BMW Cooling System Parts & Accessories for BMW X Series E83 (2004-2010)

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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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Thermostat
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T#:15511826
Part#: 11537549476
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$ 69.99 USD
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Overheating your N52 or N54 engine can be detrimental to the longevity of your engine. We also recommend replacing your hardware 07119903851 x2
Thermostat With Housing
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Bremmen Parts - Corporate Logo
T#:26494584
Part#: 11537509227
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BMW Water Pump - Remanufactured - 11517527799
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URO - Corporate Logo
T#:372932
Part#: 11517527799
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$ 42.99 USD
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Features a metal impeller for reliability

URO - Corporate Logo
T#:591812
Part#: 11537549476
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$ 74.99 USD
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Restore proper function to your cooling system

Upper Radiator Hose - M54
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Bremmen Parts - Corporate Logo
T#:36066204
Part#: 11533400207
In Stock
Sale - Save 20% $ 39.99

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$ 31.99 USD
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This Upper Radiator Hose connects the thermostat housing to the radiator, playing a critical role in the cooling system. Due to constant exposure to high temperatures and chemical-rich engine coolant, it is prone to failure over time. If the hose fails, coolant will escape rapidly, potentially leading to engine overheating.

This high-quality replacement hose from Bremmen Parts features a precision-molded rubber section and two "Quick-Connect" connectors, ensuring a secure and reliable fit for a seamless installation.

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URO Expansion Tank Mounting Plate - E83
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URO - Corporate Logo
T#:593040
Part#: 17113400017
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$ 68.99 USD
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Secures the expansion tank to the radiator

Coolant Expansion Tank - E53 E46 E83 M52 M54
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URO - Corporate Logo
T#:373103
Part#: 17137787039
Ships in 1 Business Day
$ 45.99 USD
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We have found that the expansion tanks should be replaced based on age as well as condition. Expansion tanks seem to have a lifespan of less than six years before they show signs of fatigue and wear. Pre-emptively replacing the expansion tank as part of an overall maintenance plan can prevent you from getting stranded from a sudden failure later on.
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URO - Heater Inlet Pipe - E46, Z3, E39
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T#:34080697
Part#: 11531705210
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$ 34.49 USD
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This runs from the front left side of the cylinder head under the intake manifold toward the firewall.

Radiator Hose - Lower
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Bremmen Parts - Corporate Logo
T#:30729026
Part#: 17123413819
In Stock
$ 46.99

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05-03-2026

$ 34.99 USD
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$ 46.99

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$ 34.99 USD
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URO Water Pump - BMW N52 3.0L
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URO - Corporate Logo
T#:39768338
Part#: 11517586925
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$ 296.99 USD
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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 Lower Radiator Hose - E83 - N52
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URO - Corporate Logo
T#:55821698
Part#: 17123424499
Ships in 1 Business Day
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$ 33.99 USD
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This URO molded lower hose is engineered from advanced Electro-Chemical Degradation (ECD) resistant material, preventing interior breakdown and future leaks
URO - Corporate Logo
T#:50031879
Part#: 17112248409
Ships in 1 Business Day
$ 40.99 USD
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Plastic cooling system components degrade and become brittle with age and heat exposure. This particular part is especially prone to damage during expansion tank removal. Always inspect it whenever the expansion tank is removed and replace it if any cracking or wear is found.
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Bremmen Parts Heater Hose - Supply - E83
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Bremmen Parts - Corporate Logo
T#:1195974
Part#: 64213400415
Ships in 1 day
Sale - Save 5% $ 43.85

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$ 41.66 USD
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$ 43.85

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Feeds coolant from the engine to the heater valve.
Bremmen Parts Water Pipe Connector - E83, Z4
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Bremmen Parts - Corporate Logo
T#:1195932
Part#: 17112248409
Ships on Sep 21, 2026
Sale - Save 3% $ 31.61

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$ 30.66 USD
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Located underneath the expansion tank
Water Pipe - M54 E46 E58 E83
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Bremmen Parts - Corporate Logo
T#:36981061
Part#: 11537502000
In Stock
Sale - Save 49% $ 35.99

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$ 18.50 USD
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Water pipes play a crucial role in maintaining proper engine cooling. If cracked, they must be replaced immediately to prevent engine overheating. This water pipe runs from the rear of the water pump housing to the expansion tank hose. It comes complete with all necessary seals for a hassle-free installation.
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Bremmen Parts O-Ring
Found at the flange end of the upper thermostat hose
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Bremmen Parts - Corporate Logo
T#:399143
Part#: 11537545278
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$ 4.07 USD
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Seals your cooling system

Bremmen Parts - Corporate Logo
T#:640140
Part#: 17111712788
Ships in 8 Business Days
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09-02-2026

$ 2.44 USD
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$ 3.99

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$ 2.44 USD
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Plastic bleeder screw for cooling system is used to bleed air that would otherwise create an air pocket and lead to overheating. Includes o-ring seal.
Radiator Drain Plug
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URO - Corporate Logo
T#:380524
Part#: 17111437361
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$ 3.99 USD
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Usually stripped out after being removed

Coolant Inlet Pipe
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Bremmen Parts - Corporate Logo
T#:36032354
Part#: 11537516414
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$ 9.50 USD
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Bremmen Parts - Corporate Logo
T#:640141
Part#: 13621433077
In Stock
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$ 16.79 USD
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The auxiliary fan switch activates the auxiliary cooling fan to provide additional cooling under high heat loads, and when the car is stationary

URO Silicone Coolant Pipe Repair Kit - BMW N52 3.0L
For vehicles with manual transmission
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URO - Corporate Logo
T#:37757233
Part#: 11537535829RPR
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$ 16.99 USD
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$ 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 Parts Thermostat Assembly - 11537509227
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URO - Corporate Logo
T#:29466801
Part#: 11537509227
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$ 41.99 USD
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$ 41.99 USD
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The thermostat cover in your BMW, made from plastic, is notorious for failing. After years of exposure to hot coolant, the plastic can crack, leading to significant coolant leaks and potential engine overheating.

