2013 New model brand power 5.5hp 1, 22" (56cm) 2, Two stage-163CC ... : 2 years 4, Approval: GS, CE, EPA 2013 New model brand power 5.5hp 22" (56cm) Two stage-163CCModel no.: ST2551EHZD ... : 63PCS 40'GP: 129PCS 40'HQ: 129PCS 2013 New model brand power 5.5hp