Experience accurate readings and enhanced operation with the AR60515 Quad Range Tachometer, designed specifically for a seamless fit with John Deere models 404, 4230, 4240, 4430, and many others. This tachometer is an essential component for monitoring your equipment's performance, ensuring that you maintain optimal efficiency and productivity. Crafted with precision, this tachometer is a direct replacement for the original equipment, offering reliability and durability. Its compatibility with various John Deere machinery makes it an ideal choice for a range of applications, providing operators and managers with the tools they need to manage their operations effectively.