Truck-Lite 97039 Round Black Foam Mounting Gasket for Model 91 LED Stop/Turn/Tail & Turn Signal Lights

Protect your fleet’s high-visibility safety lighting from weather damage and heavy road vibration with the Truck-Lite 97039 Round Black Foam Mounting Gasket. Engineered specifically as the exact OEM replacement surface seal for Truck-Lite’s popular 7-inch round Model 91 LED series, this premium foam gasket is a crucial, cost-effective component for commercial truck fleets, vocational repair shops, and school bus maintenance facilities.

When installing surface-mount lighting assemblies directly onto metal or fiberglass vehicle panels, minor structural deviations can allow moisture to seep behind the lamp. The 97039 round mounting pad compresses completely under screw tension to form an airtight and watertight environmental barrier. This active shield permanently blocks out damaging road salt, chemical de-icers, highway grime, and water ingress—shielding your underlying electrical connections against the green-wire corrosion that triggers unexpected circuit faults.

Constructed from a premium-grade, high-density black foam compound, this gasket features an expansive 7-inch total height and width. This footprint acts as an exceptional vibration dampener, isolating the delicate internal epoxy-sealed electronics of your Model 91 lamps from the punishing chassis shock of long-haul routes. It allows for flawless, secure surface attachment in any 360-degree rotational mounting position.