This voltage regulator rectifier is compatible with several models including Kubota, Grasshopper, Kokusan Denki, and Yanmar ZD1. It is designed to regulate voltage for the lawn mowers, ensuring optimal performance. The package dimensions are 5.04 x 3.98 x 2.05 inches, and the weight is 7.8 ounces. The OEM part numbers for this product are 121450-77711, 121450-77790, 121520-77710, 121522-77790, and 230-58005, 15. The manufacturer part number is YJZLQ20-CMT309. This voltage regulator rectifier is a reliable replacement part that will keep your lawn mower running smoothly.