Home Delivery - $8 on all online orders
Store Pick Up - FREE. Includes assembly of tools prior to collection. The store will contact you when your order is ready.
We will happily accept returns or exchanges up to 14 days after the date of purchase, provided the products are in their original condition and packaging. Click here to view our full Returns Policy
All STIHL products purchased online will be issued a STIHL warranty.
1. Tools used for home/farming applications receive a 2 year warranty. Double the warranty of your STIHL 2 MIX, STIHL 4 MIX® and STIHL 2 Stroke petrol tools purchased online to 4 years by adding HP Ultra Oil (minimum 1L) to your purchase.
2. Tools used in a professional application receive a 6 month warranty
3. STIHL Polymer Bodied/decked Lawnmowers (domestic use) receive a 10 year warranty on the polymer body (not associated parts) the handle and the catcher.
Click here to find out more about the STIHL Warranty
Built for farmers, landscapers, and tradies, the MS 391 petrol chainsaw packs serious cutting power into a comfortable, easy-to-use design, perfect for long days on the job. Whether you're felling trees, cutting firewood, or working with construction timber, this saw is built to take on tough tasks with confidence. With its strong performance and user-friendly features, the MS 391 is a reliable choice for demanding work on farms, lifestyle blocks, or job sites.
Big Power, Great Balance: With 3.3 kW (4.5 hp) of output and a strong power-to-weight ratio of 1.9 kg/kW, the MS 391 gives you all the power you need, without the extra weight.
Fuel-Efficient Performance: The STIHL 2-MIX engine is designed to deliver high performance while using less fuel and producing fewer emissions.
Easy Starting: The decompression valve reduces the effort needed to pull the starter cord, making it easier to get going, especially on cold mornings or after breaks.
Smart Oil Delivery: The controlled-delivery oil pump lets you adjust lubrication depending on the job, perfect for long guide bars or dry wood and helps reduce oil use when you don’t need as much.
Efficient Chain Lubrication: The STIHL Ematic system ensures every drop of oil goes exactly where it’s needed, helping extend chain life and reduce waste.
Less Time on Maintenance: The pre-separation air routing removes coarse dirt before it hits the filter, meaning fewer cleanings and longer run time. Want even more time between services? Add the optional HD2 air filter for a long-life upgrade.
Power Source
Petrol
Engine Power (kW)
3.3
Displacement (cc)
64.1
Weight (kg)
6.21)
Power to Weight Ratio (kg/kW)
1.91)
STIHL Engine Type
2-MIX
Standard Bar
Chain Type
3/8 inches Rapid Micro, 20 inches or 50 cm,72 Drive Links
Replacement Guide Bar Options
16 inch (40 cm) up to 25 inch (63 cm)
Max Wood Diameter
20 inches or 50 cm







Q: What type of property is it suitable for?
A: This saw is ideal for private users or farmers felling small to medium sized trees, cutting firewood and general property maintenance
Q: What size branches can I cut with the standard bar?
A: Medium diametre branches up to 20"
Q: What should I wear when using this Chainsaw?
A: We recommend that you wear snug-fitting clothes with Chainsaw protective legwear, eye protection, gloves, ear protection, sturdy boots or shoes, and tie back long hair.
Q: What is the maximum size bar I should use on this Chainsaw?
A: This saw will run efficiently with an up to 20" 50 cm bar