The genuine Western 28056 Adapter Harness serves as a specialized electrical conversion package engineered to bridge compatibility between an existing vehicle-side straight blade electrical configuration and an early 3-plug multi-position V-plow moldboard. This authentic factory-original kit allows light trucks already wired for 3-plug straight-blade systems to control early Western MVP V-plows or Fisher EZ-V multi-position plows without tearing out and replacing the core under-hood wiring infrastructure. Fleet mechanics deploy this conversion assembly to maximize vehicle utility and adapt truck-side power circuits to handle complex multi-position blade commands.
This comprehensive factory-authorized kit contains two principal wiring components: the 63411 Vehicle Power Harness and the 26346 Vehicle Control Harness. Together, these heavy-duty assemblies adapt the truck’s outgoing electrical signaling framework, allowing the operator to execute clean multi-angle actions—including V, scoop, angle, and straight-blade configurations—directly from the in-cab joystick or handheld controller. Because it is built to exact manufacturer specifications, the internal wiring harnesses feature correct gauge sizes and precision pinning to prevent low-voltage drop-offs, circuit overload spikes, or communication errors across the switching networks.
For commercial contractors and winter maintenance mechanics, using this authentic factory adapter kit preserves the long-term electrical reliability of the vehicle’s electrical charging system. A distinct mechanical benefit of installing the Western 28056 layout is that the truck retains the secondary capability to run standard straight blades over the modified V-plow wire path when coupled with an optional 66760 control adapter. The entire wiring assembly is enclosed in a high-durability, weather-sealed loomed casing that resists oil exposure, sub-zero thermal cracking, and direct road salt spray throughout intensive winter clearing shifts.
Benefits of the Western 28056 Adapter Kit
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Genuine OEM Conversion Kit: Calibrated and pinned precisely to manufacturer standards to safely connect 3-plug straight-blade vehicle lines to 3-plug V-plows.
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Complete Harness Pack: Arrives factory-bundled with the essential 63411 Vehicle Power Harness and the 26346 Vehicle Control Harness.
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Reduces Shop Labor: Eliminates the necessity, high parts expense, and heavy labor time required to strip out an existing vehicle-side wiring layout.
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Preserves Fleet Versatility: Modifies the vehicle configuration so it can operate both multi-position V-plows and standard straight blades interchangeably.
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Weather-Sealed Construction: Heavy-walled protective loom seals critical copper wiring paths against brine penetration, sub-zero moisture, and engine bay heat.
Additional Info and Common Related Parts
| Part Number | Item Name | Technical Role |
| 66760 | Control Adapter (MVP to Straight) | Adapts the in-cab controller harness path to run a straight blade plow over the modified V-plow vehicle wiring network. |
| 29047 | 4-Pin to 10-Pin Isolation Module Adapter | Links distinct generation terminal interfaces safely across older and newer style isolation modules. |
| 49326 | Dielectric Grease (2 oz) | Recommended insulating compound applied inside electrical terminal plugs to seal out road salt brine and prevent oxidation. |
| 5794K-1 | Under-Hood Motor Relay Kit | Heavy-duty solenoid switch manages high-amperage power demands moving from the vehicle battery to the pump motor. |
Always refer to your Western Plow’s documentation and vehicle-specific installation instructions to confirm compatibility and proper installation procedures.




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