Upgrade your truck or trailer lighting installation with this 2.5″ Recess Mount Rubber Grommet (United Pacific #31504) — engineered for a perfect fit and long-term durability.
Made from high-grade black PVC rubber, this grommet is designed to securely hold 2-1/2″ round LED or incandescent marker lights, creating a tight, vibration-resistant seal. Its recess mount design with a narrow lip and open back allows for quick installation in standard truck and trailer light holes, protecting your lighting from road shock, moisture, and debris.
Whether you’re installing clearance lights, side markers, or identification lamps, this rubber recess-mount grommet ensures professional-grade fitment and performance.
Key Features:
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Fits all standard 2.5″ round truck and trailer lights
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Recess mount with narrow lip for flush, clean appearance
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Open back design for easy wiring and heat dissipation
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Made from high-quality black PVC rubber
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Provides superior vibration and shock resistance
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Ideal for commercial trucks, trailers, and heavy-duty vehicles
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Compatible with most LED and incandescent marker lights
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6-month warranty for peace of mind
Specifications:
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Manufacturer: United Pacific
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Part Number: 31504
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UPC / Bar Code: 710270315048
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Light Size: 2-1/2″
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Package Dimensions: 4.2″ L × 3.3″ W × 1.45″ 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 offers a complete line of truck lighting mounting accessories — including light adapters, bezels, brackets, gaskets, housings, visors, reflectors, and lens guards — to help you secure your lights properly and extend their lifespan. Shop high-quality parts built for long-haul durability and a perfect OEM-style fit.














