This part is listed by BMW as BMW part number 11121721879 and is described as Engine Rubber Seal. This small rubber grommet is used on the valve cover of some 4 cylinder engines (M42/M44) as well as some V8 engines (M62tu and S62).
Sold individually. Depending on your engine and uses, you will want to order more. The M42/M44 4 cylinder engines use 15 of these grommets (in total), while the 1999+ V8 engines use 6 for each engine.
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