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Knox Trailers · Tools & Supplies
2125
In stock · ships from Knoxville
Air line antifreeze is a winterizing fluid used in heavy-duty truck air brake systems to prevent moisture in the compressed-air lines from freezing, which would cause brake failure.
Confirm the part fits before you buy. Applications and interchange numbers are researched and audited per part.
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It typically contains methanol and additives that lubricate rubber seals to prevent drying and cracking, plus rust inhibitors to protect metal components from corrosion. A 1‑quart bottle like this 2125 is poured into the alcohol evaporator or injected directly into the air lines before cold weather. Regular use helps keep the entire air system functional and dry.
Part Number: 2125
AIR LINE ANTIFREEZE
Unit: qt
Dealer: Knox Trailers
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