Feature: 1. Applicable Model: ATV thermostat, replacement for GRIZZLY 660 YFM660 2002‑2005; Replacement for GRIZZLY 660 YFM66F HUNTER 2007‑2008 etc. 2. Temperature Regulating: Thermostat is an automatic temperature regulating device, getting the engine to heat up to its optimum temperature as quickly as possible, and keeping the engine at its optimum temperature. 3. Durable Construction: ATV replacement thermostat is made of superior quality metal material, strong rust resistance, rugged and durable. 4. Original Standard Design: This replacement thermostat is manufactured to meet or exceed the OEM specifications. 5. Stable Performance: Engineered for long life and smooth performance. Easy to install, it's better to be installed by professionals(NO instructions included). Specification: Item Type: Thermostat Material: Metal Fitment: Replacement for GRIZZLY 660 YFM660 2002-2005 Replacement for GRIZZLY 660 YFM660 HUNTER EDITION 2002 Replacement for GRIZZLY 660 YFM660 METALLIC SILVER 2002 Replacement for GRIZZLY 660 4X4 METALLIC TITANIUM YFM660 2003 Replacement for GRIZZLY 660 YFM660F REAL-TREE HARDWOOD HUNTER 2003 Replacement for GRIZZLY 660 YFM660 WETLANDS HUNTER EDITION 2003 Replacement for GRIZZLY 660 YFM660 AUTO 4X4 WETLAND 2004 Replacement for GRIZZLY 660 YFM660 HARDWOODS HUNTER CAMO 200 Replacement for GRIZZLY 660 YFM66F SE 2005 Replacement for GRIZZLY 660 YFM66F HUNTER 2005 Replacement for GRIZZLY 660 YFM66F HUNTER WETLAND 2005 Replacement for GRIZZLY 660 YFM66F 2006 Replacement for GRIZZLY 660 YFM66F HUNTER HARDWOODS 2006 Replacement for GRIZZLY 660 YFM66F DUCKS UNLIMITED EDITION 2006 Replacement for GRIZZLY 660 YFM66F HUNTER HARDWOODS HD CAMO 2006 Replacement for GRIZZLY 660 YFM660 2007-2008 Replacement for GRIZZLY 660 YFM66F HUNTER 2007-2008. Package List: 1 x Thermostat