Fits GX340 (11HP), GX390 (13HP), GX610 (18HP), GX620 (20HP) generators Replacement for part numbers: 28400-ZE3-W01, 28400-ZE3-W01ZA, 31-060, Rotary 26-10379, 150-707 Center-to-center hole length: 200mm / 7.87in High-quality replacement starter pulley for lawn mower engines Easy to use with pull rope for engine starting Ideal replacement for damaged or worn starter pulleys Material: Metal Dimensions: 48 x 210mm / 1.89 x 8.27 inches (H x D) Mount hole diameter: 6mm / 0.24 inches Mount hole distance: 100mm / 3.94 inches Core diameter: 50mm / 1.97 inches Color: Black and Red Package includes: 1 x Starter pulley with steel plate ratchet Note: Other items not included Please note that lighting and monitor settings may cause slight color variations between the image and actual item Measurement tolerance: +/- 1-3cm