BMW (77-95) Belt Adjusting Nut Toothed for Alternator ac belt adjustment e28 e30 Review
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BMW (77-95) Belt Adjusting Nut Toothed for Alternator ac belt adjustment e28 e30
Adjusting Nut Toothed Nut for Adjusting Alternator Belt, Power Steering Belt and A/C Belt
BMW part# 12 31 7 677 914, check fit below.
Genuine BMW part, recently made: not been lying around.