your rights to a "cooling off period" under The Consumer Contracts (Information, Cancellation and Additional Charges) Regulations 2013 SI 2013/3134 you can cancel your order and return the goods at any time until 14 days after you receive the goods and we will refund any payment made by you to us for the goods. Any goods returned must be unused and in re-saleable condition.

If you want to cancel your order you must notify Keengardener before returning any items.

Please note that the right to return goods which are not faulty does not apply to any goods which have been made to your own specifications.

The cost of the return of any faulty goods will be borne by Keengardener. We shall be entitled to charge you for the costs of returning goods which are not faulty.

Following notification that you wish to return the goods in return for a refund as described above, any payment taken by us in respect of the goods will be reimbursed to you within 30 days.

Due to product development, actual models may occasionally vary slightly from the details on the website, but remember you may return anything within 14 working days of receipt of the goods, if you are not 100% satisfied. You must notify Keengardener before returning any items.

Your rights under this Returns Policy are without prejudice to any rights under The Consumer Contracts (Information, Cancellation and Additional Charges) Regulations 2013 SI 2013/3134.

To view our returns policy in full and read our FAQ's please visit the returns policy page.