USED IN D-END IN MOTOR M2FA 355 WITH 2 POLES AND IN MOTORS WITH 4 OR MORE POLES: HXR 355 , 400M, HXV 355 . USED IN N-END IN MOTOR M2FA 355 WITH 2 POLES. Kindly note: This item may have a cast number printed on it. The cast number and the spare part code are usually not the same.