Napa Air Filter 9137Part No. 9137 Type AIR FILTER Brand NAPGLD Unit of Measure EACH Description Napa Air Filter Warranty Service Interval Type Round Height 450mm Inner Diameter Bottom 94mm Outer Diameter Bottom 132mm Outer Diameter Top 126mm 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