The McCormick 3651707M91 is a genuine OEM oil pump gasket designed for a wide range of Massey Ferguson and McCormick agricultural and industrial machinery. This critical sealing component ensures proper oil pump function and prevents oil leaks, maintaining optimal engine lubrication and performance. Manufactured to original specifications, it provides a precise fit and reliable seal for various tractor models, including numerous series from both brands. Replace worn or damaged gaskets with this authentic part to ensure the integrity of your engine's oil system.