He played together with his brother, Fritz Walter, at the club 1. FC Kaiserslautern. They also played together for the Germany national football team in the 1954 FIFA World Cup. Walter scored four goals in the tournament as West Germany won their first ever World Cup title. In total, Walter earned 20 caps and scored 10 goals for Germany. For his club 1. FC Kaiserslautern he scored an unequaled 336 goals in 321 league and cup matches. Walter debuted in the first team at the age of 18 in 1942 as an outside left in a 7–1 rout of SV Waldhof Mannheim.