Frequently Asked Questions About Kenworth W990 Driving Lights

Will these driving lights fit my specific year model W990?

Our Kenworth W990 driving lights are designed to fit all W990 models from 2018 to present. The mounting brackets and wiring harnesses are compatible with both the standard W990 and W990 Extended Hood models. However, if your truck has aftermarket bumpers or custom modifications, you may need additional adapters. We recommend checking your bumper configuration before ordering, or contact our support team with your VIN for verification.

What's involved in the installation process, and can I do it myself?

Installation typically takes 2-3 hours and requires basic electrical knowledge. You'll need to mount the light brackets to the bumper (pre-drilled holes are standard on most W990 bumpers), run wiring through the existing grommets, and connect to your auxiliary switch panel. Most customers with mechanical experience can complete the installation using common hand tools. Each kit includes detailed instructions, and we offer phone support if you encounter any issues. Professional installation usually runs $150-250 if you prefer to have a shop handle it.

Are these lights DOT compliant, and what's the actual light output?

Yes, all our W990 driving lights meet DOT FMVSS 108 requirements for auxiliary forward lighting. LED options typically produce 3,000-5,000 lumens per light with a focused beam pattern extending 500-800 feet. Halogen options range from 1,200-2,000 lumens with a 300-500 foot throw. Remember that DOT regulations limit you to a maximum of 4 forward-facing auxiliary lights, and they must be wired to shut off automatically when you switch to low beams.

What's the difference between the chrome, black, and stainless steel options?

Chrome lights feature a triple-chrome plated steel housing that matches OEM Kenworth chrome but requires regular polishing to maintain shine. Black powder-coated options offer the best corrosion resistance and hide dirt well, making them ideal for work trucks. Stainless steel versions provide excellent durability with minimal maintenance - they won't rust or require polishing like chrome, though they have a slightly different finish than chrome. All three options use the same internal components and provide identical light output.

How do these lights hold up in harsh weather conditions?

Our W990 driving lights are built for commercial use with IP67 waterproof ratings, meaning they're fully sealed against dust and can handle direct pressure washing. The polycarbonate lenses resist cracking in extreme temperatures from -40F to 185F. LED models include integrated heat sinks to prevent overheating, while sealed beam halogens use heavy-duty glass. Most warranty claims we see are from impact damage rather than weather-related failures. We offer a 2-year warranty on LED models and 1-year on halogen options.