The CAT 6I-2501 Radial Seal Air Filter is a new old stock original equipment manufacturer (OEM) part designed specifically for Caterpillar equipment. This air filter is compatible with Caterpillar machines and is a crucial component for maintaining the performance and health of your heavy equipment. With the trusted CAT brand name and precise model fit, you can rely on the 6I-2501 filter to ensure optimal air filtration and engine protection.