Firewall Gromment 4in OD 1-3/4in ID

The Firewall Grommet 4in OD 1-3/4in ID from SEALS-IT is a vital component for engine bay modifications or restorations. It is designed for enthusiasts and mechanics who need to run wiring harnesses, fuel lines, or brake lines through their firewall while ensuring a secure seal. This grommet is trusted for maintaining factory-quality integrity in custom builds and performance upgrades.

Constructed from durable elastomer material, the grommet features a 4-inch outer diameter and a 1-3/4-inch inner diameter, allowing for the passage of multiple small-gauge wiring bundles or fuel lines. Its design provides a tight seal that protects against sharp edges and engine heat, while the rubber compound resists exposure to oil, coolant, and fuel, ensuring longevity in harsh environments. The compact wall thickness of 0.25 inches offers structural support without adding excess bulk.

Ideal for street machines, hot rods, and resto-mods, this firewall grommet is perfect for vehicles undergoing electrical or fuel system rewiring. Installation is straightforward; simply enlarge your firewall opening to 4 inches and press the grommet into place for a permanent seal. This product is essential for anyone looking to enhance their vehicle's performance and safety.