The JCB 90420260 is a genuine OEM rear window bulb seal designed for a wide range of JCB backhoe loaders, including the popular 3CX, 4CX, and 5CX series. This essential sealing component ensures a tight, weather-resistant fit for the rear window, protecting the cabin from elements and reducing noise. Manufactured to JCB's precise specifications, it guarantees optimal performance and durability for your agricultural and construction machinery.