Fits All 600 SDI, 600/800 E-tec’s and 800R engines. This systemreplaces the OEM crank seal/retainer plate to allow injectionof Iso-flex grease with the clutch installed/in place. Oncethe PTO Buddy is on, no further clutch removal is requiredto inject grease. Low pressure release valve to preventoverfilling. Grease and injector included.