ARP Single & Twin Cam Nissan RB Timing Belt Hi Tensile Fastener KitWhen it comes to running high horsepower RB engines at high RPM as most of them do it's essential your timing belt components are of extreme high quality. We have produced a timing belt idler & tensioner fastener kit using only the best ARP custom hardware. If a bolt or stud let's go due to porous material or rust that could cost you an entire engine as well as a turbocharger. This kit includes the following components: ARP Bolt ARP Stud ARP Washers