Manufacturers part number (s) ARP 204-4103
ARP is the go-to manufacturer in the automotive industry for engine fasteners. Whether it be OEM replacement parts or custom hardware, their dedication to consistent top notch quality has made them a favorite in the racing world. These ARP head studs for 06A 1.8T engines are made from premium grade 8740 alloy steel which is rated far superior to many aircraft quality competitors. The studs are heat treated to 200,000 psi then thread rolled afterward, giving them twenty times better fatigue strength over studs threaded prior to treatment (a common practice with lesser quality studs). These high-quality head studs will ensure your headgasket stays firmly planted under even the most extreme boost conditions. These parts are manufactured in the USA and are 100% re-usable.
The 06A 1.8T engine is a tricky one to make studs for because of the very tight access to the nuts. ARP has finally launched a stud kit in addition to their bolt kit for this engine. The studs offer easier assembly and are only loaded with minimum torsion when they are tightened. This makes them even better in that they achieve the required clamping force more reliably. The downside is they do cost a bit more than the equivalent arp bolt kit.
Includes ARP moly assembly lube
Does not include installation/removal tool
Fits all 2000+ 1.8T engines with 10mm threaded bolts