D.O.T Fittings
DOT fittings are high-safety connectors for pneumatic brake systems and are certified to FMVSS 571.106 and SAE J2494. They are widely used in the brake lines of trucks, buses, and trailers, providing reliable sealing under high pressure, vibration, and harsh conditions.
In the U.S., all commercial-vehicle brake components must meet DOT standards. Globally, DOT-grade fittings are increasingly adopted for their higher safety, reliability, and lower maintenance risk.
All SHPI DOT fittings use a push-in quick-connect design for fast installation, easy replacement, and secure leak-free performance.
Fitting Types
The following categories are organized by common installation standards (Inch / Metric):
| Type | Inch | Metric | Swivel – Inch | Swivel – Metric |
|---|---|---|---|---|
| Connector Type | 68, 82, 62, 66 | M68, M62 | – | – |
| Elbow Type | 54, 65, 69, 70 | M65 | S54, S69, S70 | MS69 |
| Union Type | 64, 71, 72, 77, 79 | M64, M79 | S71, S72 | MS71, MS72 |
SHPI recommends using DOT fittings with ▶ SHPI DOT Air Brake Tubing for optimal sealing and long-lasting brake system performance.
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Size Range
- Inch Tubing: 1/8" – 5/8"
- Metric Tubing: 4 mm – 12 mm
Why Choose SHPI DOT Fittings?
- Complete range covering both Inch and Metric systems
- Fully compliant with DOT (FMVSS 571.106) international safety standards
- Push-in design enables fast, tool-free servicing and reduced downtime
- High sealing performance, high pressure resistance, and excellent vibration durability
Contact SHPI
SHPI provides a full range of pneumatic tubing, DOT brake tubing, and certified DOT fittings to help maintain the highest level of safety and reliability for your vehicles and equipment.
For technical support or product selection assistance, please contact SHPI – The Hose & Tubing Expert.
