STIHL FS 111 Series

Description

The STIHL FS 111 Series gives you a professional-grade trimmer in two handle styles built around the same 1.4 BHP STIHL 4-MIX engine: the bike handle FS 111 or the lighter, loop handle FS 111 RX. Both deliver a 16.5-inch cutting diameter with the TapAction AUTOCUT head, an IntelliCarb compensating carburetor for consistent RPM, and a fully-lined drive shaft with STIHL’s anti-vibration system for smooth, comfortable operation. Easy three-step starting and a heavy-duty steel-on-steel clutch keep both models reliable through a full day of professional trimming.

Compare Models

2 models to choose from. Click any model below to see full specs.

FS 111 | Bike Handle | 1.4 BHP
Model FS 111
Handle Type Bike handle
Engine STIHL 4-MIX® engine, low exhaust emission
Engine Displacement 1.9 in³
Power Output 1.4 bhp
Weight 12 lbs. (without fuel, cutting tool, or protection)
Fuel Tank Capacity 24 fl. oz.
Cutting Diameter 16.5 in.
Cutting Head TapAction™ AUTOCUT®
Drive Shaft Fully-lined drive shaft
Clutch Heavy-duty steel-on-steel centrifugal clutch
Carburetor IntelliCarb™ Compensating Carburetor
Starting Three-step simplified starting with purge pump primer; one-touch stop
FS 111 RX | Loop Handle | 1.4 BHP
Model FS 111 RX
Handle Type Loop handle
Engine STIHL 4-MIX® engine, low exhaust emission
Engine Displacement 1.9 in³
Power Output 1.4 bhp
Weight 11 lbs. (without fuel, cutting tool, or protection)
Fuel Tank Capacity 24 fl. oz.
Cutting Diameter 16.5 in.
Cutting Head TapAction™ AUTOCUT®
Drive Shaft Fully-lined drive shaft
Clutch Heavy-duty steel-on-steel centrifugal clutch
Carburetor IntelliCarb™ Compensating Carburetor
Starting Three-step simplified starting with purge pump primer; one-touch stop
Condition Used

Features

One Powerhead, Two Handle Styles

Choose Bike Handle or Loop Handle
The FS 111 comes with a bike handle for two-handed control, while the FS 111 RX offers a loop handle for tighter maneuverability around obstacles.

Same 1.4 BHP Across Both Models
Both models share the same 1.4 bhp STIHL 4-MIX engine, so you’re choosing a handle style, not sacrificing performance.

Lighter Loop Handle Option
The loop handle FS 111 RX comes in a pound lighter than the bike handle FS 111, at 11 pounds versus 12.

Built for Daily Commercial Use
Both the FS 111 and FS 111 RX are professional-grade trimmers designed for daily commercial use.

High-Torque STIHL 4-MIX® Engine

1.9 in³ Displacement, 1.4 BHP
A 1.9 cubic-inch STIHL 4-MIX engine delivers 1.4 brake horsepower with low exhaust emissions for all-day professional use.

IntelliCarb™ Compensating Carburetor
The IntelliCarb compensating carburetor maintains consistent RPM as the air filter loads up, keeping performance steady between cleanings.

24-Ounce Upright Fuel Tank
An upright, translucent 24-ounce fuel tank keeps you trimming longer and makes fuel level easy to check at a glance.

Fewer Engine Rebuilds
The 4-MIX design puts less strain on internal components, meaning fewer engine rebuilds over the life of the trimmer.

TapAction™ AUTOCUT® Cutting Head

16.5-Inch Cutting Diameter
A 16.5-inch cutting diameter covers ground efficiently on every pass.

Tap to Advance Line
The TapAction AUTOCUT head advances line with a simple tap on the ground — no bumping or stopping to manually feed line.

Quick, Easy Reloading
The AUTOCUT head is designed for quick, easy line reloading when you’re back at the trailer.

Consistent Cut Quality
A reliable line-feed system keeps cutting performance consistent from the first acre to the last.

Built for All-Day Comfort

STIHL Anti-Vibration System
A built-in anti-vibration system reduces operator fatigue over a full day of trimming.

Fully-Lined Drive Shaft
A fully-lined drive shaft delivers smooth power transfer with reduced vibration at the handle.

Multi-Function Control Handle
A one-handed multi-function control handle keeps throttle and stop controls centralized and within easy reach.

Throttle Trigger Interlock
A throttle trigger interlock helps prevent accidental acceleration for safer, more confident operation.

Easy Starting, Less Downtime

Three-Step Simplified Starting
A simplified three-step starting procedure with fuel primer, choke, and starter cord gets you working faster.

Purge Pump Primer
A purge pump primer helps get fuel to the engine quickly, reducing the number of pulls needed to start.

One-Touch Stop
A one-touch stop button with automatic throttle lock return shuts the engine down quickly and reliably.

Protected Spark Plug
A protected spark plug location makes routine maintenance quick and easy in the field.

Professional-Grade Durability

Heavy-Duty Steel-on-Steel Clutch
A heavy-duty steel-on-steel centrifugal clutch is built to hold up to daily commercial use.

High-Tech Polymer Housing
A lightweight, corrosion-resistant polymer housing keeps weight down without sacrificing durability.

Vertical Pleated Paper Air Filter
An easy-access vertical pleated paper air filter keeps debris out of the intake and extends engine life.

Built for Landscapers & Ag Operations
Durable, professional-grade construction holds up to fence lines, ditch banks, and everyday landscaping work alike.

Parts & Service Support

Backed by Parallel Ag’s Parts & Service Team
Parallel Ag’s expert parts and service team is here to keep your STIHL FS 111 or FS 111 RX running at peak performance — with knowledgeable staff across all our locations ready to support you throughout the season.

Genuine STIHL Parts
STIHL replacement parts and cutting heads 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.

Handle Style Guidance
Parallel Ag’s team can help you decide between the bike handle FS 111 and loop handle FS 111 RX before you buy.

Financing Available
Talk to Parallel Ag about financing options to get your new STIHL trimmer working for you.