AMCC Engine Coolant Thermostat Housing Assembly with Gasket Compatible with BMW X5 545i 550i 650i 745i 750i 760i GT xDrive M2 M3 M4 M5 M6 M8 X3 X4 X6 Replaces: 11537586885 [Vehicle Fitment-1]Compatible with BMW 545i/645Ci 2004-2005, 550i 2006-2016, 550i GT/750i xDrive/750Li xDrive 2010-2015, 550i GT xDrive 2010-2017, 550i xDrive 2011-2016, 650i 2006-2018, 650i Gran Coupe/650i xDrive Gran Coupe 2013-2019, 650i xDrive/M6 2012-2018, 745i/745Li 2002-2005, 750i/750Li 2006-2015, 760i 2004-2006, 760Li 2003-2015 [Vehicle Fitment-2]Compatible with BMW Alpina B6 Gran Coupe 2016, Alpina B6 xDrive Gran Coupe 2015-2019, Alpina B7 2007-2008, Alpina B7/B7L xDrive 2011-2015, M2 2019-2021, M3 2015-2018, M4 2015-2020, M5 2012-2021, M6 Gran Coupe 2014-2019, M760i/M760Li xDrive 2017-2021, M8/M8 Gran Coupe 2020, X3/X4 2020-2021, X5 2004-2021, X6 2008-2021 【Reference Number】 902-817, 11537586885, 11537502779, 902817 【Features】1PC Thermostat Housing Assembly---with Thermostat, Gasket and Seal; When installing, the old pads and screw holes need clean to prevent breakage and pipe breaks. Once installed, let the thermostat cycle once and check for leaks AMCC products are guaranteed for one year after sale，100% inspection and testing prior to shipment