Direct OEM fit Yamaha Raptor 660 YFM660 YFM660R 01-05 Based on buyer's feedback, we have enhanced our product from three to four for a more perfect fit! Thickness: 4.5mm,Layers: 3ply Resistant to UV, water, ozone and oxygen Flexible and can handle extreme temperature from -60°C to +260°C or -76°F to + 504°F * Working temperature: -65F ~ 500F degrees * Working Pressure: 0.3 to 0.9Mpa * Bursting Pressure: 245 PSI * Thickness: 4.5mm, 3 ply * Size tolerance: +/-0.5mm * High quality silicone hose kit Application: 01-05 Yamaha Raptor 660