CNR CKD7A

CNR CKD7A is a 4,220 hp (3,150 kW) C-C diesel-electric locomotive built by in association with  for the.

Six locomotives were built in 2012-13, all were manufactured at 's factory at. The locomotives were tested at the in  before being taken to  by  and handed over to Norfolk Southern. The CKD7A engines initially operated on freight trains on Norfolk Southern's in.

In February 2014, four out of the six engines were withdrawn from service and quarantined, after one engine tested positive for asbestos in a resin used for sound-proofing. This is despite the locomotives being certified as asbestos free. By May 2014, remedial work had been carried out and most of the engines were already back in service.

In 2017, three of the CKD7As were sold to SFG Railway Operations, who put them into lease service on the.