Fits GX340 (11HP), GX390 (13HP), GX610 (18HP), GX620 (20HP) generator models Replacement for part numbers: 28400-ZE3-W01, 28400-ZE3-W01ZA, 31-060, 26-10379, 150-707 Center-to-center hole length: 200mm / 7.87in High-quality replacement starter pulley for lawn mowers and grass cutters Designed for easy installation and reliable engine starting with pull rope mechanism Ideal replacement for damaged or worn-out starter components Material: Metal Dimensions: 48 x 210mm / 1.89 x 8.27 inches (H*D) Mount hole diameter: 6mm / 0.24 inch 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: This package includes only the items listed above. Other accessories are not included. Please note that lighting and monitor settings may cause slight variations in color appearance. Measurement tolerance is +/- 1-3cm.