Napa Air Filter 9189Part No. 9189 Type AIR FILTER Brand NAPGLD Unit of Measure EACH Description Napa Air Filter Warranty Service Interval Type Round Height 365. 7mm Inner Diameter Bottom 105. 1mm Outer Diameter Bottom 129mm Outer Diameter Top 98mm 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 all the