A-B1690980-AI GEAR-TIMINGOne New Aftermarket Replacement Timing Gear Fits Briggs & Fits Stratton Small Engines This aftermarket replacement timing gear (Fits Briggs & Fits Stratton OEM part number 690980) is a critical engine component responsible for synchronizing the crankshaft and camshaft to maintain precise valve and piston timing. Proper timing gear function ensures smooth engine operation, efficient combustion, and reduced internal wear on Fits Briggs & Fits Stratton