The STIHL® WSA 40 is a fully automatic, battery‑powered pressurized water tank designed to provide a consistent water supply for STIHL cut‑off machines. Eliminating the need for manual pumping, it delivers steady, adjustable pressure for dust suppression during cutting applications. Compact and easy to transport, this unit—identified as SA090118511US—is ideal for construction, masonry, and concrete cutting jobs where reliable water delivery is essential.

Key Features

• Battery‑powered operation eliminates manual pumping
• 2.6‑gallon water tank provides extended cutting support
• Adjustable pressure range from 22 to 36 PSI for precise water flow
• Constant Power technology maintains steady output throughout the charge
• Lightweight, portable design for easy jobsite transport
• Designed for use with STIHL TS and TSA cut‑off machines
• Durable construction built for jobsite conditions
• Model number SA090118511US included for accurate identification

Battery & Runtime

• Includes STIHL® AS 2 lithium‑ion battery and charger
• Up to 12 tank refills per charge, depending on operating conditions
• Automatic shut‑off helps conserve battery life when not in use

Why It’s a Smart Pick

The STIHL® WSA 40 is a practical solution for professionals who need consistent water delivery without the hassle of manual pumping. Its battery‑powered design, adjustable pressure, and compact size make it an ideal companion for STIHL cut‑off machines in dust‑control applications. For crews focused on efficiency, safety, and reliability, the WSA 40 delivers dependable STIHL performance on the jobsite.