A-B1796863-AI SEAL-O RINGOne New Aftermarket Replacement Seal O Ring Fits Briggs and Stratton (B&S) Small Engines This aftermarket replacement O ring seal fits a wide range of Fits Briggs and Stratton small engines used in lawn mowers, riding tractors, zero turn mowers, pressure washers, and generators. The O ring creates a leak free seal within the engine assembly, preventing fluid or air loss that can cause rough running or performance issues. Replace this seal whenever the