STIHL FS91 Brush Cutter

Product Details & Features

The STIHL FS91 Brushcutter is a powerful, professional-grade petrol brushcutter designed for demanding grass and weed cutting across large areas. Ideal for landscapers, grounds maintenance teams and estate workers, this robust machine delivers strong torque, excellent fuel efficiency and reliable performance for regular professional use.

Powered by STIHL’s advanced 4-MIX® engine technology, the FS91 combines the benefits of 2-stroke and 4-stroke engines, providing strong pulling power with reduced emissions and lower fuel consumption.

Key Features:

STIHL 4-MIX® Petrol Engine – Delivers high torque, strong cutting performance and improved fuel efficiency with reduced emissions.

Professional Bike Handle Design – Provides excellent control and comfort during wide, sweeping cutting motions over large areas.

Robust Drive Shaft & Gearbox – Engineered for durability and long service life in demanding working environments.

Anti-Vibration System – Reduces vibration levels to improve comfort and minimise fatigue during extended use.

Efficient Air Filtration System – Extends service intervals and enhances engine longevity.

STIHL Proven Professional Build Quality – Designed for reliable daily use and long-term performance.

Ideal For:

Cutting tough grass and heavy weeds
Large-area vegetation management
Professional landscaping and grounds maintenance
Estate, park and property maintenance

Product Details:

Product Type: Petrol Brushcutter
Engine Type: STIHL 4-MIX® petrol engine
Handle Type: Bike handle
Application: Professional grass and vegetation cutting

Why Choose This Brush Cutter:

The STIHL FS91 Brush Cutter offers professional cutting performance with excellent efficiency and durability. Its powerful 4-MIX® engine, ergonomic bike handle and robust construction make it ideal for intensive vegetation control across large areas. Built to STIHL’s professional standards, it delivers dependable results day after day with reduced operating costs.

The STIHL FS91 is a popular brush cutter from STIHL's range of brush cutters that are suited to cutting long grass and landscape maintenance work.

Long grass, weeds and undergrowth are no match for the FS91 thanks to the power output of STIHL's efficient 4-Mix 2-stroke engine.

The cutter head is a bump feed head which means that when the mowing line is worn, you can simply tap the head on the ground gently and more line will be released automatically. When it is time to refill the cutting head, reloading cord is very easy.

The FS91 can also be fitted with several styles of optional metal blades for tackling longer grass, brush and small saplings. A two-tooth metal grass cutting blade is supplied as standard.

The bike handle configuration makes the FS91 best suited to prolonged work in larger areas. A full harness is supplied with the FS91 and, during operation, most of the weight of the brush cutter is distributed away from the arms to the torso by the harness. The bike handles are comfortable to hold and are simply used for ‘steering’ the brush cutter.

The STIHL FS91 is, like all STIHL products, built to STIHL's exacting standards to give unrivalled performance, durability and reliability.

Extend your warranty by an extra year

Purchase a 5 litre bottle of STIHL MotoMix at the same time as buying this machine, and you'll get an extra year on your domestic use warranty - extending your warranty from two years to three. This is subject to STIHL's warranty terms, and machines used in a commercial application don't benefit from the warranty extension.

Simply add 5 litres of MotoMix to your cart alongside your machine before placing your order and we'll register your extended warranty with STIHL.

Full Harness

The full harness takes the weight of the brushcutter and is ergonomic and comfortable to wear.

Extend your Professional Use Warranty with a STIHL Smart Connector

Extend your commercial warranty from 1 to 2 years when you order a STIHL Smart Connector fleet management system with this machine.