The Danbojit Regulator Rectifier 6 Wire 815279T 883072T is designed for Mercury engines ranging from 40HP to 275HP. This package includes one regulator rectifier with dimensions of 5.04x4.57x1.73 inches and a weight of 0.57 pounds. The part number 883072T indicates a size specifically for Mercury voltage regulators, making it compatible with the specified horsepower range. The model number 815279T Regulator Rectifier Mercury ensures a high-quality product that meets the needs of lawn mower enthusiasts looking to maintain and repair their equipment.