HO Scale GP9 Air Tank Replacements – Resin – Fits Athearn Blue Box GP-9 – 2-Pack

Detail your Athearn Blue Box GP-9 right with these resin air tank replacements.

You get two tanks—ready to install, HO scale, super clean casting.

Made for universal fit on GP9 models.

2 inches long, mint condition, resin material.

No UPC, no box, just the parts you need to take your build to the next level.

If you’re into scale accuracy, grab a set.