Genuine Ratioparts 007135 air filter, an essential component for maintaining the performance and longevity of various Briggs & Stratton engines. This high-quality aftermarket air filter effectively filters contaminants, ensuring clean air intake for optimal engine operation. It serves as a direct replacement for OEM part numbers Briggs & Stratton 491588, 491588S, and 399959. The filter measures 132 mm in length, 112 mm in width, and 20 mm in height, weighing 0.05 kg, providing a precise fit for compatible engine applications.