These locomotives, together with the rest of the CGR's 8th Class Consolidations and Mastodons and the Classes 8-L1 to 8-L3 Mastodon locomotives from the Central South African Railways (CSAR), were grouped into ten different sub-classes by the SAR. The locomotives were designated SAR Classes 8 and 8A to 8F and the locomotives were designated Classes 8X to 8Z.
