1、Fitment: Fit for 540i 1997‑2003; Fit for 740i 1997‑1998; Fit for 740iL 1996‑1999; Fit for X5 2000‑2003; Replacement for Land Rover Range Rover HSE Sport Utility 4 Door 2003-2005. 2、Reference OE Number: 2.547.01, 11531436386, PEL000060 are the reference part numbers. Please double check the part number of your item to ensure perfect fit. 3、Main Purpose: Engine thermostat can improve temperature regulation and control to keep the engine at its optimum temperature to help the engine operate more efficiently. 4、Sturdy Structure: Engine coolant thermostat housing is made of premium metal material, impact resistant, wearproof, sturdy and durable, not easy to crack. 5、Direct Replacement: The manufacturing strictly follows the factory quality control, cooling thermostat housing is a direct replacement for the old or broken one.