The Kramp 30630 valve spring is a high-quality aftermarket replacement component designed for optimal valve operation in various agricultural and industrial machinery. This spring measures 53mm in length, with an outer diameter of 25mm, an inner diameter of 18mm, and a wire diameter of 3.5mm. It serves as a reliable equivalent for several OEM part numbers, including Case IH 3136279R1, Massey Ferguson 3637171M1, and Perkins 3637171M1, 3637171M2, and 3637171M3, ensuring compatibility and durable performance.