Genuine OEM Audi Water Box Grommet, part number 8W0971871H. This essential component creates a watertight seal where wiring or hoses pass through the vehicle's water box or plenum chamber, preventing water ingress to sensitive electrical systems. It is typically located on the left side of the vehicle. Crafted from high-quality, resilient rubber, this genuine OEM grommet ensures a precise fit and long-term sealing performance, crucial for protecting vital components from environmental damage.