collar nut/threaded ring 31321129196 M55X1,5 for front shocks is now available from extra-classics in Germany for EURO 15.90/pc plus shipping, NOT genuine BMW part https://www.extra-classics.de/Schrau...mutter/EC53165 Fits E34, E32, E31 850i csi 840i, check with ETK. Genuine part costs in USA: MSRP: $ 50.39 / pc
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