This NAPA distributor vacuum advance is a high-quality replacement part for your Chevette, Regal, Skylark, or Bel Air. Made of durable metal and finished in a sleek matte silver, this distributor is a perfect fit for your vehicle. It is designed to provide reliable and consistent performance, ensuring that your engine runs smoothly and efficiently. With OE/OEM part numbers 1973517 and 1973621, this distributor is a vintage part that is perfect for collectors or those looking to restore their vehicle to its original specifications. It is compatible with a wide range of interchange part numbers, including DV1836, DV1858, 3-1386, 1973517, IGNB10025, and VC407. Manufactured in the United States, this distributor is a must-have for any car enthusiast looking to maintain the performance of their vehicle.