SPRING BREAKER COMPATIBLE WITH: MOTOR SAWS MODELS: 440 445 445E 450 450E HUSQVARNA 018352 Original code:544.1012.01 544101201 ALSO COMPATIBLE WITH: JONSERED MOTOR SAWS MODELS: CS 2245 CS 2245 S CS 2250 S Original code: 544.1012.01 544101201