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BMW Cooling System Parts & Accessories for BMW G32 640i xDrive B58 3.0L

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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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Anti-Freeze Tester

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T#:641679

Part#: CTAA195

Ships on Jul 28, 2026

$ 9.98 USD

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$ 9.98 USD

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Tests all ethylene glycol solutions with radiator hot or cold

Elring Engine Block Water Pump Gasket - BMW F22/23 F3X G30 G01 G02 B5...

For vehicles with the early Gen 1 B58 (B58A) engine only - Not for late B58TU engines

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T#:45483627

Part#: 773.780

Special Order: No Guaranteed ETA

$ 12.99 USD

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$ 12.99 USD

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This gasket seals the connection between the mechanical water pump support bracket and the engine block. Replaces BMW # 11518632586

VEMO Electronic Thermostat And Coolant Distribution Module - BMW B58T...

For vehicles with the later B58C or B58D TU engine - Will not fit the B58A early engine

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T#:52903296

Part#: V20-99-0005

Ships in 3 Business Days

$ 336.99 USD

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An electronic thermostat that is controlled by the car's computer for optimal control over the engine and coolant temperature. Internal valves are opened and closed by the vehicle's DME/ECU to achieve specific temperature targets for optimal engine efficiency and performance.

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2 Pin Connector

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T#:33412932

Part#: 61132359999

Ships on Jul 28, 2026

Sale - Save 25% $ 10.99

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

$ 8.24 USD

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Sale - Save 25%

$ 10.99

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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Rein Turbo Coolant Hose - F22/23, F30/34, F32/33, F36, G01, G02, G11,...

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T#:53856297

Part#: 11538611277

Back Ordered

$ 44.99 USD

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Rein Automotive Turbo Hoses are engineered to meet these rigorous standards, utilizing premium, OE-quality materials specifically formulated to withstand the extreme duty cycles of modern forced-induction systems.

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Expansion Tank

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T#:36201637

Part#: 17139846642

Special Order: No Guaranteed ETA

$ 96.99 USD

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$ 96.99 USD

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The Expansion Tank plays a crucial role in your vehicle’s cooling system, managing coolant expansion and contraction caused by temperature changes. It provides additional space for the coolant, preventing overheating and maintaining the cooling system's efficiency. **Key Benefits:** - **Prevents Overheating:** Regulates coolant expansion and pressure to maintain stable engine temperatures. - **Durable Construction:** Built with heat-resistant materials to endure extreme engine conditions. - **OEM Compatibility:** Precisely designed to meet or exceed original equipment standards for an easy, seamless replacement. - **Leak-Proof Design:** Features a secure seal to prevent leaks and ensure optimal system performance. - **Enhanced Engine Longevity:** Promotes proper coolant circulation, reducing engine wear and tear. The Expansion Tank is an essential component for sustaining your vehicle's cooling system and ensuring reliable engine performance over time.

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Coolant Expansion Tank Cap

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T#:379621

Part#: 17117639020

Ships in 3 Business Days

$ 17.99 USD

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$ 17.99 USD

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Quality aftermarket coolant expansion tank cap.

Vaico Upper Radiator Coolant Hose - BMW G30 G32 G11/G12 B58A ...

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T#:41188159

Part#: 17128602871

Special Order: No Guaranteed ETA

$ 85.99 USD

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$ 85.99 USD

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Directs coolant from the engine to the radiator. Stop leaks and prevent overheating with a new upper radiator hose.

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