Previous Next Photo By Chris Carangi Former CR 6757 is seen on Q394-10 at Cooks Mills MD on 8/11/12. Unit was derated by CSX to 3,000 hp and reclassed as a SD50-2. Location Details CSX Keystone Sub Equipment Type EMD SD50 Conrail Number 6757 Post Conrail Owner CSX Post Conrail Number CSX 8667 Year 2012 Original Date 8/11/12 Collection CRHS Conrail Photo Archive Contributions