This hydraulic quick coupler socket is the female half of a break-away coupling used in the tractor's rear or mid-mount hydraulic circuit. It connects the implement hose's male tip to the tractor's pressure or return line, allowing tool-free attachment and detachment of hydraulic implements. The socket houses the locking balls and the spring-loaded poppet that seals the circuit when uncoupled. A worn socket can fail to latch the male tip securely, causing the implement to drop or the coupler to leak under pressure. This original AGCO component is machined to the same internal profile and thread specification as the original assembly, ensuring the locking mechanism engages fully and the O-ring seal seats correctly against the male tip. When replacing, inspect the O-ring inside the socket and replace it if hardened or nicked.