I've had good luck with B&S motors. The last one on my old Sears garden tractor lasted 14 years, the tractor died before the B&S motor did. The B&S on my snow blower is at least 7 years old and other then the belt pulley, the motor works fine. My current zero turn has a B&S motor, its two years and counting, I don't expect any trouble from it either. I expect that many failed B&S motors were due to poor maintenance. Gene