The Napa Echlin DS101 Dimmer Switch is a high-quality replacement part ideal for car and truck interior control systems. With the OE/OEM Part Number DS101, this product is designed to seamlessly fit and function like the original equipment manufacturer part. Manufactured by Napa, this dimmer switch is a reliable choice for maintaining and upgrading your vehicle's interior lighting system. Take advantage of this discounted sale price to keep your car's functionality in top condition.