HOOAI New Zama Carburetor C1M-EL37B with Primer Bulb and Gasket for Husqvarna 445E 450E 450 II Chainsaw CCA15 506450401 Direct Replacement! Bolt-on & Go parts! 3 Months warranty from our store! We are professional auto parts manufacturer and seller! Please compare your old part with the pictures if you are not sure if it will fit.