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.
Walter, who played for 1. FC Kaiserslautern, scored an unmatched number of goals (336) in a significant amount of matches (321). He made his professional debut at age 18 as an outside left in a victory against SV Waldhof Mannheim.