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STIHL®

20-Inch 59.0 cc Gas Chain Saw

Mfg.#
MS 311 20
Sku#
3654696
  • The advanced engine technology of this chainsaw improves fuel economy by up to 20% over previous model chainsaws for longer run times.
  • Powerful Low Exhaust Emission Engine - A powerful low exhaust emission engine saves users fuel and operating costs without losing the power they count on to get the job done.
  • IntelliCarb™ Compensating Carburetor is designed to automatically adjust the air/fuel ratio when the air filter becomes restricted or partially clogged and maintains the engine’s correct RPM.
  • Bumper Spikes - These spikes prevent pull-in and provide better control, making cutting easier.
  • Decompression Valve

* Estimated stock levels as of Tue, May 19, 2026. All items subject to prior sale. Prices may vary between stores and online. Please call ahead to confirm availability of items marked as Limited Stock.

Description

The MS 311 is a high-tech workhorse with low fuel consumption and reduced exhaust emissions. This powerful saw is ideal for large properties, farms, and ranches. It offers several comfort features, such as a side-access chain tensioner, an advanced anti-vibration system, and toolless fuel and oil caps with retainers. The MS 311 also has large fuel and oil tanks for extended use. With STIHL advanced engine technology, you get higher fuel economy and longer run times. You’ll stay productive while you’re saving money on fuel. With fuel-efficiency and a high-powered engine, the MS 311 will help reduce your downtime on the job—so you can enjoy your own downtime when the job is done.

Not for sale in California.

Specifications

General

Blade 20 in
Chain Oil Capacity 11.8 oz.
Chain Pitch 3/8 in
Chain Size 3/8" RS3
Chain Type OILOMATIC® CHAIN
Engine 59.0 cc
Engine Power 4.2 bhp
Fuel Capacity 20.3 oz.
Gauge 0.063 in
Power Source Gas
Powerhead Weight 13.67 lbs.
Type Gas Chain Saw

Manufacturing Details
The following information is subject to change without notice

Manufacturer Warranty 1 Year
Prop 65 Warning Warning WARNING: This product can expose you to chemicals, which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.
Shop USA Yes

Label Information

Precautionary Statement CAUTION: 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). STIHL recommends the use of green reduced kickback bars and green low kickback chains on all STIHL chainsaws. Improper use of any power tool may cause serious or fatal injury. Read, understand, and follow carefully the operating and safety instructions in your instruction manual before using such products.

Videos

Related Documents

Brochure (PDF)

Warranty (PDF)

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