STIHL MS 391 Petrol Chainsaw for tree surgeons, robust and high-torque, ideal for agricultural use.
STIHL MS 391 petrol chainsaw, ideal for tree surgeons and heavy agricultural tasks, showcasing robust design and performance.
Close-up of a chainsaw engine with a focus on the filter and brand logo.
    STIHL MS 391 Petrol Chainsaw for tree surgeons, robust and high-torque, ideal for agricultural use.
    STIHL MS 391 petrol chainsaw, ideal for tree surgeons and heavy agricultural tasks, showcasing robust design and performance.
    Close-up of a chainsaw engine with a focus on the filter and brand logo.
STIHL MS 391 Petrol Chainsaw for tree surgeons, robust and high-torque, ideal for agricultural use.

FREE CHAIN

STIHL MS 391 petrol chainsaw, ideal for tree surgeons and heavy agricultural tasks, showcasing robust design and performance.

FREE CHAIN

Close-up of a chainsaw engine with a focus on the filter and brand logo.

FREE CHAIN

Stihl

MS 391 Petrol Chainsaw

SKU: Stihl | MS-1140 200 0747

Regular price
£706.21 Ex VAT
£706.21 £706.21 Ex VAT
Shipping calculated at checkout.
Guide Bar Length
Regular price
£706.21 Ex VAT
£847.45 Inc VAT
RRP: £815.84 Ex VAT
Sale price
£706.21 £706.21 Ex VAT
Regular price
£847.45 £847.45 Inc VAT

or 4 interest-free
payments of £211.86 with

Free Delivery Over £75 *

Worldwide Shipping from the UK

Trusted UK Arborist Retailer

30-Day Easy Returns

STIHL Approved Dealer


As a STIHL Approved Dealer, we supply genuine UK-spec machines with full manufacturer warranty, professional preparation, and expert aftersales support.

In-Store Collection – Professionally Prepared

Your machine is assembled and safety-checked by our trained in-store team.

You’ll receive a full handover with clear operating guidance and essential maintenance advice.

Product information & specifications

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STIHL MS 391 Petrol Chainsaw

Free Spare Chain Available

Worth £20–£40 depending on model

When you add this STIHL chainsaw to your cart, your free matching chain will appear automatically. Simply click “Add Free Item” in the cart to include it with your order.

  • Matching chain for this model
  • Ideal for quick swaps on the job
  • Helps reduce downtime

Your free chain will appear in the cart — just click “Add Free Item” before checkout.

The STIHL MS 391 Petrol Chainsaw is a powerful, high-torque all-round petrol chainsaw built for demanding work in agriculture, estate maintenance, timber construction and serious firewood processing. Designed for users who need strong cutting performance with excellent durability, the MS 391 is a dependable choice for heavy-duty ground work and regular saw use.

Powered by a 64.1cc STIHL 2-MIX engine, the STIHL MS 391 delivers a strong 3.3kW output with excellent torque across a wide rev range, making it ideal for cutting larger timber, processing firewood and general farm or land management work. It also offers improved efficiency, with lower fuel consumption and reduced emissions compared to older non-2-MIX models. :contentReference[oaicite:0]{index=0}

If you need a STIHL petrol chainsaw with real cutting authority, straightforward handling and strong long-term reliability, the MS 391 is a serious workhorse.

Key Features

  • Powerful 64.1cc STIHL 2-MIX engine
  • 3.3kW power output for demanding cutting tasks
  • Ideal for firewood, timber construction and agricultural use
  • Manual decompression valve for easier starting
  • Side-mounted chain tensioning for fast adjustment
  • Controlled-delivery oil pump for reduced oil consumption
  • STIHL Ematic system for efficient chain lubrication
  • Long-life air filter system for extended service intervals
  • Tool-free fuel and oil caps for quick refuelling
  • STIHL anti-vibration system for greater comfort

Built for Heavy-Duty Cutting

The STIHL MS 391 is designed for users who regularly tackle bigger, tougher cutting jobs. Its strong torque characteristics make it especially effective for harvesting firewood, processing larger logs, timber work and general estate or agricultural cutting duties.

It is a great option for professionals and serious landowners who want a saw with more authority than mid-range domestic machines, while still offering practical everyday usability.

Efficient Power with Lower Running Costs

The STIHL 2-MIX engine helps the MS 391 deliver excellent performance while reducing fuel use and emissions. STIHL’s four-channel technology improves combustion efficiency, while the compensator carburettor system helps maintain consistent engine performance even as the air filter becomes dirty over time. :contentReference[oaicite:1]{index=1}

This helps reduce maintenance interruptions and supports dependable day-to-day performance in tough working environments.

Easy Starting & Operator Comfort

The integrated manual decompression valve reduces the effort needed to start the saw, making it easier and more comfortable to get going. Once running, the STIHL anti-vibration system helps reduce fatigue by limiting vibration transfer into the handles during cutting. :contentReference[oaicite:2]{index=2}

This makes the MS 391 a more comfortable saw to use during longer cutting sessions, particularly when processing substantial volumes of timber or firewood.

