The Gates Racing Replacement Timing Belt Component Kit is complete set of the components needed for replacing the timing belt, water pump and pulleys. Gates has assembled a kit including the pieces that are commonly replaced during routine maintenance or when doing an engine swap: Four pulleys (A, B, C x 2), belt tensioner (D), water pump (E), and a Gates racing version timing belt (F). Gates manufacturers all of the included components to OEM quality standards, so you know they will perform for a long time.