The Briggs & Stratton 699056 is a genuine OEM governor spring. This critical tension spring is responsible for regulating your engine’s speed, ensuring it maintains a stable RPM even as the workload (load) changes. Genuine OEM Option The Briggs & Stratton Governor Spring is the factory-original replacement. It is engineered to precise tension standards to prevent the engine from “hunting” (surging up and down) or over-revving, which can lead to catastrophic internal damage. This spring is a popular choice for its perfect fit and ability to restore factory-spec throttle response.