BMW Cooling System Parts & Accessories for BMW 3 Series G20 (2019+)

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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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Spal Universal 16" Electric Fan - Black
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T#:583649
Part#: 30102048
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Universal fan that allows increased cooling capacity and shroudless design. 1959 CFM.
Genuine BMW Auxiliary Radiator Hose - Inlet - 17128654821
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Genuine BMW - Corporate Logo
T#:618260
Part#: 17128654821
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6% off MSRP $ 94.99

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$ 88.99 USD
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6% off MSRP
$ 94.99

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

$ 88.99 USD
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This item fits the following BMWs:

M340i G20 M340iX G20

Silver Auxiliary Coolant Reservoir Cap
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Precision Raceworks - Corporate Logo
T#:38128032
Part#: 201-0394-SIL
Ships in 7 Business Days
$ 99.99

This product was last offered at the strikethrough price on
01-22-2026

$ 94.99 USD
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$ 94.99 USD
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BMW Silver Auxiliary Coolant Reservoir Cap is the perfect upgrade for BMW owners looking to enhance both the aesthetics and functionality of their engine bay. Unlike generic aftermarket caps that overlook critical pressure regulation, this precision-engineered cap retains the OEM pressure release functionality, ensuring safe and reliable coolant system performance.

Crafted from high-quality billet aluminum, this reservoir cap offers superior durability and resistance to heat and fluids, preventing warping or degradation over time. Unlike adhesive-based cap covers that can loosen or fall off, this cap is a direct replacement for the factory component, providing a secure, high-performance solution.

  • OEM pressure release functionality – Maintains proper system regulation for optimal coolant performance
  • Premium billet aluminum construction – Offers enhanced durability and longevity
  • Direct replacement design – Secure fit without adhesives or modifications
  • Resistant to heat and fluids – Ensures long-lasting reliability in extreme conditions
  • Performance-inspired look – Adds a sleek, high-end appearance to your engine bay
  • Upgraded durability – Prevents cracking, leaks, and premature wear

Upgrade your BMW’s cooling system with the BMW Silver Auxiliary Coolant Reservoir Cap, blending performance, reliability, and premium styling.

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Genuine BMW Expansion Tank Coolant Hose - BMW G42 G20 G22/23/26 B46/B...
For models with the earlier B48D, B46D, or B46X engines - Not compatible with the later...
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Genuine BMW - Corporate Logo
T#:624478
Part#: 17128654824
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$ 54.99 USD
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$ 57.99

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$ 54.99 USD
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This coolant hose connects your cylinder head to your expansion tank. Replace your cracked or split coolant expansion tank hose to prevent coolant and pressure loss in your cooling system.

ECS High Performance Aluminum Radiator & Heat Exchanger Kit - G2X B58...
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T#:46890689
Part#: 008765LA01KT
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This product was last offered at the strikethrough price on
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$ 1,040.38 USD
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Maximize cooling efficiency and take your BMW’s performance to the next level with the ECS High Performance Cooling System Bundle—a complete, track-proven upgrade engineered to handle the extreme thermal demands of the G2X B58 platform. Developed by the enthusiasts at ECS Tuning, this system includes both the High Performance Aluminum Radiator and High Performance Aluminum Heat Exchanger, designed to deliver consistent, reliable temperature control in even the most demanding driving conditions.

The factory BMW cooling components just aren’t built for high-performance or track use. Both the OE radiator and heat exchanger feature weak plastic end tanks and undersized single-row cores—common failure points when exposed to elevated heat and pressure. ECS set out to solve these shortcomings with an all-aluminum, dual-row system designed for enthusiasts who demand more from their BMW. ECS engineers started by replacing the fragile plastic end tanks with TIG-welded 6061-T6 aluminum for unmatched durability. Each tank is precision-crafted with CNC-machined billet aluminum hose connections, flanges, and brackets, ensuring direct OE-style fitment with the factory hoses, fan shroud, and accessories—no cutting or modifications required.

Both the radiator and heat exchanger feature high-capacity, dual-row 42mm cores, a massive improvement over the factory’s 34mm and 25mm single-row designs. The result? Faster heat dissipation, lower intake air temperatures, and more consistent performance, whether you’re cruising or carving apexes.

