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 3659491 is a double-acting industrial component featuring a 50 mm piston diameter, a 20 mm stroke, and an M16x1.5 external piston rod thread conforming to ISO 15552. Built with a piston, piston rod, and profile barrel structural design, this unit operates at pressures from 0.04 MPa to 1.2 MPa utilizing compressed air per ISO 8573-1:2010 [7:4:4] with self-adjusting pneumatic end-position cushioning. It delivers a theoretical retracting force of 990 N at 6 bar across an ambient temperature range of -20 °C to 80 °C while accommodating position sensing via proximity switch. Submit the exact part number, quantity, and application requirements to receive a quote.
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 3659491. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.