The Case-ih 87666321 is a genuine OEM valve spring, essential for maintaining optimal engine performance and valve train integrity in a wide range of Case IH, New Holland, Steyr, and Case agricultural and construction equipment. This critical component ensures precise valve operation, contributing to engine efficiency and reliability. Manufactured to exact specifications, the spring weighs approximately 0.054 kg and has a length of 95.0 mm, guaranteeing a perfect fit and long-lasting durability.