NZR K class (1877)

The NZR K class of 1877 was a class of steam locomotives operated by the New Zealand Railways Department (NZR). These locomotives were built by the Avonside Engine Company of Bristol, England, and were initially intended for use on the relatively light trackage of the expanding New Zealand railway network. They were of the 2-4-0 wheel arrangement and were primarily used for mixed traffic duties, handling both passenger and freight services.

The K class locomotives were among the early standard designs used by NZR and played a crucial role in the development of the railway system during the late 19th century. While considered relatively small by later standards, they proved to be reliable and economical performers, contributing significantly to the transportation of goods and people across the developing colony. Over time, as heavier trains became more common, the K class locomotives were often relegated to branch lines or shunting duties. None are preserved.