Looking for a way to increase the strength and reliability of your 6.7 Dodge Cummins engine? Then look no further than the ARP 147-2503 Balancer Bolt Kit. This kit includes four (M12 x 1.25) 8740 Pro Series balancer bolts, each with a tensile strength of 200,000 PSI. That means they're significantly stronger than stock bolts and can withstand a lot more abuse. So whether you're putting your Cummins engine under heavy duty use or just looking for some extra peace of mind, the ARP 147-2503 Balancer Bolt Kit is an excellent choice.