The Kuhn 9400971 is a genuine OEM tension spring designed for use in Kuhn GA4731, GA4731T, GA4731TH, GA4731TPL, GA4731TPO, and GA4731TP tedder models. This critical component ensures proper tension for the machine's operational mechanisms, contributing to efficient and reliable performance. With a length of 95 mm, a diameter of 11 mm, and a weight of 0.12 kg, this spring is built to Kuhn's specifications for durability and precise fit.