HO Gunderson Maxi-Stack II Well Cars Southern Pacific #513382 (5) (ATHG-1026)

This HO-scale five-car set recreates Southern Pacific’s Gunderson Maxi-Stack II well cars, built for double-stack intermodal service. The Maxi-Stack II design uses reinforced end wells for 40-foot containers and longer middle wells to accommodate 20-foot and 48-foot containers, echoing SP’s early move to double-stack traffic along the Sunset Route from Los Angeles to New Orleans.

Model details emphasize realism and durability: heavy cast metal frames for reliable performance whether loaded or empty; etched stainless-steel walkway platforms; separately applied brake and trainline details; bent-wire grab irons; roller-bearing trucks in 70- and 125-ton configurations; and rubber inter-car trainline hoses, including the characteristic hoses along the top of the side frames. Produced by Athearn Genesis, these models faithfully reproduce the prototype, offering a convincing and sturdy addition to an HO-scale intermodal fleet.