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BMW Thermostats

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 N...
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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$ 76.99

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06-14-2026

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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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ECS Aluminized Silicone Water Pump Hose V2.0 - - E9x E8x E6x N52 N54 N55
ECS Aluminized Silicone Water Pump Hose V2.0 - - E9x E8x E6x N52 N54...
ECS - Corporate Logo
T#:640062
Part#: 008286LA01
In Stock
Sale - Save 25% $ 106.99

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

$ 80.24 USD
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Sale - Save 25%
$ 106.99

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

$ 80.24 USD
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When it comes to cooling system hose replacement, the "U" shaped hose connecting the water pump to the thermostat is usually the first to fail. A lot of this comes from its close proximity to the hot downpipes, while some of this failure comes from the sharp bends in the hose. 

Why not upgrade when you're due for a replacement? The ECS Tuning silicone hose replacement fixes these issue with two key features in their design. Offering this hose in a much more heat resistant silicone instead of OE rubber and having the hose wrapped in aluminum. The aluminum coating acts as a heat shield to further protect the silicone as well as reducing the temperatures forced on the coolant running through the hose. 

Replaces OE hose #11537545665

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Aluminized Silicone Water Pump Hose - with clamps
Aluminized Silicone Water Pump Hose - with clamps
ECS - Corporate Logo
T#:568837
Part#: 020414ECS01KT
In Stock
Sale - Save 25% $ 113.99

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

$ 85.49 USD
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Sale - Save 25%
$ 113.99

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

$ 85.49 USD
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Aluminum Thermostat Housing Kit - M50
Aluminum Thermostat Housing Kit - M50
Active Autowerke - Corporate Logo
T#:397222
Part#: 14-009
In Stock
$ 56.99

This product was last offered at the strikethrough price on
06-18-2026

$ 52.99 USD
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$ 56.99

This product was last offered at the strikethrough price on
06-18-2026

$ 52.99 USD
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Plastic thermostat housing cracked on your M50?

Here are your choices: you can wait for the plastic factory thermostat housing cover to break and cause major overheating. (Even with a new stock cover, it won’t take long.) Or you can install a thoughtfully engineered all-aluminum thermostat housing cover from Active Autowerke and never experience this type of failure again. Currently there is no factory upgraded part to this problem. This is an aluminum extruded part that has all of the openings machine properly to fit like factory; from the mounting bolt holes, the seating of the thermostat to the sealing opening for the ORANGE gasket. Forged to exact factory tolerances, everything fits and this unit is a true easy bolt-on – especially suited for racing or load conditions like heavy traffic, where engine temp can rise rapidly. The housing is guaranteed never to break from overheating or over-tightening, and its CNC machined surface ensures a precise seat.

Unit comes complete with a new ORANGE sealing gasket; a new thermostat is recommended but not included.
For hotter climates, a 71 degree thermostat is recommended over the 82 degree unit.

Anything and everything BMW is the mantra at Active Autowerke. Since 1981 they have been serving the BMW community with custom turbocharger kits to a myriad of other innovative and inspiring performance parts.
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OEM INA Electronic Thermostat And Coolant Distribution Module - BMW B58TU
OEM INA Electronic Thermostat And Coolant Distribution Module - BMW B...
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Ina - Corporate Logo
T#:36201645
Part#: 11538642559
In Stock
$ 367.99

This product was last offered at the strikethrough price on
07-22-2026

$ 356.99 USD
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$ 356.99 USD
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Engineered specifically for BMW models, the electronic thermostat and coolant distribution module plays a vital role in the engine’s cooling system, adapting to changing temperatures for superior performance under all driving conditions. Whether on the track or the highway, this module ensures your BMW runs cooler, longer, and more efficiently.
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Active Autowerke Thermostat Bypass/Delete Tube - S65
Active Autowerke Thermostat Bypass/Delete Tube - S65
Active Autowerke - Corporate Logo
T#:2302749
Part#: 14-016
Ships in 10 Business Days
$ 141.99 USD
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$ 141.99 USD
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CNC machined coolant/water thermostat bypass tube to improve flow on and off the track. Easy plug and play installation and a durable anodized coating make this a simple and reliable temperature control solution.
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OEM INA Heat Management Module - MINI F5X F60 B36 B46
OEM INA Heat Management Module - MINI F5X F60 B36 B46
We Price Match - Give Us A Call or Chat!
Ina - Corporate Logo
T#:34214774
Part#: 11538631943
In Stock
$ 259.99

This product was last offered at the strikethrough price on
05-15-2026

$ 226.99 USD
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$ 259.99

This product was last offered at the strikethrough price on
05-15-2026

$ 226.99 USD
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Maximize performance and safeguard your engine with the Heat Management Module, engineered to deliver superior temperature control and reliability under extreme conditions.

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