Radiator: Replaces OEM part numbers 17118666740 and 17115A30677

Heat Exchanger: Replaces OEM part numbers 17118666811 and 17115A54040

Features:

6061-T6 aluminum construction eliminates weak plastic end tanks Dual-row core design for increased cooling capacity and efficiency Radiator: 42mm dual-row core (45% thicker than OE 34mm core) Heat Exchanger: 42mm dual-row core (72% thicker than OE 25mm core) TIG-welded end tanks for superior strength and reliability Polished aluminum finish for a premium, high-performance look CNC-machined connectors and brackets for perfect OE fitment Fully compatible with factory hoses, fan shroud, condenser, and intercooler Direct bolt-in installation—no modifications required

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Universal 14" Electric Fan - Black
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Mishimoto - Corporate Logo
T#:378422
Part#: MMFAN14
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$ 100.99 USD
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WARNING! Prop 65 may apply to this product. Proposition 65 (Safe Drinking Water and Toxic Enforcement Act of 1968) is a California law that applies to call companies selling products in California. Prop 65 requires any listed chemical present above very low levels that are known to cause cancer, birth defects, or other reproductive harm. For more information about California Prop 65 warning see: www.P65Warnings.ca.gov.
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Mishimoto Replacement Universal Oil Cooler - 19 Row
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Mishimoto - Corporate Logo
T#:381042
Part#: MMOC-19
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$ 218.99

This product was last offered at the strikethrough price on
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$ 196.99 USD
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WARNING! Prop 65 may apply to this product. Proposition 65 (Safe Drinking Water and Toxic Enforcement Act of 1968) is a California law that applies to call companies selling products in California. Prop 65 requires any listed chemical present above very low levels that are known to cause cancer, birth defects, or other reproductive harm. For more information about California Prop 65 warning see: www.P65Warnings.ca.gov.
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BMW Mishimoto 12" Universal Curved Blade Electrical Fan
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Mishimoto - Corporate Logo
T#:637388
Part#: MMFAN-12C
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$ 96.99 USD
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BMW Mishimoto 12" Universal Curved Blade Electrical Fan

The BMW Mishimoto 12" Universal Curved Blade Electrical Fan is an ideal upgrade for enhancing cooling efficiency or addressing fitment issues with aftermarket components. Turner Motorsport offers this fan with a slim profile that allows for easy installation flush against the radiator, ensuring optimal performance and space utilization.

Benefits:

  • High-Flow Performance: Delivers 1150 CFM of airflow for superior cooling efficiency.
  • Universal Fitment: Designed to fit a wide range of vehicles and applications.
  • Compact Design: With a diameter of 12" and an overall thickness of just 2.5", it increases engine bay space and allows for flexible installation.
  • Versatile Operation: Easily reversible for use as either a pusher or puller fan.
  • Mishimoto Lifetime Warranty: Backed by Mishimoto's lifetime warranty for peace of mind.
  • Prop 65 Warning: Note that Proposition 65 may apply to this product. For more information, visit www.P65Warnings.ca.gov.
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WATER PUMP
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Genuine BMW - Corporate Logo
T#:636029
Part#: 11518482250
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8% off MSRP $ 200.99

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

$ 183.99 USD
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8% off MSRP
$ 200.99

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$ 183.99 USD
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Genuine BMW Cooant Pump with Support Housing - BMW G42 G2X G30 G01 G0...
For models with the earlier B48D, B46D, or B46X engines and without the Energy Recovery...
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Genuine BMW - Corporate Logo
T#:606625
Part#: 11518650988
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9% off MSRP $ 300.99

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$ 274.99 USD
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9% off MSRP
$ 300.99

