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 8165661 is a double-acting industrial component featuring a 125 mm piston diameter, a 100 mm stroke, and an M27x2 piston rod thread conforming to ISO 15552. Built with a piston, piston rod, and profile barrel design, it operates within a pressure range of 0.02 MPa to 1 MPa and utilizes self-adjusting pneumatic end-position cushioning with a 45 mm cushioning length. This unit provides position sensing via proximity switch, offers a theoretical retracting force of 6881 N at 6 bar, and functions at ambient temperatures between -20 °C and 80 °C using compressed air as per ISO 8573-1:2010 [7:4:4]. 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 8165661. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.