BMW E46 3 Series / E83 X3 / E85 Z4 Radiator Coolant Hose Connector – OEM Cooling System Repair Fitting for 320i, 330i, X3 & Z4 Models | Replaces Part No. 11534460438, 17127510952, 11531436406, 17127514404

Restore secure coolant hose connections and cooling system reliability with this OEM replacement Radiator Coolant Hose Connector for the BMW E46, E83, and E85 platform. Designed as a cooling system repair fitting for multiple factory hose configurations, this connector helps restore proper coolant routing and dependable sealing in an area that can become brittle and failure-prone over time.

On aging BMW cooling systems, plastic hose connectors and fittings are one of the most common weak points. Years of heat cycles, coolant pressure, and engine bay exposure can cause the original plastic to harden, crack, warp, or fail at the connection point. Once that happens, coolant leaks, pressure loss, and overheating concerns can follow quickly. Replacing worn hose connectors before they fail is a smart preventative maintenance step that helps protect the rest of the cooling system and engine.

This replacement fitting is designed to restore the original function of the factory connector while helping maintain a secure coolant hose connection. Whether you are repairing a leak, replacing a broken fitting during a cooling system refresh, or proactively servicing old plastic components, this part helps restore confidence in the system and maintain proper coolant flow.

Built for OEM-style fitment, this coolant hose connector is designed to integrate cleanly with the factory cooling system on compatible BMW applications. It is a simple but important repair component for keeping your cooling system sealed, reliable, and functioning the way it should.

Key Features:

• Direct OEM Replacement: Designed to replace the factory radiator coolant hose connector on compatible BMW applications.
• Restores Secure Cooling System Connections: Helps maintain a proper seal between coolant hoses and related cooling system components.
• Ideal Cooling System Repair Fitting: A smart replacement when repairing leaks, broken connectors, or aging plastic fittings.
• Helps Prevent Leaks and Overheating: Replacing worn connectors can help reduce the risk of coolant loss and temperature-related engine problems.
• OEM-Style Fitment: Built to match the original installation layout on compatible BMW applications.
• Reliable Preventative Maintenance Upgrade: A simple but important cooling system service part for aging BMW platforms.

FITMENT:

• BMW 3 Series – E46
• BMW X3 – E83 SUV
• BMW Z4 – E85 Roadster

Compatible with select BMW applications including 320i, 330i, X3, and Z4 models using this radiator coolant hose connector configuration. If you’re unsure whether this fitting matches your specific vehicle, please contact us with your VIN and we’ll be happy to verify compatibility before you order.

REPLACES PART NO.: 11534460438, 17127510952, 11531436406, 17127514404

Please refer to the “Fitment” section in the product description for compatibility details.