BMW Cooling System Parts & Accessories for BMW X Series F26 (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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HEPU Water Pump - BMW N20 2.0L
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Hepu - Corporate Logo
T#:16707428
Part#: 11518635089
In Stock at Vendor
$ 1,123.99

This product was last offered at the strikethrough price on
05-08-2026

$ 1,091.99 USD
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$ 1,091.99 USD
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If your water pump is starting to fail, you may notice coolant leaks, or even hear a whining noise coming from under the hood. If you think your water pump is starting to fail, replace it as soon as you can. The main downside to an electric water pump is you may also notice nothing - nothing but overheating! Keep your eyes peeled for warning signs it may be time to replace your water pump. Aluminum mounting bolts are one-time use.
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Coolant Hose - F25, F26
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Genuine BMW - Corporate Logo
T#:46408
Part#: 17127646151
Ships in 3 Business Days
6% off MSRP $ 114.99

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

$ 107.99 USD
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6% off MSRP
$ 114.99

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

$ 107.99 USD
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Genuine BMW Coolant Hose -
This item fits the following BMW Chassis:
F25 X3,F26 X4

Fits BMW Engines including:
N55

Genuine BMW Front air duct - F25 F26
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Genuine BMW - Corporate Logo
T#:119047
Part#: 51747210476
Ships in 3 Business Days
5% off MSRP $ 438.99

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

$ 418.99 USD
5% off MSRP
$ 438.99

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

$ 418.99 USD


Genuine BMW Air Duct -
This item fits the following BMW Chassis:
F25 X3,F26 X4


Genuine BMW Coolant Hose - 17127639213 - F25,F26
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Genuine BMW - Corporate Logo
T#:174468
Part#: 17127639213
Ships in 4 Business Days
6% off MSRP $ 114.99

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

$ 107.99 USD
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6% off MSRP
$ 114.99

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

$ 107.99 USD
Free Shipping


Genuine BMW Coolant Hose -
This item fits the following BMW Chassis:
F25 X3,F26 X4

Fits BMW Engines including:
N20


Genuine BMW Radiator - 17118623369 - F25,F26
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Genuine BMW - Corporate Logo
T#:189659
Part#: 17118623369
Ships in 3 Business Days
9% off MSRP $ 585.99

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

$ 535.99 USD
9% off MSRP
$ 585.99

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

$ 535.99 USD


Genuine BMW Radiator -
This item fits the following BMW Chassis:
F25 X3,F26 X4

Fits BMW Engines including:
N20,N55

Hose Clamp 2 5/16" - 3 1/4" - priced each
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ECS - Corporate Logo
T#:376806
Part#: 54155K23
Ships in 1-2 days
$ 4.99 USD
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Hose Clamp 2 5/16" - 3 1/4"

Ensure secure hose connections with the Hose Clamp 2 5/16" - 3 1/4", a versatile and reliable solution for various applications. Crafted from durable materials, this clamp offers superior strength and corrosion resistance. Its adjustable design allows for a snug fit, reducing the risk of leaks and ensuring optimal performance. Upgrade your hose connections with the precision and reliability of the Hose Clamp 2 5/16" - 3 1/4".

  • Versatile and reliable solution for various applications
  • Superior strength and corrosion resistance
  • Adjustable design for a snug fit
  • Reduces risk of leaks for optimal performance
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Engine Cooling Fan Assembly - F25, F26
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Genuine BMW - Corporate Logo
T#:47106
Part#: 17427560877
Ships in 3 Business Days
6% off MSRP $ 1,083.99

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

$ 1,017.99 USD
6% off MSRP
$ 1,083.99

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

$ 1,017.99 USD


Genuine BMW Fan Housing With Fan - 600W
This item fits the following BMW Chassis:
F25 X3,F26 X4

Fits BMW Engines including:
N55

Lower Radiator Coolant Hose
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Rein - Corporate Logo
T#:594374
Part#: 17127639213
Ships in 1-2 days
$ 36.29 USD
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Replacement Lower Radiator Coolant Hose from Rein

Genuine BMW Radiator Hose - Engine to Radiator - F26 F25
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Genuine BMW - Corporate Logo
T#:174470
Part#: 17127646155
Ships in 3 Business Days
6% off MSRP $ 114.99

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

$ 107.99 USD
Free Shipping
6% off MSRP
$ 114.99

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

$ 107.99 USD
Free Shipping


Genuine BMW Coolant Hose -
This item fits the following BMW Chassis:
F25 X3,F26 X4

Fits BMW Engines including:
N20


Genuine BMW Coolant feed line - F25 xDrive35i F26 X4 xDrive35i ...
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Genuine BMW - Corporate Logo
T#:545298
Part#: 11537587514
Ships in 6 Business Days
5% off MSRP $ 283.99

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

$ 270.99 USD
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5% off MSRP
$ 283.99

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

$ 270.99 USD
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O-RING
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Victor Reinz - Corporate Logo
T#:580584
Part#: C32348
In Stock
$ 3.99

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

$ 2.99 USD
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$ 2.99 USD
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BMW Silver Engine Coolant Reservoir Cap
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Precision Raceworks - Corporate Logo
T#:38161691
Part#: 201-0393-SIL
Ships in 9 Business Days
$ 115.99

This product was last offered at the strikethrough price on
01-22-2026

$ 109.99 USD
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$ 109.99 USD
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BMW Silver Engine Coolant Reservoir Cap is a premium upgrade for BMW owners looking to enhance both the performance and appearance of their engine bay. Crafted from high-strength billet aluminum, this cap replaces the factory plastic version, offering superior durability and a refined, professional look.

