The GRANIT 52972 valve spring is a high-quality replacement component designed for various agricultural machinery applications. This genuine GRANIT part ensures precise valve operation, contributing to engine efficiency and longevity. With an outer diameter of 30 mm, an inner diameter of 20.5 mm, a wire diameter of 4.7 mm, and a free length of 48 mm, it meets stringent specifications for reliable performance. It is a direct equivalent to Massey Ferguson 3637153M1 and Perkins 2314644, suitable for models such as Massey Ferguson 135, 148, 230, 240, 250, and 550.