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Meritor · Air System
31083-28
In stock · ships from Knoxville
This is a replacement lid for the control box of a Meritor Tire Inflation System (MTIS), also known as a PSI (Pressure Systems International) control box.
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Verify your control box part number; this lid is designed for the standard Meritor MTIS control box enclosure.
Part data verified against 4 catalog sources
Numbers this part supersedes or interchanges with. Showing 3 of 3.
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It seals the enclosure that houses valves and filters for automatic trailer tire inflation, protecting internal components from dirt, moisture, and damage. The kit includes the lid, mounting screws, and a gasket to ensure a proper seal. You might replace it if the original lid is cracked, missing, or if you are rebuilding the control box during system maintenance.
Part Number: 31083-28
LID, CONTROL BOX PSI
Unit: ea
Dealer: Knox Trailers
Compatibility, alternatives, and more
Parts commonly needed alongside air system
