43715D Manifold Nut Description This 43715D nut is designed for manifold installations on compatible tractors. It provides a secure fastening point to help maintain proper alignment and connection of manifold components during normal operation and maintenance. Key benefits Exact fit for listed tractor models to simplify replacement and reduce downtime. Secure fastening to help maintain sealing and alignment of manifold parts. Simple direct replacement that works with existing manifold hardware and threads. Identifiable by part number 43715D for accurate ordering and inventory. Compatibility Fits International Tractor models H, M, W4, W6, 300, 450, 986, 1066. Function and practical details Function: nut for fastening manifold components. Application: Installed where additional nut height is needed to engage threads and secure manifold connections. Fitment: Matches the original mounting requirements on the compatible tractor models listed above. Typical use scenarios Routine engine maintenance: a worn or corroded manifold nut during scheduled service to restore secure clamping of the manifold. and restoration: Use as a direct replacement when rebuilding older tractor engines to ensure correct manifold assembly. Field service: Carry as a spare part for quick repairs when a manifold fastener needs replacement during farm work. Part identification Part number 43715D, nut for manifold applications on the compatible tractor models listed.