FS 91 Petrol Brushcutter
SKU: Stihl | FS-4180 200 0684
- Regular price
- £491.58 Ex VAT
- £589.90 Inc VAT
- RRP: £578.33 Ex VAT
- Sale price
- £491.58 £491.58 Ex VAT
- Regular price
-
- £589.90 £589.90 Inc VAT
- Was £578.33 Ex VAT
Free Standard UK Delivery Over £75 +VAT
Easy Returns
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Product information & specifications
STIHL FS 91 Petrol Brushcutter
Designed for UK landscaping professionals, arborists, forestry crews and serious domestic users who need reliable clearing power and ease of use on thicker vegetation. The STIHL FS 91 petrol brushcutter combines a powerful yet lightweight engine with rugged build quality and ergonomic design, making it ideal for tackling tough grass, brambles, weeds, light scrub and undergrowth — whether in gardens, woodland edges or forestry access tracks.
Key Features & Benefits
- Efficient 2-stroke petrol engine with STIHL anti-vibration system: Provides strong cutting power while minimising operator fatigue for extended use.
- Compact and ergonomic design: Easy to handle in tight spaces, around trees or along fences and boundaries without straining the user.
- Versatile cutting options: Works with a grass-trimmer head or metal cutting blade (depending on clearing needs), ideal for brush, brambles, weeds or thicker vegetation.
- Durable build for tough terrain: Engineered to withstand regular use in demanding environments — perfect for forestry edges, estate maintenance or farm tracks.
- Suitable for professional and domestic use: From estate maintenance to garden trimming, offers a balance of power, reliability and ease-of-use.
Technical Specifications
| Specification | Detail |
|---|---|
| Engine Type | 2-stroke petrol engine |
| Power Output / Displacement | Strong clearing power for grass & undergrowth |
| Handle & Support | Bike-handle with shoulder harness for comfort and control |
| Cutting Tools Compatibility | Grass-trimmer head or metal blade (for thicker scrub / brush) depending on model / attachments |
| Use Cases | Grass cutting, bramble & weed clearance, light scrub, hedgerow base trimming, woodland edge maintenance, estate/garden groundskeeping |
| Suitability | Professional landscaping & forestry, serious domestic ground maintenance |
Why Choose the FS 91?
The STIHL FS 91 offers dependable, consistent clearing power for a wide range of vegetation and terrain types — from gardens to woodland edges. Its blend of engine performance, operator comfort and rugged build make it a versatile tool: lightweight enough for regular estate or garden work, capable enough to handle tougher brush and undergrowth for forestry access tracks and site maintenance. For contractors, estate managers or even domestic users needing heavy-duty trimming, the FS 91 balances power and practicality.
Equip yourself for reliable clearing — order the STIHL FS 91 Petrol Brushcutter today and get going on your next job.
Trimmer Technical Data
| Starter Cord | Auto decompression / manual fuel pump (purger) / standard starter grip |
|---|---|
| Standard Cutting Tool | AutoCut C 26-2 & GrassCut 230-2 |
| Tank Cap | STV screw tank cap |
| EPA Certified Fuel Consumption l/h | 0.614 |
| Anti Vibration System | Yes |
| Tank Volume | 0.71l |
| Cutting Diameter | 420 |
| Total Length | 180 |
| Vibration Value, Right With Plastic Tool m/s2 | 5.5 |
| Sound Power Level dB(A) | 107 |
| Sound Pressure Level with Plastic Tool dB(A) | 96 |
| Weight | 5.8 |
| Displacement cm3 | 28.4 |
| Performance | 0.95 kW |
| Power Output hp | 1.3 |
| CO² g/kWh | 877 |
STIHL FS 91 Petrol Brushcutter
Designed for UK landscaping professionals, arborists, forestry crews and serious domestic users who need reliable clearing power and ease of use on thicker vegetation. The STIHL FS 91 petrol brushcutter combines a powerful yet lightweight engine with rugged build quality and ergonomic design, making it ideal for tackling tough grass, brambles, weeds, light scrub and undergrowth — whether in gardens, woodland edges or forestry access tracks.
Key Features & Benefits
- Efficient 2-stroke petrol engine with STIHL anti-vibration system: Provides strong cutting power while minimising operator fatigue for extended use.
- Compact and ergonomic design: Easy to handle in tight spaces, around trees or along fences and boundaries without straining the user.
- Versatile cutting options: Works with a grass-trimmer head or metal cutting blade (depending on clearing needs), ideal for brush, brambles, weeds or thicker vegetation.