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

$ 274.99 USD
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Mechanical water pumps circulate coolant between the engine block, cylinder head, and radiators. Over time, the seals and bearings can wear out, leading to leaks from the impeller shaft and around the pump face. Some BMW water pumps have even had imellers that come loose from the shaft, resulting in little or no coolant flow. Plastic coolant flanges attached to the housing can become brittle over time, cracking or breaking off completely, leading to coolant loss and overheating. Restore cooling functionality and performance with a brand new pump directly from BMW. This coolant pump assembly includes the pump, the coolant support housing, four of the plastic coolant flanges, and a new water pump pulley.
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Mishimoto Universal Curved Blade Electrical Fan - 14"
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Mishimoto - Corporate Logo
T#:637389
Part#: MMFAN-14C
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$ 104.99 USD
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This curved blade fan can be used as an upgrade to the OEM fan for more efficient cooling or fitment issues with aftermarket products. With its slim design, the fan can easily be installed flush against a radiator. For universal installation, use Mishimoto universal fan mount kit, T#363171. Features: High-flow curved blade fan provides 1300 CFM of airflow Universal fitment Compact design with a diameter of 14" and an overall thickness of only 2.65" provides increased engine bay space Mishimoto Lifetime Warranty WARNING! Prop 65 may apply to this product. Proposition 65 (Safe Drinking Water and Toxic Enforcement Act of 1968) is a California law that applies to call companies selling products in California. Prop 65 requires any listed chemical present above very low levels that are known to cause cancer, birth defects, or other reproductive harm. For more information about California Prop 65 warning see: www.P65Warnings.ca.gov.
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SCREW CAP FOR EXPANSION TANK
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Genuine BMW - Corporate Logo
T#:628106
Part#: 17138665638
In Stock
11% off MSRP $ 34.99

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$ 30.99 USD
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11% off MSRP
$ 34.99

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

$ 30.99 USD
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Genuine MINI Engine Coolant Expansion Tank Cap - 17135A1BD89 ...
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Genuine MINI - Corporate Logo
T#:28337931
Part#: 17135A1BD89
Ships in 1 day
9% off MSRP $ 34.99

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

$ 31.99 USD
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9% off MSRP
$ 34.99

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

$ 31.99 USD
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CSF High-Performance Auxiliary Radiator - A90/G20/G29
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CSF - Corporate Logo
T#:5802174
Part#: 8179
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$ 349.00 USD
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CSF is one of the premier cooling product specialists available on the market thanks to designs such as their High Performance Aluminum Radiators. Using that knowledge, they have developed this set of high-performance radiators that far surpass the abilities of the stock units. These radiators feature 2-row, 42mm High performance cores with 6.5mm tall multi-louvered fins. The units have also been machined with OE quick connect inlets and outlets. Composed of 100% aluminum which also features an aluminum rock guard and finished in thermal black protective coating. Designed for an OEM fitment with no further modification required. Features: Fits Both Left & Right Side of Vehicle 2-Year Limited Warranty Tested and Proven by CSF’s Global Network of R&D Partners, Including Leading Time Attack Teams, Tuners, and Turbo Kit Manufacturers
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Genuine BMW water pump housing coolant flange - G-Chassis - B48TU (B4...
For B48TU Gen 2 applications (B46D/B48D)
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Genuine BMW - Corporate Logo
T#:48780791
Part#: 11515A74E79
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2% off MSRP $ 133.99

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$ 130.99 USD
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2% off MSRP
$ 133.99

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

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Genuine BMW replacement coolant flange for back of water pump housing

ECS High Performance Aluminum Radiator - G20 M340i, G22/23 M440i, G42...
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ECS - Corporate Logo
T#:46890682
Part#: 008765LA01
In Stock
Sale - Save 15% $ 611.99

This product was last offered at the strikethrough price on
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$ 611.99

This product was last offered at the strikethrough price on
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When it comes to serious performance driving, the stock BMW G2X radiator quickly shows its limits. Like many factory BMW cooling systems, it relies on molded plastic end tanks that are notorious for cracking and leaking over time. Additionally, its single-row, 34mm-thick core offers poor cooling capacity for high-horsepower or track-driven cars.

To address these shortcomings, ECS developed the ultimate cooling solution for the G2X B58 platform—a High-Performance Aluminum Radiator designed, engineered, and tested by their in-house BMW specialists. Built to handle the increased thermal demands of high-horsepower builds and extended track sessions, this radiator delivers both unmatched durability and significantly improved heat dissipation.

Each unit features fully TIG-welded 6061-T6 aluminum end tanks, eliminating the weak points found in the OE design. Precision CNC-machined hose connections, flanges, and mounting brackets ensure a perfect drop-in fit with factory hoses, the fan shroud, and auxiliary components. No modifications required — just direct performance.

At the heart of the design lies a dual-row, 42mm-thick core, increasing total coolant volume and surface area for improved heat transfer. Compared to the factory’s 34mm single-row core, this upgrade translates to cooler operating temperatures and consistent performance under demanding conditions.