Smarter Oil Management

The controlled-delivery oil pump and STIHL Ematic system help reduce unnecessary chain oil use while still ensuring the cutting attachment receives the lubrication it needs. This can help reduce running costs and improve efficiency, especially during regular use. :contentReference[oaicite:3]{index=3}

Technical Specifications

Specification Details
Engine Type STIHL 2-MIX Petrol Engine
Displacement 64.1cc
Power Output 3.3kW
Engine Power 4.5hp
Weight 6.3kg (without guide bar and chain)

Ideal For

  • Heavy agricultural chainsaw use
  • Firewood processing
  • Timber construction work
  • Estate and land management
  • Farm, forestry and horticultural cutting tasks

Best For

The STIHL MS 391 is best suited to users who need a larger-capacity saw for regular ground-based cutting and timber work. It is a strong choice for farms, estates and professional users who want reliable performance and long-term durability from a petrol chainsaw.

Why Choose the STIHL MS 391?

The STIHL MS 391 Petrol Chainsaw is a proven, high-torque saw built for serious cutting work. With strong performance, smart oil management, easier starting and excellent reliability, it is an ideal choice for users who need more from their chainsaw day in, day out.

Helpful Links

If you’re choosing the right setup for this product, you may also want to explore the related categories, accessories, and buying guides below.

Specification

Bar length 45-50 cm
Bar length 18-20 "
Displacement 64.1 cm³
Power output 3.3/4.5 kW/HP
Weight 6.2 kg 1)
Power-to-weight ratio 1.9 kg/kW
Weight 7.33 / 7.45 kg 2)
Length with bumper strike 458 mm
Sound pressure level 105 dB(A) 3)
Sound power level 117 dB(A) 3)
Vibration values left/right 4/4 m/s² 4)
Saw chain pitch 3/8 "
CO2 653 g/kWh

1)Without fuel, without bar and chain2)Without fuel, with bar and chain3)K-factor according to DIR 2006/42/EC = 2.5 dB (A)4)K-factor according to DIR 2006/42/EC = 2m / s ²

STIHL MS 391 Petrol Chainsaw

Free Spare Chain Available

Worth £20–£40 depending on model

When you add this STIHL chainsaw to your cart, your free matching chain will appear automatically. Simply click “Add Free Item” in the cart to include it with your order.

  • Matching chain for this model
  • Ideal for quick swaps on the job
  • Helps reduce downtime

Your free chain will appear in the cart — just click “Add Free Item” before checkout.

The STIHL MS 391 Petrol Chainsaw is a powerful, high-torque all-round petrol chainsaw built for demanding work in agriculture, estate maintenance, timber construction and serious firewood processing. Designed for users who need strong cutting performance with excellent durability, the MS 391 is a dependable choice for heavy-duty ground work and regular saw use.

Powered by a 64.1cc STIHL 2-MIX engine, the STIHL MS 391 delivers a strong 3.3kW output with excellent torque across a wide rev range, making it ideal for cutting larger timber, processing firewood and general farm or land management work. It also offers improved efficiency, with lower fuel consumption and reduced emissions compared to older non-2-MIX models. :contentReference[oaicite:0]{index=0}

If you need a STIHL petrol chainsaw with real cutting authority, straightforward handling and strong long-term reliability, the MS 391 is a serious workhorse.

Key Features

  • Powerful 64.1cc STIHL 2-MIX engine
  • 3.3kW power output for demanding cutting tasks
  • Ideal for firewood, timber construction and agricultural use
  • Manual decompression valve for easier starting
  • Side-mounted chain tensioning for fast adjustment
  • Controlled-delivery oil pump for reduced oil consumption
  • STIHL Ematic system for efficient chain lubrication
  • Long-life air filter system for extended service intervals
  • Tool-free fuel and oil caps for quick refuelling
  • STIHL anti-vibration system for greater comfort

Built for Heavy-Duty Cutting

The STIHL MS 391 is designed for users who regularly tackle bigger, tougher cutting jobs. Its strong torque characteristics make it especially effective for harvesting firewood, processing larger logs, timber work and general estate or agricultural cutting duties.

It is a great option for professionals and serious landowners who want a saw with more authority than mid-range domestic machines, while still offering practical everyday usability.

Efficient Power with Lower Running Costs

The STIHL 2-MIX engine helps the MS 391 deliver excellent performance while reducing fuel use and emissions. STIHL’s four-channel technology improves combustion efficiency, while the compensator carburettor system helps maintain consistent engine performance even as the air filter becomes dirty over time. :contentReference[oaicite:1]{index=1}

This helps reduce maintenance interruptions and supports dependable day-to-day performance in tough working environments.

Easy Starting & Operator Comfort

The integrated manual decompression valve reduces the effort needed to start the saw, making it easier and more comfortable to get going. Once running, the STIHL anti-vibration system helps reduce fatigue by limiting vibration transfer into the handles during cutting. :contentReference[oaicite:2]{index=2}

This makes the MS 391 a more comfortable saw to use during longer cutting sessions, particularly when processing substantial volumes of timber or firewood.

