United Pacific 31508 – 2-1/2" Closed Back Light Grommet

United Pacific 31508 – 2-1/2" Closed Back Light Grommet

The United Pacific 2-1/2" Closed Back Light Grommet provides a tight, vibration-resistant fit for marker and clearance lights while sealing the rear of the lamp opening. The closed-back design blocks moisture, dust, and debris from entering the housing for maximum protection and performance.

• SKU: 31508
• Black rubber grommet for 2-1/2" round lights
• Closed-back design helps seal light housing and prevent contamination
• Recess mount with full rubber backing
• Provides additional shock and vibration resistance
• Durable molded rubber for long-lasting flexibility
• Ideal for trucks, trailers, and heavy-duty lighting applications
• Easy press-fit installation — no tools required

Performance & Fit

This grommet is built to fit standard 2-1/2" marker and clearance lights while providing a clean, sealed finish. The closed-back feature protects electrical connections and enhances resistance against water, dust, and vibration in demanding environments.

Installation

1. Clean the mounting surface and light housing opening.
2. Insert the grommet into the 2-1/2" hole with the closed back facing inward.
3. Press the light fixture firmly into the grommet until fully seated.
4. Verify the light is secure and centered in the opening.

Why You’ll Love It

This 2-1/2" closed-back grommet delivers extra protection where it matters most. It keeps your lights securely mounted, sealed from road elements, and cushioned against vibration for longer-lasting performance.

Common Questions

Q: What type of lights does this grommet fit?A: Fits standard 2-1/2" round marker and clearance lights.

Q: What makes this different from an open grommet?A: The closed-back design provides additional sealing and protection for the rear of the light housing.

Q: What material is it made of?A: Flexible black rubber for shock absorption and weather resistance.

⚠️ California Proposition 65 Warning

This product can expose you to chemicals including Carbon Black, known to the State of California to cause cancer. For more information, visit www.P65Warnings.ca.gov.

Note: Standard 2-1/2" closed-back rubber grommet with recess mount. Designed to provide vibration resistance and a sealed fit for round marker and clearance lights.