URO Parts offers a superior solution with their high-quality thermostat cover, designed to surpass the durability of the original factory part. This replacement thermostat comes complete with a gasket for an effortless service.

Features:

Perfect Fit: Guaranteed fitment ensures a seamless replacement process. Optimal Cooling: High-flow OE-style design ensures efficient engine cooling performance. Easy Installation: Manufactured to factory housing dimensions for straightforward bolt-on installation and secure hose connections. Comprehensive Design: Includes ports for temperature sensors where applicable. Superior Materials: Constructed from high-quality alloy or composite materials that resist temperature-induced warping or cracking, preventing coolant leaks. URO Parts, with over 8,000 premium spare parts, specializes in manufacturing precise, durable replacements for factory BMW components. Committed to the highest standards of precision, materials, and workmanship, each part is rigorously tested to deliver the best combination of durability, functionality, and affordability. For reliable replacement parts that offer great value, choose URO Parts.

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Auxiliary Fan Switch O-Ring
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:377077
Part#: 13621433077S
In Stock
$ 0.88 USD
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Now you can just replace the o-ring instead of the whole switch
URO Expansion Tank Mounting Plate - BMW E83 X3
For vehicles with a manual transmission
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:639534
Part#: 17113400018
Ships in 1 Business Day
$ 90.99 USD
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$ 90.99 USD
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Secures the expansion tank to the radiator


URO Thermostat Housing Gasket - BMW M52TU M54
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URO - Corporate Logo
T#:639269
Part#: 11537509357
In Stock
$ 2.99 USD
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Prevent leaks with a brand new thermostat housing gasket from URO
Radiator Drain Plug (Adjustment Screw) - Priced Each
For vehicles with manual transmission only
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URO - Corporate Logo
T#:593031
Part#: 17111437359
Ships in 1 Business Day
$ 8.99 USD
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$ 8.99 USD
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This is the drain plug (adjustment screw) for manual transmission equipped cars.
URO Coolant Hose - BMW E60 E61 E83 N52
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URO - Corporate Logo
T#:639219
Part#: 11537519494
Ships in 1 Business Day
$ 20.99 USD
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Over the years and with exposure to extremely hot coolant, the coolant hoses in your vehicle can take a beating. Being made of reinforced rubber, these hoses can fail in a number of ways. Splitting at a hose clamp, swelling, cracking, and breaking are just a few of the ways this hose can leave you stranded.
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Bremmen Parts Radiator Cooling Fan Assembly - E83
10X Entries Into Our F80 M3 Sweepstakes
Bremmen Parts - Corporate Logo
T#:583598
Part#: 17113442089
Ships in 1 day
$ 623.99 USD
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$ 623.99 USD
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Cooling fan that is mounted behind the radiator

Bremmen Parts Coolant hose - E83
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Bremmen Parts - Corporate Logo
T#:1195976
Part#: 64213400417
Ships in 1 day
Sale - Save 3% $ 43.85

This product was last offered at the strikethrough price on
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$ 42.53 USD
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$ 42.53 USD
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Connects the expansion tank to the heater core
Bremmen Parts Coolant Hose - E9X N52
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Bremmen Parts - Corporate Logo
T#:38621425
Part#: 11537521049
In Stock
Sale - Save 23% $ 18.99

This product was last offered at the strikethrough price on
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$ 14.68 USD
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$ 18.99

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$ 14.68 USD
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Over the years and with exposure to extremely hot coolant, the coolant hoses in your vehicle can take a beating. Being made of reinforced rubber, these hoses can fail in a number of ways. Splitting at a hose clamp, swelling, cracking, and breaking are just a few of the ways this hose can leave you stranded. Replace it at the first sign of wear to keep your coolant in your engine.
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Water Pump Bolt
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Bremmen Parts - Corporate Logo
T#:15478736
Part#: 11 510392553
Ships on Sep 28, 2026
$ 5.99 USD
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Secures the water pump in place.
URO Coolant Pipe O-Ring - BMW N52 3.0L
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URO - Corporate Logo
T#:37892133
Part#: 11517514942
Back Ordered
$ 2.09 USD
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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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Auxiliary Fan Switch
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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

Radiator Drain Plug With Housing
For vehicles with automatic transmission only
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:593032
Part#: 17111437360
In Stock
$ 10.99 USD
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$ 10.99 USD
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This is the drain plug (adjustment screw) for automatic transmission equipped cars.
Radiator Mount
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URO - Corporate Logo
T#:56977984
Part#: 17117514402
Back Ordered
New Item
$ 6.99 USD
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Maintain cooling system stability under spirited street driving and hard track use with this URO Parts replacement upper radiator mount bracket.