Diesel Loco Shed, Golden Rock is an engine shed located in Golden Rock, Tiruchirappalli, Tamil Nadu in India. It is located north of Golden Rock railway station, falling under Tiruchirappalli railway division. It is the largest of the four locomotive sheds under the Southern Railway zone of Indian Railways.

The Indian locomotive class WDP-4 is a passenger-hauling diesel-electric locomotive with AC electric transmission designed by General Motors Electro-Motive Division and built by both GM-EMD and under license by Banaras Locomotive Works (BLW) of Varanasi, India for Indian Railways as the classes WDP4, WDP4B and WDP4D. The GT46PAC is a passenger version of the previous Indian Railways EMD GT46MAC freight locomotive. The locomotive has a 16-cylinder 710G3B diesel engine and is one of the fastest diesel-electric locomotives in service in Indian Railways.