The most powerful clearing saw in the AP Battery System, the FSA 400 offers versatility with a wide range of optional cutting attachments.
The FSA 400 K offers professionals a versatile option for trimming and clearing. As the most powerful clearing saw in the AP Battery System featuring power comparable to the gas-powered FS 361 C-EM, this clearing saw is built for tough jobs. Compatibility with a wide range of cutting options means pros can tackle work in a variety of applications. It is available in a short-shaft version for denser, tougher growth. Besides being fully capable of getting the job done right, the FSA 400 K is also designed for user comfort with an ergonomic control handle and anti-vibration system.
Features may include:
Hanging Loop
Hang your cordless trimmer securely on a wall to save space using the loop in the handle housing.
High-Tech Polymer Housing
Housings are lightweight, withstand greater impact, and are corrosion-resistant.
IPX4 RATING
This tool is IPX4-rated weather-resistant construction and has been designed and tested for splash water protection.
Retaining Latch
All STIHL battery-powered products feature a retaining latch that is designed to prevent the unit from unintentional starts when the battery is inserted.
Rubberized Soft-Touch Handle
Soft rubber texture is both easy to grip and makes the product comfortable to hold for extended periods.
Photos
Highlights
Pinedale, Wyoming
2026
STIHL
Trimmers and Brushcutters FSA 400 K
Available
Specifications
2026
STIHL
Trimmers and Brushcutters
FSA 400 K
General
Recommended: AP 500 S
Max./Min battery working time AP 500 S with metal blade: 50 min/25 min
Rated voltage: 36 V | Max. voltage: 40 V | Power consumption: 2.60 kW | Power: 2 kW