The Original Equipment (OE) Commercial Unit Manager leads the strategic management and growth of key Commercial OE customer accounts. This role is responsible for driving long-term business development, commercial strategy, customer relationship management, profitability improvement, and cross-functional execution across sales, engineering, supply chain, quality, finance, and operations. This position serves as the senior business interface for key OE customers and is accountable for developing account strategy, negotiating commercial terms, aligning internal resources, and ensuring successful execution of product launch, supply continuity, and customer satisfaction objectives.