- Durable build for tough terrain: Engineered to withstand regular use in demanding environments — perfect for forestry edges, estate maintenance or farm tracks.
- Suitable for professional and domestic use: From estate maintenance to garden trimming, offers a balance of power, reliability and ease-of-use.
Technical Specifications
| Specification | Detail |
|---|---|
| Engine Type | 2-stroke petrol engine |
| Power Output / Displacement | Strong clearing power for grass & undergrowth |
| Handle & Support | Bike-handle with shoulder harness for comfort and control |
| Cutting Tools Compatibility | Grass-trimmer head or metal blade (for thicker scrub / brush) depending on model / attachments |
| Use Cases | Grass cutting, bramble & weed clearance, light scrub, hedgerow base trimming, woodland edge maintenance, estate/garden groundskeeping |
| Suitability | Professional landscaping & forestry, serious domestic ground maintenance |
Why Choose the FS 91?
The STIHL FS 91 offers dependable, consistent clearing power for a wide range of vegetation and terrain types — from gardens to woodland edges. Its blend of engine performance, operator comfort and rugged build make it a versatile tool: lightweight enough for regular estate or garden work, capable enough to handle tougher brush and undergrowth for forestry access tracks and site maintenance. For contractors, estate managers or even domestic users needing heavy-duty trimming, the FS 91 balances power and practicality.
Equip yourself for reliable clearing — order the STIHL FS 91 Petrol Brushcutter today and get going on your next job.
Trimmer Technical Data
| Starter Cord | Auto decompression / manual fuel pump (purger) / standard starter grip |
|---|---|
| Standard Cutting Tool | AutoCut C 26-2 & GrassCut 230-2 |
| Tank Cap | STV screw tank cap |
| EPA Certified Fuel Consumption l/h | 0.614 |
| Anti Vibration System | Yes |
| Tank Volume | 0.71l |
| Cutting Diameter | 420 |
| Total Length | 180 |
| Vibration Value, Right With Plastic Tool m/s2 | 5.5 |
| Sound Power Level dB(A) | 107 |
| Sound Pressure Level with Plastic Tool dB(A) | 96 |
| Weight | 5.8 |
| Displacement cm3 | 28.4 |
| Performance | 0.95 kW |
| Power Output hp | 1.3 |
| CO² g/kWh | 877 |
STIHL Warranty
STIHL offer a 1 year professional warranty or 2 year domestic warranty with all of their machines.
The following exceptions apply:
- AK System, AS System and AI Line cordless products aren't covered under warranty when used by professionals
- AP System machines, batteries and chargers - 2 year professional warranty
- Pressure washers - 2 year professional warranty or 3 year domestic warranty
- Mowers, tillers, shredders, scarifiers & iMOW machines - See STIHL's website here
Extend your Stihl warranty by an additional year when purchasing a STIHL Smart Connector with selected machinery from the petrol and cordless range. Extends your petrol warranty from 1 to 2 years AND 2 to 3 years on select cordless tools.
STIHL offer a 1 year professional warranty or 2 year domestic warranty with all of their machines.
The following exceptions apply:
- AK System, AS System and AI Line cordless products aren't covered under warranty when used by professionals
- AP System machines, batteries and chargers - 2 year professional warranty
- Pressure washers - 2 year professional warranty or 3 year domestic warranty
- Mowers, tillers, shredders, scarifiers & iMOW machines - See STIHL's website here
Extend your Stihl warranty by an additional year when purchasing a STIHL Smart Connector with selected machinery from the petrol and cordless range. Extends your petrol warranty from 1 to 2 years AND 2 to 3 years on select cordless tools.
Delivery & Returns
UK Standard Delivery from - £3.60
Estimated delivery 2-4 days
Free Delivery available for orders above £75+ VAT
Estimated delivery 2-4 days
Next Day Delivery - £7.99
Estimated delivery 1 day when ordered before 3PM Monday - Friday
International Delivery Europe from - £10.00
Estimated delivery 2-7 days
International Delivery Rest of the World from - £12.00
Estimated delivery 2-11 days
Returns
30-Day Return Policy
For more information on shipping options, visit our shipping page here.
UK Standard Delivery from - £3.60
Estimated delivery 2-4 days
Free Delivery available for orders above £75+ VAT
Estimated delivery 2-4 days
Next Day Delivery - £7.99
Estimated delivery 1 day when ordered before 3PM Monday - Friday
International Delivery Europe from - £10.00
Estimated delivery 2-7 days
International Delivery Rest of the World from - £12.00
Estimated delivery 2-11 days
Returns
30-Day Return Policy
For more information on shipping options, visit our shipping page here.

