This hydraulic quick coupler socket is the female half of a break-away coupling used in the tractor's hydraulic system. It connects the implement hose to the tractor's pressure or return line, allowing tools to be attached and detached without fluid loss. The socket houses the locking mechanism that secures the male nipple and the internal poppet valve that seals when uncoupled. A worn or leaking socket causes pressure drop at the implement and fluid loss at the connection point. As an original AGCO component, the internal seal geometry and thread form match the housing on the host tractor, ensuring the poppet valve seats correctly and the locking balls engage fully. On installation, clean the mating face and verify the locking collar moves freely before pressurizing the circuit.