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Post Onsite · Air System
90191
In stock · ships from Knoxville
This is a valve stem cap (VAL/CAP) used to keep dirt, moisture, and debris out of a tire valve stem.
Confirm the part fits before you buy. Applications and interchange numbers are researched and audited per part.
We don't publish fitment for this part yet. Rather than guess, get it confirmed against your truck in under a minute.
It helps maintain proper air pressure in truck tires and prevents slow leaks. Caps are replaced when lost, damaged, or when the rubber seal inside wears out, which is common inspection items during tire maintenance. Based on similar NTH part numbers, this is likely a plastic or metal threaded cap for standard Schrader valves.
Part Number: 90191
NTH VAL/CAP
Unit: ea
Dealer: Post Onsite
Compatibility, alternatives, and more
Parts commonly needed alongside air system
