STIHL MS 661 C-M
The STIHL MS 661 C-M is a high-performance professional chainsaw engineered for felling large timber with ease.

The STIHL MS 661 C-M is a powerful, professional-grade gasoline chainsaw designed specifically for demanding forestry applications and felling large trees. Built with an impressive power-to-weight ratio, this saw provides the reliability and cutting performance required for heavy-duty, high-volume work in hardwood environments.
Equipped with advanced STIHL M-Tronic engine management technology, the MS 661 C-M ensures optimal engine performance and easy starting in various conditions. It also features a 2-MIX engine that delivers 20% greater fuel efficiency and reduced emissions compared to previous models, making it a more sustainable and cost-effective choice for professionals.
Operator comfort and maintenance are prioritized through the inclusion of an anti-vibration system, which reduces fatigue during long shifts, and a long-life HD-2 air filtration system that extends intervals between cleanings. With its high-output adjustable oiler and robust construction, the MS 661 C-M is the go-to tool for professionals who need consistent power and durability in the field.
Key Features
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Call (985) 893-3720View on STIHLUSA.comSpecifications
- Power Source
- Gas
- Displacement
- 91.1 cc (5.6 cu-in)
- Engine Power
- 7.2 - 7.3 bhp
- Powerhead Weight
- 16.5 - 16.8 lbs
- Fuel Capacity
- 28.7 oz
- Chain Oil Capacity
- 13.5 oz
- Recommended Bar Length
- 18 to 36 inches