HIPA Carbon Brush Alternator for HONDA 168FA 168FB 170F 2000W-3000W Generator Size: mounting holes distance (hole center to center): 25  0.50mm (about 1 inch) Mounting Hole diameter: 6.0  0.50mm (about 1/4 in) Fits 2kw-3KW generator equipped with 168FA (5.5HP),168FB (6.5HP) and 170F(7HP) gasoline engine should be used together with an avr Qty: 2