The A & I PRODUCTS Distributor Cap is engineered for optimal performance in ignition systems. This high-quality cap ensures reliable electrical connections, enhancing engine performance and efficiency. Constructed from durable materials, it withstands high temperatures and vibrations, ensuring longevity. Its precise fit and compatibility with various models make it an essential component for maintaining your vehicle's ignition system, meeting industry standards for quality and reliability.A & I PRODUCTS distributor cap model 21A447 is an ignition system component that distributes high voltage from the ignition coil to spark plugs. Made from heat-resistant insulating materials, it includes terminals compatible with standard spark plug wires. The cap fits designated distributor assemblies and meets OEM specifications for agricultural and industrial engine ignition systems.