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Hoosier Tank & Manufacturing, Inc. · Air System
HOS-1231
In stock · ships from Knoxville
This is a steel air reservoir (air tank) for heavy-duty truck or trailer air brake systems, measuring 12 inches in diameter and roughly 29 to 30 inches long.
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Universal fit
Universal-fit heavy-duty air reservoir. Not application-specific; suitable for any truck or trailer air system that can physically accommodate a 12-inch diameter tank with top-mount ports. Also cross-references to a Great Dane trailer part (HOSHT-1231), suggesting use on Great Dane trailers when that OEM number is specified.
Part data verified against 5 catalog sources
Numbers this part supersedes or interchanges with. Showing 1 of 1.
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It holds a reserve of compressed air — typically around 2800 to 2850 cubic inches — and features three main ports for connecting supply and delivery lines. Air tanks like this one are replaced when they rust through, develop pinhole leaks, fail a visual inspection, or become contaminated beyond cleaning. They are also often upgraded during full brake system overhauls to ensure reliable reserve capacity and safety.
Part Number: HOS-1231
12 AIR TANK
Unit: ea
Dealer: KP Services Crossville
Compatibility, alternatives, and more
Parts commonly needed alongside air system
