Manufacturer: Wix. Style: Radial Seal Outer Air. Service: Air. 
Media: Cellulose. Height: 18.55. Outer Diameter: 7.75. Inside Diameter Top: Closed. Inside Diameter Bottom: 4.875. 
Principle App: Champion Buses, Chevrolet Kodiak; Topkick w/ 3126 Cat 7.2L (C7), Isuzu 6HKITC (7.8L) Engines - Outer air - inner is # 49548.