The six Tigers and nine Panzer IIIs of the 1st Company of the 501st were attached to 10 Panzer Division on 8 February for Operation Frühlingswind. After night marches, they joined KG Reimann near Bou Thadi on 13 February. The next day, they broke through the Faïd Pass and joined the Battle of Sidi Bou Zid. Tigers knocked out 20 M4 Sherman tanks of the US 1st Armored Division. On 26 February, the 501st was re-designated III./Panzer-Regiment 7 of 10 Panzer-Division at the end of the Battle of the Kasserine Pass. Each company received 15 Panzer IVs as reinforcement.