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The AMP Research PowerStep wire harness is built for GM HD diesel trucks and is light‑kit ready, providing the electrical interface required for PowerStep motorized running boards. It supplies dedicated wiring and connectors for integration into AMP Research PowerStep systems on compatible GM heavy‑duty truck platforms without implying vehicle‑specific parts beyond the harness.
AMP Research PowerStep Wire Harness for GM Trucks HD Diesel (Light Kit Ready)
