The Western Star Conventional 1997 To 2002 Replacement Filter is a practical and reliable solution for maintaining your vehicle's performance. This replacement filter is designed specifically for Western Star Conventional models from 1997 to 2002, ensuring a perfect fit. It is sold individually and does not include the housing. With its high-quality construction, this filter effectively removes impurities and ensures clean air circulation. Keep your vehicle running smoothly with this durable and efficient replacement filter.