AMCC Upgrade Aluminium Thermostat Housing Assembly Compatible with BMW M54 M52 E46 E39 1999-2006 323 325 328 330 525 528 530 728Li 730Li X3 Z3 Z4 X5 Replaces: 11531437040,11537509227 Package includes:1*Thermostats Housing, 1*Sensor, 1*Gasket Reference Number:11537509227 11531437040 11531436823 11530139877 33934 11534509763 324-58407 902-813 Z63001, 1430825, 14602, 1 53 0 139 877、11 53 7 509 227、11 53 1 437 040、11 53 1 436 823、432697D、4326.97D、11 53 4 509 763、256101、TM1397 SK902813 1436823 1437040 7509227 1153013987705 1153143682300 1153143704010 1153750922710 V20-99-1258-1 V209912581 467185 [High-Quality Construction] Our Aluminum Thermostat Housing Assembly is made from premium materials, ensuring superior performance and durability. Its high tolerance design guarantees a precise fit, allowing you to effortlessly repair leaking thermostat housings and prevent engine overheating caused by thermostat failure. Thermostat Opening Temperature: 206.6 Deg. F / 97 °C [Reliable Performance] With its high sealing capability and exceptional reliability, our thermostat housing assembly provides long-lasting functionality. You can trust it to maintain optimal engine temperature and prevent any potential issues associated with thermostat malfunction. Say goodbye to overheating problems and enjoy a smooth driving experience AMCC products are guaranteed for one year after sale，100% inspection and testing prior to shipment