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 RMA 253.3 T 20" Cordless Lawn Mower (Tool Only)
£599.00 inc. VAT
STIHL RMA 448.3 RV 18" Cordless Lawn Mower (Tool Only)
£829.00 inc. VAT
STIHL RMA 443.3 V 16″ Cordless Lawn Mower (Tool Only)
£649.00 inc. VAT
The STIHL RMA 443.3 V is a powerful and versatile cordless lawn mower with a 16″ cutting width and Vario self-drive, perfect for homeowners with medium to large lawns seeking quiet, efficient performance. (Tool Only – battery & charger sold separately).
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Description
Why buy the STIHL RMA 443.3 V 16″ Cordless Lawn Mower (Tool Only)?
- Cordless lawn mower with 41 cm (16″) cutting width and Vario wheel drive
- Durable and lightweight polymer deck is rust-proof and UV-resistant
- Versatile 4-in-1 mowing: collect, side-discharge, rear-discharge, and mulch
- Height-adjustable mono-handlebar for ergonomic use and compact storage
- Large 52-litre grass collection box with convenient fill-level display
- Part of the STIHL AK System (battery and charger sold separately)
Powerful & Versatile Cordless Mowing
The STIHL RMA 443.3 V is a battery-powered self-propelled lawn mower designed for home gardeners looking to maintain medium-sized to large lawns with ease and efficiency. As part of STIHL’s 4 Series range, it combines lightweight handling with quiet operation, making it an excellent choice for residential areas. This model is supplied as a tool only, allowing you to use existing batteries and chargers from the STIHL AK System.
Engineered for durability, the mower features a rugged polymer deck that is lightweight, rust-proof, and double-layered for extra stability. It’s also UV-resistant, ensuring it withstands the elements. The 41 cm (16″) cutting width is ideal for covering ground efficiently, while the single-point height adjustment offers a wide cutting range from 20mm to 100mm.
User-Focused Design and Features
A standout feature is the Vario self-drive, which allows you to adjust the mowing speed between 2.0 and 4.5 km/h via a control lever, matching your personal pace and lawn conditions perfectly. The mower’s versatility is further enhanced by its four cutting modes, which can be changed without tools: standard collection into the 52-litre grass box, side discharge, rear discharge (by removing the box), and an integrated mulching function.
The innovative comfort mono-handlebar provides unrestricted access to the grass catcher box, making removal and emptying significantly easier. This sturdy handlebar is also height-adjustable for ergonomic operation and folds down for compact, space-saving storage. The large 52-litre grass box includes a fill-level indicator, so you always know when it’s time to empty.
Advanced STIHL Technology
The RMA 443.3 V is packed with intelligent STIHL technology. The powerhead has two slots for AK batteries, enabling a quick switch-over when the first is depleted, extending your working time. Eco Mode automatically adjusts the engine speed to the required power, conserving energy for longer runtimes. The flow-optimised blades cut grass with minimal resistance, making the most of the battery’s charge. With an IPX4 rating, the mower is certified for use in all weather conditions.
| Battery Model | Max. Area per Charge |
|---|---|
| AK 10 | up to 135 m² |
| AK 20 | up to 270 m² |
| AK 30 | up to 350 m² |
| AK 30 S | up to 350 m² |
Please note: The stated area output per battery charge may vary depending on the application and operating mode.
As an established STIHL authorised dealer with over 100 years of experience, Sims Garden Machinery is more than just a box-shifter. Our trained sales staff are on hand to offer expert advice at our Stratford-upon-Avon showroom, ensuring you choose the right machine for your needs. For local customers, this lawnmower benefits from our free pre-delivery inspection (PDI) by our trained mechanics, local delivery, and a comprehensive handover demonstration, giving you complete confidence from day one.
Not sure which machine or part is right for you?
Our team is here to help. Contact us today for expert advice.
Our team is here to help. Contact us today for expert advice.
Technical Specification
| Specification | Value |
|---|---|
| Battery System | AK System |
| Drive Speed | 2.0 – 4.5 km/h (Variable) |
| Recommended Battery | AK 30 S |
| Device Weight (without battery) | 26 kg |
| Cutting Width | 41 cm / 16″ |
| Cutting Height | 20 – 100 mm |
| Rated Speed | 3000 rpm |
| IP Rating | IPX4 (Splashwater protected) |
| Max. Area per Charge (AK 10) | 135 m² |
| Max. Area per Charge (AK 20) | 270 m² |
| Max. Area per Charge (AK 30 / 30 S) | 350 m² |
| Grass Catcher Box Volume | 52 l |
| Sound Power Level (LWA) | 90 dB(A) |
| Vibration Value (ahw) | 1.40 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 RMA 443.3 V suitable for?
This mower is ideal for home gardeners with medium to large lawns, capable of covering up to approximately 350 m² on a single AK 30 S battery charge. Its Vario self-drive makes it particularly good for sloped gardens or for users who prefer an assisted mowing experience.
What batteries and chargers are compatible with the RMA 443.3 V?
This mower is part of the STIHL AK System. It is compatible with all AK batteries (AK 10, AK 20, AK 30, AK 30 S) and chargers from this range. This model is sold as ‘Tool Only’, so the battery and charger must be purchased separately if you don’t already own them.
What are the mowing options available on this model?
The RMA 443.3 V is highly versatile, offering four mowing functions without needing extra tools: standard collection into the 52-litre grass box, side discharge using the integrated flap, rear discharge (by removing the box), and mulching.
Is this lawnmower difficult to store?
No, it’s designed for convenient storage. The height-adjustable mono-handlebar can be folded down, making the mower compact enough to store easily in a garage or shed.
Why should I buy a STIHL mower from an authorised dealer like Sims?
Buying from an authorised STIHL dealer like Sims Garden Machinery ensures you receive a genuine product with a full UK warranty. For local customers, our trained mechanics perform a free pre-delivery inspection (PDI) and provide a handover demonstration to ensure you are comfortable with the machine’s operation and features.
User Manuals / Downloads
Additional information
| Dimensions | 120 × 54 × 55 cm |
|---|---|
| Brand | STIHL |
| 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. | 52 |
| Cutting MethodThe cutting mechanism used (e.g., Rotary or Cylinder). | Rotary |
| Cutting WidthThe width of the grass cut in a single pass. | 41 cm |
| Deck MaterialThe material the cutter deck is constructed from (e.g., Steel, Aluminium). | Polymer |
| Drive TypeHow the mower is propelled (e.g., Push, Self-Propelled, Variable Speed). | Self-Propelled |
| Mowing FunctionsAvailable mowing modes (e.g., Collection, Mulching, Side-Discharge). | Collection, Mulch, Rear-Discharge, 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). | Battery |
| Weight (Net)The weight of the machine itself, excluding any fuel and packaging (kg). | 26 |
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Accessories & PPEShop Now 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.
Shipping & Delivery
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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