This Ignition Lock Cylinder and Switch is a high-quality replacement part for your 1998-1999 Nissan Altima. It is designed to fit seamlessly into your vehicle and provide reliable ignition performance. With its Interchange Part Number of US-683, you can rest assured that it is an exact match for your car. The brand, Intermotor, is synonymous with quality and reliability. This part comes with a Manufacturer Warranty of 1 Month, giving you peace of mind knowing that it is backed by a reputable company. The Fitment Notes indicate that it is compatible with vehicles that have an automatic transmission. Buy this Ignition Lock Cylinder and Switch now and enjoy reliable and hassle-free ignition in your Nissan Altima.