The A-Premium Alternator Rectifier Diode is designed to enhance the performance and efficiency of your vehicle's electrical system. Key Features: - Compatible with Chevrolet, GMC, Buick, and Pontiac models - Built-in aluminum heat sink for effective heat dissipation - High-performance rectification for optimal battery charging Technical Specifications: - Material: Aluminum heat sink - Compatible Vehicles: Chevrolet, GMC, Buick, Pontiac - Part Type: Rectifier Diode