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DOT Approved Air Brake Fittings — Safety-Certified Brass Components for Reliable Performance
Created at : Feb 9, 2026

When it comes to air brake systems, safety and reliability aren’t optional — they’re mandatory. Industrial Parts Fittings offers a robust line of DOT Approved Air Brake Fittings designed to meet strict U.S. Department of Transportation standards, ensuring secure, long-lasting connections in compressed air brake applications.

Brass air brake fittings are essential components in pneumatic braking systems, connecting tubing and hoses in trucks, trailers, buses, and other heavy-duty vehicles. Our products are engineered for durability, corrosion resistance, and ease of installation, making them a go-to solution for OEMs, fleets, and maintenance professionals alike.

Explore these key products in our DOT Approved series:

CA360 Brass Precision Grip Elbow for Air Brake Tube Applications

The DOT Approved CA360 Brass Precision Grip Elbow is a high-quality 90° fitting specially designed for air brake tube installations. By securely joining tube runs at an angle, this elbow fitting enables more compact routing in confined brake system layouts.

Product Highlights:

  • DOT compliance: Meets regulatory requirements for air brake connections.
  • Precision grip design: Provides a tight, dependable seal to maintain system integrity.
  • Brass construction (CA360): Offers excellent corrosion resistance and strength under harsh conditions.
  • Ideal for use wherever a directional change in tubing is necessary without compromising performance.

This elbow fitting is perfect for applications where brake tubing must navigate tight spaces or route around structural components — common in truck chassis, trailer assemblies, and bus brake lines.

CA360 Brass Precision Grip Double-End Union for Air Brake Tube Applications

The DOT Approved CA360 Brass Precision Grip Double-End Union is a straightforward but critical component used to connect two lengths of brake tubing in a straight, inline configuration. It’s a reliable link between air brake tube runs.

Product Highlights:

  • Precision grip technology: Ensures a secure, leak-resistant junction between tubes.
  • DOT approved: Built to meet air brake regulatory standards for safety and durability.
  • Solid brass body: Withstands vibration, temperature extremes, and repeated use.

This union is ideal for connecting like-sized brake tubes in straight runs — especially useful in chassis harnesses and service brake lines used across heavy-duty transportation fleets.

Why DOT Approval Matters

DOT (Department of Transportation) certification ensures that air brake fittings comply with regulatory standards for safety, performance, and material integrity. In air brake applications, failures can have severe consequences — a risk that precise, certified components help mitigate.

DOT-approved fittings like the CA360 Precision Grip DOT-approved fittings series are designed for:

  • Heavy-duty trucks and trailers
  • Commercial buses and transit vehicles
  • Construction and agricultural equipment with pneumatic brake systems
  • RV and motorhome air brake assemblies

Across these applications, parts must withstand vibration, pressure cycles, moisture exposure, and temperature fluctuations — conditions brass excels in due to its corrosion resistance and mechanical strength.

Industries That Rely on DOT Approved Air Brake Fittings

These precision-engineered brass fittings are indispensable in industries where safety and reliability are mission-critical:

1. Transportation & Logistics
DOT approved air brake fittings are essential for heavy-duty freight trucks, cargo trailers, and commercial fleet vehicles.

2. Bus & Passenger Transport
Transit and school buses use complex pneumatic brake systems that demand dependable fitting performance.

3. Construction & Heavy Equipment
Equipment with integrated air brakes — such as dump trucks and cement mixers — require rugged fittings that endure harsh job site conditions.

4. Agriculture & Farming
Tractors and equipment with air brake systems benefit from durable brass connections that resist corrosion from moisture and chemicals.

Built for Dependability — Every Time

At Industrial Parts Fittings, our DOT Approved Air Brake Fittings combine precision engineering, proven materials, and safety certification to meet the needs of the toughest applications. Whether you’re maintaining a fleet, building a custom vehicle system, or replacing worn components, choose fittings that deliver peace of mind and lasting performance.

👉 Explore the full Air Brake Fittings category:
(https://www.industrialpartsfittings.com/brass-fittings/air-brake-fittings)