Fitment: Carburetor compatible with following Arctic Cat 400 4x4 models 2008 Arctic Cat 400 4X4 2008 Arctic Cat 400 4x4 Automatic 2008 Arctic Cat 400 4x4 TRV Automatic 2007 Arctic Cat 400 4X4 2007 Arctic Cat 400 4x4 Automatic 2007 Arctic Cat 400 4x4 TRV Automatic 2006 Arctic Cat 400 4X4 2006 Arctic Cat 400 4x4 Automatic 2006 Arctic Cat 400 4x4 LE Automatic 2006 Arctic Cat 400 4x4 M4 Automatic 2006 Arctic Cat 400 4x4 TBX Automatic 2006 Arctic Cat 400 4x4 TRV Automatic 2006 Arctic Cat 400 4x4 VP 2006 Arctic Cat 400 4x4 VP Automatic 2005 Arctic Cat 400 4X4 2005 Arctic Cat 400 4x4 Automatic 2005 Arctic Cat 400 4x4 LE Automatic 2005 Arctic Cat 400 4x4 TBX Automatic 2005 Arctic Cat 400 4x4 VP 2005 Arctic Cat 400 4x4 VP Automatic Replaces Part Number: 0470-537 0470-667 Specification: Inner Diameter (intake side): 33mm(1.30") Outer Diameter (intake side): 40mm(1.57") Inner Diameter (air filter side): 52mm(2.05") Outer Diameter (air filter side): 55mm(2.17") Package Includes: 1 x carburetor assembly Note: Please compare the pictures and compatibility before buying to confirm whether it is suitable for your model, thanks for your understanding. Ombialo is committed to providing you with better products and services.