3/8in Grommet 10pk

The 3/8in Grommet 10pk from ALLSTAR PERFORMANCE is an essential firewall and chassis component designed for builders, restorers, and fabricators who need reliable wire and cable routing solutions. Grommets protect critical wiring harnesses by isolating them from sharp metal edges, vibration, and environmental exposure—a fundamental requirement in custom automotive builds, engine swaps, and restoration projects. This 10-pack provides multiple grommets for comprehensive coverage across your entire vehicle's electrical system without requiring multiple purchases.

Each grommet features a 0.375 inch inner diameter, 0.5 inch outer diameter, and 0.25 inch thickness, engineered to accommodate standard wire bundles while maintaining a secure fit through firewall and bulkhead holes. Constructed from durable black rubber, these grommets resist oil, coolant, and fuel exposure while providing vibration dampening that extends wire jacket life and reduces electrical noise. The rubber compound's flexibility allows easy installation without special tools—simply insert the bundle through the center and secure the grommet by pressing it into the drilled hole until flanges seat flush.

Street rod builders, classic car restorers, and hot rod fabricators rely on firewall grommets to meet safety and electrical standards while maintaining a professional installation appearance. The compact 10-pack sizing makes this ideal for single-vehicle projects or for shops maintaining an inventory of common sizes. Compatible with any application requiring 3/8 inch diameter wire passage—harness routing, brake line protection, transmission cooler lines, and fuel system components all benefit from proper grommet installation.