You are buying one peace!! This is a direct fit engine oil line brass elbow for the inlet and outlet to the rotary gear for your seadoo sea doo engine ! 787 800 717 720 951 engine !! The aluminum ones on the engine sometime get broken! Theay are so brittle , theay break right off!!you can still save your engine!!Drill it out and this is a direct replacement!!!Have u ever had a engine oil line inlet on the engine break off on you ?? This is your fix!! This is a strong brass direct fit engine oil line elbow fits directly to your inlet and outlet for your oil lines connected to your engine!!jet ski waverunners tooooo!!!