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TECTRAN · Hardware & Fasteners
108-4
In stock · ships from Knoxville
This is a brass air brake drain fitting with a 1/4" NPT male thread and an external seat.
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Verified fitment for 3 applications
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All confirmed applications for this part number.
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Fits any air tank that uses a 1/4" NPT drain. Commonly replaced when the old drain seizes or leaks.
Part data verified against 1 catalog sources
Numbers this part supersedes or interchanges with. Showing 3 of 3.
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It screws into the bottom of an air tank reservoir on a heavy‑duty truck or trailer. When you open it by turning counterclockwise, it drains accumulated moisture, oil, and sludge from the air system to help prevent corrosion and brake valve freezing. Regularly draining the tanks extends the life of the air brake components.
Part Number: 108-4
FITTING
Unit: ea
Dealer: Post Onsite
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