Features:

Full 6061-T6 aluminum construction eliminates plastic end tank failures Dual-row, 42mm performance core (45% thicker than OE) for increased cooling efficiency OE Radiator: Single-row, 34mm core ECS High Performance Aluminum Radiator: Dual-row, 42mm core TIG-welded aluminum end tanks for maximum strength and longevity Polished finish for a premium appearance CNC-machined fittings and brackets ensure seamless compatibility with factory hoses, transmission cooler lines, and condenser Direct-fit installation – no cutting or modifications required Replaces OEM Part Numbers: 17118666740, 17115A30677

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Bav Auto Angled Hose Pinch Plier Set - 2pc
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Bav Auto Tools - Corporate Logo
T#:580379
Part#: B8800058
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This product was last offered at the strikethrough price on
05-03-2026

$ 24.74 USD
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Angled jaws close, creating a complete seal every time you use them - the jaws are offset, making it possible to use in hard-to-reach locations. Made of glass-filled nylon for extra strength. These are perfect for use with brake lines, etc.
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Universal Oil Cooler with Thermostat - 19 Row
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Mishimoto - Corporate Logo
T#:19593926
Part#: MMOCULT
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$ 599.99 USD
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Enhance your BMW's performance and protect its engine with this high-quality oil cooler kit

Even under ideal driving conditions, elevated oil temperatures can lead to decreased lubrication efficiency and pressure. With this oil cooler, you can maintain optimal oil temperatures for peak driving performance.

Kit Includes:

  • Four feet of stainless braided line for durability
  • Adapter fittings for easy installation
  • Oil filter sandwich adapter for seamless integration

Specifications:

  • Rows: 19
  • Overall Dimensions: 13" x 5.5" x 2"
  • Core Dimensions: 11.25" x 5.5" x 2"
  • Braided Hoses: 4ft .75 inch & 4ft 9 inch
  • Braided Hose Fittings: -10AN
  • Sandwich Plate Fittings: -10AN
  • Includes Thermostat for precise temperature and flow control

*WARNING: This product may be subject to Proposition 65 regulations in California. For more information, visit www.P65Warnings.ca.gov.

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Oil Cooler Gasket Set
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Elring - Corporate Logo
T#:15048412
Part#: 11428583897
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$ 21.25 USD
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Avoid leaks and other issues by replacing your oil cooler gaskets upon taking out or replacing the unit itself!
Uro - Aluminum Coolant Hose Connector for E9x, and Z4
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URO Premium - Corporate Logo
T#:37757289
Part#: 11537545890PRMK
In Stock
$ 24.99 USD
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Aluminum Connector that replaces the OEM brittle Plastic

Genuine BMW Lower Radiator Hose - BMW G42 G20 G22/23/26 B46/B48 ...
For models with the earlier B48D, B46D, or B46X engines - Not compatible with the later...
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Genuine BMW - Corporate Logo
T#:618175
Part#: 17128654823
In Stock
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MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 125.03 USD
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The lower radiator hose transfers low temp coolant from your radiator to your engine, helping to keep engine temperatures in check. If your lower radiator hose failed, replace it with this Genuine BMW hose to prevent additional coolant loss, overheating, and stop air from entering your coolant system.
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Universal 12" Electric puller Fan - Black
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Spal - Corporate Logo
T#:598801
Part#: 30100375
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$ 99.99 USD
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861 CFM. High performance puller fan with straight blades. This is a universal fan for applications that require more air flow or for engine compartments that have tight tolerances such as an aftermarket turbo set up that needs more clearance. This fan is universal and you must make it fit your application. It is not a direct bolt on. Made in Italy. Size: 13.25in x 12.5in x 2.2in Airflow (CFM): 861
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OEM INA Electronic Thermostat And Coolant Distribution Module - BMW B...
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Ina - Corporate Logo
T#:36201645
Part#: 11538642559
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$ 367.33 USD
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$ 367.33 USD
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Engineered specifically for BMW models, the electronic thermostat and coolant distribution module plays a vital role in the engine’s cooling system, adapting to changing temperatures for superior performance under all driving conditions. Whether on the track or the highway, this module ensures your BMW runs cooler, longer, and more efficiently.
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Coolant Return Line
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Rein - Corporate Logo
T#:53856300
Part#: 11538650087
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$ 60.99 USD
Rein Automotive turbo hoses are engineered to meet these rigorous demands, providing the reliability required for both the track and the street.


