Replaces Westerbeke #33112 Fits 6.5 TWG(60Hz)/4.9 TWG(50Hz), 8.0 TWG(60Hz)/6.4 TWG(50Hz), 8.5 BTG(60Hz)/6.5 BTG(50Hz), 11.0 TWG(60Hz)/8.5 TWG(50Hz), 12.5 BTG(60Hz)/10.0 BTG(50Hz), 15.0 BTG(60Hz)/12.0 BTG(50Hz), 15.0 BTGA(60Hz)/12.0 BTGA(50Hz), 20.0 WTA(60Hz)/16.0 WTA(50Hz)