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BMW Cooling System Parts & Accessories for BMW X Series E53 (2000-2006)

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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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Victor Reinz Water Pump Gasket - E31, E32, E34, E38, E39, E53 ...

T#:376106

Part#: 11511731372

Ships in 6 Business Days

$ 7.99

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07-23-2026

$ 7.13 USD

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$ 7.13 USD

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Should be replaced each time the water pump is removed

Thermostat With Housing - 105C

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T#:15511816

Part#: 11531436386

Ships in 8 Business Days

Sale - Save 4% $ 30.99

This product was last offered at the strikethrough price on
05-03-2026

$ 29.67 USD

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A thermostat that opens sooner promotes better cooling in your vehicle. Running a lower temperature thermostat will keep everything much cooler. Keeping the engine cooler will help reduce and improve the life of the seals in your engine, saving you time and money, while also help increase engine performance. A tune might be required to gain the most from this modification, as well as to get your car's ECU accustomed to seeing lower temperatures.

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Auxiliary Electric Water Pump

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T#:57014181

Part#: 64116913489

Ships on Oct 14, 2026

$ 75.99 USD

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$ 75.99 USD

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Keep your heating and cooling systems performing sharply with a precision-fit replacement built for long-haul reliability.

Gates Water Valve - E53, E70, E71, F15, F16 , F85, F86

T#:553629

Part#: 64116910544

Ships on Oct 16, 2026

$ 280.00 USD

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$ 280.00 USD

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With additional water pump

Thermostat - 105C

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T#:15511827

Part#: 11537502779

Ships on Oct 21, 2026

$ 46.99

This product was last offered at the strikethrough price on
05-03-2026

$ 45.99 USD

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If your vehicle is experiencing cooling issues, chances are the thermostat is the cause. Common symptoms include prolonged warm-up at highway speeds from the thermostat being stuck open, or consistent overheating issues from the thermostat being stuck in the closed position. Either condition can result in poor performance, and potential damage to vital components in your vehicle.

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Radiator Hose - Upper

T#:57725196

Part#: 17127526856

Ships on Oct 21, 2026

$ 178.99 USD

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$ 178.99 USD

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Manufactured by Burgaflex, this replacement hose utilizes high-strength reinforced rubber engineered to resist expansion under extreme heat and pressure.

Radiator Cooling Fan Assembly

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T#:3077082

Part#: 17427521767

Special Order: No Guaranteed ETA

$ 857.99 USD

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$ 857.99 USD

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This is an entire electric fan assembly that includes both the fan motor itself as well as the fan blade.

Pusher Fan Assembly - E53 X5

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T#:3077101

Part#: 64546921381

Special Order: No Guaranteed ETA

$ 414.99 USD

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$ 414.99 USD

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Replacement Auxiliary Fan Assembly With Shroud from VDO

Bracket - Fan Housing - E53

T#:45872

Part#: 17117505344

Ships in 6 Business Days

3% off MSRP $ 29.99

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

$ 28.99 USD

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3% off MSRP

$ 29.99

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

$ 28.99 USD

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Genuine BMW Bracket, Fan Housing
This item fits the following BMW Chassis:
E53 48IS,E53 X5 X5

Fits BMW Engines including:
M54,M62,N62

Engine Water Pump Gasket Kit

2X Entries Into Our F80 M3 Sweepstakes

T#:54317216

Part#: 359.200

In Stock

$ 12.99

This product was last offered at the strikethrough price on
09-21-2026

$ 11.99 USD

Limited Qty Sale

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$ 12.99

This product was last offered at the strikethrough price on
09-21-2026

$ 11.99 USD

Limited Qty Sale

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This Elring water pump gasket set is the perfect solution for refreshing your BMW's cooling circuit during a water pump service or cooling system overhaul.

Elring Thermostat Gasket - BMW M60 M62 M70 S70

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T#:45005599

Part#: 818.437

Special Order: No Guaranteed ETA

$ 2.99 USD

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$ 2.99 USD

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This rubber gasket seals the junction between the thermostat and water pump Measurements: 4.0x76.5mm

Bremmen Engine Fan Blade - 11 Blades, 420mm - BMW M30 S38 M50 M52 S5...

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T#:640149

Part#: 11521712058

In Stock

Sale - Save 22% $ 23.99

This product was last offered at the strikethrough price on
05-03-2026

$ 18.76 USD

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$ 23.99

This product was last offered at the strikethrough price on
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$ 18.76 USD

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This fan is driven by the serpentine belt, engaged by the fan clutch. If you have bad motor mounts, it's quite common for the blades of this fan to make contact with the radiator or radiator shroud, essentially self-destructing the fan into many pieces. Be sure to get a new fan clutch, while you are replacing this.

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BMW Coolant Flange

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T#:17339424

Part#: 17107500745

Special Order: No Guaranteed ETA

$ 30.99 USD

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$ 30.99 USD

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The piece connects the cooling hoses to the expansion tank. Usually broken when trying to remove the hoses from the connections.

