We offer a free delivery service for all machines within a 30 mile radius. Not only that; we build, inspect and run up every machine prior to delivery. Making sure you get a fully functional machine that is set-up and ready for use. On delivery we will run through with you any instructions & maintenance advice so you are comfortable with your new machine.
STIHL RM 253.3 T 20″ Petrol Lawn Mower
£579.00 Original price was: £579.00.£519.00Current price is: £519.00. inc. VAT
The STIHL RM 253.3 T is a versatile and powerful self-propelled petrol lawn mower. With a 20″ cutting width and 4-in-1 mowing functions, it’s perfect for homeowners with medium to large-sized lawns up to 1800m².
Why buy the STIHL RM 253.3 T 20″ Petrol Lawn Mower?
- Powerful STIHL EVC 205 petrol engine with easy-start system
- Generous 51 cm (20″) cutting width ideal for medium to large lawns up to 1800 m²
- Single-speed wheel drive for effortless mowing, especially on slopes
- 4-in-1 functionality: Collect, Mulch, Side Discharge, and Rear Discharge
- Large 55-litre grass catcher box with integrated fill-level indicator
- Robust and durable torsion-resistant sheet steel deck
The STIHL RM 253.3 T is a robust, single-speed petrol lawn mower designed for homeowners managing small to medium-sized lawns. As part of STIHL’s 2 Series range, it is equipped with a host of innovative features that make it an excellent choice for the home gardener seeking efficiency and ease of use.
This mower is constructed with a durable sheet steel deck and features a wide 51 cm cutting width. The cutting height can be easily adjusted via a single point lever, offering a range from 20 mm to 100 mm to suit various lawn conditions. Powering the RM 253.3 T is the reliable STIHL EVC 205 engine, which features an easy-start system to ensure you can get to work with minimal effort. With a full tank of fuel, this machine is capable of mowing lawns up to approximately 1800 m².
Versatile Mowing Functions
The RM 253.3 T provides exceptional versatility with four different mowing methods, all achievable without additional tools. Users can choose to cut and collect with the 55-litre grass catcher box, cut and drop by simply removing the box, use the integrated side discharge flap for tackling longer grass, or mulch to finely shred clippings and return them to the lawn as a natural fertiliser.
Ergonomic Design and User Comfort
STIHL has focused on user comfort with the inclusion of an ergonomic comfort mono-handlebar. This design allows for easy access to the grass catcher box, simplifying removal and emptying. A convenient fill-level indicator on the box lets you know exactly when it’s time to empty. The super-soft grip on the handlebar absorbs vibrations, protecting the user’s arms during operation. For storage, the sturdy handlebar is height-adjustable and features a Quick-Fix tensioner, allowing it to be folded compactly without tools.
Built for Durability and Performance
The RM 253.3 T is engineered for a long service life. Its torsion-resistant sheet steel housing is highly robust, while the smooth-running wheels provide excellent traction and directional stability, ensuring effortless manoeuvrability. The single-speed wheel drive propels the mower forward, making it much easier to mow larger areas and gentle inclines with less physical effort from the operator.
The Sims Advantage: Buy from an Authorised UK Dealer
Sims Garden Machinery, with over 100 years of experience, is an authorised UK dealer for STIHL. When you purchase a STIHL RM 253.3 T from us, you are buying more than just a machine in a box. Our trained sales staff are on hand to offer expert advice at our Stratford-upon-Avon showroom, ensuring you choose the right product for your needs. Furthermore, our dedicated workshop is staffed by factory-trained mechanics who provide comprehensive after-sales support and servicing. For local customers in areas such as Warwickshire, Worcestershire, and the Cotswolds, we offer a free Pre-Delivery Inspection (PDI), assembly, and a personal handover demonstration to ensure you are confident and safe using your new mower. This commitment to service is what sets us apart from online-only retailers.
Our team is here to help. Contact us today for expert advice.
Technical Specification
| Cutting Width | 51 cm / 20″ |
| Recommended Lawn Area | Up to 1800 m² |
| Cutting Height | 20 – 100 mm |
| Cutting Height Adjustment | 7-level (central) |
| Engine Type | STIHL EVC 205.0 |
| Engine Displacement | 127 cm³ |
| Drive | Self-propelled (Single speed, 3.5 km/h) |
| Grass Catcher Box Volume | 55 litres |
| Device Weight | 34 kg |
| Deck Material | Sheet Steel |
| Handlebar | Comfort mono-handlebar, folding |
| Guaranteed Sound Power Level LWA | 97 dB(A) |
| Measured Sound Pressure Level LpA | 83 dB(A) |
| Vibration Value (Handlebar) ahw | 4.40 m/s² |
| Uncertainty Factor K | 2.20 m/s² |
Why buy from Sims Garden Machinery?
