How to Choose the Right Headlight Design for Your W900B/W900L Model
Many 4 x 6 LED projection headlight designs come with built-in auxiliary lights in amber or clear white, halo glow running lights that stay on day or night, turn signal position lights, and reflector accent lights. Designed with durable polycarbonate lenses, some brands feature built-in heating technology for rigs that operate in harsh winter weather. Some lighting styles require you to take your existing bulbs for your hi/low beam lights and place them into the new headlight assembly. Others are complete sets â the projector light kit comes with hi/low beam bulbs for the driver and passenger side. The headlight housing come in blackout or chrome designs. The surrounding bezels or headlight trim can be swapped out for greater customization: visored bezels, chrome-polished trims, headlight bezels with LED reflector light bars, and more. Although Kenworth W900L/W900B headlights have a square design, we also stock rounded headlights for the W900 series. To get an accurate fitment, however, youâll need a custom conversion light kit or a new custom hood that will properly fit round headlights in place of your square OEM headlights.Shop for Dozens of Style Options
Whatâs the best lighting style upgrade? The choice is yours. The various pattern designs and layouts canât and wonât affect performance. - LED projector headlights with halo rings and DRLs. - Blackout or chrome housing options for bold styling. - Sealed beam and halogen replacements for a classic look. - Custom headlight bezels, trim rings, and mounting hardware. - Dual-function headlights with integrated turn signals and position lights. - Auxiliary lighting like fog lights, LED marker lights, and headlight wiring harnesses.Why Upgrade Your Existing Kenworth W900B/W900L Headlights?
- Stronger Visibility: LED and projector-style lights help you see farther and clearer at night. - Tough Construction: Weather-sealed and vibration-resistant for tough jobs and long miles. - Custom Appearance: Choose from chrome, black, smoked, or halo-accented styles to match your build. - Easy Fitment: Most headlights and bezels are bolt-on and built to match your Kenworth's factory specs. These halogen and LED headlight products are designed to provide bright, clean light output, long-term durability, and a seamless fitment for your W900 model (years 1982 â current). Whether you're replacing a damaged set of headlights alongside your W900B/W900L truck bumper, or you're upgrading your entire front-end lighting setup, our headlight options for the Kenworth W900B and W900L give you the performance and custom look youâve been searching for. Pair your purchase with Kenworth W900B/W900L driving lights and Kenworth LED cab lights for a full lighting upgrade.Frequently Asked Questions About Kenworth W900B/W900L LED Headlights
Will these LED headlights fit my specific year Kenworth W900B or W900L?
Our LED headlights are designed to fit Kenworth W900B models from 1987-2017 and W900L models from 1987-2010 that use dual rectangular headlight configurations. These are direct replacements for the standard 4x6 inch rectangular sealed beam headlights. If your truck has been modified with custom headlight buckets or aftermarket grilles, we recommend measuring your current headlight dimensions before ordering to ensure proper fitment.
Do I need any special wiring or adapters to install these LED headlights?
Most of our LED headlights are plug-and-play with the standard H4656 or H4651 connectors found in W900B and W900L models. No cutting or splicing is required. However, some older trucks (pre-1990) may need an H4 to H4656 adapter plug, which we sell separately. If your truck has daytime running lights, you may need to install a load resistor to prevent hyperflashing or error messages on your dash.
How much brighter are LED headlights compared to my stock halogen bulbs?
Our LED headlights typically produce 3-4 times more lumens than standard halogen sealed beams, with most units offering between 3,000-4,500 lumens per light. This translates to approximately 200-300% brighter illumination with a cleaner, whiter light output (5,000K-6,000K color temperature) compared to the yellowish 3,200K of halogens. The focused beam pattern also provides better road coverage without blinding oncoming traffic when properly aimed.
Are these LED headlights DOT approved and legal for street use?
Yes, all LED headlights we carry for the W900B/W900L are DOT approved and SAE certified for on-road use in all 50 states. Each light is stamped with DOT compliance markings. They feature proper high/low beam patterns that meet FMVSS-108 requirements. We recommend having your headlights professionally aimed after installation to ensure they meet local inspection requirements and provide optimal visibility.
What's the typical lifespan of these LED headlights, and do they come with a warranty?
Quality LED headlights typically last 30,000-50,000 hours of operation, which translates to approximately 15-20 years of normal truck use. This is significantly longer than halogen bulbs that need replacement every 1-2 years. Most manufacturers we carry offer warranties ranging from 1-3 years against defects. The aluminum housing and polycarbonate lenses are also more resistant to vibration damage compared to glass sealed beams, making them ideal for long-haul applications.
