BMW Cooling System Parts & Accessories for BMW 3 Series E93 (2007-2013)

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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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Turner Motorsport - Corporate Logo
T#:12806793
Part#: 008378LA02
In Stock
Sale - Save 20% $ 479.99

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

$ 383.99 USD
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Sale - Save 20%
$ 479.99

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

$ 383.99 USD
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Our Turner Motorsport's full aluminum expansion tank was designed and engineered in house to help with the weak point in your N52/N54 cooling system. The coolant expansion tank goes through heat cycles over and over again from regular driving, it is important that your expansion tank is doing its job to retain coolant to keep your engine operating temperatures down and keep your engine bay clean. Not only is this a major upgrade but also a great maintenance item to replace. Our expansion tank was designed to fit the OEM hoses for an easy install and comes with all the upgraded items you will need for a clean install

If your BMW needs a new expansion tank, make sure this is the last expansion tank you ever need to buy. Our coolant expansion tank has a full aluminum construction and wrinkle black powder coat for durability. Expansion tank kit comes with all the accessories you need to replace your expansion tank once, and never have to worry about it again.

Product Features:

Maintains stock coolant capacity and expansion volume
Designed to maintain OE coolant elevation, preventing air pockets
Baffled tank ensures that air pockets cannot be introduced during aggressive driving and provides accurate coolant level reading
Carefully designed bleed passage prevents the introduction of air as the engine cools
Turner engraved internal fill level
TIG welded 5052 aluminum construction
All bungs are machined to fit factory hose ends
Kit contents:

Turner Aluminum Expansion Tank
Coolant level sensor
Expansion tank cap
Heavy duty bleeder screw
Flared coolant pressure release line
Hardware for installation

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Turner Motorsport - Corporate Logo
T#:21735881
Part#: 053082LA01
In Stock
Sale - Save 25% $ 75.99

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

$ 56.99 USD
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Sale - Save 25%
$ 75.99

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

$ 56.99 USD
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Upgraded or replacement silicone heater hose for our N54 expansion tank relocation kits.

60" silicone performance coolant hose featuring a molded 90-degree bend for installs with space constraints.

Features and benefits:

Constructed of 4-Ply reinforced silicone for improved durability over the failure-prone rubber hoses.
Reduced thermal conductivity
Improved resistance to ozone and UV degradation for improved performance and durability.
Turner branded

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Turner Motorsport - Corporate Logo
T#:568366
Part#: 021942TMS05
In Stock
Sale - Save 25% $ 26.99

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

$ 20.24 USD
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Sale - Save 25%
$ 26.99

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

$ 20.24 USD
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The E9X/ E8X N54 Expansion Tank Wire harness is perfect for those running a relocated coolant reservoir tank. This harness plugs right into the factory connector allowing you to extend the position of the sensor without the need to splice any wires.
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Turner Motorsport - Corporate Logo
T#:338927
Part#: HOSE-CLAMPS
In Stock
Sale - Save 3% $ 3.99

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

Starting at $ 3.87 USD
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Sale - Save 3%
$ 3.99

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

Starting at $ 3.87 USD
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Hose clamps for radiator hoses, coolant hoses, vacuum hoses, or intake hoses. These hose clamps are the same style as your OEM hoses with a smooth inside band to prevent cutting into the hose material.
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URO - Corporate Logo
T#:26171674
Part#: 64216983858
In Stock
$ 44.99 USD
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Ensure optimal engine cooling in your BMW with these high-quality cooling pipes and hoses. Designed to maintain proper engine temperature, immediate replacement is necessary if cracks are detected to prevent engine overheating. This specific coolant supply hose serves the heater core, crucial for efficient heating in your vehicle.
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URO - Corporate Logo
T#:7624638
Part#: 17117521781
In Stock
$ 22.98 USD
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$ 22.98 USD
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Commonly broken when opened to drain the radiator.

URO - Corporate Logo
T#:37959694
Part#: 17107523260
In Stock
$ 56.99 USD
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Constructed from high-strength, heat-resistant plastic, this component is designed to endure extreme temperatures and fluctuating pressure levels, ensuring the cooling system functions optimally and maintains peak efficiency.
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URO - Corporate Logo
T#:591812
Part#: 11537549476
In Stock
$ 74.99 USD
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Restore proper function to your cooling system

URO - Corporate Logo
T#:37892140
Part#: 17127548229
In Stock
$ 97.99 USD
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URO Water Hose Assembly - BMW E9X E82 E88

Engineered to meet OE dimensions, the URO Water Hose Assembly ensures easy installation and reliable hose connections for BMW E9X, E82, and E88 models. The high-strength alloy or composite pipe material is designed to withstand intense engine heat and corrosive coolant, providing long-lasting durability. It resists warping and cracking, preventing coolant leaks and maintaining optimal engine performance. This assembly is a dependable solution for BMW owners seeking to enhance their vehicle’s cooling system reliability.

