The genuine Western 39901 Headlight Service Kit serves as a factory-original LED headlamp assembly engineered exclusively for the driver side (left side) of modern Western snowplow lighting networks. Custom-designed for the Western NightHawk™ LED system, this high-performance light pod replaces a cracked casing, shattered lens, or damaged heating element resulting from severe commercial plowing impacts or storage accidents. Commercial snow contractors and fleet mechanics install this authentic single-side lamp subassembly to instantly restore full lighting capabilities without purchasing a completely new dual-lamp lighting kit.
This original equipment manufacturer service kit features 100% solid-optic LED technology, projecting up to two times the lumen output of legacy halogen plow lights while maintaining a highly tuned, wide illumination pattern. Engineered with exclusive EdgeView™ technology, a dedicated lens and LED cluster direct light outward through the outer edge of the frame to deliver a full 180 degrees of edge-to-edge plow visibility. To eliminate visibility loss during heavy winter storms, this smart headlamp features an intuitive built-in heating grid that automatically senses glass temperature and activates heating elements to liquefy packed powder and prevent dangerous ice bridging across the bezel-free, forward-sloped lens face.
For professional ice removal operators and fleet mechanics, utilizing a genuine factory service kit ensures a perfect mechanical lock on original light towers and maintains absolute parity with the truck-side isolation module programming. The assembly features a robust 16-pin connector layout built to mate seamlessly with the dedicated plow-side LED light harness. Installing this authentic replacement component preserves original equipment voltage thresholds and guarantees uncompromised, flicker-free operation through deep drifts, freezing rain, and extreme sub-zero thermal stress.
Benefits of the Western 39901 LED Headlight Service Kit
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Genuine OEM Lighting Assembly: Tailored to factory specifications for an exact drop-in replacement on the driver side of Western NightHawk LED plow light systems.
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Exclusive EdgeView Technology: Directs dedicated light arrays outward to provide a full 180-degree view spanning from plow tip to plow tip.
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Intuitive Lens Heating System: Onboard sensors automatically trigger structural heating elements to melt snow accumulation and prevent freezing ice build-up.
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Solid-Optic High Output: Delivers exceptional beam patterns for both high and low beam operations while drawing minimal electrical amperage.
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Bezel-Free Sloped Design: Forward-slanted lens architecture prevents ice bridging from occurring during continuous exposure to wet, freezing powder.
Additional Info and Common Related Parts
| Part Number | Item Name | Technical Role |
| 39902 | NightHawk LED Passenger Side Headlight Service Kit | Matched right-side companion LED light pod subassembly to restore full passenger-side vision. |
| 72548 | LED Headlight Harness (Plow-Side) | Main 16-pin plow-side wiring loom that splits current directly to both LED headlight pods. |
| 39903 | LED Headlight Hardware Kit | Complete structural mounting bracket assembly and adjustment fasteners required to lock light housings to the lift tower frame. |
| 49326 | Dielectric Grease (2 oz) | Recommended insulating compound applied inside electrical terminal plugs to seal out road salt brine and prevent oxidation. |
Always refer to your Western Plow’s documentation and vehicle-specific installation instructions to confirm compatibility and proper installation procedures.


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