BMW Cooling System Parts & Accessories for BMW 4 Series F36 (2015+)

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The cooling system is arguably the weakest point in numerous BMWs. If you drive an aging BMW or plan on taking your car to the track like we do, we recommend beefing up your cooling system before going to the track. Generally, the main components in your cooling system that are prone to failure include the following: expansion tank, factory hoses, water pump, thermostat, fan (especially if your vehicle comes factory with a clutch fan), and radiator. Factory BMW expansion tanks are plastic and prone to either breaking off at connection points or combusting. As factory rubber hoses age they either crack or break over time - we offer silicone cooling hose upgrades for most applications to avoid future failures. If you have an older vehicle, your water pump likely comes from the factory with a plastic impeller - we offer upgraded water pumps with metal impellers that are far more reliable. Newer model BMWs utilize electric water pumps - BMW spent millions of dollars engineering these water pumps, but they fail so often that we recommend replacing at 60,000 mile service intervals to avoid being stranded on the side of the road. In terms of thermostats, we offer various upgraded thermostats for racing applications. If your BMW utilizes a clutch fan from the factory, we have several options available in terms of universal electric fans - we recommend replacing these to avoid sending brittle plastic fan blades through your hood. For radiators, we recommend swapping out your radiator for one that does not use plastic connection points like your factory radiator.

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Genuine BMW Turbo Coolant Return Line - N20 F22/23 F3X F10 F25/26 F15/16
Genuine BMW Turbo Coolant Return Line - N20 F22/23 F3X F10 F25/26 F15...
Genuine BMW - Corporate Logo
T#:15180793
Part#: 11538853293
In Stock
Sale - Save 6% $ 132.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 125.45 USD
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$ 132.99

This product was last offered at the strikethrough price on
06-25-2026

$ 125.45 USD
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Replace your leaking coolant pipe to prevent further leaks and potentially catastrophic failure. Fits the following BMWs: F22/23 F3X F10 F25/26 F15/16 Fits the following engines: N20/26
Genuine BMW - Thermostat with housing and gasket - 11537644811
Genuine BMW - Thermostat with housing and gasket - 11537644811 ...
For vehicles with the Gen1 B48/B46 only - not compatible with the later Gen2 B48 (TU) engines
Genuine BMW - Corporate Logo
T#:539226
Part#: 11537644811
In Stock
Sale - Save 5% $ 544.99

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$ 517.48 USD
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$ 544.99

This product was last offered at the strikethrough price on
06-25-2026

$ 517.48 USD
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11537644811 - Thermostat with housing and gasket. The thermostat controls the flow of coolant based on temperatures in the engine. This is a crucial component to your cooling system and making sure your car is operating properly.
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Genuine BMW Auxiliary Water Pump
Genuine BMW Auxiliary Water Pump
Genuine BMW - Corporate Logo
T#:600633
Part#: 11518671654
In Stock
Sale - Save 5% $ 127.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 121.25 USD
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$ 127.99

This product was last offered at the strikethrough price on
06-25-2026

$ 121.25 USD
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Rein Aluminum Oil Filter Housing - BMW B58
Rein Aluminum Oil Filter Housing - BMW B58
Rein - Corporate Logo
T#:49404665
Part#: 11428583901
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$ 408.99 USD
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$ 408.99 USD
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For those who push their engines to the limit, "good enough" is a liability. Upgrade to the Rein HEU0116 Aluminum Oil Filter Housing—the professional’s choice for durability and peace of mind.
Rein Water Hose With Metal Flange - F-Chassis - N55
Rein Water Hose With Metal Flange - F-Chassis - N55
Rein - Corporate Logo
T#:53750147
Part#: CHU0632
In Stock at Vendor
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$ 52.99 USD
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$ 52.99 USD
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Heat cycles cause Cracking and Leaks on Rubber and Plastic Components. Replace Leaking Hose with this Part From Rein Featuring Upgraded Metal Flanges
Genuine BMW Lower Coolant Hose - F22 M235i/ix, F3X 335i/ix 435i/ix
Genuine BMW Lower Coolant Hose - F22 M235i/ix, F3X 335i/ix 435i/ix ...
Genuine BMW - Corporate Logo
T#:210156
Part#: 17127648644
Ships in 3 Business Days
Sale - Save 6% $ 83.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 79.37 USD
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$ 83.99

This product was last offered at the strikethrough price on
06-25-2026

$ 79.37 USD
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Replace your cracked or leaking radiator hose to prevent further leaks and potentially catastrophic failure.


This item fits the following BMW Chassis:
F22,F30,F32,F33,F34,F36

Fits BMW Engines including:
N55

 

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Hose - Radiator-Engine - F22, F23, F30, F31, F32, F33, F34, F36
Hose - Radiator-Engine - F22, F23, F30, F31, F32, F33, F34, F36 ...
Genuine BMW - Corporate Logo
T#:541451
Part#: 17128616528
In Stock
Sale - Save 6% $ 151.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 143.52 USD
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$ 151.99

This product was last offered at the strikethrough price on
06-15-2026

$ 143.52 USD
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Genuine BMW Radiator - Automatic Transmission - F22,F30,F31,F32,F33,F34,F36
Genuine BMW Radiator - Automatic Transmission - F22,F30,F31,F32,F33,F...
Genuine BMW - Corporate Logo
T#:384984
Part#: 17118672104
In Stock
Sale - Save 5% $ 528.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 502.20 USD
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Sale - Save 5%
$ 528.99

This product was last offered at the strikethrough price on
06-25-2026

$ 502.20 USD
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This is a Genuine BMW radiator for F30 F32 F33 F36 models with the N55 or N20 engine and automatic transmission or sport automatic transmission. 

