The LEMKEN 8690039 is an original equipment manufacturer (OEM) air reservoir membrane designed for various LEMKEN agricultural machines. This critical component ensures the proper function of the pneumatic system by maintaining pressure and preventing leaks in the air reservoir. Manufactured to LEMKEN's high standards, it guarantees durability and precise fitment, essential for reliable operation and longevity of your machinery's air braking or control systems. Using genuine LEMKEN parts like the 8690039 membrane helps maintain the integrity and performance of your equipment.