BMW E38/E39/E46 Cooling System Return Pipe Hose – OEM Coolant Hose Replacement, Restores Coolant Flow & Cooling Reliability | Replaces Part No. 11532247681

Maintain proper coolant circulation and restore cooling system efficiency with this OEM-style Cooling System Return Pipe Hose replacement for select BMW E38, E39, and E46 models equipped with the M57 diesel engine. Designed to replace the factory coolant return line, this hose plays an important role in routing coolant through the engine and radiator system so the vehicle can maintain stable operating temperature and dependable cooling performance.

Over time, factory coolant hoses and return pipes are exposed to constant heat cycles, pressure changes, and long-term coolant exposure. As they age, the material can become brittle, crack, leak, or deteriorate, which may lead to coolant loss, reduced cooling performance, warning lights, and potentially expensive engine damage if left unaddressed. Replacing aging coolant return hoses before they fail is an important preventative maintenance step for preserving cooling system reliability.

Manufactured from durable automotive-grade materials, this replacement coolant return hose is built to withstand demanding engine bay temperatures and cooling system pressures. The precision-molded construction helps ensure OEM-style fitment and secure connections for dependable, leak-resistant performance.

Whether you are replacing a damaged coolant line, repairing a leak, or refreshing the cooling system as preventative maintenance, this direct-fit replacement helps restore factory cooling system operation and long-term dependability without requiring modifications.

Key Features:

• Direct OEM Replacement: Designed to replace the factory cooling system return pipe hose on compatible BMW applications.
• Restores Proper Coolant Circulation: Helps maintain stable coolant flow and proper cooling system efficiency.
• Helps Prevent Leaks and Overheating: Replacing a worn return hose can help reduce the risk of coolant loss and temperature-related engine issues.
• Supports Stable Engine Operating Temperatures: Helps the cooling system function properly under normal and demanding driving conditions.
• High-Temperature and Pressure-Resistant Construction: Built to withstand repeated heat cycles and cooling system pressure.
• Precision-Molded OEM-Style Fitment: Designed to match the original routing and installation layout for secure fitment.
• Durable Automotive-Grade Materials: Built for dependable long-term service life in the engine bay.
• Ideal for Repairs and Preventative Maintenance: A smart replacement when refreshing aging cooling system components.
• Leak-Resistant Design: Helps provide secure sealing and reliable cooling system performance.

FITMENT:

• BMW 3 Series – E46 Sedan, Touring: Compatible with 330d Sedan and 330d Touring models.
• BMW 5 Series – E39 Sedan, Touring: Compatible with 525d Sedan, 525d Touring, 530d Sedan, and 530d Touring models.
• BMW 7 Series – E38 Sedan: Compatible with 730d Sedan models.

Engine compatibility: M57 diesel engines.

If you’re unsure whether this cooling system return 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.: 11532247681

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