The FAAC 4350065 Piston Assembly is a precision-engineered replacement component for FAAC 402 hydraulic barrier systems. Designed to ensure smooth and reliable operation, this piston assembly maintains optimal hydraulic pressure and efficient movement of the barrier arm. Manufactured with durable materials and high-quality seals, it provides long-lasting performance even in high-traffic commercial and industrial environments. Compatible with FAAC 402 systems, this assembly is essential for maintenance, repairs, or restoring full functionality of your barrier operator.