The RE198074 is a genuine John Deere temperature switch designed to provide precise temperature readings for optimal engine and system performance. This OEM component is crucial for monitoring fluid temperatures in a range of John Deere agricultural and construction machinery, including tractors, combines, and sprayers. Manufactured to John Deere's rigorous standards, it ensures reliable operation and direct fitment, helping to prevent overheating and maintain operational efficiency. Always refer to your equipment's parts catalog for specific application details.