BMW Thermostats for BMW X Series E83 (2004-2010)

Clear BMW chassis

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.

Sort By:

ECS Billet Cylinder Head Outlet Hose Adapter - BMW N52 N54 N55 3.0L N...

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

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

Add to Wish List

Qty

Sale - Save 25%

$ 76.99

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

$ 57.74 USD

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

Show More Show Less

ECS Aluminized Silicone Water Pump Hose V2.0 - - E9x E8x E6x N52 N54...

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

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

Add to Wish List

Qty

Sale - Save 25%

$ 106.99

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

$ 80.24 USD

Add to Wish List

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

Show More Show Less

OEM Mahle-Behr Thermostat - E82 E9X E60 X3 Z4 with N52 N54 engines ...

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:341203

Part#: 11537549476

In Stock at Vendor

$ 135.19 USD

Add to Wish List

Qty

$ 135.19 USD

Add to Wish List

Engine running a little hot or is the temp gauge not telling you anything? The thermostat might be the likely problem. Many cooling issues start with the thermostat. This is electronically controlled by the engine computer based on the cooling demands from the engine. And cooling components are working harder than ever. Engine performance is also dependent on temperature - as temperatures rise and pass a certain threshold the engine computer will begin reducing power. Stay on top of your cooling maintenance by replacing critical components preventatively. This replacement thermostat fits many of the N51 N52 N53 N54 6 cylinder engines and is an OEM Behr part.

The thermostat is located along with the water pump on the side of the engine. To gain access for removal you may need to remove the water pump as well. If the water pump is removed you MUST replace its mounting bolts. You can add them from the options below. We also have a bundled package that includes the water pump, mounting screws, connecting hose, and clamps if you want to replace everything together (recommended).

This thermostat fits the following BMWs:
2008+ E82 BMW 128i 135i
2007+ E9X BMW 325i 325xi 328i 328xi 330i 335i 335xi
2006+ E60 BMW 525i 525xi 528i 528xi 530i 530xi 535i 535xi
2006+ X3 BMW X3 3.0i X3 3.0si
2006+ Z4 BMW Z4 3.0i Z4 3.0si

Show More Show Less

Aluminized Silicone Water Pump Hose - with clamps

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

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

Add to Wish List

Qty

Sale - Save 25%

$ 113.99

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

$ 85.49 USD

Add to Wish List

OEM Mahle-Behr Thermostat - E39 E46 E60 E53 Z3 Z4 with M54, M52TU eng...

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:341098

Part#: 11537509227

Ships in 1 Business Day

$ 103.81 USD

Add to Wish List

Qty

$ 103.81 USD

Add to Wish List

Replacement stock MAP thermostat with plastic housing and gasket for E46, E39, E60, X5, Z4 - M54 engine, M52TU engine. Your car may still operate fine according the instrument display but the electrically-operated thermostat may be going bad. This new thermostat includes the thermostat gasket, ready to install in your BMW.

Hailing from Stuttgart, Mahle-Behr specializes in automotive cooling systems. From air conditioning to engine cooling M-B has you covered with OE-quality replacement parts.

Applications:
1999-2003 E39 528i, 525i, 530i sedan, touring wagon (M52TU engine, M54 engine)
1999-2005 E46 323, 328, 325, 330 sedan, coupe, cabrio, touring wagon (M52TU engine, M54 engine)
2004-2005 E60 525i, 530i sedan, touring wagon (M54 engine)
2001-2006 E53 X5 3.0 (M54 engine)
2004-2006 E83 X3 2.5i X3 3.0i (M54 engine)
1999-2002 Z3 2.3. Z3 2.5i, 2.8 Z3 3.0i (M54 engine)
2003-2005 Z4 2.5i, Z4 3.0 (M54 engine)

Project Cars

SELECT YOUR BMW

BMW Thermostats for BMW X Series E83 (2004-2010)

ECS Billet Cylinder Head Outlet Hose Adapter - BMW N52 N54 N55 3.0L N...

ECS Aluminized Silicone Water Pump Hose V2.0 - - E9x E8x E6x N52 N54...

OEM Mahle-Behr Thermostat - E82 E9X E60 X3 Z4 with N52 N54 engines ...

Aluminized Silicone Water Pump Hose - with clamps

OEM Mahle-Behr Thermostat - E39 E46 E60 E53 Z3 Z4 with M54, M52TU eng...

Select Vehicle

Purpose

Category

Brand

Price

Special Offers

Shipping

Narrow Results