This holistic single-case study reports on the benefits mentors derived from participating in the Increasing Minority Presence within Academia through Continuous Training (IMPACT) mentoring program. The IMPACT program was sponsored by the National Science Foundation Office for Broadening Participation in Engineering 15-7680 (awards #1542728 and #1542524). In this program, emeriti faculty were matched with underrepresented minority faculty in the engineering professoriate for career-focused mentorship. The conceptual framework of the Benefits of Being a Mentor grounded this study. Findings indicate mentors appreciate the opportunity to give back and remain engaged in the field, to relive past academic career experiences, and to support the next generation of engineering professors while adjusting to retirement. These findings aligned with the conceptual framework on three factors: rewarding experience, improved job performance, and generativity. Implications for administrators and faculty, as well as additional research areas, are discussed.