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Alternators that come loose are a pain, so that’s why ARP came up with these super tough bolts (your choice of chrome moly steel or polished stainless (ARP 300 – both rated 170,000 psi). The stainless has the added advantage of being rust and corrosion resistant.
Alternator Stud Kit Strange as it may seem, there have been many races lost in oval track, off-road and endurance competition due to the OEM alternator stud failing and the subsequent loss of electrical power. To prevent this from ever happening, conscientious engine builders rely on ARP’s “bulletproof ” alternator studs. They’re made from a premium grade 8740 chrome moly steel alloy and heat-treated to a nominal 200,000 psi tensile strength. They are very rigid and won’t bend under the stress of competition, eliminating problems with alternator pulley alignment. Here’s more reliable “insurance” from the innovators at ARP. Available in 5.000˝ and 5.250˝ lengths. Includes a 12-point nut and flat washer.