When doing any sort of repair or maintenance there is no replacement for genuine factory parts. Turner Motorsport carries the Genuine BMW brand with pride and has the parts you need to complete your next project with confidence.

This item fits the following BMWs:
2014+  F22 BMW  228i xDrive 
2014+  F23 BMW  228i 228i xDrive M235i 
2012+  F30 BMW  320i 320i xDrive 328i 328i xDrive - Sedan - Only for N20 engine
2013+  F31 BMW  328i xDrive Wagon
2012+  F30 BMW  335i 335i xDrive - Sedan
2014+  F34 BMW  328i, 328i xDrive GT Gran Tourismo - Only for N20 engine
2014+  F34 BMW  335i xDrive GT - Gran Tourismo
2013+  F32 BMW  428i 428i xDrive - Coupe - Only for N20 engine
2013+  F32 BMW  435i 435i xDrive - Coupe
2013+  F33 BMW  428i Convertible 428i xDrive Convertible- Only for N20 engine 
2013+  F33 BMW  435i Convertible 435i xDrive Convertible
2014+  F36 BMW  428i Gran Coupe 428i xDrive Gran Coupe - Only for N20 engine 
2014+  F36 BMW  435i Gran Coupe,435i xDrive Gran Coupe
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Rein Engine Inlet To Changeover Valve Hose
Rein Engine Inlet To Changeover Valve Hose
Rein - Corporate Logo
T#:52903280
Part#: 17128616914
In Stock
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$ 45.99 USD
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$ 45.99 USD
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This Rein Automotive coolant hose is an exact-fit aftermarket solution for the BMW "By-Pass Hose".
Rein Coolant Hose Supply Elbow - F22 F23 F30 F32 F33 F36 F87 - N55
Rein Coolant Hose Supply Elbow - F22 F23 F30 F32 F33 F36 F87 - N55 ...
Rein - Corporate Logo
T#:53820908
Part#: CHE0985
Ships in 4 Business Days
New Item
$ 73.99

This product was last offered at the strikethrough price on
07-09-2026

$ 25.99 USD
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$ 25.99 USD
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The Rein coolant hose elbow is a targeted engineering solution designed to bypass the flaws of the factory assembly. By isolating the failure prone rubber section, it allows for replacement without disturbing the exhaust manifold or cylinder head connections. This is the strategic choice for teams and technicians who prioritize rapid turnaround and system integrity.
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Rein Water Hose Problem Solver Kit - F chassis N55
Rein Water Hose Problem Solver Kit - F chassis N55
For Manual Transmission Only
Rein - Corporate Logo
T#:53750119
Part#: 11537598237
Ships in 4 Business Days
New Item
$ 26.99 USD
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$ 26.99 USD
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Rein's Rubber Elbow Problem Solver Kit for the Coolant Feed Hose Replaces the Rubber End of the Hard Feed Line Without Having to Move the Exhaust or Replace the Entire Hard Line
Rein Thermostat Assembly - F Chassis, G-Chassis - B48
Rein Thermostat Assembly - F Chassis, G-Chassis - B48
Rein - Corporate Logo
T#:53891628
Part#: 11537644811
Ships in 4 Business Days
New Item
$ 322.99

This product was last offered at the strikethrough price on
06-10-2026

$ 288.99 USD
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$ 288.99 USD
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Whether you're managing a fleet of "spirited" daily drivers or prepping a chassis for the circuit, the Rein CTA0079 offers the peace of mind that comes with OE-quality engineering.
Rein Thermostat Assembly - F22 F87 F23 F30 F34 F32 F33 F36 F15 F16 - N55
Rein Thermostat Assembly - F22 F87 F23 F30 F34 F32 F33 F36 F15 F16 - ...
Rein - Corporate Logo
T#:55965849
Part#: 11537598865
Ships in 4 Business Days
New Item
$ 75.99 USD
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$ 75.99 USD
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A malfunctioning or lazy thermostat can lead to poor fuel trim efficiency, sluggish performance, and destructive overheating. This Rein thermostat assembly is engineered as a robust direct replacement for your worn factory unit, ensuring proper coolant regulation through the radiator under heavy loads.
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Hose F Engine Inlet-Changeover Valve - F22, F23, F30, F31, F32, F33, F34, F36
Hose F Engine Inlet-Changeover Valve - F22, F23, F30, F31, F32, F33, ...
Genuine BMW - Corporate Logo
T#:56110319
Part#: 17125B3AE07
In Stock
New Item
6% off MSRP $ 104.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 98.99 USD
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6% off MSRP
$ 104.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 98.99 USD
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