Napa Air Filter 9039Part No. 9039 Type AIR FILTER Brand NAPGLD Unit of Measure EACH Description Napa Air Filter Warranty Service Interval Type Round Height 175. 3mm Inner Diameter Bottom 120. 7mm Outer Diameter Bottom 222. 3mm Outer Diameter Top 222. 3mm Features A Nationwide NAPA Warranty backs this Air Filter Prevents microscopic dust particles from damaging Cylinder walls, Pistons and Piston Rings, which could damage an Engine's performance. NAPA Air Filters combine