Designed with functionality in mind, it integrates the OEM pressure relief system to ensure your engine's cooling system remains safe and efficient. Unlike adhesive covers, which can peel or wear over time, this cap is a direct-fit replacement, providing a secure and leak-proof seal. The silver anodized finish not only enhances the visual appeal but also ensures resistance to corrosion, high temperatures, and wear, making it perfect for daily driving and track use.

  • OEM pressure relief integration – Maintains proper cooling system performance and reliability
  • Durable billet aluminum – Outperforms factory plastic caps in longevity and strength
  • Precision-machined for perfect fitment – Replaces the stock cap securely, not just a cover
  • Anodized silver finish – Offers corrosion, heat, and wear resistance
  • Elevates engine bay aesthetics – Adds a clean, professional appearance
  • Built for both street and track use – Designed to withstand extreme conditions

Enhance your BMW’s cooling system with the BMW Silver Engine Coolant Reservoir Cap, providing both style and functionality for years to come.

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Anti-Freeze Tester
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CTA Tools - Corporate Logo
T#:641679
Part#: CTAA195
Ships on Jul 24, 2026
$ 9.98 USD
Free Shipping on orders $49 and up
Tests all ethylene glycol solutions with radiator hot or cold
Water Pump Service Kit
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2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Rein - Corporate Logo
T#:38161728
Part#: 11515A05704
Ships on Jul 24, 2026
$ 749.99 USD
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BMW N54 N55 Water Pump
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Gates - Corporate Logo
T#:592891
Part#: 11517563659
Ships on Jul 27, 2026
$ 759.99 USD
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$ 759.99 USD
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BMW N54 N55 Water Pump ensures reliable cooling performance for your BMW's engine. This high-quality water pump is designed for late-model N54 and N55 engines, offering enhanced reliability and ease of service. Unlike older models, it does not require a gasket or o-ring, simplifying installation and maintenance. Replacing worn water pumps during routine cooling system services is crucial for maintaining optimal engine performance and preventing overheating issues.

  • Enhanced reliability for peace of mind
  • Easy installation and serviceability
  • No need for gasket or o-ring
  • Maintains optimal engine cooling efficiency
  • Designed specifically for BMW N54 and N55 engines

Ensure your BMW's engine stays cool and performs efficiently with the BMW N54 N55 Water Pump.

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Thermostat Housing
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Bremmen Parts - Corporate Logo
T#:15511821
Part#: 11537586784
Special Order: No Guaranteed ETA
Sale - Save 3% $ 79.99

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

$ 77.59 USD
Free Shipping on orders $49 and up
Sale - Save 3%
$ 79.99

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

$ 77.59 USD
Free Shipping on orders $49 and up
If your vehicle is experiencing cooling issues, chances are the thermostat is the cause. Common symptoms include prolonged warm-up at highway speeds from the thermostat being stuck open, or consistent overheating issues from the thermostat being stuck in the closed position. Either condition can result in poor performance, and potential damage to vital components in your vehicle.
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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
Free Shipping on orders $49 and up
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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Meyle Thermostat Housing - BMW E84, F10, F22, F26, F30, F31, F32, F33...
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Meyle - Corporate Logo
T#:5704976
Part#: 11538635689
Special Order: No Guaranteed ETA
$ 72.99 USD
Free Shipping on orders $49 and up
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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INA Water Pump for E60 , E71 and F10
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Ina - Corporate Logo
T#:36574507
Part#: 11517632426
Back Ordered
$ 691.99 USD
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This premium replacement water pump is engineered to OE specifications for performance, reliability, and longevity, making it an essential component for maintaining optimal engine temperatures
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.

OEM Rein Coolant Expansion Tank Overflow Hose - BMW F25 X3, F26 X4 N5...
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Rein - Corporate Logo
T#:45757476
Part#: 17128651298
Back Ordered
$ 31.99 USD
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This hose connects the expansion tank to the upper radiator hose. If your coolant expansion tank hose is cracked or leaking, replace it early to prevent further coolant loss and eventual overheating.

Febi Radiator Hose
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Febi - Corporate Logo
T#:38553906
Part#: 17127601855
Special Order: No Guaranteed ETA
$ 45.99 USD
$ 45.99 USD
Maintain efficient coolant flow and regulate engine temperature with the Radiator Hose - Engine to Radiator. This critical component connects your engine to the radiator, ensuring proper heat dissipation and preventing engine overheating. Crafted from durable materials, it's built to withstand high temperatures and pressures for reliable long-term performance. Key Features: OEM-Quality Construction – Designed to meet or exceed factory standards for a perfect fit and consistent performance. Heat-Resistant – Built to endure extreme temperatures and pressure within the engine’s cooling system. Durable & Long-Lasting – Manufactured from robust materials to resist cracking, wear, and degradation over time. Leak-Proof – Seals securely to prevent coolant leaks, ensuring optimal engine temperature management. Easy Installation – Direct-fit replacement with no modifications needed for quick and efficient installation. Replace your Radiator Hose - Engine to Radiator to maintain your cooling system’s efficiency and safeguard your engine from overheating.
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Coolant Expansion Tank
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Mahle - Corporate Logo
T#:17538753
Part#: 17138616418
Back Ordered
$ 68.99

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

$ 66.99 USD
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$ 66.99 USD
Free Shipping on orders $49 and up