Director of Aftermarket Operations
Posted Jul 20, 2026 · We last checked this listing on Oct 6, 2026
Likely interview questions for this role
Written from this job description, not a generic list. Each one notes what the interviewer is really checking.
About your past
As the highest authority in the plant, how do you set priorities across safety, quality, efficiency and delivery?
What they are checking: How they balance competing goals and whether safety truly comes first in their decisions.
Tell me about a plant you led that was struggling. What did you change first, and what were the results?
What they are checking: Whether they can diagnose and turn around operations with measurable outcomes.
Tell me about a time you developed a supervisor into a stronger leader.
What they are checking: Whether they build leadership depth rather than running everything themselves.
How do you build trust with hourly workers on the floor as the plant leader?
What they are checking: Whether they are visible and credible with frontline staff, which affects safety and retention.
What would you do
A serious safety incident happens on second shift. Walk me through your first 24 hours.
What they are checking: Their incident response, investigation and communication when the stakes are highest.
A key customer escalates a quality failure in parts you shipped. How do you respond?
What they are checking: Whether they own customer problems and drive corrective action, not just apologize.
About the work
How is running aftermarket operations different from running original equipment production?
What they are checking: Whether they understand high-mix, low-volume demand and the service levels aftermarket customers expect.
What daily and weekly metrics would you review to know how the plant is doing?
What they are checking: Whether they run the plant on a few clear measures like safety, on-time delivery and scrap.
How do you improve on-time delivery for spare parts when demand is unpredictable?
What they are checking: Whether they know inventory, planning and scheduling tools for aftermarket parts businesses.
What lean or continuous improvement methods have you actually used to lower costs?
What they are checking: Whether they have practical improvement experience instead of just vocabulary.
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Practice this out loudThe full job description
As published by Marmon Holdings.