Sierra 23-2803 Rotor For Westerbeke Sierra replacement rotor for Westerbeke generators. Interchangeable with Westerbeke 43050 Application Westerbeke 10.0 BEG60HZ8.0 BEG50HZ 10.0 SBEG60HZ8.0 SBEG50HZ 12.5 BEG60HZ10.0 BEG50HZ 12.5 SBEG60HZ10.0 SBEG50HZ 14.0 SBEG60HZ11.6 SBEG50HZ 15.0 BEG60HZ12.0 BEG50HZ 4.5 BCGB60HZ3.75 BCGB50HZ 4.5 BCGTC60HZ3.75 BCGB50HZ 5.0 BCG60HZ4.2 BCG50HZ 5.0 BCGA60HZ5.2 BCGA50HZ 5.0 SBCG60HZ4.0 SBCG50HZ 6.5 SBCG60HZ5.4 SBCG50HZ 7.0 BCGB60HZ6.0 BCGB50HZ 7.0 BCGC60HZ5.9 BCGC5