The Welger 1103330235 tension shaft is a genuine OEM replacement part designed for various Welger AP series square balers. This critical component ensures proper tensioning within the baler mechanism, contributing to reliable operation and consistent bale formation. Measuring 175mm in length and 20mm in diameter, it is compatible with models including AP41, AP42, AP45, AP50, AP51, AP52, AP53, AP61, AP63, AP71, AP73, AP83, AP500, AP600, AP700, and AP800.