SMC DOT Bulkhead Union

The SMC DOT Bulkhead Union fitting is an essential component for cleanly routing air lines through panels, making it ideal for setups with false floors or when running air lines from the interior of your vehicle to the exterior. Designed for both performance and ease of use, this fitting ensures a secure, leak-free connection on both sides of the bulkhead.

Each fitting features an integrated metal sleeve that helps properly align the air line within the fitting, improving sealing performance and long-term reliability. Built to meet DOT standards, these fittings are safe and dependable for road use.

For a quick and precise installation, pair with the SMC DOT Bulkhead Drill Bit to achieve the correct hole size.

Installation Drill Bit Sizes:

• 1/4" Bulkhead – 15mm or 9/16" drill bit
• 3/8" Bulkhead – 23mm or 7/8" drill bit
• 1/2" Bulkhead – 26mm or 1" drill bit

Key Features:

• DOT approved for safe, road-ready performance
• Ideal for routing air lines through panels and false floors
• Push-to-connect design on both sides for easy installation
• Integrated metal sleeve for improved alignment and sealing

Perfect for both professional installers and DIY builds, this fitting delivers clean routing and dependable performance for any air suspension system.