Gates 84-95 BMW 3 Series / 92-95 525i / 95-99 M3 / 00 Z3 Thermostat (Seal Included)Gates OE Type Thermostats are engineered to provide precise temperature control and leak free, OEM equivalent fit every time. Quality controlled factory calibration assures accuracy of opening and closing, regardless of pressure changes OEM fit, function and design for precise engine cooling Jiggle pins for air venting, seals and gaskets make these thermostats equivalent to the original equipment parts This Part Fits: Year Make Model Submodel 1991