Designed to be sanded, painted and dropped onto the Bachmann K4 boiler shell for a unique look. Just remove the steam and sand dome, whistle and bell by pushing from the inside of the K4 boiler shell until the parts pop off. Replace the steam dome and mount the cover over the smokestack and steam dome, and insert the square pin into the original square bell hole.
Printing includes a replacement headlight that will only fit the prewar model with a removed, low-mount headlight (pre-war) Bachmann model . A cast pilot is available at the Bachmann parts store.