Radial Seal Inner Air Element Fits_Inside: RS4579 Fits: Atlas Copco Drilling Rigs; Case-International, New Holland Tractors; Volvo Dump Trucks Replaces: Volvo 11110218; Donaldson P781399 O.D.: 9 3/32 (231.0) I.D.: 6 29/32 (175.4) One End Length: 19 3/32 (485.0)