OEM BMW Cooling Systems Online

11531312287 - : Engine Coolant Thermostat Gasket for BMW Image

Engine Coolant Thermostat Gasket

M5.
$41.06
MSRP $42.66
Save $1.60
3.8% Off
11531265084 - : Engine Coolant Thermostat Gasket for BMW Image

Engine Coolant Thermostat Gasket

O-Ring. 525i,528i & 530i.
$7.63
MSRP $7.92
Save $0.29
3.7% Off
11427520214 - : Adapter With Thermostat C115040 for BMW Image

Adapter With Thermostat C115040

$235.75
MSRP $293.81
Save $58.06
19.8% Off
17208445610 - : Transmission Oil Thermostat 9100G82GT4 for BMW Image

Transmission Oil Thermostat 9100G82GT4

$262.92
MSRP $288.10
Save $25.18
8.7% Off
17128747913 - : Connector Hose for BMW Image

Connector Hose

4.4L, auxiliary, with M8. With M5. 4.4L, radiator, with M8.
Backordered
17127575427 - : Lower Hose for BMW Image

Lower Hose

Primary Radiator. 750i, 750Li, 750xi, 750lxi. 4.4L turbo, main, 2009-12. 4.4L turbo (n63t), radiator. 4.4L turbo, main, 2013-15. 4.4L,...
$84.54
MSRP $114.58
Save $30.04
26.2% Off
17128614881 - : Upper Hose for BMW Image

Upper Hose

3.0L, with awd. 3.0L turbo, rwd, without high speed sync. 3.0L, main. 3.0L turbo without hybrid. 535i GT xDrive.
$61.78
MSRP $79.71
Save $17.93
22.5% Off
32416774303 - : Return Hose for BMW Image

Return Hose

3 series. 2wd. With active steering, 128i. To reservoir. Sedan & wagon, with active steering, without turbo. With active steering, 328i.
Backordered
11537642854 - : Engine Coolant Thermostat Kit for BMW Image

Engine Coolant Thermostat Kit

$409.36
MSRP $603.24
Save $193.88
32.1% Off
11538671516 - : Engine Coolant Thermostat Kit for BMW Image

Engine Coolant Thermostat Kit

535i, 535xi. 3.0L turbo with hybrid. Hybrid 5. 640i xDrive. Incl.Housing and Thermostat. 535i GT, 535i GT xDrive.
$133.42
MSRP $194.95
Save $61.53
31.6% Off
11538671514 - : Engine Coolant Thermostat Kit for BMW Image

Engine Coolant Thermostat Kit

3.0L, main. 3.0L turbo. ActiveHybrid 7. Incl.Housing and Thermostat. 7 series. 740i. 640i xDrive.
$133.42
MSRP $194.95
Save $61.53
31.6% 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.