USED IN MOTORS WITH 4 OR MORE POLES: HXUR 56_, HXR 280, HXV 280, M2BA 280 (TO S/N 3316000), M2JA 280 AND M2KA 280. CASTING CODE: 66792 DATA: INNER DIAM=75MM OUTER DIAM=280MM PLASTIC NB: THERE MIGHT BE CRACKS AT THE FIXING BOLTS OF THE FAN DUE TO THE MECHANICAL CONSTRUCTION. HOWEVER THE CRACKS DO NOT AFFECT THE FAN OPERATION. 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.