Description: It is connected to various engine drive components through a belt drive system and helps to ensure that these components receive power from the rotating crankshaft to perform important functions. This idler pulley fits for Infiniti Ex35/37 when using a short water pump. It can change the bending direction of the belt, prevent the belt from shaking, making the belt better contact with another pulley and not fall off. Please confirm your car model of the part before purchasing to avoid buying the wrong one. This is a non-OEM product, accessory only! Specification: Color: Black Material: Metal Size: 3.4x7.5cm / 1.34''x2.95''(H*D) Thread Size: M10x1.5 OE Number: 11925-JK21A Fitment: for Infiniti Ex35/37 (J50) 2008-2014 for Infiniti Fx35/50 (S51) 2008-2014 for Infiniti Fx35/Fx37/Fx50 (S51) 2008-2014 for Infiniti G37 (Cv36) 2007-2013 for Infiniti M (Y51) 2010- for Infiniti M35/45 (Y50) 2004-2010 for Infiniti M37/56 (Y51) 2010- for Nissan 350Z (Z33) 2002-2008 for Nissan 370Z Z34 2008- for Nissan Fairlady Z Z33 2002-2008 for Nissan Fuga Y50 2004-2009 for Nissan Fuga Y51 2009- for Nissan G35/37/25 Sedan V36 2006-2015 for Nissan G37 Convertible Hv36 2009-2013 for Nissan Gt-R R35 2007- for Nissan Skyline Crossover (J50) 2009- for Nissan Skyline V36 2006-2014 Package Included:1 x Accessory Drive Belt Idler Pulley