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This ARP head stud (single) is specified for BMW S54 engines as an M11‑1.5 x 7/16‑20 head stud, intended for use where a single quality replacement stud is required. ARP hardware is supplied to meet the dimensional and threading needs of S54 cylinder head applications and is intended for professional engine assembly or repair where original head stud specifications must be maintained.
ARP BMW S54 M11-1.5 x 7/16-20 Head Stud
