OEM BMW Cooling Systems Online

17127612445 - : Lower Hose for BMW Image

Lower Hose

Z4. Manual trans, with turbo, 2.0l. Primary Radiator.
$84.54
MSRP $114.58
Save $30.04
26.2% Off
17128602649 - : Upper Hose for BMW Image

Upper Hose

540i, 540i xDrive. Primary. 3.0L. Outer radiator, rear. Charge Air Cooling. Cooler to Connector. Inlet. From Radiator Coolant Hose.
$88.76
MSRP $120.31
Save $31.55
26.2% Off
32416750282 - : Return Hose for BMW Image

Return Hose

To Reservoir.
$398.30
MSRP $479.48
Save $81.18
16.9% Off
17125A024A3 - : Upper Hose for BMW Image

Upper Hose

2.0L. Primary Radiator. Radiator. 430i xDrive. High temp. All. 330i.
Backordered
17125A3B5B0 - : Upper Hose for BMW Image

Upper Hose

3.0L, 2025-26. Without M4, main. Radiator. M440i xDrive. High temp. M340i.
Backordered
32416783801 - : Return Hose for BMW Image

Return Hose

3 series. Awd. With servotronic. 128i. Without active steering. Cooler to reservoir. From 12/10.
$117.74
MSRP $141.34
Save $23.60
16.7% Off
17127619256 - : Lower Hose for BMW Image

Lower Hose

4 series. With sport line. 2014-16, with high speed synchronisation, with dual coolers. 320i. M Sport Package. Primary Radiator....
$113.95
MSRP $154.45
Save $40.50
26.2% Off
32416792492 - : Return Hose for BMW Image

Return Hose

X6. Xdrive50i. With adaptive drive. X5. 4.4l. Without active steering. M. Exc.Active Steering. To Reservoir.
$87.26
MSRP $104.76
Save $17.50
16.7% Off
32416774305 - : Return Hose for BMW Image

Return Hose

3 series. Awd. Without servotronic. Without active steering, without M3, without turbo. To 12/10. Without active steering, 128i. To...
$117.74
MSRP $141.34
Save $23.60
16.7% Off
17128679008 - : Lower Hose for BMW Image

Lower Hose

4.4L, auxiliary, without M8, with motorsport pkg. Auxiliary Radiator. Engine Cooling. Assembly.
$142.14
MSRP $194.29
Save $52.15
26.8% Off
32416792493 - : Return Hose for BMW Image

Return Hose

X6. Without dynamic drive. X5. 4.4l. Without m model. Xdrive50i. Without adaptive drive. From 4/09. 4.4L, with adaptive drive. Active...
Backordered
32412283898 - : Return Hose for BMW Image

Return Hose

M series. To Reservoir. Without active steering, with M3.
$278.79
MSRP $340.40
Save $61.61
18.1% Off

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Keeping your BMW Cooling System in top condition

Engines generate a lot of heat while running, and a properly functioning cooling system keeps everything at safe temperatures. Drivers rely on these systems to prevent overheating that can cause serious damage. Regular inspection and maintenance are essential to catch issues early. At BMW Auto Parts Online, we provide genuine BMW replacements that maintain your car’s performance and reliability.

How cooling systems work

The cooling system circulates coolant through the engine and radiator to absorb and release heat. Components like the water pump, thermostat, and radiator work together to maintain consistent engine temperatures. A well-maintained cooling system ensures the engine runs efficiently, avoids overheating, and supports long-term reliability. Related parts, such as the radiator hose, also play a role in keeping coolant moving smoothly.

Why cooling systems fail

Over time, components can wear out or become clogged. Leaks in hoses, a failing water pump, or a stuck thermostat can lead to overheating. Contaminated or old coolant can corrode metal surfaces and damage seals. Recognizing signs like temperature spikes, coolant leaks, or unusual noises can help prevent costly repairs.

When to replace parts

Replacement intervals depend on vehicle age, mileage, and driving conditions. Genuine BMW parts provide precision fit and durability that aftermarket options often cannot match. Popular models such as the BMW 5 Series and BMW X5 benefit from OEM cooling system replacements, ensuring consistent performance and longer lifespan. Regular maintenance and timely replacement keep the engine safe and reliable.

Maintaining a BMW’s cooling system protects the engine and supports smooth performance on every drive. Choosing genuine BMW parts from BMW Auto Parts Online guarantees quality and compatibility. Staying on top of maintenance prevents unexpected failures and keeps the vehicle running as intended. Investing in authentic components ensures peace of mind for years of dependable driving.