Features: Designed to fit a wide range of air-cooled diesel engines, ensuring compatibility with various generator models. Made from aluminum alloy shell for lightweight and durable performance. The rectifier provides stable voltage regulation, ensuring consistent power output. Includes a fuse box for easy installation and maintenance. This voltage regulator is typically installed on the engine and used for battery charging, not as a standalone regulated power module, offering high output stability. Specifications: Material: Metal Style: 3-wire/4-wire Size: approximately 71x79mm / 2.8x3.11 inches Package Includes: 1 pc Diesel Generator Stabilizer Note: Please allow 1-2 cm errors due to manual measurement. Check color variations may occur due to monitor differences.