BMW Cooling System Parts & Accessories for BMW 4 Series F33 (2014+)

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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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Precision Raceworks Coolant Cap Bundle - Black - Most BMWs from 2016 ...
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Precision Raceworks - Corporate Logo
T#:47679257
Part#: 622-0291-BLAK
Ships in 10 Business Days
$ 184.99 USD
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$ 184.99 USD
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The Precision Raceworks Billet Coolant Cap Set is a functional and stunningly stylish way to add a nice touch to any engine bay! These caps come in three color options, so there is always a color that will work for you! Black with Billet Silver, Black with Blue, and the Stealth series (all black). Many people don't realize it, but the OEM caps have a pressure release valve built into them. Oftentimes, aftermarket companies don't know this either or just don't care. But our team cares about proper function just as much as we care about the appearance of every product we design. For pressure relief, our caps incorporate the OEM internals, so you get all the functionality of the original caps, ensuring a safe and reliable system in place. These caps offer superior style and performance-grade components that guarantee a reliable fit every time. Durable billet aluminum construction provides long-lasting protection and dependability that will upgrade your engine bay for years to come. PLEASE NOTE: These do require assembly and swapping the pressure relief valves from your old caps to your new billet caps.
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Anti-Freeze Tester
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CTA Tools - Corporate Logo
T#:641679
Part#: CTAA195
Ships on Jul 27, 2026
$ 9.98 USD
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Tests all ethylene glycol solutions with radiator hot or cold
OEM Elring Water Pump Gasket - BMW Gen1 B46/B48 2.0L
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Elring - Corporate Logo
T#:45483624
Part#: B07.530
Ships on Jul 24, 2026
$ 7.99 USD
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$ 7.99 USD
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If your water pump has to be removed or is already leaking coolant, it is important to replace the gaskets to prevent coolant loss and overheating.

Elring Engine Block Water Pump Gasket - BMW F22/23 F3X G30 G01 G02 B5...
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Elring - Corporate Logo
T#:45483627
Part#: 773.780
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$ 12.99 USD
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$ 12.99 USD
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This gasket seals the connection between the mechanical water pump support bracket and the engine block. Replaces BMW # 11518632586

2 Pin Connector
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ECS - Corporate Logo
T#:33412932
Part#: 61132359999
Ships on Jul 28, 2026
Sale - Save 25% $ 10.99

This product was last offered at the strikethrough price on
06-14-2026

$ 8.24 USD
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Sale - Save 25%
$ 10.99

This product was last offered at the strikethrough price on
06-14-2026

$ 8.24 USD
Free Shipping on orders $49 and up

Includes connector housing with terminals and seals. Commonly used for the coolant level sensor.

ECS Tuning replacement harness connectors include all necessary pins and wire seals for a complete harness repair. Whether you have a broken harness connector or need a complete wiring repair, we have the components you need.

Each connector includes an additional terminal in case one becomes lost or damaged during installation.

*OEM cross reference PN# 61132359999 - Commonly used for the coolant level sensor.

Please reference the original part number from the existing connector to confirm fitment, before ordering.

Suggested tools:

Suggested crimping pliers: T#387193
Wire De-pin tools:
12pc De-Pin Tool Set - T#386379
23pc De-Pin Tool Set - T#641943

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Coolant Hose - Lower
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Bremmen Parts - Corporate Logo
T#:48125816
Part#: 17127596838
Ships on Aug 10, 2026
Sale - Save 15% $ 30.99

This product was last offered at the strikethrough price on
05-03-2026

$ 26.34 USD
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Sale - Save 15%
$ 30.99

This product was last offered at the strikethrough price on
05-03-2026

$ 26.34 USD
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Connects the radiator to the thermostat.

Maintain optimal cooling performance with this high-quality Lower Radiator Hose (17127596838), built to match OEM dimensions for a seamless fit on your BMW. Designed to handle high heat and constant pressure, it ensures consistent coolant flow from the radiator to the thermostat housing. Perfect for preventative maintenance or replacing a failing hose, this direct-fit component helps safeguard your engine from overheating and keeps your cooling system operating at peak efficiency.

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BMW water pump
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Febi - Corporate Logo
T#:38385338
Part#: 11517596763
Special Order: No Guaranteed ETA
$ 1,067.99 USD
$ 1,067.99 USD
If your water pump is failing, you may notice coolant leaks or hear a whining noise from under the hood. However, with an electric water pump, failure can sometimes go unnoticed until overheating occurs. Watch for warning signs and replace your water pump promptly to avoid engine damage. For vehicles without the M Sport package.
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VEMO Electric Radiator Fan & Shroud - 600W - BMW F22/23 F3X
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Vemo - Corporate Logo
T#:41052829
Part#: 17428641964
Special Order: No Guaranteed ETA
$ 407.99

This product was last offered at the strikethrough price on
01-29-2026

$ 388.99 USD
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$ 388.99 USD
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The auxiliary fan in your vehicle serves an extremely important role. When your car reaches temperatures that may be hazardous to your engine, the auxiliary fan moves air through the radiator to provide better cooling. Usually activated during times of stationary vehicle operation, it supplements the air usually driven through the radiator by driving down the road. If your vehicle is getting too hot during traffic or at stop lights, your auxiliary fans are probably faulty. Replace yours to restore the factory cooling in your vehicle and prevent catastrophic damage to your engine. Even if your fans are still operational but the blades are damaged or cracked, replacement is the only solution.
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Radiator Fan - F3x N20
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Meyle - Corporate Logo
T#:54852035
Part#: 17428641963
Special Order: No Guaranteed ETA
New Item
$ 531.99 USD
$ 531.99 USD
Engine bay radiator fan shroud assembly for N20 F22/F30 platforms.