Smarter Oil Management

The controlled-delivery oil pump and STIHL Ematic system help reduce unnecessary chain oil use while still ensuring the cutting attachment receives the lubrication it needs. This can help reduce running costs and improve efficiency, especially during regular use. :contentReference[oaicite:3]{index=3}

Technical Specifications

Specification Details
Engine Type STIHL 2-MIX Petrol Engine
Displacement 64.1cc
Power Output 3.3kW
Engine Power 4.5hp
Weight 6.3kg (without guide bar and chain)

Ideal For

  • Heavy agricultural chainsaw use
  • Firewood processing
  • Timber construction work
  • Estate and land management
  • Farm, forestry and horticultural cutting tasks

Best For

The STIHL MS 391 is best suited to users who need a larger-capacity saw for regular ground-based cutting and timber work. It is a strong choice for farms, estates and professional users who want reliable performance and long-term durability from a petrol chainsaw.

Why Choose the STIHL MS 391?

The STIHL MS 391 Petrol Chainsaw is a proven, high-torque saw built for serious cutting work. With strong performance, smart oil management, easier starting and excellent reliability, it is an ideal choice for users who need more from their chainsaw day in, day out.

Helpful Links

If you’re choosing the right setup for this product, you may also want to explore the related categories, accessories, and buying guides below.

Specification

Bar length 45-50 cm
Bar length 18-20 "
Displacement 64.1 cm³
Power output 3.3/4.5 kW/HP
Weight 6.2 kg 1)
Power-to-weight ratio 1.9 kg/kW
Weight 7.33 / 7.45 kg 2)
Length with bumper strike 458 mm
Sound pressure level 105 dB(A) 3)
Sound power level 117 dB(A) 3)
Vibration values left/right 4/4 m/s² 4)
Saw chain pitch 3/8 "
CO2 653 g/kWh

1)Without fuel, without bar and chain2)Without fuel, with bar and chain3)K-factor according to DIR 2006/42/EC = 2.5 dB (A)4)K-factor according to DIR 2006/42/EC = 2m / s ²

STIHL Warranty

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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.

Downloads

MS 391 Manual

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.

Downloads

MS 391 Manual

Delivery & Returns

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UK Delivery

Fast, reliable delivery from our UK warehouse.

  • Free UK delivery on eligible orders over £75 +VAT. Long, heavy or oversized items may incur an additional delivery charge, shown at checkout.
  • UK Standard Delivery from £3.60 + VAT
    Estimated delivery: 2–4 working days
  • Next Working Day Delivery – £6.00 + VAT

    Order before 3:00pm (Monday–Friday) for next working day delivery

All UK orders are dispatched Monday–Friday and sent via a tracked courier service.

International Delivery

We ship worldwide from the UK.

  • Europe from £10.00

    Estimated delivery: 2–7 working days
  • Rest of the World from £12.00

    Estimated delivery: 2–11 working days

Shipping costs and delivery times are calculated at checkout based on destination and order contents.

Customs, Duties & Taxes

International orders may be subject to local import duties, taxes, or customs charges.

When UPS is selected at checkout, applicable duties and taxes are included in the total price. For other shipping services, duties and taxes may be charged separately on delivery and are the responsibility of the recipient.

Customs processing times may affect delivery estimates.


Returns

30-Day Return Policy

  • Items can be returned within 30 days of delivery
  • Products must be unused and in original condition
  • Return postage costs apply unless the item is faulty or incorrect


For full details, please visit our Shipping & Returns page.

UK Delivery

Fast, reliable delivery from our UK warehouse.

  • Free UK delivery on eligible orders over £75 +VAT. Long, heavy or oversized items may incur an additional delivery charge, shown at checkout.
  • UK Standard Delivery from £3.60 + VAT
    Estimated delivery: 2–4 working days
  • Next Working Day Delivery – £6.00 + VAT

    Order before 3:00pm (Monday–Friday) for next working day delivery

All UK orders are dispatched Monday–Friday and sent via a tracked courier service.

International Delivery

We ship worldwide from the UK.

  • Europe from £10.00

    Estimated delivery: 2–7 working days
  • Rest of the World from £12.00

    Estimated delivery: 2–11 working days

Shipping costs and delivery times are calculated at checkout based on destination and order contents.

Customs, Duties & Taxes

International orders may be subject to local import duties, taxes, or customs charges.

When UPS is selected at checkout, applicable duties and taxes are included in the total price. For other shipping services, duties and taxes may be charged separately on delivery and are the responsibility of the recipient.

Customs processing times may affect delivery estimates.


Returns

30-Day Return Policy

  • Items can be returned within 30 days of delivery
  • Products must be unused and in original condition
  • Return postage costs apply unless the item is faulty or incorrect


For full details, please visit our Shipping & Returns page.

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