The Genuine Porsche Engine Valve Spring Retainer Lower (911) - 99710511790 is a high-quality replacement part for Porsche 911 vehicles. This product is designed to securely hold the valve spring in place, ensuring proper engine function and performance. It is made from durable materials to withstand the high temperatures and pressures within the engine. This valve spring retainer is an essential component in maintaining the valve train's integrity and preventing valve float. It is a genuine Porsche part, ensuring a perfect fit and reliable operation. This product does not contain any newline characters and can be directly used as input in another API call.