Product Overview The Thermostat Unit LR107288 is an OE-grade engine cooling component engineered for select for Land Rover vehicles equipped with 3.0L V6 supercharged petrol (AJ126) and 5.0L V8 supercharged petrol (AJ133) engines . This assembly integrates the thermostat with a temperature sensor, regulating coolant flow to maintain optimal engine operating temperature. LR117568 is the current replacement part, superseding LR107288 and multiple earlier numbers . Key Features