1900 Dunbier Bundy Tube 70" PVC Coated with Brass Nuts | Marine Trailer Part

🔧 Product Description

Dunbier PVC-Coated Bundy Brake Tube 70" with Brass Nuts – Part Number: 1900

A pre-cut rigid steel Bundy brake tube with protective PVC coating, flared ends and brass tube nuts. The line provides a fixed hydraulic connection along a trailer chassis or axle where flexibility is not required.

⚙️ Key Features

• Rigid steel brake tube
• PVC outer coating improves corrosion resistance
• Factory-flared ends
• Brass tube nuts fitted
• Ready to connect to matching Dunbier hydraulic fittings

📏 Specifications

• Nominal length: 70" / approximately 1778mm
• Tube type: PVC-coated Bundy steel
• Ends: Pre-flared with brass nuts
• Tube diameter and flare thread must match the Dunbier brake system

🔄 Cross Reference & Related Parts

• Dunbier: 1900
• Flexible braided alternatives: Dunbier 1893–1901
• Straight joiner: Dunbier 1870
• Three-way tee: Dunbier 1860

🚤 Trailer Compatibility & Application

• Suits fixed sections of compatible hydraulic trailer brake systems
• Use where chassis movement will not flex the rigid tube
• Confirm routing length before bending or installation

🔌 Function

Carries pressurised brake fluid between hydraulic system components through a rigid protected line.

⚠️ Common Signs of Failure

• PVC coating is cut and steel is rusting
• Tube is kinked, crushed or deeply pitted
• Flare leaks or nut is rounded
• Line contacts suspension or sharp chassis edges
• Brake fluid loss or air entry

🛠️ Installation & Safety

• Use a proper tube bender and do not kink the line
• Start flare nuts by hand
• Secure with clips at regular intervals
• Keep clear of flexing joints and moving suspension
• Bleed and pressure-test after installation

📦 Condition

• Genuine Dunbier Marine Products trailer component
• Brand new
• Supplied as one 70" PVC-coated Bundy brake tube with brass nuts
• Supplied in original or equivalent packaging