?? Belt Application: Drive Belt; Belt Size: 1-1/2″ x 43-7/8″?? Replaces OEM: 422280651,422280654,417300391,422280652,417300253,417300383,417300288,417300166,XS803, XTX5034,5025,49C4266,XS821?? Fits Models: /Sport 1000/Trail 1000/X3; Freeride 800R/Summit 800R/Expedition 600/MXZ 600?? Durability: belts are designed for superior fit, strength, performance, and durability?? Deep double cog style reduces clutch heatFit for: models: * 2016 – 2018 800 * 2016 – 2018 976cc * 2017 X3 900 models: Expedition 1200 4-tec 4 stroke ES/R 156″ 2010 Expedition 1200 LE 4-tec 4 stroke REV-XU ES/R 154″ 2013 to 2017 Expedition 1200 LE 4-tec REV-XU ES/R 154″ 2018 Expedition 1200 SE 4-tec 4 stroke ES/R 154″ 2012 Expedition 1200 SE 4-tec 4 stroke REV-XU ES/R 154″ 2013 to 2017 Expedition 1200 SE 4-tec REV-XU ES/R 154″ 2018 Expedition 600 LE e-tec REV-XU ES/R 154″ 2011 to 2018 Expedition 600 SDI REV-XU ES/R 156″ 2010 Expedition 600 SE e-tec REV-XU ES/R 154″ 2011 to 2018 Expedition 600 SE SDI REV-XU ES