Upgrade your vehicle's electrical system with the JD1912 Automotive Relay, a high-performance 12V 40A 4-pin relay designed for durability and reliability. Built with a sturdy iron bracket, this relay ensures secure mounting and stable operation in demanding conditions. Engineered for versatility, the JD1912 relay is compatible with a wide range of applications, including cars, trucks, vans, motorcycles, boats, diesel engines, starters, fuel pumps, water pumps, trunk solenoids, and security systems. Its robust construction allows it to handle high-current loads up to 40A, making it ideal for powering essential automotive components. Featuring a 4-pin design with clearly labeled terminals (30, 85, 86, 87), installation is quick and hassle-free. The relay operates at a standard 12V (max 14V), ensuring compatibility with most vehicle electrical systems. Whether you need to control lighting, motors, or other high-power accessories, this relay delivers consistent performance. Designed for long-lasting use, the JD1912 relay is free from high-concern chemicals, meeting safety and environmental standards. Its compact yet rugged build makes it a dependable choice for automotive enthusiasts and professionals alike. Enhance your vehicle's functionality with the JD1912 Automotive Relay—your trusted solution for efficient power distribution and electrical control.