Key Benefits:

  • Manufactured to OE dimensions for easy installation and secure hose connections.
  • High-strength alloy or composite pipe material resists intense engine heat and corrosive coolant.
  • Prevents warping and cracking to avoid coolant leaks.
  • Ensures reliable cooling system performance.
  • Specifically designed for BMW E9X, E82, and E88 models.
  • Enhances durability and longevity of the cooling system.
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URO - Corporate Logo
T#:384250
Part#: 17137640514
In Stock
$ 60.74 USD
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The coolant expansion tank in your vehicle gives additional fluid a place to go after expansion and contraction from temperature change. Because it is subjected to such drastic changes on a regular basis, it can often crack or break. You want to keep all the coolant in your vehicle in the cooling system. If your tank has experienced damage such as cracking, nipples breaking off, or mounting point damage, you will need to replace it.
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URO - Corporate Logo
T#:592945
Part#: 11537541992
In Stock
$ 31.42 USD
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Heavy Duty Aluminum Connector; Cylinder Head to T-Stat Housing
URO - Corporate Logo
T#:43750237
Part#: 17117524710
Ships in 1 Business Day
$ 33.99 USD
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$ 33.99 USD
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This hose runs from the lower coolant pipe on the passenger side of automatic transmission cars.


URO - Corporate Logo
T#:39768338
Part#: 11517586925
In Stock
Sale - Save 10% $ 296.99

This product was last offered at the strikethrough price on
07-13-2026

$ 267.29 USD
Free Shipping on orders $49 and up
Sale - Save 10%
$ 296.99

This product was last offered at the strikethrough price on
07-13-2026

$ 267.29 USD
Free Shipping on orders $49 and up
If your engine is over heating or you have noticed coolant loss, there is a chance your water pump has failed. This URO replacement is a great option to get your BMW back on the road without breaking the bank.
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URO - Corporate Logo
T#:29466802
Part#: 11537601158
Ships in 1 Business Day
$ 78.00 USD
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If your vehicle is struggling with cooling problems, the thermostat might be to blame. Symptoms such as extended warm-up times on the highway due to a thermostat stuck open or persistent overheating from a thermostat stuck closed can significantly impact performance and damage critical engine components.

Fortunately, URO Parts provides an exceptional replacement solution. Their high-quality thermostat is designed to match the functionality of the original factory unit, ensuring your vehicle operates at the correct temperature once again.

Key Features:

Guaranteed Fit: Designed for perfect compatibility, ensuring a hassle-free installation. Efficient Cooling: OE-style high-flow design promotes optimal engine cooling performance. Easy Installation: The thermostat housing assembly matches factory dimensions for quick bolt-on installation and secure hose connections. Comprehensive Compatibility: Includes ports for temperature sensors where necessary. Durable Construction: Made from high-quality alloy or composite materials that resist warping and cracking, preventing coolant leaks. URO Parts offers an extensive range of over 8,000 premium spare parts, specializing in replacements for factory BMW components. Their commitment to excellence is reflected in their meticulous manufacturing standards, focusing on precision, durability, and value. For reliable and affordable replacement parts, trust URO Parts to keep your vehicle running smoothly.

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URO - Corporate Logo
T#:30463942
Part#: 17127540127
Ships in 1 Business Day
$ 28.99 USD
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URO - Corporate Logo
T#:37892090
Part#: 13621433076
In Stock
$ 10.34 USD
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Temperature sensor for monitoring coolant and oil

Silicone Coolant Pipe Repair Kit
For vehicles with automatic transmission only
URO - Corporate Logo
T#:639584
Part#: 11537558523RPR
In Stock
$ 14.99 USD
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$ 14.99 USD
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URO Parts is one of the leading manufacturers of high quality direct replacement aftermarket components, covering a wide range of makes and models. All of their replacement parts are manufactured to ISO 9000 certification standards, so you can expect long lasting performance from URO Parts. As a leading source of high performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts. All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform!
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URO - Corporate Logo
T#:373591
Part#: 17117521071
In Stock
$ 18.99

This product was last offered at the strikethrough price on
03-09-2026

$ 14.49 USD
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$ 14.49 USD
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Keep that coolant expansion tank sealed

