The product is a genuine OEM right side camshaft adjuster cover switch for a 90-95 Mercedes R129 SL500 E420. Made by Mercedes Benz in Germany, it comes with a 3-month manufacturer warranty. The part numbers associated with this product are A1040500177, R1190160706, and 1040500177. It is designed to fit specific Mercedes models and is a genuine OE OEM original part, ensuring quality and compatibility with the vehicle. Ideal for those looking to replace a worn-out or damaged camshaft adjuster cover switch on their Mercedes.