The STIHL RM 4.0 RT is a robust and efficient petrol mulching lawn mower, purpose-built for users who want to return nutrients directly to the soil. With a 53 cm cutting width and self-propelled (single-speed) drive, it offers excellent coverage for medium to large lawns, especially where regular mowing and fertilisation are part of the routine.
Instead of collecting grass clippings, the RM 4.0 RT finely shreds them using a special mulching blade, allowing the cuttings to be evenly distributed back onto the lawn. This process naturally fertilises the grass and improves moisture retention, saving time and reducing waste. The mower features central cutting height adjustment (30–70 mm), a rugged powder-coated steel deck, and ergonomic handlebars for comfort during extended use.
Ideal for eco-conscious users and professionals seeking a healthy lawn with minimal fuss.
✅ Key Benefits:
Self-propelled (single-speed) drive – makes mowing large areas effortless
53 cm cutting width – ideal for lawns up to approx. 2,000 m²
Mulching blade system – finely shreds clippings and returns them to the lawn
No grass catcher needed – save time and reduce green waste
Central cutting height adjustment (30–70 mm) – adaptable to conditions and lawn health
Powder-coated steel deck – durable and corrosion-resistant
Ergonomic, foldable handlebar – for comfort and compact storage
🧰 What’s Included:
1x STIHL RM 4.0 RT Petrol Lawn Mower (Model 63830113411)
1x Operator’s Manual
🛢️ Fuel Info:
Powered by unleaded petrol (4-stroke engine)
No fuel mixing required
| Brand | Stihl |
|---|---|
| Cutting width (cm / inches) | 53 / 21 |
| Cutting height (mm) | 30 – 70 (5×, central) |
| Maximum lawn area (m²) | 2500 |
| Weight (kg) | 35 |
| Sound pressure level (dB(A)) | 79 |
| Sound power level (dB(A)) | 91 |
| Vibration level left / right (m/s²) | 3.2 |
| Power output (kW / hp) | 2.2 / 3.0 |
| Working speed (rpm) | 2800 |
| Uncertainty factor Sound pressure level K (dB(A)) | 2 |
| Engine type | Kohler HD675 s e |
| Drive (km/h) | T / 4.9 |
| Uncertainty factor Vibration Level K (m/s²) | 1.6 |
| Mulching function | Yes |
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