The Wester Star PTR Stainless Steel Lower Coolant Tube with Bracket is a durable and reliable replacement for OEM Number 20402-3490. Made from 304 stainless steel, this tube is sold individually and fits most Western Star PTR models from generic to late model. It is also compatible with both OEM and aftermarket numbers 20402-3490 and 204023490. This product is a practical and long-lasting solution for your cooling system needs.