419 Pc. Metric Universal O-Ring Assortment
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T#:3657943
Part#: ATD3601
Ships in 1 Business Day
$ 59.99 USD
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Always have extra o-rings
Universal 12" Electric Fan - Black
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Mishimoto - Corporate Logo
T#:378443
Part#: MMFAN12
In Stock at Vendor
$ 93.99 USD
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WARNING! Prop 65 may apply to this product. Proposition 65 (Safe Drinking Water and Toxic Enforcement Act of 1968) is a California law that applies to call companies selling products in California. Prop 65 requires any listed chemical present above very low levels that are known to cause cancer, birth defects, or other reproductive harm. For more information about California Prop 65 warning see: www.P65Warnings.ca.gov.
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Rein Aluminum Oil Filter Housing - BMW B58
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Rein - Corporate Logo
T#:49404665
Part#: 11428583901
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$ 408.99 USD
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For those who push their engines to the limit, "good enough" is a liability. Upgrade to the Rein HEU0116 Aluminum Oil Filter Housing—the professional’s choice for durability and peace of mind.

CSF - A9X Supra & BMW G-Series High-Performance Radiator
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CSF - Corporate Logo
T#:33879999
Part#: 7226
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$ 789.00 USD
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The CSF - A9X Supra & BMW G-Series High-Performance Radiator is engineered to deliver exceptional cooling performance for high-powered Toyota Supra A9X and BMW G-Series vehicles. Designed with cutting-edge technology and high-grade materials, this radiator ensures efficient heat dissipation, making it ideal for both street and track use. Available through Turner Motorsport, this high-performance radiator is a must-have upgrade for drivers looking to enhance their vehicle's engine longevity and reliability.

  • Optimized Cooling: Maintains ideal engine temperatures, even during intense driving conditions.
  • Durable Construction: Made from high-quality aluminum, providing resistance to corrosion and wear.
  • Direct Fitment: Designed for a seamless, bolt-on installation without any modifications required.
  • Enhanced Performance: Improves overall engine efficiency by preventing overheating during high-demand situations.
  • Versatile Use: Perfect for daily driving, racing, or performance builds.

The CSF - A9X Supra & BMW G-Series High-Performance Radiator provides superior performance and durability, making it the ultimate choice for enthusiasts seeking optimal engine cooling and reliability.

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Spal Electric Fan Harness with Relay
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T#:2181323
Part#: FRH
Special Order: No Guaranteed ETA
12% off MSRP $ 112.99

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

$ 99.99 USD
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12% off MSRP
$ 112.99

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

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SPAL® electric fan relay wiring kits are designed to automatically turn on your SPAL® electric fan when the air conditioning is turned on. They can also be used when dual electric fans are installed using one switching device. Features: Makes installation of your new fan a breeze Designed to safely integrate with OEM wiring Feature a waterproof 10/40 amp relay with printed wires for easy installation Harness is designed for 12V systems only Does not included thermo-switch
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OEM Rein Turbocharger Coolant Supply Line - BMW Gen2 B46/B48 2.0L ...
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Rein - Corporate Logo
T#:34315143
Part#: 11538629971
Ships in 3 Business Days
$ 47.99

