Truck-Lite 97036 Rectangular Black Foam Sealing Gasket for 21 Series Clearance Marker Lights

Maximize your vehicle's lighting reliability and lock out moisture with the heavy-duty protection of the Truck-Lite 97036 Rectangular Black Foam Sealing Gasket. Specifically engineered for the Truck-Lite 21 Series (and Super 21) rectangular sealed clearance and marker lamps, this premium OEM-grade foam gasket is an essential hardware choice for commercial truck fleets, vocational repair shops, and heavy-duty trailer operations.

When installing marker assemblies directly to metallic or fiberglass surfaces, microscopic panel deviations can allow corrosive elements to pass behind the housing. The 97036 sealing gasket compresses completely to create an airtight and watertight barrier, locking out damaging road salt, chemical de-icers, highway grime, and water. By preventing moisture from collecting behind the lamp, it actively shields electrical components against hidden panel corrosion and unexpected wiring faults.

Constructed from a high-performance black foam compound, this gasket features a total height of 2.8 inches, a total width of 6 inches, and a robust 0.33-inch depth. This thick cushioning acts as a highly effective vibration dampener, isolating delicate internal electronics from harsh over-the-road structural frame shocks. Designed for maximum versatility, it perfectly accommodates standard or reflectorized lenses and safely supports installations engineered to meet PC side-marker requirements on a 45-degree angle.