4 Inch Round Light Grommet – Heavy Duty Vinyl Mount – Replaces Truck-Lite 40700

Secure your vehicle’s lighting and protect against road vibration with the 4 Inch Round Light Grommet by Automann. This heavy-duty vinyl mounting ring is designed to house industry-standard 4-inch round sealed lamps, providing a tight, vibration-dampening seal. Whether you are installing it on the driver side or the passenger side of a truck, trailer, or vocational vehicle, this component ensures your lighting remains stable and protected from shock damage.

Professional Grade Vibration Isolation: The 4 Inch Round Light Grommet Advantage

The 4 Inch Round Light Grommet (Automann Part # 571.GR40) is manufactured from high-quality, weather-resistant vinyl that remains flexible even in extreme cold. It is specifically engineered to fit standard 4.5-inch cutouts, allowing for a flush "snap-in" installation of any 4-inch sealed lamp. Note: By isolating the light from the metal frame of the vehicle, it significantly extends the life of incandescent bulbs by absorbing road impact.

As we continue to build the largest inventory of commercial truck parts in Illinois, we prioritize lighting accessories that offer a clean, finished look. This grommet is a direct professional-grade replacement for Truck-Lite 40700, Peterson 42618, Grote 91740, and Optronics A45GB. Its flush-mount design ensures the lamp stays securely in place through high-pressure washes and rough terrain.