BMW Genuine Thermostat Housing for 525i 320i 323i 325i 325is 328i M3 M3 3.2 Z3 2.8 Z3 M3.2 E34 E36 Z3 Product Description: BMW Genuine Radiator Coolant Thermostat Housing Quantity within package: 1 Note: Include 11 53 1 740 437 gasket (Qty: 1) Please see Product Description below for vehicle compatibility. Manufacturer Warranty: 24000 miles or 2 years