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

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SKU: HALHT-039001
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Sale price$15.99 Regular price$16.00
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About Haltech

Haltech engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Haltech lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

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.

Product Details

Product Description
Part Numbers
Sizing & Fit

About Haltech

Haltech engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Haltech lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

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.

Product Details

Product Description

About Haltech

Haltech engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Haltech lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

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.

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