This product was last offered at the strikethrough price on
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$ 42.99 USD
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$ 42.99 USD
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Turbo coolant supply lines feed coolant to the turbocharger, ensuring temperatures are kept in check. If your coolant line is leaking, it is important to replace it as soon as possible to prevent coolant loss, overheating, and turbo damage.
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Autotecknic Dry Carbon Fiber Cooling Shroud - G20 340i
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AUTOTECKNIC - Corporate Logo
T#:21209849
Part#: ATK-BM-0004-M340
Ships in 7 Business Days
$ 395.00 USD
$ 395.00 USD
Carbon fiber is a staple in the performance world and has been incorporated into motorsports since the early 80s. Over time companies have taken it upon themselves to create new carbon products to add to your car that may have not been originally available. Autotecknic is no different. If you're looking for a carbon addition that has been made to the highest standards with premium materials, then Autotecknic's line of carbon additions is your one-stop shop. Made from dry carbon this shroud is durable and can stand strong in any driving environment. Dry carbon is the highest-quality version of carbon fiber products that are produced. Dry carbon fiber's name comes from its manufacturing process. Dry carbon fiber is formed by using a "pre-preg" or impregnated piece of carbon materials. This piece of carbon is first placed into a mold and then into a sealed vacuum (autoclave) to properly cure. This method creates the least amount of waste and forms a lighter version of carbon than the "wet" method. The autoclave vacuuming process of making dry carbon means fewer pinholes and virtually no air pockets in the carbon. Some customers have even reported better gas mileage and power gains.
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CTS Turbo Auxiliary Radiator - Priced Each - BMW G20 G22/23 G29, Toyo...
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CTS - Corporate Logo
T#:20155606
Part#: CTS-HX-0010
Ships in 7 Business Days
$ 379.99 USD
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$ 379.99 USD
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We are proud to announce our new high-performance Auxiliary Radiator Cooler Upgrade for G-series BMWs and MKV Toyota Supra. Designed specifically for enthusiasts who demand superior cooling performance, this upgrade offers enhanced heat dissipation and improved thermal management for your engine and transmission. Crafted from top-quality materials, the auxiliary radiator cooler is engineered to seamlessly integrate into your existing cooling system, providing optimized cooling efficiency under high-stress conditions. Say goodbye to overheating worries and unleash the full potential of your B58’s performance with our Auxiliary Radiator Cooler Upgrade. **PLEASE NOTE THESE ARE SOLD INDIVIDUALLY. ALL CARS REQUIRE 2 AUXILIARY RADIATORS PLEASE ENSURE TO ADD 2 TO YOUR CART FOR A FULL SET. Features: Elevate cooling performance with our Auxiliary Radiator Cooler Upgrade Features a 2-row, 42mm ultra-high-performance core Precision CNC machined mounting brackets and OEM-style Quick Connect fittings Constructed with 100% aluminum, TIG-welded for durability and heat dissipation High-performance black finish Fits seamlessly on both left and right sides of the vehicle Designed as a drop-in fit, requiring no modifications during installation Fitment: 2020 – present A90/A91 Toyota Supra 2018 – present BMW G2X/G42 M340i M440i M240i 2018 – present BMW z4 M40i
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Universal 16" High performance Electric puller Fan - Black
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Spal - Corporate Logo
T#:598818
Part#: 30102113
In Stock at Vendor
$ 257.99 USD
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$ 257.99 USD
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2467 CFM. High performance puller fan with curved blades. This is a universal fan for applications that require more air flow or for engine compartments that have tight tolerances such as an aftermarket turbo set up that needs more clearance. This fan is universal and you must make it fit your application. It is not a direct bolt on. Made in Italy. Size: 16.25in x 15.75in x 3.5in Airflow (CFM): 2467
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Universal 12" Electric Fan - Blue
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Mishimoto - Corporate Logo
T#:378412
Part#: MMFAN12BL
Ships in 1 Business Day
$ 106.99 USD
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$ 106.99 USD
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WARNING! Prop 65 may apply to this product. Proposition 65 (Safe Drinking Water and Toxic Enforcement Act of 1968) is a California law that applies to call companies selling products in California. Prop 65 requires any listed chemical present above very low levels that are known to cause cancer, birth defects, or other reproductive harm. For more information about California Prop 65 warning see: www.P65Warnings.ca.gov.
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Gear Wrench Angled Hose Clip Pliers
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Gear Wrench - Corporate Logo
T#:387079
Part#: KDT3977
Ships in 1 Business Day
$ 53.99 USD
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This tool is a variation of our popular 3976 Flat Band Hose Clamp Pliers and features 45º jaws with swivel tips to grip at any angle and pliers that latch securely in position.
OEM Bosch Auxillary Water Pump - F9X G05/06/07 G20/21 G30 G32 G11/12 ...
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2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Bosch - Corporate Logo
T#:639196
Part#: 0392023486
In Stock
$ 78.99

This product was last offered at the strikethrough price on
02-07-2026

$ 58.99 USD
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$ 58.99 USD
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Auxillary water pumps are electric water pumps that pump coolant to critical components of your BMW. A failing pump can cause excessive noise and intermittent cooling issues, leading to potential damage if not replaced quickly enough. If the electric motor dies completely, chances are any parts downstream from the pump will overheat and fail, leading to costly repairs and replacements. Prevent this from happening by installing this brand new Auxillary Water Pump from OEM Bosch!
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RADIATOR
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Genuine BMW - Corporate Logo
T#:625185
Part#: 17118666740
Ships in 1 day
8% off MSRP $ 614.99

