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Your BMW deserves good plugs.

This 4-pack of Bosch Double Platinum spark plugs is OEM-level stuff—fits 228i, 320i, 328i, 428i, 528i, X1, X3.

Thread diameter is 12mm, hex size 14, and they’re made in Germany.

OE numbers 0242145541, 0 242 145 541, 8165.

Direct replacement, one-year warranty.

New, not refurb’d.

5 out of 5