Description This is a Set of ARP Head Studs For your 17-23 GM 6.6L Duramax Upgrade Your Truck Today! Part# 230-4301 Application: 2017-2023 GM 6.6L Duramax Condition: New Brand: ARP Looking for Duramax head studs for a newer truck? See the ARP Head Studs for 17-23 GM 6.6L Duramax for a compatible upgrade option.