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STIHL MS 661 CM Magnum® 20" Gas-Powered Chainsaw

STIHL MS 661 CM Magnum® 20" Gas-Powered Chainsaw

  • | SKU MS661CM20
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Product Description

STIHL MS 661 CM Magnum® 20" Gas-Powered Chainsaw is a reliable choice for professionals tackling large-scale tree felling tasks. Boasting an impressive power-to-weight ratio and equipped with STIHL M-Tronic™ engine management technology, this chainsaw ensures optimal performance, reduced vibration, and 20% greater fuel efficiency compared to its predecessor. The MS 661 CM features a long-life filter system with HD-2 filter elements, extending run times between maintenance intervals. With additional features like the ElastoStart™ handle and a high-output adjustable oiler, this chainsaw is a powerhouse designed to meet the demands of professional forestry work.
 
Model Number: MS 661 C-M 20
 
 

Note: STIHL recommends use of fuel with no more than 10% Ethanol content. Using fuel with greater than 10% Ethanol content may cause damage to your equipment and may void your STIHL warranty.

IMPORTANT SAFETY INFORMATION: The occurrence called “kickback” can cause serious or fatal injury. Always read the instruction manual carefully before using your saw. STIHL uses a green and yellow color-coding system to help you select a powerhead, bar and chain combination that complies with the kickback requirements of ANSI Standard B175.1 (gasoline-powered saws) and §30 of UL 1662/ ANSI Standard B175.1 (electric chainsaws). Ask your STIHL dealer about safe operating procedures and the advantages of the STIHL Quickstop® chain brake, STIHL Quickstop® Plus additional chain braking feature, STIHL reduced kickback bars and STIHL low-kickback saw chains.

Specifications

  • Power Source: Gas
  • Powerhead Weight: 16.5 lbs.
  • Guide Bar Length: 25 in.
  • Oilomatic Chain: 3/8" RS3
  • Chain Oil Capacity: 13.5 oz.
  • Engine Power: 7.2 bhp
  • Fuel Capacity: 28.7 oz.
  • Displacement: 91.1 cc

Manuals

Misplace the user manual? No problem! Hartville Hardware is here to help. Below is the user manual for the STIHL MS 661 CM Magnum 20" Gas-Powered Chainsaw. Read it before you buy it, or come back and download it if you have any questions after getting your product home.

STIHL MS 661 CM Magnum 20" Gas-Powered Chainsaw

Warranty & Certifications

STIHL Limited Warranty can be found here: Click to View

All STIHL products are warranted for 3 months when the product is used for rental purposes.

All STIHL axes, hedge shears, loppers, pruners, and pruning saws are warranted against defective material or workmanship until the product is no longer available while owned by the original purchaser (other than for the purpose of resale) when used for all applications.

STIHL products sold through U.S. dealers are only for distribution in the United States.

 

Double your waranty logo
DOUBLE THE LIFE OF YOUR LIMITED WARRANTY 
 
Double the life of your limited warranty for qualifying products in your purchase. For gas tools, add a 6-pack of Ultra Oil or a gallon of MotoMix® to your purchase.

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