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The DAC 1900043 is a genuine Douglas Autotech clock spring kit engineered for Class 8 truck steering systems (used in Freightliner and similar models). This kit enables electrical continuity for horn, steering wheel controls, airbag (if equipped), and other systems while allowing free steering rotation. Made to Douglas Autotech (formerly Freightliner OEM supplier) standards, it ensures precise fit and reliable performance under daily vibration and wear.