OEM BMW Cooling Systems Online

17125A3B5D4 - : By-Pass Hose for BMW Image

By-Pass Hose

Without M4, main. 3.0L, 2025-26, upper. Auxiliary Radiator. Center. M440i xDrive. Low temp. M340i.
Backordered
11537519494 - : Inlet Hose for BMW Image

Inlet Hose

2.5 & 3.0L without turbo, 2006-10. 2.5, 3.0L, 2006-08. Engine Oil Cooling.
$64.23
MSRP $80.29
Save $16.06
20% Off
17127600836 - : Upper Hose for BMW Image

Upper Hose

3.0L turbo without hybrid. 3.0L, main. 740i. To 07/2013. Left. Auxiliary Radiator. Engine Cooling.
$79.72
MSRP $99.65
Save $19.93
20% Off
17227604291 - : Upper Return Hose O-Ring for BMW Image

Upper Return Hose O-Ring

Oil Cooler Line. 6.0L turbo. 2.0L, high voltage battery.
$6.80
MSRP $8.50
Save $1.70
20% Off
11531437493 - : Water Manifold for BMW Image

Water Manifold

4.4L, 1999-01. 4.4, 4.6 & 4.8L. 540i 1999-03.
Backordered
17128614882 - : Lower Hose for BMW Image

Lower Hose

3.0L turbo with hybrid, main cooling. Auxiliary Radiator. ATF Cooling. Cooler to Primary Radiator. Hybrid 5. From 07/2013.
$71.74
MSRP $89.68
Save $17.94
20% Off
64219119155 - : HVAC Heater Hose for BMW Image

HVAC Heater Hose

Inlet. From Auxiliary Water Pump.
$41.98
MSRP $52.47
Save $10.49
20% Off
64216910759 - : HVAC Heater Hose for BMW Image

HVAC Heater Hose

High Output Heater. Outlet. Heater to Engine #2.
Backordered
64212229843 - : HVAC Heater Hose for BMW Image

HVAC Heater Hose

Heater Core to Engine.
Backordered
64219208184 - : HVAC Heater Hose for BMW Image

HVAC Heater Hose

Outlet.
$52.99
MSRP $66.24
Save $13.25
20% Off
64219329649 - : HVAC Heater Hose for BMW Image

HVAC Heater Hose

Outlet.
$52.99
MSRP $66.24
Save $13.25
20% 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.