TN 58120 Primary Engine Air Filter Element for Tennant Sweepers and Sweeper/Scrubbers. A cylindrical type drop-in air filter. Fits diesel, LPG and gasoline powered Tennant sweepers and sweeper/scrubbers such as the popular Tennant 1550, 355, 355D, 385, 385D, 385DLH, 550, 6500, 6500D, 6550, 6550D, 6650, 6650D, 6600, 6600D, 7400, 7400D, 8200 (Gas/LPG), 8200D, 8210 (Gas/LPG), 8210D, 8400, 8400D, 8410, and 8410D. Please check your parts book for proper application since models equipped with Gas/LPG engines may require a different engine air filter. Works in conjunction, on some models, with the inner safety filter, TN 58121. One filter required per unit. Priced Each. Replaces Tennant 58120. Our Part Number TN 58120