BMW G20/G22/G26/G28 Upper Radiator Coolant Hose – OEM Cooling System Replacement, Restores Cooling System Performance for 320i, 330i & 430i Models | Replaces Part No. 17128654823

Restore proper coolant flow and dependable engine cooling performance with this OEM replacement Upper Radiator Coolant Hose for select BMW G-Series models. Designed to replace the factory upper hose assembly, this component helps maintain stable coolant circulation and proper engine operating temperature under daily driving and more demanding conditions.

As modern BMW cooling systems age, original coolant hoses are exposed to constant heat cycles, pressure fluctuations, and long-term coolant contact. Over time, that wear can cause the hose material and connection points to weaken, harden, swell, or crack, eventually leading to coolant leaks, pressure loss, and overheating concerns. Replacing worn coolant hoses before they fail is an important preventative maintenance step that helps protect the engine and preserve long-term cooling system reliability.

This replacement hose is designed to restore the original routing and function of the factory unit, making it a dependable solution whether you are repairing a coolant leak, refreshing an aging cooling system, or replacing original hoses during preventative maintenance. It helps restore confidence in the cooling system while keeping your BMW operating the way it should.

Built for OEM-style fitment, this hose is designed to integrate cleanly with the factory cooling system on compatible G20, G22, G26, and G28 applications. It is an ideal replacement for owners looking to maintain proper coolant flow, dependable sealing, and long service life in a critical part of the engine bay.

Key Features:

• Direct OEM Replacement: Designed to replace the factory upper radiator coolant hose on compatible BMW G-Series models.
• Restores Proper Coolant Flow: Helps maintain stable coolant circulation and proper engine operating temperature.
• Supports Cooling System Reliability: A smart replacement when addressing coolant leaks, aging hoses, or preventative maintenance.
• Helps Prevent Leaks and Overheating: Replacing worn hoses can help reduce the risk of coolant loss and temperature-related engine issues.
• OEM-Style Fitment: Built to match the original hose routing and installation layout on compatible BMW applications.
• Durable Automotive-Grade Construction: Designed to withstand repeated heat cycles, coolant pressure, and long-term engine bay exposure.

FITMENT:

• BMW 3 Series – G20 Sedan
• BMW 4 Series – G22 Coupe
• BMW 4 Series – G26 Gran Coupe
• BMW 3 Series – G28 LWB Sedan

Compatible with select BMW applications including 320i, 330i, and 430i models using this upper radiator coolant hose configuration. If you’re unsure whether this hose fits your specific vehicle, please contact us with your VIN and we’ll be happy to verify compatibility before you order.

REPLACES PART NO.: 17128654823

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