I would presume so. Sorry I cannot comment more, I'm not familiar enough with Swansea to say.Would that be at Landore? I can't say I know the area well, but road access to Landore seems very tight to me. I've been working in Swansea for 12 years, travelling in via Fabian Way and the M4 from the East and I've never previously seen any rolling stock on the back of a lorry (plenty of wheels though). Today not only did I see 43321 on Fabian Way, but I saw a bogie coal hopper on the M4 near the Pyle junction too!
Edit to add, and I did think it was looking particularly grubby