6 x BMW Genuine Engine Cylinder Head Spark Plug Tube 528i 528xi 535i 535xi 535xi X5 3.0si X6 35iX 128i 135i M Coup&eacute; X3 3.0i X3 3.0si Z4 3.0i Z4 3.0si Z4 3.0si 128i 135i Z4 30i Z4 35i Z4 35is 323i 328i 328xi 335i 335xi 323i 328i 328xi 335i 335xi 328i 328xi 328i 328xi 328i 328xi 335i 335xi 328i 328xi 335is 32 BMW Genuine Engine Cylinder Head Spark Plug Tube This part is used in Cylinder head cover -- Manufacturer Warranty: 24000 miles or 2 years Please see Product Description below for vehicle compatibility