Mytee 3/8ft OD x 100ft Black SAE J844 Nylon Air Brake Tubing - DOT

In this review the Mytee 3/8' OD x 100' black nylon air brake tubing is evaluated for trailer and commercial brake line use; it is aimed at mechanics, fleet operators, and DIY trailer owners who need a long, DOT approved replacement hose. The single biggest reason to buy is its combination of regulatory compliance and wide temperature tolerance: this tubing meets SAE J844 and FMVSS 106 standards and remains usable from -40 F to 200 F, which makes it a dependable choice for cold starts and hot operating conditions.

Key Features

• Size and length: A full 100 ft spool of nominal 3/8' outside diameter tubing provides ample material for multiple repairs or a complete trailer run without splicing.
• DOT compliant: Manufactured to meet or exceed SAE J844 and FMVSS No. 106, giving installers confidence in regulatory compatibility for air brake systems.
• Wide temperature range: Rated for use from -40 F to 200 F, the tubing keeps flexibility in cold weather and stability in high-heat environments.
• Resistance to contaminants: The nylon construction resists UV exposure, gasoline, diesel, many cleaning chemicals and road debris for longer service life in field conditions.
• Designed for fittings and pressure: Intended for use with compression fittings and rated for operation up to 150 PSI in pneumatic brake systems.
• Durability: Cold weather flexibility and abrasion resistance help the tubing hold up to typical road and yard wear.

Who It's For

This tubing is best for vehicle owners who maintain trailers, RVs, and commercial trucks and need a long, reliable length of brake line that is compliant with vehicle regulations. Shops and fleet maintenance teams who value having a full 100 ft spool on hand will find it convenient for repeated repairs and installations.

It is less appropriate for fuel transfer or applications involving constant immersion in petroleum; the manufacturer explicitly states it is not made for fuel. If you need softer, ultra-flexible tubing for tight routing on small equipment, some users report the material can be quite stiff to handle.

Pros & Cons

Pros

• Meets SAE J844 and FMVSS 106 standards, assuring regulatory compliance for brake systems.
• Wide operating temperature range from -40 F to 200 F supports cold starts and hot environments.
• Resistant to UV, gasoline splash, diesel, cleaning chemicals and road debris, which helps longevity.
• Long 100 ft length offers good value and reduces the need to join multiple shorter lengths.

Cons

• The tubing can be stiff to work with, making routing and tight bends more challenging for some installers.
• Not rated for fuel applications, so it cannot replace fuel lines.

Specifications

Brand	Mytee Products
Nominal outside diameter	3/8' (0.375')
Nominal wall thickness	0.062'
Length	100 ft
Temperature range	-40 F to 200 F
Maximum operating pressure	Up to 150 PSI (air brake systems)
Standards	Meets SAE J844 and FMVSS No. 106

Our Verdict

The Mytee 3/8' x 100' SAE J844 nylon air brake tubing is a practical, cost-effective spool for trailer and commercial brake repairs because it pairs regulatory compliance with a broad temperature tolerance and chemical resistance. It offers good value for fleets and DIYers who need a long length ready for compression fittings, though installers should be prepared to handle a stiffer material when making tight bends.

Frequently Asked Questions

Can this tubing be used for fuel lines?
No. The tubing is not made for fuel and should not be used in fuel applications.

Will it work in very cold climates?
Yes. The tubing is rated for use down to -40 F and maintains cold weather flexibility.

What fittings should be used?
It is designed for use with standard compression fittings suitable for 3/8' nylon air tubing and air brake systems.