All seven were withdrawn from service in 1944 (coinciding with the winding-down of military operations, and the return of WP&Y to civilian control) and were barged to Seattle in 1946 for scrapping.

The three locos which remained with the D&RGW, numbers 473, 476 and 478, were assigned to the Durango – Silverton tourist trains from the 1950s onwards.

New firemen sometimes have difficulty learning this because there are fewer training hours available on the K-28 locomotives compared to the railroad's more-used K-36's which have a larger firebox and have more leeway of poor technique.

The Oahu Railway and Land Company in Hawaii was impressed with the K-28 and ordered four locomotives of the same design which were delivered in 1925 and 1926.

These were identical in specification but oil-fired and with minor differences in fittings (slightly shorter tender with an oil tank in place of the coal bunker, smokebox front, air compressor location, headlamp, etc.).