OE Part Numbers 64219310349 (primary), 64114271156, 64119119164, 6411911916404, 6411931034901. 6 Series (F12) 640i (2013–2018), 650i (2013–2018), M6 (2012–2018), ALPINA B6 (2015–2016), ALPINA B6 Gran Coupe (2016) Fits F12’s coolant circulation setup; prevents antifreeze leaks.
