Conqueror spent its working life at the Bowates paper mill, Kent. It was one of four locomotives acquired by Sir William McAlpine for useat ZSL Whipsnade Zoo. It worked until 1983, when it was withdrawn for overhaul and stored. In 1994, Peter Rampton acquired the locomotive, and privately stored. In 2019, the collection was passed on to the Vale of Rheidol Railway, and in 2025 to Welshpool and Llanfair Light Railway as a potential museum item.