400336 / 400336 - Application Notes Complete Underdrive Pulley Set Applications: 2003-2006 Nissan 350Z 3.5L 2003-2006 Infiniti G35 Sedan 3.5L 2003-2007 Infiniti G35 Coupe 3.5L 2003-2007.5 Infiniti FX35 3.5L (Single Throttle Body) Kit Includes 3 Pulleys: - Crank - Alternator - Idler OEM Pulley Weight: 7.56lbs STILLEN Pulley Weight: 1.91lbs Approximate Underdrive: 20%