The genuine Western 72558 Harness Kit establishes the complete truck-side main lighting connection architecture for multiplex snow plows. This heavy-duty assembly routes precise digital data and operating voltage across your vehicle compartment out to the front grille plugs. Consequently, integrating a fresh factory wiring kit stops lighting dropouts. It also guarantees immediate signal transmission whenever you toggle the headlamp beams from the truck cab.
This highly advanced system is engineered explicitly for contemporary FleetFlex electrical layouts running premium factory LED lighting platforms. Because it consolidates multiple legacy power lines into a centralized wiring profile, it protects sensitive under-hood truck computer networks from overloads. Furthermore, all connection leads feature watertight rubber over-moldings to block corrosive road salt spray completely. Therefore, your lighting signals remain clean and unobstructed through heavy winter weather.
This comprehensive master installation kit includes the primary 72546 lighting harness component. The package also houses the 72565 under-hood power adapter lines, the 72550 fuse layout block, and specific 72643 or 69915 routing components. Utilizing this original factory combination eliminates raw wire splicing. As a result, you preserve your factory vehicle warranty while completing a clean shop installation.
Benefits of the Western 72558 Harness Kit
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Engineered exclusively as a direct fit for Western, Fisher, and SnowEx FleetFlex truck-side installations.
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Tailored specifically to support original factory-upgraded LED plow headlight configurations.
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Master package safely bundles the 72546 lighting loom, 72565 adapter, 72550 fuse block, and sub-harnesses.
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Premium weather-sealed multi-pin plugs ensure crisp electrical transmission under sub-zero vibrations.
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Does not accommodate older generation 3-plug non-multiplex configurations.
Additional Info and Common Related Parts
| Part Number | Item Name | Technical Role |
| 11766 | Truck-Side 2-Plug Kit | Supplies the companion vehicle-side main battery power and control harness assembly. |
| 29070-1 | 3-Port Isolation Module | Automatically routes the structural high and low beam signals upon mechanical attachment. |
| 61548k | Plug Cover Kit | Seals the open grille terminal contacts tightly from winter elements while detached. |
| 49326 | Dielectric Grease | Shields multi-pin grille connector terminals from moisture entry and premature rust pitting. |
Always refer to your Western Plow’s documentation and vehicle-specific installation instructions to confirm compatibility and proper installation procedures.This kit is specifically for trucks with factory LED headlights and is NOT for trucks with halogen headlights.
This complete kit includes all necessary harnesses and components for a professional installation: the 72546 – Vehicle Lighting Harness (16-Pin, LED), the intelligent 72565 – Headlamp Control Module (HCM) which is vital for managing LED signals, the 72550 – Cable Assembly (HCM), the 72643 – Adapter, Dual-Wire, HCM (10-Pin), a 69915 – Plug Cover for protection, and all required fasteners and cable ties. Utilizing this authentic Western LED Electrical Kit guarantees precise functionality, allowing your plow lights to operate correctly while maintaining the integrity and sophisticated diagnostics of your truck’s advanced lighting system, ensuring safe and reliable plowing operations.
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