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99.9% Leak-Proof Environmental Seal: Advanced compound molding forms an airtight barrier around 3/4" round light cutouts to eliminate moisture ingress and premature electrical shorts.
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Optimized Panel Gauge Compatibility: Engineered to fit perfectly into mounting panels with a material thickness of .070 inches to .125 inches.
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Screwless Snap-Fit Installation: Designed for effortless flush-mounting; your 3/4-inch diameter lamps press-fit directly into place without drilling for extra mounting screws.
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Accessible Open-Back Engineering: The open backing configuration allows bullet terminals, wiring leads, and harnesses to extend freely for simplified electrical installations.
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Anti-Theft and Styling Upgrade Ready: Fully compatible with an optional chrome-plated dress-up flange to enhance style, or an anti-theft security ring (US Patent 7,572,043) to prevent component tampering.
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PC Clearance Safety Compliance: Perfectly matches DOT/SAE PC requirements when paired with an approved Model 33 LED PC-rated or combination lamp.
Truck-Lite 33720 – 33 Series 0.75" (3/4 Inch) Round Black Rubber Sealing Grommet (Open Back, .070" - .125" Panel Range)
Weatherproof your commercial fleet’s miniature lighting footprint with the Truck-Lite 33720 33 Series Sealing Grommet. Specifically engineered for 3/4-inch round clearance, side marker, and mini identification lamps, this premium-grade sealing grommet is designed to accommodate panel material thicknesses ranging from .070" to .125".
Molded from high-grade, resilient black rubber elastomer, the Truck-Lite 33720 features an open-back design that enables straightforward wire routing while offering excellent dampening against harsh road vibrations. Its precise structural engineering ensures an ultra-tight, 99.9% leak-proof environmental seal around your vehicle's lighting cutouts, isolating delicate electrical connections from water intrusion, dirt, and corrosive highway salts.