The Corteco Harmonic Balancer, part number 80001698, is a component used in the engine of a vehicle to reduce vibrations and maintain balance. It is designed to absorb and dampen the torsional vibrations caused by the rotation of the crankshaft, preventing damage to other engine components. This harmonic balancer is made with high-quality materials and precision engineering to ensure optimal performance and longevity. It is a crucial part of the engine system and is essential for smooth and efficient operation of the vehicle.