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STIHL MS 661 R C-M MAGNUM

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Description

The STIHL MS 661 R C-M MAGNUM is a professional chainsaw built for heavy-duty forestry work. It pairs a 91.1 cc engine with a wrap handle for horizontal cutting positions. The wrap handle helps crews buck and fell timber from the ground. STIHL’s M-Tronic engine management keeps power consistent in changing conditions. A decompression valve makes this large engine easier to pull-start. The saw accepts long guide bars for cutting big timber. The STIHL Quickstop chain brake adds a layer of operator protection. Ask your Parallel Ag dealer about bar length and chain options for your job.

Condition New

Specifications

Model STIHL MS 661 R C-M MAGNUM
Power source Gas
Engine displacement 5.56 cu. in. (91.1 cc)
Engine power 7.20 bhp (5.4 kW)
Fuel capacity 27.9 fl. oz. (825 cc) — not independently confirmed by manufacturer
Chain oil capacity 12.1 fl. oz. (360 cc) — not independently confirmed by manufacturer
Chain type 3/8″ STIHL Rapid Super (RS) — exact drive-link count varies by guide bar length and is not independently confirmed for every length
Guide bar length 16″–32″ range not independently confirmed by manufacturer; a 36″ bar is confirmed as an available configuration for this engine family
Powerhead weight (without fuel, bar, or chain) 16.8 lbs. (7.6 kg)
Handle configuration Wrap handle (R), for horizontal cutting positions; available in select areas per manufacturer

Specifications are manufacturer’s estimates at time of publication and are subject to change without notice.

Features

Built for Heavy-Duty Forestry Work

Wrap Handle (R) Configuration
Positions the handle for horizontal bucking and felling work, a common choice for professional forestry crews.

STIHL M-Tronic Engine Management
Continuously adjusts ignition timing and fuel delivery for consistent power in changing conditions.

Decompression Valve
Reduces cylinder pressure to make pull-starting this large-displacement engine easier.

Built for Control & Safety

STIHL Quickstop Chain Brake
Stops chain rotation when activated by hand or by inertia during certain kickback events.

Anti-Vibration System
Reduces vibration transmitted to the operator’s hands and arms during extended use.

Bumper Spikes & Throttle Trigger Lockout
Help stabilize the saw during cuts and prevent accidental throttle activation.

Durable, Low-Maintenance Construction

HD2 Washable Air Filter
Extends service intervals in dusty, debris-heavy jobsite conditions.

Ematic Lubrication System
Can reduce bar oil consumption by up to 50%, per STIHL.

Side-Access Chain Tensioner with Lightweight Sprocket Cover
Captive bar nuts keep hardware from getting lost during field adjustments.

Parts & Service Support

Backed by Parallel Ag’s Parts & Service Team
Parallel Ag’s expert parts and service team is here to keep your MS 661 R C-M cutting at peak performance, with knowledgeable staff across all our locations ready to support you throughout the lifetime of your machine.

Genuine STIHL Parts
STIHL replacement parts and accessories are made to the same high standards as those used on the assembly line. Talk to your local Parallel Ag parts team to get the genuine parts you need, fast.

Attachment Guidance
Not sure which guide bar length fits your job? Parallel Ag’s team can help you choose the right setup.

Financing Available
Ask your Parallel Ag dealer about financing options to help you equip your shop or yard without the upfront cost.