Authorised main dealer
We are authorised dealers for leading brands, meaning genuine parts, manufacturer-approved training, and warranty support you can rely on.
Real people, real support
No call centres. No ticket systems. Just a knowledgeable local team you can speak to when you need help.
Expert advice — not pushy sales
Our team are trained mechanics and product specialists, so you get honest, practical advice based on how you’ll actually use the machine.
Established, independent family business
We’re a long-standing independent dealer with deep roots in the local area — built on reputation, repeat customers, and word of mouth.
Frequently Asked Questions
Frequently Asked Questions
Who is the STIHL RM 253.3 T lawn mower best suited for?
The STIHL RM 253.3 T is ideal for homeowners with medium to large-sized lawns, up to a recommended area of 1800 m². Its self-propelled drive makes it particularly suitable for gardens with gentle slopes or for users who prefer not to push a mower, reducing physical effort. Its versatility and straightforward operation also make it a great choice for entry-level users wanting a high-quality petrol mower.
What are the different mowing options available on the RM 253.3 T?
This mower offers four distinct functions without needing extra tools. You can: 1) Cut and Collect using the 55-litre grass box. 2) Mulch to finely shred clippings and return them to the lawn as a natural fertiliser. 3) Side Discharge, which ejects cuttings from the side, useful for longer grass. 4) Rear Discharge (Cut & Drop) by removing the collector, which leaves the clippings on the lawn.
Will my lawn mower arrive ready to use?
Purchasing from an authorised dealer like Sims Garden Machinery offers a superior experience to buying from a ‘box-shifter’. For our local customers, every mower undergoes a full Pre-Delivery Inspection (PDI) by our trained mechanics. This includes assembly, adding oil and fuel, and a full test. We then provide a personal handover to demonstrate the controls. For national deliveries, the mower is shipped in its original packaging and will require some minor assembly, such as attaching the handlebar and grass box. Oil will be included but will need to be added before the first start.
How is the cutting height adjusted?
The cutting height is adjusted using a single, spring-loaded central lever. This convenient system allows you to easily change the cutting height across 7 different levels, from as low as 20 mm to as high as 100 mm, to perfectly match the condition of your lawn.
User Manuals / Downloads
| Dimensions | 120 × 60 × 62 cm |
|---|---|
| Brand | STIHL |
| Engine SizeThe displacement of the engine in cubic centimetres (cc). | 127 |
| Blade Brake ClutchIndicates if the blade can be stopped while the engine keeps running. | FALSE |
| Collector SizeThe capacity of the grass collection bag or box in litres. | 55 |
| Cutting MethodThe cutting mechanism used (e.g., Rotary or Cylinder). | Rotary |
| Cutting WidthThe width of the grass cut in a single pass. | 51 cm |
| Deck MaterialThe material the cutter deck is constructed from (e.g., Steel, Aluminium). | Steel |
| Drive TypeHow the mower is propelled (e.g., Push, Self-Propelled, Variable Speed). | Self-Propelled |
| Electric StartIndicates if the machine features a key or push-button electric starter. | FALSE |
| Mowing FunctionsAvailable mowing modes (e.g., Collection, Mulching, Side-Discharge). | Collection, Mulch, Side-Discharge |
| Rear RollerIndicates if the mower features a rear roller for creating lawn stripes. | FALSE |
| Power SourceThe primary energy source (e.g., Petrol 4-stroke, Battery, Electric). | Petrol |
| Weight (Net)The weight of the machine itself, excluding any fuel and packaging (kg). | 34 |
STIHL at Sims Garden Machinery
Sims Garden Machinery is a family-run business, serving gardeners since 1908, and an Approved STIHL Dealer in Stratford-upon-Avon — with one of the largest STIHL displays in the region: over 12 metres of the full range to see, hold and compare in person. From petrol and cordless chainsaws to hedge trimmers, brushcutters, leaf blowers, lawn mowers and pressure washers, we stock the STIHL line-up for homeowners, rural estates and professionals right across Warwickshire.
The STIHL battery system
STIHL's AK, AP and AS cordless ranges run a whole set of tools from one battery. Come and see the range in person and we'll help you choose the system that suits your garden.
Servicing, setup & support
Our on-site workshop services and repairs STIHL machines — whether you bought them from us or not — with genuine STIHL parts, chains and accessories. Plus free local delivery and handover on every new machine.
FREE PDI, DELIVERY & HANDOVER
NATIONAL DELIVERY
- Each machine will be tested prior to delivery.
- Orders will be sent out via either ThePalletNetwork or DHL insured service.
















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