The Case IH 307861A1 is a genuine OEM cooler hose designed for various Case IH agricultural machinery, including MXM, MXU, and Puma series tractors. This essential component ensures proper fluid transfer within the cooling system, maintaining engine temperature and preventing overheating. Manufactured to original equipment specifications, it provides reliable performance and a precise fit for demanding agricultural applications. Replaces New Holland part numbers 87693631 and 87693632.