McCulloch Models:EM 300S, EM 450S, EM250-14, 10E, 12E, 14E, 16E, MS1425, MS1630, MS1640, MS1630NT, MS1640NT, MCC3516,MCC3516F, MCC4516F, MCC4516FK, PM 380, PM 400, CHO026. This results in decreased cutting performance, lower chain life, and increased stress on engine and drive components.
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