Abstract: A quick release hitch for attaching an implement to the arm of a hydraulic excavator comprises a pair of pivotted links, each link having a jaw for engaging a pin on the implement; the links can be jack-knifed to engage or disengage the implement; and locking structures are provided for locking the links together when the implement has been engaged. Preferably, the locking structure is a rotatable cam and/or over-center mechanism.