Selection Professional Chainsaws

MS 661 C-M

STIHL MS 661 C-M Chainsaw

General

Simply the most popular commercial chain saw in the world for felling, trimming and all commercial and forestry applications. The MS 661 C-M is a rugged all-roander equipped with STIHL's environmentally friendly 2-MIX engine technology for less fuel consumption, less emissions and outstanding cutting performance. In addition the MS 661 C-M features a heavy duty (HD2) air filter system with a radial seal which keeps out fine dust particles combined with the compensator the MS 661 C-M can now be used for 20% longer than the MS 660 before a filter clean is required. The MS 661 C-M is fitted with STIHL's M-TRONIC electronic engine management system which enables the saw to automatically adjust to varying fuel grades, changes in altitude and temperature and as there are no manual carburettor adjustments starting this saw is easier than ever before, simply push the start level to the on position and pull. The MS 661 C-M is now the only choice for professionals.

$2,499.00*

Versions

Price
  • Petrol Chainsaw - MS 661 C-M- 3/8"- 63cm/25"- Magnum Light bar
    $2,499.00*
  • Petrol Chainsaw - MS 661 C-M-3/8" 63cm/25"- Magnum ES Light bar
    $2,539.00*
  • Petrol Chainsaw - MS 661 C-M - 3/8"- 63cm/25"- Magnum ES Light bar 404
    $2,549.00*

*Prices are valid from the 15/11/2023 to 24/12/2023.
STIHL stores are operated as independent businesses. The products described in this website may not be on display or available at each STIHL store. STIHL reserves the right to change pricing at any time without notice.

The version(s) available in each country may differ from the above range and specifications; specific details may be subject to change without notice. Please ask your local STIHL Approved Dealer for further information.

Technical data

MS 661 C-M

Technical data

Technical data Value
Tank volume mL 850.00
Cutting length cm 63
Standard chain RAPID SUPER
Displacement cc 91.1
Displacement cu-in 5.56
Power output kW/PS 5.4/7.3
Weight kg 1) 7.6
Power-to-weight Ratio kg/kW 1.4
Sound pressure level dB(A) 2) 105
Sound power level dB(A) 2) 118
Chain pitch .404 ",3/8 "

1) Without fuel, without bar and chain
2) K-factor according to DIR 2006/42/EC = 2.5 dB (A)

The version(s) available in each country may differ from the above range and specifications; specific details may be subject to change without notice. Please ask your local STIHL Approved Dealer for further information.

Features

MS 661 C-M

Standard features

  • HD2-Filter Zoom
    HD2-Filter

    This air filter keeps even the finest dust away from the engine, ensuring a particularly long service life. Thanks to special material, the filter can be washed clean, for example with STIHL Varioclean and warm water.

  • Manual Decompression Zoom
    Manual Decompression

    The decompression valve is part of the easy start-system. The valve should be pressed before starting in order to reduce the compression pressure when starting, as well as the effort needed to pull the starter rope. The decompression valve is semi-automatic, meaning that it must be pressed manually before starting, but then closes automatically.

  • STIHL M-Tronic (FT) Zoom
    STIHL M-Tronic (FT)

    For a cold start, the STIHL M-Tronic only needs one start position on the combi-lever. After starting, you can immediately power up to full speed. The amount of fuel required is precisely calculated by the system and supplied as needed. Otherwise, start in position I as usual.

  • Captive bar nuts Zoom
    Captive bar nuts

    Bar nuts held captive in the sprocket cover will not get lost when changing over the cutting attachment.

  • CONTROLLED-DELIVERY OIL PUMP Zoom
    CONTROLLED-DELIVERY OIL PUMP

    The exact chain oil output can be adjusted maunally for varying conditions, allowing for a reduction of up to 50%.

  • QuickStop Chain Brake Zoom
    QuickStop Chain Brake

    The QuickStop chain brake is a protective mechanism when handling chainsaws. The chain brake is operated via the front hand guard and brings the saw chain to a standstill in fractions of a second. If the kickback is strong enough, the Quick Stop Chain Brake automatically releases.

  • Side-Mounted Chain Tensioning Zoom
    Side-Mounted Chain Tensioning

    The tensioning screw is located on the side of the chain saw through the sprocket cover. Chain side tensioning allows the saw chain to be retensioned effortlessly, avoiding any contact with the sharp chain.

  • STIHL Ematic-System Zoom
    STIHL Ematic-System

    The Ematic chain lubrication system ensures pinpoint lubrication of the saw chain links and guide bar rails. When used with STIHL OILOMATIC saw chain, it will provide maximum lubrication, longer wear and less oil consumption than conventional methods of chain lubrication. The Ematic system can reduce bar oil consumption up to 50%.

