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Knox Trailers · Air System
606B
In stock · ships from Knoxville
This is 3/8-inch blue nylon air brake tubing, a reinforced DOT-approved line used in heavy-duty truck and trailer air systems.
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 carries compressed air for brakes, suspensions, and accessories, typically replacing original lines that have become brittle, cracked, or chafed. The blue color often helps technicians identify the specific circuit or differentiate it from other lines. Sold by the foot, it meets SAE J844 Type B and DOT FMVSS 571.106 standards for safe operation up to 150 psi.
Part Number: 606B
AIR LINE 3/8 NYLON BLUE
Unit: ea
Dealer: Knox Trailers
Compatibility, alternatives, and more
Parts commonly needed alongside air system
