Genuine OEM SEAT Battery Starter Alternator Harness, part number 2Q0971349MQ. This essential wiring harness provides the primary electrical connections between the vehicle's battery, starter motor, and alternator. It ensures reliable power delivery for engine starting and charging system operation. Weighing 0.738 kg, this harness is designed for precise routing and secure connections. Using a genuine OEM harness guarantees correct gauge wiring, durable insulation, and factory-specified connectors, preventing electrical issues and ensuring long-term system integrity.