  • STIHL ElastoStart Zoom
    STIHL ElastoStart

    STIHL ElastoStart reduces the shock caused by the compression of the engine during starting. The compression shock is taken away from the users joints and muscles through a spring or rubber element in the starter handle.

  • Tool free fuel caps Zoom
    Tool free fuel caps

    Special caps on the fuel and oil tanks are designed for easy opening and locking without the need for tools.

The version(s) available in each country may differ from the above range and specifications; specific details may be subject to change without notice. Please ask your local STIHL Approved Dealer for further information.

Accessories

MS 661 C-M

Accessories

    • STIHL Moisture Meter Zoom
      STIHL Moisture Meter

      The STIHL moisture meter is lightweight and easily fits in your pocket. It has an easy to read screen with a wristband for safe holding. A simple on-off button and a removable sensor cover.

    Versions

    Price

    *Prices are valid from the 15/11/2023 to 24/12/2023.
    STIHL stores are operated as independent businesses. The products described in this website may not be on display or available at each STIHL store. STIHL reserves the right to change pricing at any time without notice.

    • ADVANCE X-Vent Helmet Zoom
      ADVANCE X-Vent Helmet

      Low weight helmet set with optimized balance. Ear caps in slim design.  Easy head size adjustment by ratched wheel even whilst wearing. Ventilation wholes spread over the entire shell. Metal visor: Spring steel mesh, very high light penetration. Light transmittance: 75-80%. Elastic visor sealing nlong the helmet against dirt and rain. Reflective Stickers all roand. Ear protect: EN 352, EN 397, EN 1731.

    Technical data Value
    Ear protection 109 dBA
    Weight 830 g
    Helmet material ABS
    Inner fittings 6-points
    Transparency 75 –80 %

    Versions

    Price

    *Prices are valid from the 15/11/2023 to 24/12/2023.
    STIHL stores are operated as independent businesses. The products described in this website may not be on display or available at each STIHL store. STIHL reserves the right to change pricing at any time without notice.

    • Multi-Functional Tool Zoom
      Multi-Functional Tool

      Practical, multifunctional quality tool in a sturdy plastic case with both a 3.5 mm (for carburetor adjustments and cleaning grooves) and 7.0 mm slotted screwdriver. Torx blade TX27 and 19-13 and 19-16 spark plug wrenches. Includes a nylon bag and belt loop.

    Versions

    Price

    *Prices are valid from the 15/11/2023 to 24/12/2023.
    STIHL stores are operated as independent businesses. The products described in this website may not be on display or available at each STIHL store. STIHL reserves the right to change pricing at any time without notice.

    • Multispray Zoom
      Multispray

      Multi function spray that cleans a number of tools and leaves a protective film that does not harden on the surface and thereby protects against corrosion. Rotating parts are lubricated. An essential all-roander for every workshop. 400ml spray can.

    Versions

    Price

    *Prices are valid from the 15/11/2023 to 24/12/2023.
    STIHL stores are operated as independent businesses. The products described in this website may not be on display or available at each STIHL store. STIHL reserves the right to change pricing at any time without notice.

    • Rapid Super (RS), 3/8 Zoom
      Rapid Super (RS), 3/8"

      Comfort saw chain with low vibration, soft cutting behavior and less chatter and extremely high cutting and piercing power. For professional use in forestry. Our recommendation for machines with engine power over 2.5 kW. For hard and frozen wood.

    Technical data Value
    Chain pitch 9.32mm/3/8",9.32mm/3/8"
    Drive link thickness 1.6mm/.063",1.6mm/.063"
    Rail length 1 (*) 40cm/16",45cm/18",50cm/20",55cm/22",63cm/25",71cm/28",75cm/30",80cm/32",90cm/36",nicht relevant
    Number of drive links 105 Tg,114 Tg,1.640 Tg,410 Tg,60 Tg,66 Tg,72 Tg,76 Tg,84 Tg,85 Tg,91 Tg,98 Tg

    Versions

    Price

    *Prices are valid from the 15/11/2023 to 24/12/2023.
    STIHL stores are operated as independent businesses. The products described in this website may not be on display or available at each STIHL store. STIHL reserves the right to change pricing at any time without notice.

    • Rollomatic E - 3/8 Zoom
      Rollomatic E - 3/8" - 11 Z

      High-quality standard with excellent cutting and piercing power. Main application: For high demands in professional applications during felling and bucking on chainsaws medium to high capacity. Rail body: Three-welded metal plates. The middle is cut out over a large area. This high stability at very favorable weight. Saw chain runs over exchangeable, robust bearing sprocket with 11 teeth, which must not be lubricated. Extremely robust Stern storage with 6 rivets.

