ARP 100-3222 Water Pump Pulley Stud Kit for 5/16-24 X 2.500?. 8740. black oxide. 12pt (fits 1.250? fan spacer) ymm_45 The studs are manufactured from

The studs are manufactured from a proprietary alloy developed by ARP (Stainless 300) and are impervious to the rust and corrosion that plagues ordinary fasteners

it helps eliminate main cap walk and fretting while protecting the threads in the engine block

Specifications Socket Size(s) 12mm 12pt UHL 100mm Thread Length 26mm Grip Length 74mm Thread Diameter-Spacing M10 x 1

ECE type approval is only valid for cars equipped with otto/gasoline particulate filter

which is then replaced by the Akrapovič Evolution Line system

ARP 100-3222 Water Pump Pulley Stud Kit for 5/16-24 X 2.500?. 8740. black oxide. 12pt (fits 1.250? fan spacer) ymm_45 The studs are manufactured fromSpecifications Socket Size(s) 3 8 12pt, 1 8 Allen