The Mercedes Timing Chain Guide Rail Pin A1160522874 A1160520674 is a genuine SWAG product designed to ensure accurate timing chain tension in the engine. This pin is a crucial component in the timing chain system, providing stability and precise guidance for the chain to prevent any damage or slipping. With reference OE/OEM numbers A1160522874 A1160520674, this guide rail pin is specifically made for Mercedes vehicles, offering quality and reliable performance for your engine.