Donaldson Co. has upgraded its line of stainless steel air cleaners for Class 8 tractors with its new RadialSeal sealing technology, to make its air filters self-aligning and self-sealing within the air clearer housing.

RadialSeal uses pressure-loaded urethane to hold the filter more firmly in the air cleaner housing to maintain an ultra-tight seal for better air cleaning capability. Three models are available for cowl mounting, with 11-, 13- and 15-in.-dia. sizes to complement most Freightliner, Kenworth, Western Star, International, and Peterbilt trucks.Circle 289 on reply card