EnPro 'cautiously optemistic' that Q4 will be near Q3 results Steve Macadam, EnPro president and CEO, stated, “We are cautiously optimistic that sales for Q4 will be near Q3's level. OEM order activity remains firm in our semiconductor, aerospace and trucking markets and we have a substantial shippable backlog in Power Systems in the fourth quarter. However, margins generated by engine revenues and OEM sales are generally lower than our aftermarket margins. As a result, fourth quarter segment margins may be lower than those we reported in Q3. We remain excited about the longer term benefits from a number of strategic growth initiatives underway and the potential for additional growth that our new capital structure affords us.".