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BMW Cooling System Parts & Accessories for BMW 3 Series F30 (2012+)

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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Water Pump - Pierburg

T#:554817

Part#: 11518635090

In Stock

$ 771.99

This product was last offered at the strikethrough price on
07-09-2026

$ 579.99 USD

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$ 579.99 USD

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If your water pump is showing signs of wear and tear, it's crucial to act promptly. Avoid issues like coolant leaks or the dreaded whining noise under the hood by replacing it as soon as possible. The electric water pump, while efficient, may not always give clear signals – except for one: overheating!

Prevents coolant leaks
Eliminates whining noise
Efficient electric water pump
Timely replacement prevents overheating

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OEM Pierburg Water Pump - BMW B46 2.0L

T#:25142296

Part#: 11518638026

Ships on Nov 10, 2026

$ 146.99 USD

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$ 146.99 USD

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The water pump in your vehicle keeps all that coolant flowing freely. If it begins to fail, overheating problems are inevitable. Don't take a chance on doing damage to engine internals by not replacing your water pump. This has been a common problem amongst most German vehicles. Water Pump failure can lead to your vehicle making an unnecessary trip to the repair shop. If your pump stops working, coolant temperatures rise rapidly and can overheat the engine, leading to head gasket or even piston ring failure. This is a great preventative maintenance item when doing any type of timing belt replacement. This is a common replacement around 80,000-100,000 miles.

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Pierburg BMW Auxiliary Water Pump

T#:22064596

Part#: 11517583965

In Stock

$ 221.99 USD

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$ 221.99 USD

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This is the high quality Pierburg electric water pump for F30 F32 F22 models with the N55 6 cylinder turbo engine. The electric water pumps on older N54 and N55 engines tended to be failure prone. The N55 water pump is electrically driven and varies output based on instructions from the engine computer. Under the best circumstances the pump drives only as much coolant as needed and will shut down or activate as load and performance demands change (combustion chamber temperatures are dynamically changed based on economy, normal, and performance demands). The pump can also run when the car is off to reduce heat soak in the engine and turbo(s). The water pump is now a factor in how much power and fuel economy your car is producing, making it all the more critical to replace during normal maintenance. If a fault or excessive temperature is reached, the dash cluster will display a yellow or red water temp icon depending on the severity of the condition. The car's electronics will begin shutting down various systems in the car to divert more resources to the cooling system. This can include reducing power output and activating 'limp mode'. The best way to avoid problems and system failures? Preventative maintenance and overhaul of the cooling system, starting with the water pump (and thermostat). NOTE: ONLY for cars with M Sports Package - option code P337A This item fits the following BMWs: 2012+ F30 BMW 335i 335i xDrive - Sedan 2013+ F32 BMW 435i 435i xDrive - Coupe 2013+ F33 BMW 435i Convertible 435i xDrive Convertible- Convertible 2014+ F34 BMW 335i xDrive GT - Gran Tourismo 2014+ F36 BMW 435i Gran Coupe 435i xDrive Gran Coupe

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Dinan High-Performance Heat Exchanger - F22/23 F3X B46/48 B58 ...

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T#:21045539

Part#: D780-0002

Ships in 5 Business Days

11% off MSRP $ 658.99

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

$ 584.99 USD

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11% off MSRP

$ 658.99

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

$ 584.99 USD

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The factory B4x/B58 heat exchanger is not built to cater to the rigorous demands often associated with a modified build. The thin core is easily overwhelmed with IAT's rising dramatically once pushed beyond a few successive WOT pulls or even a few minutes at the track. This elevation in temperature gives way to the factory ECU fail safes pulling timing and reducing overall power in order to keep the system from overheating to the point of permanent damage. On an application where enjoyment is directly attributed to pushing the platform to its limits this constraint to cooling presents a challenge for the automotive enthusiast. The Dinan B4x/B58 heat exchanger for the F2x/F3x chassis assists in mitigating these issues with a more robust core (48mm thick Dinan core vs. 27mm thick OEM core) that wields 78% more heat transfer surface area for improved cooling capacity. The significant increase in core thickness requires unique "L" shaped end tanks to be incorporated as well, which also contributes to the overall thermal mass (ability to absorb, store, and release heat) improvement beyond the OEM setup. With up to a 15° IAT delta recorded over stock the Dinan heat exchanger is ready, and able, to assist in extending your vehicles ability to deliver maximum performance time and time again for your driving enjoyment! Features: Average of 8° reduction in IAT's with a maximum reduction of 15° over 15 successive WOT pulls Reduces the tendency to heat soak / go in to limp mode 48mm thick Dinan cooler vs. 27mm thick stock cooler 78% more cooling surface area and volume than stock 100% TIG welded and pressure tested Installation hardware included (inclusive of xDrive specific transmission oil cooler brackets) NOTE: Due to the enlarged core and unique "L" shaped endtanks minor modification to the plastic core stack shroud may be required with some factory configurations ( particularly those with the optional OEM hot climate heat exchanger). Consult the installation PDF for full documentation on what exactly that entails. (https://documents.dinancars.com/d780-0002.pdf)

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Pierburg Water Pump - BMW F30 320i N20 2.0L

T#:639136

Part#: 11517597715

In Stock at Vendor

$ 981.99

This product was last offered at the strikethrough price on
03-23-2026

$ 812.99 USD

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$ 812.99 USD

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BMW F30 Water Pump plays a crucial role in the vehicle's cooling system, directly impacting performance and fuel efficiency. Designed to manage engine cooling, this water pump also supports turbo and transmission cooling, making it an essential component of the engine. BMW has engineered this smart electric water pump with increased output to meet the high cooling demands of the N20/N26 engines, which face additional stress due to the factory intercooler, tight engine bay, and heat from the turbochargers.

Enhanced Cooling Performance: Ensures effective cooling of the engine, turbo, and transmission.
Smart Electric Design: Features a dynamic electric pump with increased output compared to normally aspirated models.
Engine Efficiency: Balances engine power output and cooling responsibilities for optimal performance.
Fits Multiple Models: Compatible with 2012+ BMW F30 320i

This water pump is a critical upgrade for maintaining engine health and performance.

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Pierburg Water Pump

T#:363990

Part#: 11518635089

In Stock

$ 463.99 USD

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$ 463.99 USD

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New original equipment water pump to keep your cooling system in tip top shape

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BMW Cooling System Parts & Accessories for BMW 3 Series F30 (2012+)

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Water Pump - Pierburg

OEM Pierburg Water Pump - BMW B46 2.0L

Pierburg BMW Auxiliary Water Pump

Dinan High-Performance Heat Exchanger - F22/23 F3X B46/48 B58 ...

Pierburg Water Pump - BMW F30 320i N20 2.0L

Pierburg Water Pump

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