Quick view Touge Factory RWD K-Swap K24 7-Rib EP3 Idler Accessory Belt Using EP3 rwd idler setup you need to run one of these 7 rib accessory belts.If you have the larger JDM Crank pulley, you will need the 1335mm length.If you have the smaller USDM crank pulley, you... As low as $32.95 Choose Options