URO - Corporate Logo
T#:377077
Part#: 13621433077S
In Stock
$ 0.88

This product was last offered at the strikethrough price on
08-13-2026

$ 0.86 USD
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$ 0.86 USD
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Now you can just replace the o-ring instead of the whole switch
URO - Corporate Logo
T#:1196209
Part#: 17111711987
Ships in 1 Business Day
$ 3.99 USD
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Fits various components in the cooling system

URO - Corporate Logo
T#:5416748
Part#: 11537793373
In Stock
$ 1.99 USD
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URO Coolant Bleeder Screw - Priced Each - BMW E9X F10

The URO Coolant Bleeder Screw - Priced Each - BMW E9X F10 is a crucial component for maintaining optimal performance in your BMW's cooling system. When performing routine service, ensuring that all air pockets are removed from the coolant system is vital for proper function. Air pockets in the cooling system can prevent heat from circulating properly, potentially causing issues such as reduced heating efficiency or even engine overheating if trapped behind the thermostat.

  • Ensures proper air removal from the cooling system for improved engine performance
  • Prevents air pockets from interfering with heat circulation and engine cooling
  • Easy installation for an efficient and secure fit
  • Durable construction designed to withstand high pressure and temperature conditions
  • Helps maintain a fully functional cooling system, avoiding overheating and damage
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URO - Corporate Logo
T#:593028
Part#: 17107524914
In Stock
$ 49.99 USD
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Plastic side frame for radiator
URO Silicone Coolant Pipe Repair Kit - BMW N52 3.0L
For vehicles with manual transmission
URO - Corporate Logo
T#:37757233
Part#: 11537535829RPR
In Stock
$ 16.99 USD
Free Shipping on orders $49 and up
$ 16.99 USD
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This silicone coolant pipe repair kit replaces the factory rubber hose section found on the coolant pipe that runs from the engine block to the water pump, BMW p/n 11537535829. The factory rubber hose tends to split over time, leading to coolant loss. Silicone hose lasts significantly longer than rubber hose, ensuring leak-free engine operation for many years.
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URO - Corporate Logo
T#:43750242
Part#: 11515A05704
In Stock
$ 333.99 USD
Free Shipping on orders $49 and up
If your water pump is starting to fail, you may notice coolant leaks, or even hear a whining noise coming from under the hood. If you think your water pump is starting to fail, replace it as soon as you can. Keep your eyes peeled for warning signs it may be time to replace your water pump. N54 and N55 engines are prone to water pump failure - replace every 60,000 miles.
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URO - Corporate Logo
T#:373099
Part#: 17137516004
Ships in 1 Business Day
$ 15.99

This product was last offered at the strikethrough price on
04-10-2026

$ 10.99 USD
Free Shipping on orders $49 and up
$ 10.99 USD
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The coolant expansion tank cap keeps necessary pressure on your coolant to increase efficiency. If you have an overheating issue in your vehicle, a simple, quick, and inexpensive part to replace is this cap.
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URO - Corporate Logo
T#:593045
Part#: 17117805310
Ships in 1 Business Day
$ 18.99 USD
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Found at the bottom of the radiator
URO - Corporate Logo
T#:37892133
Part#: 11517514942
Back Ordered
$ 2.09 USD
Free Shipping on orders $49 and up

URO Coolant Pipe O-Ring - BMW N52 3.0L

Engineered to meet OE coolant pipe o-ring dimensions, the URO Coolant Pipe O-Ring ensures easy installation and a perfect fit for BMW N52 3.0L engines. It is designed to resist cooling system heat and antifreeze, providing reliable performance under demanding conditions. Constructed from durable ECD (Electro Chemical Degradation)-resistant EPDM material, it helps prevent electrolysis, extending the lifespan of your cooling system. With a temperature rating of -40º F to 275º F (-40º C to 135º C), this o-ring is built to withstand extreme temperatures. Supported by a 24-month unlimited mileage warranty, it is a dependable solution for maintaining your BMW’s cooling system efficiency.

Key Benefits:

  • Precision-molded to OE dimensions for easy installation and perfect fit.
  • Resists cooling system heat and antifreeze for reliable performance.
  • Durable ECD-resistant EPDM material prevents electrolysis.
  • Temperature rating of -40º F to 275º F for extreme condition durability.
  • Includes a 24-month unlimited mileage warranty for peace of mind.
  • Specifically designed for BMW N52 3.0L engines.
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URO - Corporate Logo
T#:376847
Part#: 13621433077
Ships in 1 Business Day
$ 10.99 USD
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$ 10.99 USD
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Comes with related o-ring

URO - Corporate Logo
T#:56977974
Part#: 17127618510
Back Ordered
New Item
$ 27.99 USD
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URO Parts delivers a reliable aftermarket solution engineered to match original factory specifications for precise fitment and sustained durability.