    Technical data Value
    Cutting length 40cm/16",45cm/18",50cm/20",63cm/25"
    Nose sprocket pitch 9.32mm/3/8"
    Groove width 1.6mm/.063"
    busbar connection 3.003
    Number of teeth on the sprocket 11

    Versions

    Price

    *Prices are valid from the 15/11/2023 to 24/12/2023.
    STIHL stores are operated as independent businesses. The products described in this website may not be on display or available at each STIHL store. STIHL reserves the right to change pricing at any time without notice.

    • MotoMix Zoom
      MotoMix

      Available at participating stores. Ready-mixed fuel (50:1) for all STIHL engines, optimal performance, best cold start ability, maximum acceleration over the entire RPM range, best running characteristics even with a sudden gas change. Mixed with STIHL HP ultra premium oil for exceptional engine lubrication and extreme cleanliness, fully synthetic and biodegradable for optimal performance and long service life. User- and engine-friendly thanks to fewer emissions (free from ethanol; almost no olefins and aromatic compoands). Can be kept in storage for at least two years. Reliable top performance – STIHL engines and STIHL MotoMix are made for each other, all imaginable uses have been put through rigorous tests.

    Versions

    Price

    *Prices are valid from the 15/11/2023 to 24/12/2023.
    STIHL stores are operated as independent businesses. The products described in this website may not be on display or available at each STIHL store. STIHL reserves the right to change pricing at any time without notice.

    • SynthPlus Chain Oil Zoom
      SynthPlus Chain Oil

      Do you question which lubricant is suitable for which cutting attachment, climate zone or type of wood? No need to puzzle over the answers with semi-synthetic STIHL chain lubricant. Our high-performance lubricant is extremely suitable for all moving saw chains. Well protected. STIHL chain lubricant effectively protects saw chains from wear. Thanks to its high temperature resistance, cutting attachments are optimally protected even from short-duration maximum thermal loads. Smoking is inhibited. Keeps on flowing. Even at temperatures down to -20° C, STIHL chain lubricant retains its outstanding flow properties. Selected additives prevent resinification of the cutting attachment and other treated parts. And you can start using the saw straight away, even after an extended idle period.

    Versions

    Price

    *Prices are valid from the 15/11/2023 to 24/12/2023.
    STIHL stores are operated as independent businesses. The products described in this website may not be on display or available at each STIHL store. STIHL reserves the right to change pricing at any time without notice.

    • Bio Plus Bar & Cutter Lube - 1 litre Zoom
      Bio Plus Bar & Cutter Lube - 1 litre

      Particularly eco-friendly with outstanding lubrication and adhesive properties. STIHL BioPlus oil is derived from plants and completely decomposes in the groand within a short space of time (tested according to OECD 301 B). It has therefore been awarded the German 'Blue Angel' ecology mark and the Dollarspean Eco-Label.

    Versions

    Price
    • Bio Plus Bar & Cutter Lube - 1 litre $13.00*

    *Prices are valid from the 15/11/2023 to 24/12/2023.
    STIHL stores are operated as independent businesses. The products described in this website may not be on display or available at each STIHL store. STIHL reserves the right to change pricing at any time without notice.

    • ForestPlus chain oil Zoom
      ForestPlus chain oil

      Based on high-quality mineral oils. Reliable lubrication, no or resinification, even during prolonged downtimes.

    Versions

    Price

    *Prices are valid from the 15/11/2023 to 24/12/2023.
    STIHL stores are operated as independent businesses. The products described in this website may not be on display or available at each STIHL store. STIHL reserves the right to change pricing at any time without notice.

    • HP Ultra 2-Stroke Engine Oil Zoom
      HP Ultra 2-Stroke Engine Oil

      Fully synthetic oil with exceptional lubrication properties. Burns with extremely low residue due to ash-free additive. Suitable for continuous use ander the most demanding engine conditions. Performance class: JASO-FB, ISO-L-EGB. Fuel/oil ratio 1:50.

    Versions

    Price

    *Prices are valid from the 15/11/2023 to 24/12/2023.
    STIHL stores are operated as independent businesses. The products described in this website may not be on display or available at each STIHL store. STIHL reserves the right to change pricing at any time without notice.

    • STIHL VarioClean Zoom
      STIHL VarioClean

      Water based, alkaline detergent specifically for dissolving and removing organic oil residues and for cleaning air filters and housings. The detergent is biodegradable. Avoid contact with the eyes and keep out of reach of children.

    Versions

    Price

    *Prices are valid from the 15/11/2023 to 24/12/2023.
    STIHL stores are operated as independent businesses. The products described in this website may not be on display or available at each STIHL store. STIHL reserves the right to change pricing at any time without notice.

The version(s) available in each country may differ from the above range and specifications; specific details may be subject to change without notice. Please ask your local STIHL Approved Dealer for further information.

Documents

Owners manuals and safety brochures

Languages Date Link
manual icon en 26/07/2022