The SM 74-A Hole Plug / Firewall Grommet by Metro Moulded Parts is an essential component designed to fit into a 1-inch hole, providing a dependable seal in your vehicle's firewall or related applications. Crafted with state-of-the-art rubber compounds, this part delivers exceptional resistance to chemicals, sunlight, and ozone, ensuring long-term durability and performance. Whether you're looking for a firewall hole cover, grommet plug, sealing grommet, or rubber hole stopper, this plug stands out for its strength and versatility. Its sleek black rubber construction not only resists environmental damage but also maintains a clean and professional appearance in any installation. This high-quality firewall grommet is ideal for protecting against dust, debris, and even moisture, helping to maintain a safe and efficient engine compartment. The durable yet flexible material ensures a tight, reliable fit, reducing any risk of displacement under vibration or over time. If you're searching for rubber grommets to fit specific firewall holes, automotive hole stoppers, or rubber sealing plugs, the SM 74-A is a perfect match. It s precisely engineered to meet your needs, making it easy to install without requiring specialized tools or adjustments. Every SM 74-A Hole Plug is backed by Metro's industry-leading 30-year platinum warranty, so you can purchase with complete confidence. If this product fails within the warranty period, Metro promises a free replacement with no hassle, ensuring your satisfaction is guaranteed. Don t leave your engine compartment exposed to the elements upgrade to the SM 74-A Hole Plug today and enjoy the durability, function, and quality only Metro Moulded Parts can provide!