utah pneumatic 1/4" DOT air line SAE J844 PA12 nylon tubing — 100 ft black, UV‑stabilized, 145 PSI

Utah Pneumatic's 1/4" DOT air line is a 100-foot roll of SAE J844-compliant PA12 nylon tubing engineered for reliable 145 PSI performance in automotive and industrial pneumatic systems.

This black 1/4-inch OD nylon tubing is built to meet DOT and SAE J844 standards, offering a long-lasting, UV-stabilized solution for truck and trailer airlines, air suspension systems, shop air, and automated equipment. Designed for harsh road conditions and wide temperature swings, the PA12 construction resists moisture, chemicals, and salt while remaining flexible enough to run through tight harnesses and fittings.

How does this tubing hold up under highway and outdoor conditions?

The PA12 nylon formulation includes UV stabilization and chemical resistance to withstand exposure to sunlight, road salt, oils, and moisture without rapid deterioration. It maintains dimensional stability across a broad temperature band so it won't soften or become brittle in typical service conditions.

• UV-stabilized PA12 resists sun degradation and cracking
• Compatible with road salts and common automotive chemicals
• Operates from -40°F to 200°F with consistent performance

Will this 1/4" line fit standard fittings and maintain pressure?

The tubing is manufactured to precise 1/4-inch outer diameter tolerances to ensure secure connections with standard push-to-connect and compression fittings used in pneumatic systems. It's rated for a working pressure around 145 PSI, making it suitable for air ride, brake-related auxiliary lines, and compressor-fed circuits where DOT/SAE compliance is required.

• 1/4" OD dimensioning for common 1/4 fittings
• Optimized for consistent 145 PSI working pressure
• Meets DOT and SAE J844 specifications for automotive use

How easy is it to install and route in tight spaces?

The tubing is extruded for uniform wall thickness and smooth interior, which simplifies cutting, seating into fittings, and threading through bundles. Its inherent flexibility and kink resistance reduce installation time and lower the chance of flow-restricting bends in confined routing paths.

• Flexible yet kink-resistant for tight routing
• Precision extrusion enables clean, square cuts for fittings
• Lightweight 100-foot coil reduces handling strain during installation

What applications is this 1/4" nylon line best suited for?

This line is intended for both mobile and stationary pneumatic jobs where a DOT-rated, UV-stable nylon is preferred. Common uses include air suspension systems, trailer and truck air lines, compressor outlet runs in shops, and pneumatic tool distribution in industrial cells.

• Truck and trailer airlines that require SAE J844/DOT compliance
• Air ride suspension and leveling systems
• Shop compressor manifolds and pneumatic tooling supply
• Robotic and automated pneumatic control lines

Who is this for: Technicians, fleet maintenance shops, trailer manufacturers, and hobbyists who need a durable, regulation-compliant 1/4" pneumatic tubing solution will appreciate this Utah Pneumatic PA12 line. If you require a UV-stable, chemically resistant, and temperature-tolerant airline that fits standard 1/4" fittings and holds up to 145 PSI working conditions, this 100-foot roll provides a ready-to-install option for automotive, industrial, and air suspension projects.