Dirk Coetzee, now renamed MPUNZI, was built in 1978 by Dorbyl. She is a twin unit tractor tug using the Z peller system. She has a bollard pull of 43 Tons, is 35,62m long with a beam of 11m and a draft of 5,56m. Her sister UMTHWALUME (ex Coenie De Villiers) has similar dimensions.