These Pair Of Freightliner And Western Star Graphite 6 Inch OD And 5-1/8 Inch ID Exhaust Gaskets are a practical and reliable solution for your exhaust system needs. With a 6-inch outer diameter and 5-1/8 inch inner diameter, these gaskets are designed to fit most Freightliner and Western Star makes and models. Made from high-quality graphite, they are durable and long-lasting. Measuring 5.39 inches long, 5.39 inches wide, and 0.98 inches tall, these gaskets are directly replaceable with OE clamps and gaskets, making installation hassle-free. With exhaust emission norm EPA 10 compliance, these gaskets ensure optimal performance. Direct OE replacement numbers AMS013 and TCXAMS013 guarantee a perfect fit.