Long Tail Nylon Air Brake Coils (Extended Pigtails) - Red & Blue Set | DOT Approved
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DOT Approved “Long Tail” Air Brake Coils (Red & Blue).

Nylon air brake coils with Extended Pigtails to prevent kinking and leaks.

  • Design: Long Tail configuration for reduced bending stress.

  • Material: Arctic Grade Virgin Nylon 12 (PA12).

  • Compliance: Meets DOT FMVSS 106 & SAE J844.

  • Performance: Superior recoil memory and -40°F flexibility.

  • Fitment: Ideal for trucks with sliding fifth wheels.

In Stock & Ready to Ship.

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📌 Product Overview

Engineered to Eliminate Stress Failures.

Standard air brake coils often fail where the stress is highest: right next to the fitting. At Victory Technology, we analyzed years of field data to engineer a solution: the “Long Tail” Air Brake Coil.

By featuring Extended Straight Pigtails (Leads) at both ends, this intelligent design moves the flexing action away from the rigid connection points, drastically reducing stress cracks and air leaks.

Manufactured by Zhuji Aoke (our manufacturing base with 20+ years of extrusion expertise), these coils use premium Virgin Nylon 12 (PA12) to offer the perfect balance of flexibility and durability. Whether you are navigating tight turns or battling freezing winters, our coils maintain their shape and seal.

🔹 Why Choose Victory “Long Tail” Coils?

  • ✅ Scientifically Designed Stress Relief:

    We didn’t just extend the tube; we optimized the geometry. The extra-long straight ends (Pigtails) improve reach and prevent “binding” at the tractor and trailer connection points, making hook-up easier and extending service life.

  • ✅ Lab-Tested “Arctic Grade” Flexibility:

    Don’t let the cold stop you. Our proprietary PA12 formulation is tested in our in-house lab to remain flexible down to -40°F (-40°C). It resists the brittleness that causes cheap plastic tubing to shatter in winter.1

  • ✅ Superior Recoil Memory:

    Using a specialized heat-treatment process, we ensure the coil snaps back to its compact shape after extension. This prevents dangerous sagging on the deck plate, reducing safety risks.

  • ✅ Verified DOT Compliance:

    Safety you can trust. Our coils are fully tested and compliant with DOT FMVSS 106 and SAE J844 standards. We hold a valid US DOT Manufacturer Code, ensuring your fleet remains legal and safe.

🔸 Technical Specifications

Precision engineered in our ISO/TS16949 certified facility.

Feature Specification
Material Premium Virgin Nylon (PA12) – DOT Standard
Tail Design Extended Straight Ends (Long Tail / Pigtail)
Tail Length Options 12″ / 40″ or Custom Lengths
Coil Working Length 12ft, 15ft, 20ft
Tube Diameter 1/2″ O.D. (Standard), 3/8″ O.D.
Fitting Thread 1/2″ NPT (Fixed or Swivel), M16, M18, M22
Working Pressure 150 PSI (Burst > 950 PSI)
Temp Range -40°C to +100°C (-40°F to +212°F)
Certification DOT FMVSS 106, SAE J844, ISO 9001

🔹 Applications

  • Tractor-Trailer Air Brake Systems: Primary connection for Service (Blue) and Emergency (Red) lines.

  • Sliding Fifth Wheels: Extra tail length provides necessary slack for adjustable fifth wheels.

  • OEM & Aftermarket: The perfect upgrade for fleets experiencing frequent hose failures.

🔶 Packaging & OEM Customization

Victory Technology supports global distributors with flexible factory solutions:

  • Retail Ready: Blister packs or color boxes for shelf display.

  • Customization:

    • Add Spring Guards for extra abrasion protection.

    • Add Grip Handles for easier gladhand coupling.

  • Private Labeling: Build your brand authority. We can print YOUR Logo on the hose tail.

🚀 Get a Factory Price Quote Now

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