Preparing a K4 By Angela Cotey | December 9, 2021 | Last updated on August 8, 2025 Email Newsletter Get the newest photos, videos, stories, and more from Trains.com brands. Sign-up for email today! Get Updates At the Pennsylvania’s South Amboy, N.J., engine terminal in the mid-1950s, a hostler shovels coal into the firebox of a K4s Pacific in preparation for its next run. Don Wood photo Share this article Print Facebook