coil was decent quality but would not run in my redmax backpak blower. it was the right part # acording to the web sight . i tryed one from another machine and machine ran fine,put the new one in this machine and it would not start chevked for spark and it was good i suspect this coil does not time up right with flywheel.contacted seller they asked for the blowewrs specs then offered me a partial refund told them no as it would not work for this blower as they said it should and was useless .