A-B1393127S-AI CLUTCH-STARTEROne New Aftermarket Replacement Starter Clutch Fits Briggs and Stratton (B&S) Small Gasoline Engines This aftermarket replacement starter clutch fits the rewind (recoil) starting system on Fits Briggs and Stratton (B&S) horizontal cast iron small gasoline engines. The starter clutch engages the crankshaft during the pull start sequence and releases automatically once the engine fires, making it a critical component for reliable engine starting. This