Confirm the exact configuration
Use the manufacturer part number and model code—not appearance alone. Connection, size, material, voltage, pressure, seal, and control options can differ within the same product family.

Festo
The Festo 543966 is a double-acting industrial component featuring a 16 mm piston diameter, an 80 mm stroke, and a yoke drive unit operating mode with an integrated ball bearing cage guide. It operates on compressed air within a pressure range of 1 bar to 8 bar at speeds up to 0.8 m/s, utilizing elastic cushioning rings at both ends and position sensing via a proximity switch. This unit functions in any mounting position within an ambient temperature range of 0 °C to 60 °C, demonstrating ISO 14644-1 Class 7 cleanroom suitability and a corrosion resistance class of CRC 0. Submit the exact part number, quantity, and application requirements to receive a formal quotation.
Industrial and obsolete parts are priced per enquiry: the final price depends on available stock, condition, quantity, and your delivery destination, so a fixed list price would be misleading. Request a quote and we confirm current pricing, lead time, and sourcing options — including hard-to-find and discontinued Festo references — within one business day.
For a faster response, include quantity, condition, and delivery destination.
Verified configuration
Engineering context
Use the manufacturer part number and model code—not appearance alone. Connection, size, material, voltage, pressure, seal, and control options can differ within the same product family.
Provide quantity, delivery country and ZIP/postal code, required condition, target date, and photographs of the existing nameplate when available.
Our sourcing response is prepared against Festo 543966. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.