Ensure a tight, professional, and weatherproof fit for your lights with the 2.5″ Closed-Back Rubber Grommet (United Pacific #31508) — engineered for durability, protection, and easy installation.
Made from high-quality black PVC rubber, this closed-back recess-mount grommet is designed for 2-1/2″ round LED or incandescent marker and clearance lights. Its sealed back design prevents water, dust, and dirt from entering the light housing — making it ideal for harsh road and weather conditions.
The grommet’s flexible yet firm structure absorbs vibration and shock, helping extend the life of your truck or trailer lights while maintaining a clean, flush-mount appearance.
Key Features:
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Designed for 2.5″ round truck and trailer lights
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Closed-back recess mount protects light terminals from debris and moisture
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Fits 2.75″ hole cut-out for standard installations
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Made from durable black PVC rubber
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Provides shock and vibration resistance for extended light life
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Compatible with LED and incandescent lights
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Ideal for commercial trucks, trailers, and heavy-duty vehicles
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6-month warranty for added confidence
Specifications:
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Manufacturer: United Pacific
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Part Number: 31508
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UPC / Bar Code: 710270315086
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Light Size: 2-1/2″
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Hole Cut-Out: 2.75″
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Package Dimensions: 3.7″ L × 3.4″ W × 1.55″ H
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Weight: 1.0 lb
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Material: Black PVC Rubber
Safety Notice:
⚠️ This product may expose you to chemicals including acrylonitrile butadiene styrene, bisphenol, and lead compounds known to cause cancer or reproductive harm. Learn more at www.p65warnings.ca.gov.
About United Pacific Mounting Accessories:
United Pacific manufactures a full line of truck lighting accessories designed to ensure secure, vibration-resistant installation for your rig. Choose from light adapters, brackets, bezels, grommets, gaskets, housings, visors, reflectors, and replacement lenses — all engineered for long-haul durability and professional-grade performance.
