Product Details: The Donaldson Primary Radial Seal Air Filter is a top-of-the-line air filter designed to provide superior filtration for heavy duty engines. With a radial seal type and a round shape, this filter is specifically designed to fit Peterbilt and Mack trucks. Measuring 543.00 mm in length, this filter is made from high-quality cellulose filter media material that ensures maximum filtration efficiency. The cellulose media type is known for its ability to perform across a wide range of heavy duty engine applications, making it the perfect choice for truck drivers who need reliable filtration. In addition to its superior filtration capabilities, the air filter is also corrosion resistant, ensuring that it will last for a long time even in harsh environments. The filter also features a Pleatloc feature that ensures uniform pleat spacing, which helps to maximize the filter's performance and lifespan. Overall, the Primary Radial Seal Air Filter for Peterbilt / Mack is an excellent choice for truck drivers who need a high-quality air filter that will provide superior filtration and long-lasting performance. FleetPride is your First Click in Heavy Duty®.