ordered its final six new Cape 6th Class locomotives from Sharp, Stewart. These were delivered with larger cabs than their predecessors and with bogie-wheeled tenders. They were also taken over by the IMR and, after the war, came into the CSAR as Class 6-L3. In 1912, they became Class 6E on the SAR. In 1900, two redesigned 6th Class locomotives entered service on the CGR, built by Sharp, Stewart. They had bar frames, larger cabs and bogie-wheeled tenders, and their larger heating surfaces and grate areas allowed a higher boiler pressure rating of . In visual appearance, they differed from all previous 6th Class locomotives by having higher running boards without driving wheel fairings. In 1912, they were classified as Class 6F on the SAR. In 1901, eight 6th Class locomotives entered service, redesigned and built by the Schenectady Locomotive Works to the specifications of the CGR. Also built on bar frames like the previous two and similar in appearance, they were larger, with larger boilers and diameter cylinders compared to the of all earlier 6th Class locomotives. In 1912, they became Class 6G on the SAR. Also in 1901, a batch of 21 entered service on the CGR, built by Neilson, Reid to the older plate frame design, but with a larger cab. These also reverted to the diameter cylinders of the previous British-built locomotives, with the lower running boards with driving wheel fairings. One of them was experimental, being equipped with Drummond cross-water tubes in the firebox. However, since the tubes were inclined to leak and were difficult to maintain, they were soon removed. In 1912, these locomotives became the Class 6H on the SAR. Ten bar-framed locomotives were placed in service, also in 1901, designed and built by the Baldwin Locomotive Works to the specifications of the CGR. They were larger than any of the previous 6th Class locomotives, with larger boilers, large cabs, cylinders of bore, bar frames, stovepipe chimneys, large domes and high running boards without driving wheel fairings. In 1912, they became Class 6K on the SAR. In 1902, fourteen bar-framed 6th Class locomotives entered service on the CGR, built by Neilson, Reid. They were practically identical to the two bar-framed locomotives built by Sharp, Stewart in 1900, with high running boards without driving wheel fairings. In 1912, they were designated Class 6J on the SAR. In 1904, the CGR placed its last two