This water pump cover O-ring gasket is a direct replacement for select Polaris Ranger and Sportsman twin-cylinder ATV and UTV models and installs in the machined groove of the aluminum water pump cover. A worn or flattened O-ring can allow coolant leaks at the pump cover, leading to cooling system issues if not addressed. This molded O-ring is manufactured to OEM dimensional specifications to ensure proper sealing and installs directly with no modifications required when used on the compatible models listed below. Sold individually; always inspect the water pump cover and groove condition during installation. Fits the following models and more: 2004-05 Sportsman 600 2004-08 Sportsman 700 (All Models) 2005-14 Sportsman 800 (All Models) 2005-09 Ranger 700 (All Models) 2010-16 Ranger 800 (All Models). Fits the following Polaris models: 2004–2005 Sportsman 600 2004–2008 Sportsman 700 (all models) 2005–2014 Sportsman 800 (all models) 2005–2009 Ranger 700 (all models) 2010–2016 Ranger 800 (all models) Replaces Polaris part numbers: 5812571 5812508