The Mengele 40775 counter knife is a genuine OEM replacement part designed for Mengele SH series forage harvesters, including models SH 25, SH 30, SH 40, and SH 50. This essential component ensures optimal cutting efficiency and durability in demanding agricultural applications. With a length of 200 mm, width of 100 mm, and thickness of 10 mm, it provides a precise fit and reliable performance for maintaining the sharp cutting action of your machinery.