Mechanical Refrigerator CarsBy the 1960’s, railroads’ aging ice reefers were being rapidly replaced by vast fleets of efficient Mechanical Refrigerator Cars. As manufacturers like Pacific Car & Foundry and Western Fruit Express developed more efficient ways to keep perishables fridge-fresh when transported by rail, these modern, diesel-powered cars became a common and colorful sight on America’s rails.Based on actual drawings from the mid-1960’s, these cars are designed with brake equipment positioned low on the ends, short ladders, and no running board on the modern roof. Slide open the vented mechanical compartment door to inspect the diesel engine on the inside of the car.