544405901 Husqvarna Piston Ring

544405901 Husqvarna Piston Ring.  544407001 has been superseded to 544405901.   No original manufacturer’s packaging is available.  Fits Husqvarna 435, 435E, 440E Chainsaw.  Also fits Husqvarna 435 (2008-05); 435 (2008-05); 435 (2009-02); 435 (2009-02); 435 – 435E (2011-05); 435 e (2008-05); 435 e (2008-05); 435 E (2009-02); 435 E (2009-02); 440 e (2008-05); 440 e (2008-05); 440 E (2009-02); 440 E (2009-02); 440 E (2011-05).