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Phillips Industries · Air System
11-339
In stock · ships from Knoxville
The Phillips 11-339 is a 15-foot blue coiled air brake line with a 40-inch lead, designed to carry pressurized air from the tractor to the trailer’s service (blue) gladhand.
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Other applications
Other applications
Blue coil is for the service (control) line; the red emergency line uses a different part. No specific vehicle model listings exist—this is a universal aftermarket replacement for any combination vehicle using standard SAE/DOT air‑brake connections.
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It is built with a heavy‑duty plated steel spring guard to protect the nylon tubing from kinks and wear, and remains flexible in temperatures as low as -40°F. This assembly is typically replaced when the original line becomes cracked, leaks air, or fails to retract properly, helping maintain reliable brake operation and DOT compliance.
Part Number: 11-339
COILED AIR LINE, BLUE W/40 LD
Unit: ea
Dealer: Knox Trailers
Compatibility, alternatives, and more
Parts commonly needed alongside air system
