A-B1798767-AI GUARD-DEBRIS SCREENOne New Aftermarket Replacement Guard Debris Screen Fits Briggs and Stratton Small Engines This aftermarket replacement Guard Debris Screen (flywheel debris screen) protects the flywheel and internal engine components from grass clippings, dirt, and other debris drawn in during operation. It is commonly found on Fits Briggs and Stratton (B&S) small engines used in riding lawn mowers and other outdoor power equipment. A damaged or missing debris screen