Briggs & Stratton Briggs & Statton Lawn & Garden Equipment Engine Flywheel Washer 691736 Genuine OEM. This is a Genuine OEM Briggs & Stratton part. This flywheel washer (part number 691736) is for lawn and garden equipment engines. Let the engine cool and disconnect the spark plug wires before installing this part. Wear work gloves to protect your ha... - Briggs & Stratton Briggs & Statton Lawn & Garden Equipment Engine Flywheel Washer 691736 Genuine OEM.