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BMW Cooling System Parts & Accessories for BMW 6 Series F12 (2012+)

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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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2 Pin Connector

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T#:33412932

Part#: 61132359999

In Stock

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

$ 8.24 USD

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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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Coolant Expansion Tank

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T#:53044121

Part#: 17137601948

In Stock

Sale - Save 15% $ 72.99

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

$ 62.04 USD

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$ 72.99

This product was last offered at the strikethrough price on
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$ 62.04 USD

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Expansion Tank Cap

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T#:382437

Part#: 17117639021

Special Order: No Guaranteed ETA

$ 25.99 USD

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$ 25.99 USD

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Maintain maximum cooling efficiency and system pressure with this Febi Bilstein 2.0 bar replacement cap.

BMW Coolant Expansion Tank

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T#:38553896

Part#: 17137575578

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$ 73.99 USD

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$ 73.99 USD

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Coolant Expansion Tank Keep your vehicle's cooling system functioning properly with the Coolant Expansion Tank, designed to safely contain and manage coolant expansion as engine temperatures rise. This durable tank helps regulate pressure and fluid levels, preventing overheating and protecting your engine components from damage. Key Features: OEM-Quality Construction – Built to meet or exceed factory standards for perfect fit and reliability. Long-Lasting Durability – Crafted from high-quality materials resistant to cracking, corrosion, and extreme heat. Pressure Regulation – Ensures balanced pressure and fluid levels for effective cooling system operation. Leak-Free Design – Seals securely to prevent coolant leaks and maintain optimal engine temperature. Simple Installation – Direct-fit replacement for a quick and easy upgrade. Replace your damaged or aging Coolant Expansion Tank to maintain optimal cooling performance and protect your engine from heat-related issues.

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Thermostat With Housing & Gasket

T#:56544033

Part#: 11537586885

Special Order: No Guaranteed ETA

$ 68.99 USD

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$ 68.99 USD

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This Febi Bilstein electronic coolant thermostat assembly delivers factory-level thermal control to keep coolant temperatures stable across varying engine loads.

BMW water pump

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T#:38385338

Part#: 11517596763

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$ 1,067.99 USD

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$ 1,067.99 USD

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If your water pump is failing, you may notice coolant leaks or hear a whining noise from under the hood. However, with an electric water pump, failure can sometimes go unnoticed until overheating occurs. Watch for warning signs and replace your water pump promptly to avoid engine damage. For vehicles without the M Sport package.

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Electromagnetic Water Pump With Bolts

T#:56291026

Part#: 178011

Special Order: No Guaranteed ETA

$ 879.99 USD

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$ 879.99 USD

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Restore the cooling precision of your BMW with this OEM-spec Febi Bilstein replacement electric water pump.

Coolant Expansion Tank Cap

T#:56001934

Part#: 46221

Special Order: No Guaranteed ETA

$ 19.99 USD

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$ 19.99 USD

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This Febi Bilstein coolant expansion tank cap is designed to maintain the exact 1.4 bar pressure required to maximize your coolant's boiling point.

Bav Auto Temperature Sensor - BMW E39 E46 E9X E60 F01/02

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T#:639833

Part#: 13621433076

In Stock

Sale - Save 20% $ 14.99

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

$ 11.99 USD

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This is the coolant temperature sensor used in many BMW models from the late-1990s to the mid-2010s. The engine computer relies on the coolant temp to set the fuel mapping for the engine. As the car warms up the computer changes the fuel mixture. If your car is running a bit rich (too much fuel) it could be because this sensor is failing and not sending the correct info to the computer. This sensor is located in a variety of places depending on the engine. But it's one of those easy replacement items 'while you're in there' when doing a water pump or thermostat replacement. From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty.

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Bolt For Water Pump

T#:56724732

Part#: 11517602123

Special Order: No Guaranteed ETA

$ 2.99 USD

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$ 2.99 USD

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This Febi Bilstein water pump screw offers superior durability designed to maintain consistent clamping pressure under high thermal loads.

Auxiliary Water Pump

T#:380532

Part#: 11517566335

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$ 247.99 USD

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$ 247.99 USD

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Meyle Engine Coolant Thermostat - BMW FXX, GXX

5X Entries Into Our F80 M3 Sweepstakes

T#:52797701

Part#: 3282280016

Ships on Sep 22, 2026

$ 47.99 USD

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$ 47.99 USD

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This MEYLE thermostat ensures your engine stays at the perfect temperature for efficiency and power.

BMW Expansion Tank Kit - 17137647283

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T#:46616005

Part#: EPK0151

Ships in 4 Business Days

Sale - Save 6% $ 100.99

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

$ 95.28 USD

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Replace your damaged expansion tank to prevent coolant loss or potential overheating issues. his item fits the following BMW Chassis: F01,F02,F06,F10,F12,F13 Fits BMW Engines including: N54,N55,N57N

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Coolant Hose

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T#:30828069

Part#: 17127619702

In Stock

$ 50.99 USD

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$ 50.99 USD

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Your cooling system is crucial for maintaining your engine's health over the long haul. Upgrade to Uro's metal flange to replace damaged or worn coolant hoses and ensure lasting performance.

Coolant Expansion Tank Cap

T#:379621

Part#: 17117639020

Back Ordered

$ 17.99 USD

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$ 17.99 USD

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Quality aftermarket coolant expansion tank cap.

Meistersatz Temperature Sensor

T#:379740

Part#: 13621433076

In Stock at Vendor

$ 15.99 USD

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$ 15.99 USD

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Monitors coolant / oil temperature

INA Water Pump for E60 , E71 and F10

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T#:36574507

Part#: 11517632426

Back Ordered

$ 691.99 USD

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$ 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 Hose - Priced Each

2X Entries Into Our F80 M3 Sweepstakes

T#:590201

Part#: 11537580969

Ships in 2 Business Days

$ 25.99 USD

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$ 25.99 USD

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Vent Hose

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T#:39295552

Part#: 17127576363

Special Order: No Guaranteed ETA

Sale - Save 21% $ 27.99

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

$ 22.02 USD

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$ 22.02 USD

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