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This ARP 12-point nut kit includes M11 x 1.25 (M13 WR) nuts supplied as a hardware kit for engine and component assembly. The 12-point configuration allows usage with standard 12-point sockets where required, and the kit provides metric M11 x 1.25 sizing aimed at replacement or assembly tasks that call for these specific nuts in engine or accessory installations.
ARP M11 x 1.25 (M13 WR) 12pt Nut Kit
