BMW Thermostats for BMW X Series F25 (2011+)

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BMW thermostats are known to fail, but luckily they typically fail wide open - meaning that your car can still cool. We offer thermostats from various OE suppliers we trust along with upgraded motorsport specific thermostats where applicable to make sure your BMW stays cool on track.
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ECS Billet Cylinder Head Outlet Hose Adapter - BMW N52 N54 N55 3.0L N20 2.0L
ECS Billet Cylinder Head Outlet Hose Adapter - BMW N52 N54 N55 3.0L ...
10X Entries Into Our F80 M3 Sweepstakes
ECS - Corporate Logo
T#:556105
Part#: 024797ECS01
In Stock
Sale - Save 25% $ 76.99

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

$ 57.74 USD
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Sale - Save 25%
$ 76.99

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

$ 57.74 USD
Free Shipping on orders $49 and up
Add to Wish List
Some of the biggest issues when owning a BMW can come from cooling system components. Even through years of improvement, the same failure is seen with the plastic fittings and adapters from years of hot to cold temperature fluctuation. The N52/N54/N55/N20 engine sees failure at the plastic cylinder head outlet adapter connecting the cylinder head to the thermostat hose. The stock plastic adapter simply shears off at the end of the barbed fitting, creating a massive coolant leak. The engineering team at ECS Tuning decided a billet aluminum piece was a much better option to contend with the temperature fluctuation. Since other offerings on the market want you to modify your OE hose to be reused, they even developed a silicone replacement hose. These 2 pieces can be purchased separately if you decide to reuse your existing OE hose or in a package kit together for a single click upgrade. Features: Manufactured from billet 6061-T6 with type III anodized for exceptional durability and corrosion resistance. Much stronger part than OEM plastic ​​Will not become brittle and fatigued over time due to thermal cycling. This will prevent the part from breaking during removal and re-installation. Follows OEM form for perfect fitment. Utilizes (and includes) OEM O-ring 11537545278 to ensure a proper seal. Recommended clamp size is 25-40mm
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BMW F25 F26 N54 N55 Thermostat Assembly
BMW F25 F26 N54 N55 Thermostat Assembly
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:15445602
Part#: 11537586784
In Stock
$ 95.99 USD
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$ 95.99 USD
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BMW F25 F26 N54 N55 Thermostat Assembly is crucial for maintaining your vehicle's optimal cooling performance. If your BMW is experiencing cooling issues, the thermostat could be the culprit. Common symptoms include prolonged engine warm-up at highway speeds if the thermostat is stuck open, or consistent overheating if it’s stuck closed. Both conditions can lead to poor performance and potential damage to essential engine components.

  • Optimal Temperature Regulation: Ensures your engine maintains the proper operating temperature for efficient performance.
  • Prevents Overheating: Replaces faulty thermostats that can cause the engine to overheat, protecting vital components.
  • Improves Warm-Up Time: Addresses issues related to prolonged warm-up periods, enhancing overall driving comfort.
  • High-Quality Construction: Designed to meet or exceed OEM specifications for reliability and durability.
  • Easy Installation: Direct fit replacement that simplifies the repair process.

Upgrade your BMW’s cooling system with the BMW F25 F26 N54 N55 Thermostat Assembly from Turner Motorsport to ensure reliable engine performance and prevent overheating issues.

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Genuine BMW Thermostat With Housing - N20
Genuine BMW Thermostat With Housing - N20
Genuine BMW - Corporate Logo
T#:367096
Part#: 11538635689
Ships in 3 Business Days
8% off MSRP $ 177.99

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

$ 162.99 USD
Free Shipping
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8% off MSRP
$ 177.99

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

$ 162.99 USD
Free Shipping
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N20 thermostats are prone to failure - replace yours today with a Genuine BMW replacement.

Turner Motorsport is proud to be your source for Genuine BMW parts.

 

Genuine BMW Thermostat - F25 xDrive35i F26 X4 xDrive35i
Genuine BMW Thermostat - F25 xDrive35i F26 X4 xDrive35i
Genuine BMW - Corporate Logo
T#:36074
Part#: 11537586784
Ships in 3 Business Days
8% 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.

$ 178.99 USD
Free Shipping
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8% 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.

$ 178.99 USD
Free Shipping
Add to Wish List


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

Fits BMW Engines including:
N55

Genuine BMW Thermostat - 11518512234 - F15,F25,F30,F31
Genuine BMW Thermostat - 11518512234 - F15,F25,F30,F31
Genuine BMW - Corporate Logo
T#:186477
Part#: 11518512234
In Stock
9% off MSRP $ 87.99

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

$ 79.99 USD
Free Shipping
Add to Wish List
9% off MSRP
$ 87.99

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

$ 79.99 USD
Free Shipping
Add to Wish List


Genuine BMW Thermostat -
This item fits the following BMW Chassis:
F15,F25 X3,F30,F31

Fits BMW Engines including:
N57N

Genuine BMW Water Pump & Thermostat Kit - BMW F30/F31 328d, F25 X3 28d xDrive N47 2.0L
Genuine BMW Water Pump & Thermostat Kit - BMW F30/F31 328d, F25 X3 2...
Genuine BMW - Corporate Logo
T#:48160261
Part#: 11518516204KT
Ships in 9 Business Days
$ 455.99

This product was last offered at the strikethrough price on
06-08-2026

$ 443.99 USD
Free Shipping on orders $49 and up
Add to Wish List
$ 443.99 USD
Free Shipping on orders $49 and up
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It is important that your coolant system is serviced at regular intervals to ensure a long life. Over time, coolant systems are exposed to high temperatures and repeated thermal cycling, which causes warping, cracking, and hardening of plastics and rubber components in the coolant system. This can lead to coolant leaks and overheating, which can result in extensive engine damage if not resolved in a timely manner. This Water Pump & Thermostat kit helps to address a few of the most problematic parts, replacing these items entirely to keep your cooling system running optimally and efficiently.
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