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BMW Cooling System Parts & Accessories

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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Behr Radiator - E36

T#:1196128

Part#: 17111723784

In Stock at Vendor

$ 298.35

This product was last offered at the strikethrough price on
07-15-2026

$ 275.98 USD

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$ 275.98 USD

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Brand new radiator equivalent to OE

BMW M Performance Hose From Radiator Bottom - E82 E92 E93 N54 1 M Cou...

T#:22536

Part#: 17127602294

Ships in 4 Business Days

10% off MSRP $ 194.99

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

$ 175.99 USD

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10% off MSRP

$ 194.99

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

$ 175.99 USD

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Genuine BMW Hose From Radiator Bottom - Thermostat
This item fits the following BMW Chassis:
E82 1M Coupe,E82,E92,E93

Fits BMW Engines including:
N54T

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Radiator

T#:591360

Part#: 17111728905

In Stock at Vendor

$ 399.99

This product was last offered at the strikethrough price on
05-07-2026

$ 388.99 USD

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$ 388.99 USD

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Behr Replacement Radiator - More than likely, you are going to replace the radiator in your vehicle at least once. The joints where the cores meet the end tanks tend to get weak and are the first place to spring a leak. Impacts to the fins themselves can cause holes to form. Corrosion and clogging from the inside can make cooling less than effective and compromise coolant flow.

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Hella Radiator - Manual - E34

T#:363371

Part#: 17111737760

In Stock at Vendor

$ 687.60 USD

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$ 687.60 USD

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Replace your leaking radiator

BMW M Performance Left Radiator - E82,E92,E93,E82 1M Coupe

T#:46042

Part#: 17117602241

Ships in 4 Business Days

11% off MSRP $ 315.99

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

$ 281.99 USD

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Qty

11% off MSRP

$ 315.99

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

$ 281.99 USD

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This radiator aids in the cooling of you N54 engine which is know for running on the hot side. This is perfect for cars that see track time and spirited driving.

Genuine BMW Left Radiator
This item fits the following BMW Chassis:
E82 1M Coupe,E82,E92,E93

Fits BMW Engines including:
N54

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Behr Radiator - E60, E61, E63, E64

T#:579569

Part#: 376755591

Back Ordered

$ 267.99 USD

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$ 267.99 USD

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Replace your leaking radiator

REMOTE RADIATOR

T#:33047035

Part#: 17117634565

In Stock at Vendor

$ 156.99

This product was last offered at the strikethrough price on
05-07-2026

$ 140.99 USD

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$ 140.99 USD

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E46 323/325/328/330 Manual, Z4 OEM Behr Radiator

T#:338021

Part#: 17119071518

In Stock at Vendor

Starting at $ 249.99 USD

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Starting at $ 249.99 USD

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This is a BEHR brand (OEM supplier to BMW) replacement radiator for all 1999-2006 E46 3 series (non-M), including 323i, 323Ci, 328i, 328Ci, 325i, 325Ci, 330i, 330Ci, and Z4 2.5 and 3.0. Compare to BMW list price of $318! Save big, while still getting the highest quality radiator available for your BMW.

This radiator fits the follow BMWs: :
Only for Manual Transmission
1999-5/2005 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi - Not for cars with M56 engine

2003-2006 E85 BMW Z4 2.5i Z4 3.0i - M54 engine
2006-2008 E85 BMW Z4 M Roadster M Coupe

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Behr Radiator Replacement

For Automatic Vehicles only

T#:591355

Part#: 17117519211

In Stock at Vendor

$ 454.11 USD

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$ 454.11 USD

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Replace your faulty or worn radiator with this factory replacement

Water Temperature Sensor

T#:596874

Part#: 12621288158

Ships in 1-2 days

$ 44.99 USD

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$ 44.99 USD

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M14x1.5 Thread. Your vehicle is equipped with numerous gauges to allow you to have a better idea of what is going on under the hood. By monitoring these gauges, you can prevent premature engine damage due to low oil pressure or high coolant temperatures. If one isn't functional though, you are in the dark as far as that system goes. One of the most vital is coolant temperature. Replace the sensor to get your gauge working properly again.

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Radiator

T#:594798

Part#: 17117576827

Ships in 1-2 days

$ 415.99 USD

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$ 415.99 USD

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Replacement Radiator from Behr Hella

BMW M Performance Cooling Kit - E8X E9X 135i 335i/xi N54 (03/2008+ w/...

T#:5214

Part#: 11122157665

Ships in 10 Business Days

2% off MSRP $ 1,880.00

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

$ 1,846.99 USD

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Qty

2% off MSRP

$ 1,880.00

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

$ 1,846.99 USD

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The N54 engine is prone to running hot. If you want to track your BMW, we highly recommend upgrading your cooling system. One great option is this BMW M Performance Cooling Kit for your 135i and 335i/xi. This kit includes a new fan and fan shroud, new cooling hoses, and an additional coolant radiator for increased cooling! Also included are all the necessary components for installation .

BMW Performance Power Kit
Fits BMW Engines including:
N54

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Radiator

T#:594800

Part#: 17117605644

Ships on Aug 6, 2026

$ 362.99 USD

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$ 362.99 USD

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Replacement Radiator from Behr

Radiator

T#:594801

Part#: 17117570094

Ships on Aug 6, 2026

$ 374.99 USD

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$ 374.99 USD

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More than likely, you are going to replace the radiator in your vehicle at least once. The joints at where the cores meet the ends tend to get weak and are the first place to spring a leak. Impacts to the fins themselves can cause holes to form. Corrosion and clogging from the inside can make it less than effective. Replace your leaking unit with a factory replacement and get that jug of coolant out of your back seat.

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M2CS Racing Hot Weather Upgrade Kit For M2 Competition

T#:6106387

Part#: 17108342846KT

Ships on Oct 16, 2026

$ 7,004.99 USD

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$ 7,004.99 USD

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This kit upgrades your M2 Competition cooling system to the one found in the M2 CS. This means larger auxiliary radiators and a more efficient cooling fan. Perfect for both street and track applications. This kit is also perfect for M2CS owners with any damaged components The kit comes with all pieces necessary for installation. No modification tot he body is required but the front bumper and headlights must be removed to install all components. Upgrade your M2 today with this direct fit kit offered through Turner Motorsport! Features: Front auxiliary radiators left and right with brackets New more powerful cooling fan (1000w vs 850w)

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Behr Radiator - E34

T#:1195792

Part#: 17111723467

Back Ordered

$ 273.99

This product was last offered at the strikethrough price on
05-07-2026

$ 265.99 USD

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$ 265.99 USD

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OE replacement radiator

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