Description
DOT Fitting Composite 3/8 x M12 – Male Branch Y – 177.12C616M12
This DOT fitting composite 3/8 x M12 is a high-quality male branch Y connector designed for use in commercial truck air systems. The part connects a 3/8-inch air tube to an M12 x 1.5 male thread, making it ideal for air brake and pneumatic line routing.
Made from lightweight PLC composite, this DOT-approved fitting is corrosion-resistant and performs reliably under pressure. Its push-to-connect design ensures secure sealing with no special tools. Whether you’re replacing an old connector or building a new system, this fitting delivers strength and long-term durability.
Key Features – DOT Fitting Composite 3/8 x M12
- Fitting Type: Male branch Y
- Tubing Size: 3/8 inch
- Thread: M12 x 1.5 male
- Material: Composite (PLC)
- DOT FMVSS 571.106 Compliant
- Push-to-connect for easy install
- Use in brake systems, air suspensions, and pneumatics
- Vibration and UV-resistant
- Part #: 177.12C616M12
Applications
This fitting is compatible with Volvo, Kenworth, Peterbilt, International, Mack, and Freightliner trucks. It’s commonly used in air hose systems and air brake applications.
Why Buy From TZ Parts?
TZ Parts provides fast shipping, helpful support, and a large stock of air and brake fittings for heavy-duty trucks. We’re your reliable source for both OEM and aftermarket parts.
- Trusted by fleets and owner-operators
- Fast U.S. shipping
- Friendly service and expert help
Need fitment help or bulk pricing? Call 708-866-2000.

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