<p>A quick hitch coupler (1) having an arrangement for releasably coupling a tool such as an excavator tool to the quick hitch coupler (1). The arrangement for releasably coupling the tool to the quick hitch coupler (1) has tool pin engaging members (4) on spaced apart portions of the main body (213) of the quick hitch coupler (1). One of the tool pin engaging members (4) has an associated latching member (7) movably mounted on the main body (213) of the quick hitch coupler (1) between a tool pin locking position and a tool pin releasing position. The latching member (7) has a lock (9) movably mounted on the latching member (7) for locking a tool pin onto the latching member quick hitch coupler (1) in normal use.</p>
