The Welger 0938984400 buffer is an original equipment manufacturer (OEM) part designed for various Welger AP series square balers. This genuine buffer provides essential impact absorption and vibration dampening, contributing to the longevity and reliable performance of the baler's mechanical components. With an outer diameter of 50 mm, an inner diameter of 18 mm, and a length of 40 mm, it is a direct replacement for worn or damaged buffers.