The John Deere Z39681 Spacer Tube is an authentic OEM component designed for precise fit and reliable performance in various John Deere agricultural machinery. This genuine spacer tube ensures proper spacing and alignment within critical assemblies, contributing to the longevity and efficient operation of your equipment. It is compatible with a wide range of John Deere combines, forage harvesters, cotton pickers, self-propelled sprayers, and windrowers, including models from the 9000, S-Series, 7000, 8000, and 4000 series.