The John Deere RE201108 is a genuine OEM hydraulic oil cooler designed to maintain optimal operating temperatures within the hydraulic systems of various John Deere agricultural and construction machinery. This essential component ensures efficient heat dissipation, preventing overheating and extending the lifespan of hydraulic fluids and components. It is compatible with a wide range of John Deere 6R series tractors, S-series combines, R-series sprayers, and 8000 series forage harvesters, providing reliable performance and direct fitment.