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STIHL MS 661 C-M 20" Magnum® Gas-Powered Chainsaw

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STIHL MS 661 C-M 20" Magnum® Gas-Powered Chainsaw

SKU MS661CM20
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The STIHL MS 661 C-M 20" Magnum® Gas-Powered Chainsaw is built for demanding professionals tackling large-scale tree felling and heavy-duty cutting tasks. Featuring STIHL M-Tronic™ engine management technology, this chainsaw optimizes performance by automatically adjusting for changing conditions, ensuring reliable power output and 20% greater fuel efficiency compared to previous models. Its impressive power-to-weight ratio, combined with the HD-2 long-life air filter and ElastoStart™ handle, provides extended runtime and comfortable operation. The Ematic™ Lubrication System and high output adjustable oiler ensure efficient chain lubrication, while the IntelliCarb™ Compensating Carburetor maintains optimal engine performance even in challenging environments. Designed for professionals, the MS 661 C-M delivers the power, precision, and durability needed for the toughest jobs.

Features:

  • STIHL M-Tronic™ engine management for optimal performance
  • Ematic™ Lubrication System for efficient oil usage
  • STIHL ElastoStart™ handle for easier starting
  • IntelliCarb™ Compensating Carburetor for consistent engine power
  • HD-2 air filter for extended maintenance intervals
  • High output adjustable oiler for customized lubrication
  • Exceptional power-to-weight ratio for professional use
  • Reduced vibration for increased operator comfort

Model Number: MS 661 C-M 20

Power Source

Gas

Powerhead Weight

16.5 pounds

Guide Bar Length (Recommended)

25 inches

OILOMATIC® Chain

3/8 inches RS3

Chain Oil Capacity

13.5 ounces

Engine Power

7.2 bhp

Fuel Capacity

28.7 ounces

Displacement

91.1 cc

Intended Use

Professional

Compatible Guide Bar Ranges

16 inches to 36 inches

Power Source Gas
Powerhead Weight 16.5 pounds
Guide Bar Length (Recommended) 25 inches
OILOMATIC® Chain 3/8 inches RS3
Chain Oil Capacity 13.5 ounces
Fuel Capacity 28.7 ounces
Displacement 91.1 cc
Intended Use Professional
Compatible Guide Bar Ranges 16 inches to 36 inches

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

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.

 

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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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