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

$ 562.99 USD
8% off MSRP
$ 614.99

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

$ 562.99 USD
To prevent overheating problems, replace a leaking radiator promptly.
Genuine BMW Cooling Pump with Support - 11518650986
For vehicles without Energy Recuperation System (O1CE) produced before 07/20
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Genuine BMW - Corporate Logo
T#:606623
Part#: 11518650986
Ships in 1 day
9% off MSRP $ 327.99

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

$ 299.99 USD
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9% off MSRP
$ 327.99

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

$ 299.99 USD
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This water pump is provided with all associated installation components, including:

11518482251 - Water Pump 11518650986 - Water Pump Bracket to Engine Block 11518482263 - Water Pump profile Gasket 11518482264 - Profile Gasket for Bracket to Engine Block 11518482258 - Coolant Pipe to Water Pump 11518482260 - O-ring Seal for Coolant Pipe

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Genuine BMW Engine Oil Cooler - BMW B58 & B58TU 3.0L (B58A & B58D) ...
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Genuine BMW - Corporate Logo
T#:541339
Part#: 11428583901
Ships in 1 day
6% off MSRP $ 266.99

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

$ 250.99 USD
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6% off MSRP
$ 266.99

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

$ 250.99 USD
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Engine oil coolers help reduce the oil temperature, preventing the oil from breaking down prematurely and losing its lubricating properties. Engine oil coolers play a crucial role in regulating oil temperature, ensuring proper lubrication, and optimizing engine performance and longevity. Engine oil that is too hot drops in viscosity and does not provide adequate lubrication to sensitive engine components such as bearings, which can fail catastrophically if not properly lubricated. If your engine oil cooler has been damaged or has failed we recommend replacing it to ensure no damage occurs to your engine.
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PROFILE-GASKET
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Genuine BMW - Corporate Logo
T#:528940
Part#: 11518632587
Ships in 1 day
13% off MSRP $ 38.99

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

$ 33.99 USD
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13% off MSRP
$ 38.99

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

$ 33.99 USD
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This gasket needs to be replaced when splitting apart your pulley housing from the water pump. Gasket that goes between the coolant pump and the coolant pump front pulley assembly.

Fan Clutch Wrench - 32mm
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CTA Tools - Corporate Logo
T#:641760
Part#: CTAA878
Ships on Jul 24, 2026
$ 23.57 USD
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Use to remove and install Fan Clutch Assemblies when replacing Water Pumps or doing other Engine Services
VTT Billet Coolant Reservoir Cap - Anodized Black - Most BMWs 2006+ (...
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Vargas Turbo Technologies - Corporate Logo
T#:7530033
Part#: COOLANTCAPBLK
Back Ordered
$ 79.99 USD
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$ 79.99 USD
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VTT is proud to offer their billet replacement for the factory plastic Coolant Reservoir cap. This cap does away with the weak plastic cap while adding some pop, and color to your engine bay. This coolant cap retains ALL of the factory provisions by simply allowing you to snap the factory pressure-relief into the new Billet Cap. VTT also designed these caps to complement their N5X Billet Oil caps, N5XBillet Oil filter housing caps, and Billet Power Steering cap, so all 4 will have the same design. These caps are offered in 4 colors – Red, Black, Blue, and Clear anodized Replaces Genuine BMW Reservoir Cap # 17117639020 Note: Fitment includes 99% of all BMW with a coolant Reservoir tank from the E series forward, meaning then fit even the brand New G8X M3/4 with the S58, all B58, etc. If your BMW is an E90 or newer this cap most likely will fit
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Schwaben Radiator/ Intercooler Fin Comb
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Schwaben - Corporate Logo
T#:384260
Part#: 015326SCH01A
In Stock
Sale - Save 29% $ 20.99

This product was last offered at the strikethrough price on
05-02-2026

$ 14.99 USD
Free Shipping on orders $49 and up
Sale - Save 29%
$ 20.99

This product was last offered at the strikethrough price on
05-02-2026

$ 14.99 USD
Free Shipping on orders $49 and up
Straighten bent fins in heat exchangers like radiators, condensers, and intercoolers obstruct air flow and reduce heat transfer. Paper-thin fins are easily bent, even by slight pressure.
Genuine BMW Coolant Hose - Waterp Pump to Thermostat Module - BMW G42...
For models with the earlier B48D, B46D, or B46X engines - Not compatible with the later...
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Genuine BMW - Corporate Logo
T#:618269
Part#: 11538650981
In Stock
8% off MSRP $ 109.99