Meyle Thermostat Housing - BMW E84, F10, F22, F26, F30, F31, F32, F33...
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Meyle - Corporate Logo
T#:5704976
Part#: 11538635689
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$ 72.99 USD
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When it comes to your temperature gauge on your instrument cluster your thermostat plays a large role in where that temperature needle ends up. There are many cases where the vehicle will run a bit cool according to that gauge, oftentimes meaning the thermostat has failed and is stuck open allowing coolant to continuously circulate. The other more damaging side is when it closes shut and keeps the engine from cooling down properly. All vehicles are designed to operate in an ideal temperature range for the ultimate efficiency, life, and performance.
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Meyle Charge Air Cooler Expansion Tank - F22, F23, F30, F31, F32, F33...
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Meyle - Corporate Logo
T#:40714794
Part#: 17138617045
Special Order: No Guaranteed ETA
$ 72.99 USD
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Keep your turbocharged BMW operating at its best with the Meyle Charge Air Cooler Expansion Tank 314 223 0025.
Coolant Expansion Tank Cap
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Meistersatz - Corporate Logo
T#:379621
Part#: 17117639020
Ships in 4 Business Days
$ 17.99 USD
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Quality aftermarket coolant expansion tank cap.


Wagner Tuning Performance Heat Exchanger - Black - BMW F-Chassis B48 ...
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Wagner Tuning - Corporate Logo
T#:1017107
Part#: 400001002
Back Ordered
Sale - Save 10% $ 1,250.00

This product was last offered at the strikethrough price on
07-06-2026

$ 1,125.00 USD
Sale - Save 10%
$ 1,250.00

This product was last offered at the strikethrough price on
07-06-2026

$ 1,125.00 USD
The 2.0 Liter B48B20 and 3.0 Liter B58B30M0 turbo engine of the specified BMW models is equipped with an indirect charge-air cooling circuit. So the cooling of the charged air is not realized by the ambient air as a cooling medium (as usual), but made with its own cooling water circuit. A reduction of the temperature of the cooling water is directly equated with an improved cooling performance of the charged air. This is exactly where the advantages of the WAGNERTUNING upgrade radiator comes into play. The newly developed competition racing core of the WAGNERTUNING high-performance radiator increase the radiator volume of the OEM water cooler by a total of 117 %. The calculated ratio between the inner and outer cooling surface generates a maximum heat transfer and allows at the same time enough airflow for the surrounding components (for example the engine radiator) for its own heat exchange. Furthermore, using an increased amount of cooling water, the entire system thermics can be kept at a lower level over a longer period of time. All WAGNERTUNING radiators are equipped with a heat-conductive anti-corrosion coating to ensure a lasting cooling effect. The plug & play installation of the system is simple and easy to perform (an installation instruction is included as well). Dimensions OEM radiator: 576 mm x 495 mm x 27 mm V = 7,70 Liter A = 2851 cm² Dimensions WT radiator: 524 mm x 468 mm x 68 mm V = 16,70 Liter A = 2454 cm²
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URO Parts Expansion Tank - 17138677649
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URO - Corporate Logo
T#:29002185
Part#: 17138677649
In Stock
$ 87.99 USD
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Expansion tanks are susceptible to damage due to constant exposure to high ambient temperatures and chemical degradation. If your expansion tank is cracked, replacing it is crucial to prevent catastrophic engine damage from overheating.

Features:

Guaranteed fitment Precision-molded to OE dimensions for compatibility with original sensors and connections Quality materials resist engine heat and harsh cooling system environments Factory pressure-tested 24-Month Unlimited Mileage Warranty URO Parts offers more than 8,000 high-quality spare parts, many of which are specifically designed to replace factory BMW components. Their business was founded on the premise of producing parts that adhere to the highest standards of precision, materials, and workmanship. Each part is closely evaluated by a team of industry professionals to determine how to offer the best blend of durability, function, and price. If you're looking for quality replacement components at a reasonable price, look no further than URO Parts.

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URO Coolant Bypass Hose - B48
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URO - Corporate Logo
T#:54851970
Part#: 17128616914
Back Ordered
New Item
$ 44.99 USD
$ 44.99 USD
On the street or at the track, your cooling system is under constant attack from extreme heat, pressure, and vibration. If your factory bypass hose is looking soft or crusty, it's a ticking time bomb. This heavy-duty replacement hose is engineered to restore factory-level reliability with track-ready durability.
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Rein Turbo Coolant Hose - F22/23, F30/34, F32/33, F36, G01, G02, G11,...
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Rein - Corporate Logo
T#:53856297
Part#: 11538611277
Back Ordered
New Item
$ 44.99 USD
$ 44.99 USD
Rein Automotive Turbo Hoses are engineered to meet these rigorous standards, utilizing premium, OE-quality materials specifically formulated to withstand the extreme duty cycles of modern forced-induction systems.
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