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MS 661 C-M Petrol Chainsaw
SKU: Stihl | MS-1144 200 0006
- Regular price
- £1,244.54 Ex VAT
- £1,493.45 Inc VAT
- RRP: £1,464.17 Ex VAT
- Sale price
- £1,244.54 £1,244.54 Ex VAT
- Regular price
-
- £1,493.45 £1,493.45 Inc VAT
Free Standard UK Delivery Over £75 +VAT
Easy Returns
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Product information & specifications
STIHL MS 661 C-M Petrol Chainsaw – Magnum Power for Professional Forestry
The STIHL MS 661 C-M stands as one of STIHL’s most robust, high-performance chainsaws. Built for heavy forestry and large-scale timber work, it combines a potent 91.1 cm³ 2-MIX engine with advanced M-Tronic electronic management for effortless power delivery, exceptional fuel efficiency, and unwavering reliability.
Key Features
- Powerful 2-MIX Engine (91.1 cm³, 5.4 kW / 7.3 hp) – Delivers formidable cutting performance with notable reductions in fuel use and emissions.
- STIHL M-Tronic Engine Management – Automatically adjusts timing and fuel mix to maintain peak performance across all conditions.
- ElastoStart™ & Manual Decompression Valve – Reduce starting effort and protect the starter mechanism from stress.
- HD2 Washable Air Filter – Withstands dusty environments while delivering long-term engine protection and easy maintenance.
- Ematic™ Oil Lubrication System – Optimises bar and chain lubrication to reduce oil consumption by up to 50%.
- Anti-Vibration System – Reduces hand-arm fatigue during prolonged use with advanced vibration dampening.
- Side-Mounted Chain Tensioner & Tool-Free Caps – Quick chain adjustments and fast refilling for uninterrupted workflow.
Technical Specifications
| Displacement | 91.1 cm³ |
| Power Output | 5.4 kW / 7.3 hp |
| Weight (without bar & chain) | 7.5 kg |
| Power-to-Weight Ratio | 1.4 kg/kW |
| Recommended Bar Lengths | 50 cm – 90 cm (20″–36″) |
| Chain Type | 3/8″ RS |
| Sound Pressure / Power Levels | 105 / 115 dB(A) |
| Vibration (L/R) | 6.9 / 5.6 m/s² |
| CO₂ Emissions | 679 g/kWh |
Specifications verified from official STIHL
Why Choose the MS 661 C-M?
- Exceptional performance for demanding forestry, logging, and big timber applications.
- Enhanced usability via intuitive electronic engine tuning with M-Tronic.
- Effortless starting and reduced operator fatigue through ElastoStart and anti-vibration design.
- Durable and service-friendly: long-life filter, efficient lubrication, and easy-to-use controls.
When power, reliability, and precision matter most, the STIHL MS 661 C-M delivers like no other—with professional-grade performance you can trust.
| Bar length | 71-90 cm |
| Bar length | 28-36 " |
| Displacement | 91.1 cm³ |
| Power output | 5.4/7.3 kW/HP |
| Weight | 7.5 kg 1) |
| Power-to-weight ratio | 1.4 kg/kW |
| Weight | 9.22 / 10.38 kg 2) |
| Length with bumper strike | 467 mm |
| Sound pressure level | 105 dB(A) 3) |
| Sound power level | 118 dB(A) 3) |
| Vibration values left/right | 6.9/5.6 m/s² 4) |
| Saw chain pitch | 3/8 " |
| CO2 | 679 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 661 C-M Petrol Chainsaw – Magnum Power for Professional Forestry
The STIHL MS 661 C-M stands as one of STIHL’s most robust, high-performance chainsaws. Built for heavy forestry and large-scale timber work, it combines a potent 91.1 cm³ 2-MIX engine with advanced M-Tronic electronic management for effortless power delivery, exceptional fuel efficiency, and unwavering reliability.
Key Features
- Powerful 2-MIX Engine (91.1 cm³, 5.4 kW / 7.3 hp) – Delivers formidable cutting performance with notable reductions in fuel use and emissions.
- STIHL M-Tronic Engine Management – Automatically adjusts timing and fuel mix to maintain peak performance across all conditions.
- ElastoStart™ & Manual Decompression Valve – Reduce starting effort and protect the starter mechanism from stress.
- HD2 Washable Air Filter – Withstands dusty environments while delivering long-term engine protection and easy maintenance.
- Ematic™ Oil Lubrication System – Optimises bar and chain lubrication to reduce oil consumption by up to 50%.
- Anti-Vibration System – Reduces hand-arm fatigue during prolonged use with advanced vibration dampening.
- Side-Mounted Chain Tensioner & Tool-Free Caps – Quick chain adjustments and fast refilling for uninterrupted workflow.
Technical Specifications
| Displacement | 91.1 cm³ |
| Power Output | 5.4 kW / 7.3 hp |
| Weight (without bar & chain) | 7.5 kg |
| Power-to-Weight Ratio | 1.4 kg/kW |
| Recommended Bar Lengths | 50 cm – 90 cm (20″–36″) |
| Chain Type | 3/8″ RS |
| Sound Pressure / Power Levels | 105 / 115 dB(A) |
| Vibration (L/R) | 6.9 / 5.6 m/s² |
| CO₂ Emissions | 679 g/kWh |
Specifications verified from official STIHL
Why Choose the MS 661 C-M?
- Exceptional performance for demanding forestry, logging, and big timber applications.
- Enhanced usability via intuitive electronic engine tuning with M-Tronic.
- Effortless starting and reduced operator fatigue through ElastoStart and anti-vibration design.
- Durable and service-friendly: long-life filter, efficient lubrication, and easy-to-use controls.
When power, reliability, and precision matter most, the STIHL MS 661 C-M delivers like no other—with professional-grade performance you can trust.
| Bar length | 71-90 cm |
| Bar length | 28-36 " |
| Displacement | 91.1 cm³ |
| Power output | 5.4/7.3 kW/HP |
| Weight | 7.5 kg 1) |
| Power-to-weight ratio | 1.4 kg/kW |
| Weight | 9.22 / 10.38 kg 2) |
| Length with bumper strike | 467 mm |
| Sound pressure level | 105 dB(A) 3) |
| Sound power level | 118 dB(A) 3) |
| Vibration values left/right | 6.9/5.6 m/s² 4) |
| Saw chain pitch | 3/8 " |
| CO2 | 679 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
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.
