BMW Thermostats for BMW Z Series E85/6 (2003-2008)

Water Pump And Thermostat Kit - BMW N52 3.0L

10X Entries Into Our F80 M3 Sweepstakes

T#:17073598

Part#: 11537549476KT

In Stock

Sale - Save 25% $ 424.99

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

$ 318.83 USD

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$ 424.99

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

$ 318.83 USD

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Includes everything you may need to replace your water pump and thermostat.

Water Pump And Thermostat Kit

10X Entries Into Our F80 M3 Sweepstakes

T#:5376274

Part#: 11517586925TKT

In Stock

Sale - Save 25% $ 448.99

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

$ 337.56 USD

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$ 448.99

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

$ 337.56 USD

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Everything you need to replace your water pump and thermostat. The water pumps in these BMW models are known for failure near 80,000 miles is a very common issue often times leaving the owner stranded. The aftermarket kit offered provides a single stop for water pump and thermostat replacement needs to save the search and get you back on the road. Kit includes: Mahle-Behr thermostat Water pump Genuine BMW coolant thermostat to water pump hose Mounting hardware required for both the thermostat and water pump

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Water Pump And Thermostat Kit

10X Entries Into Our F80 M3 Sweepstakes

T#:15511872

Part#: 821414677040KT

In Stock

Sale - Save 1% $ 475.99

This product was last offered at the strikethrough price on
05-30-2026

$ 469.45 USD

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$ 475.99

This product was last offered at the strikethrough price on
05-30-2026

$ 469.45 USD

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The water pumps in these BMW models are known for failure near 80,000 miles is a very common issue often times leaving the owner stranded. The aftermarket kit offered provides a single stop for water pump and thermostat replacement needs to save the search and get you back on the road. Kit includes: Mahle-Behr thermostat Water pump Genuine BMW coolant Mounting hardware required for both the thermostat and water pump

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Bav Auto Thermostat With Aluminum Housing - M52TU M54

10X Entries Into Our F80 M3 Sweepstakes

T#:12544802

Part#: 11531437040

In Stock

Sale - Save 19% $ 104.99

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

$ 84.99 USD

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$ 104.99

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

$ 84.99 USD

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The plastic thermostat cover in your BMW is a known point of failure. Throughout years of repeated contact with hot coolant, the plastic can crack and cause massive coolant leaks and potential overheating. Eliminate one of the weak links in your cooling system with a replacement aluminum thermostat housing. By installing this aluminum unit, you have no worries as far as plastic housing cracks go

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Thermostat

10X Entries Into Our F80 M3 Sweepstakes

T#:15511826

Part#: 11537549476

In Stock

Sale - Save 18% $ 84.99

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

$ 69.99 USD

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$ 84.99

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

$ 69.99 USD

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Overheating your N52 or N54 engine can be detrimental to the longevity of your engine. We also recommend replacing your hardware 07119903851 x2

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

10X Entries Into Our F80 M3 Sweepstakes

T#:556105

Part#: 024797ECS01

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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

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$ 76.99

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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...

10X Entries Into Our F80 M3 Sweepstakes

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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$ 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

10X Entries Into Our F80 M3 Sweepstakes

T#:568837

Part#: 020414ECS01KT

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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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$ 113.99

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

$ 85.49 USD

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Thermostat With Housing

10X Entries Into Our F80 M3 Sweepstakes

T#:26494584

Part#: 11537509227

In Stock

Sale - Save 16% $ 60.99

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

$ 50.99 USD

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$ 60.99

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$ 50.99 USD

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Genuine BMW Thermostat With Housing - M52 M54

T#:360689

Part#: 11537509227

In Stock

Sale - Save 8% $ 169.69

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

$ 156.96 USD

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$ 169.69

This product was last offered at the strikethrough price on
08-26-2026

$ 156.96 USD

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OEM Wahler Thermostat Assembly - E60/61 E82/88 E9X Z4 N51/N52 ...

T#:360363

Part#: 11537549476

In Stock

Sale - Save 7% $ 97.91

This product was last offered at the strikethrough price on
03-25-2026

$ 91.43 USD

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$ 97.91

This product was last offered at the strikethrough price on
03-25-2026

$ 91.43 USD

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If your vehicle is experiencing cooling issues, chances are the thermostat is the cause. Common symptoms include a 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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Thermostat With Housing

2X Entries Into Our F80 M3 Sweepstakes

T#:582356

Part#: 11537509227

Ships in 4 Business Days

Sale - Save 5% $ 89.99

This product was last offered at the strikethrough price on
08-31-2026

$ 85.49 USD

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$ 89.99

This product was last offered at the strikethrough price on
08-31-2026

$ 85.49 USD

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Stop leaks before they start with this new Thermostat With Housing from Rein.

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BMW Thermostats for BMW Z Series E85/6 (2003-2008)

Water Pump And Thermostat Kit - BMW N52 3.0L

Water Pump And Thermostat Kit

Water Pump And Thermostat Kit

Bav Auto Thermostat With Aluminum Housing - M52TU M54

Thermostat

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...

Aluminized Silicone Water Pump Hose - with clamps

Thermostat With Housing

Genuine BMW Thermostat With Housing - M52 M54

OEM Wahler Thermostat Assembly - E60/61 E82/88 E9X Z4 N51/N52 ...

Thermostat With Housing

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