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

$ 100.99 USD
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8% off MSRP
$ 109.99

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

$ 100.99 USD
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Over time, rubber hoses and plastic coolant flanges can become brittle due to numerous heat cycles. This often leads to cracks and coolant leaks on the left side of the engine. Additionally, the two o-rings that seal this hose to the water pump flange and the thermostat module housing can flatten, leading to leaks when reinstalled. When servicing your cooling system, it is advised to replace this hose to prevent leaks and potential overheating. This is especially helpful due to its cramped location, requiring the intake manifold to be removed for replacement.
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Genuine BMW Oil Cooler Gasket Set - 11428583897
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Genuine BMW - Corporate Logo
T#:222843
Part#: 11428583897
Ships in 1 day
13% off MSRP $ 59.99

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

$ 51.99 USD
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13% off MSRP
$ 59.99

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

$ 51.99 USD
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Situated on the engine's oil filter housing, this set of gaskets plays a crucial role in sealing the housing to the engine block. Over time, exposure to heat and oil can cause these rubber gaskets to become brittle, compromising their ability to seal the mating surfaces effectively.

Given that oil flows from the block to the filter housing, any leaks from these seals can lead to significant issues. Fortunately, BMW offers a comprehensive set of these gaskets, providing a solution to all oil leaks and restoring your vehicle to optimal performance.

How can you identify if your oil cooler gaskets are leaking?

Oil drips beneath the car when it's parked. Visible oil accumulation on the intake/heat exchanger side of the engine block. Frequent low oil level warnings during driving.

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Band Hose Clamp | 12-20mm 3/8"/9mm
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ECS - Corporate Logo
T#:304266
Part#: 003402ECS06A-03
In Stock
Sale - Save 25% $ 4.99

This product was last offered at the strikethrough price on
06-13-2026

$ 3.74 USD
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Sale - Save 25%
$ 4.99

This product was last offered at the strikethrough price on
06-13-2026

$ 3.74 USD
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Secure hoses in your BMW effortlessly with the ECS 3/8" / 9mm Band Hose Clamp (12-20mm). Specifically designed for BMW models, this clamp ensures a snug fit and reliable hold for hoses measuring between 12mm to 20mm. Crafted with durable materials, these clamps provide exceptional resistance against leaks and are ideal for various automotive applications. Upgrade your BMW's hose security with these reliable ECS hose clamps.
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BMW Water Pump Gasket
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Elring - Corporate Logo
T#:15247123
Part#: 11518632587
In Stock
$ 20.99

This product was last offered at the strikethrough price on
01-31-2026

$ 13.49 USD
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$ 13.49 USD
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In order to ensure a leak free driving experience, replace these gaskets whenever you change or work on your water pump. If you are noticing small leaks, these might be to blame.
Red Line Water Wetter Coolant Additive
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Redline - Corporate Logo
T#:394769
Part#: REDLINE5A
In Stock
Starting at $ 15.99 USD
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Starting at $ 15.99 USD
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Water Wetter is a unique wetting agent for cooling systems which reduces coolant temperatures by as much as 30*F. This liquid product can be used to provide rust and corrosion protection in plain water for racing engines, which provides much better heat transfer properties than glycol-based antifreeze.
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Red Line Water Wetter Heat Transfer Agent
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Redline - Corporate Logo
T#:3607
Part#: 1-WW-12Z
In Stock
$ 15.99 USD
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Water Wetter is a unique wetting agent for cooling systems which reduces coolant temperatures by as much as 30*F. This liquid product can be used to provide rust and corrosion protection in plain water for racing engines, which provides much better heat transfer properties than glycol-based antifreeze. Or it can be added to new or used antifreeze to improve the heat transfer of ethylene and propylene glycol systems. Designed for modern aluminum, cast iron, copper, brass, and bronze systems.

We have been using RedLine Oil in our street cars and race cars for years. Hands-down, it is the Number One brand of high performance lubricant for BMWs.
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Genuine BMW Isa Screw - 07129905494
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Genuine BMW - Corporate Logo
T#:28891
Part#: 07129905494
Ships Today
5% off MSRP $ 7.74

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

$ 7.33 USD
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5% off MSRP
$ 7.74

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

$ 7.33 USD
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Genuine water pump hardware. M6x16-8.8. 6 of these screws are found in association with the water pump