Haltech Firewall Rubber Wiring Grommet — 51mm OD 28mm ID

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Professional Firewall Protection

Keep your engine harness safe from sharp edges and environmental debris with the Haltech Firewall Rubber Wiring Grommet. Designed with a 51mm (2in) outer diameter and a 28mm (1-1/8in) inner diameter, this high-quality rubber grommet is the perfect solution for passing large wiring looms through the firewall of your vehicle. It provides a tight, weather-resistant seal that prevents chafing and potential electrical shorts, which are common causes of intermittent ECU issues.

Key Features

• Durable, heat-resistant rubber construction
• 51mm OD for standard firewall hole sizes
• 28mm ID provides ample room for multi-conductor harnesses
• Prevents wiring damage from sharp metal edges
• Essential for clean, professional engine bay aesthetics

When routing a standalone engine harness, the firewall pass-through is a critical point of failure if not properly protected. A high-quality grommet not only protects your investment but also keeps the interior of your vehicle sealed from engine bay heat, fumes, and moisture. Whether you are building a track-only race car or a high-end street build, proper cable management is the hallmark of a quality installation. Find all your essential fabrication and wiring components at GGCRACING.