Thermostat With Housing & Gasket

T#:56544033

Part#: 11537586885

Special Order: No Guaranteed ETA

$ 68.99 USD

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$ 68.99 USD

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This Febi Bilstein electronic coolant thermostat assembly delivers factory-level thermal control to keep coolant temperatures stable across varying engine loads.

Fluid Level Sensor

5X Entries Into Our F80 M3 Sweepstakes
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T#:5973204

Part#: 17117546548

Ships on Oct 14, 2026

$ 13.99 USD

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$ 13.99 USD

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MEYLE-ORIGINAL: True to OE fluid level sensor. Used in multiple locations. Wulf Gaertner Autoparts AG manufactures and markets automotive spare parts under its MEYLE brand. Since its foundation in 1958, Wulf Gaertner Autoparts has been an owner-operated, unlisted family business on the aftermarket scene. Since 1995, Wulf Gaertner Autoparts AG has been manufacturing and trading under its MEYLE brand. They pride themselves on top-grade quality-tested spare parts for passenger cars, vans and commercial vehicles. Comparable OE Cross Reference - 17117546548

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Coolant Temperature Sensor

Located on water pump housing

5X Entries Into Our F80 M3 Sweepstakes
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T#:594615

Part#: 13621703993

Ships on Oct 14, 2026

$ 18.99 USD

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This is the coolant temperature sensor used in many BMW models from the mid-1990s to the mid-2000s. The engine computer relies on the coolant temp to set the fuel mapping for the engine. As the car warms up the computer changes the fuel mixture. If your car is running a bit rich (too much fuel) it could be because this sensor is failing and not sending the correct info to the computer.

This sensor is located in a variety of places depending on the engine. But it's one of those easy replacement items 'while you're in there' when doing a water pump or thermostat replacement.

This coolant temp sensor fits the following BMWs:
1996-1999 E36 BMW 323is 323ic 328i 328is 328ic M3, located in cylinder head
1999-2003 E39 BMW 540i, located on side of water pump
1999-2001 E38 BMW 740i 740il, located on side of water pump
1995-1996 E38 BMW 750il, located on side of water pump
1990-1999 E31 BMW 850i 850ci, located on side of water pump
2000-2006 E53 BMW X5 3.0i, located in cylinder head
2000-2006 E53 BMW X5 4.4i/4.6is/4.8is, located on side of water pump
1997-2002 Z3 BMW Z3 2.5i Z3 3.0i, located in cylinder head

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Meyle Engine Coolant Thermostat - BMW FXX, GXX

5X Entries Into Our F80 M3 Sweepstakes

T#:52797701

Part#: 3282280016

Ships on Oct 14, 2026

$ 47.99 USD

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$ 47.99 USD

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This MEYLE thermostat ensures your engine stays at the perfect temperature for efficiency and power.

Auxillary Fan Switch

5X Entries Into Our F80 M3 Sweepstakes
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T#:4934936

Part#: 3148210000

Ships on Oct 14, 2026

$ 18.99 USD

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$ 18.99 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. Also known as the coolant temperature sending unit, comes with related o-ring

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BMW Oil Cooler

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T#:38385318

Part#: 17101439112

Special Order: No Guaranteed ETA

$ 87.99 USD

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$ 87.99 USD

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The heat exchanger regulates engine oil temperature to prevent overheating, reducing the risk of oil breakdown and potential internal engine damage.

Spirolox Clip

2X Entries Into Our F80 M3 Sweepstakes

T#:55821687

Part#: 111414399753

Ships in 1 Business Day

$ 9.99 USD

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$ 9.99 USD

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The ÜRO Parts Spirolox Clip provides the heavy-duty reliability your European vehicle demands, eliminating the structural weak links caused by fatigued or distorted factory hardware.

URO Air Temperature Sensor - BMW X5 M5 525i 528i 530i 540i

2X Entries Into Our F80 M3 Sweepstakes

T#:592644

Part#: 64118391392

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$ 7.99 USD

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$ 7.99 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.

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Bremmen Parts Auxiliary Water Pump Hose - E53

10X Entries Into Our F80 M3 Sweepstakes

T#:1195928

Part#: 11537505949

Back Ordered

Sale - Save 3% $ 110.15

This product was last offered at the strikethrough price on
05-03-2026

$ 106.85 USD

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$ 110.15

This product was last offered at the strikethrough price on
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$ 106.85 USD

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Used for the additional water pump

URO Expansion Tank Hose - E53

2X Entries Into Our F80 M3 Sweepstakes

T#:45278651

Part#: 11537500735

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$ 23.99 USD

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$ 23.99 USD

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A reliable, affordable solution for maintaining cooling system integrity and long-term engine health.

Rein Coolant Return Pipe - N62 N73

2X Entries Into Our F80 M3 Sweepstakes

T#:386411

Part#: 11511439976

Ships in 3 Business Days

$ 14.99

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

$ 13.99 USD

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$ 13.99 USD

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This is the coolant return pipe on the back of the water pump on the N62 and N73 engines used in the E53 X5, E60 545/550, E63 645/650, E65 745/750, E70 X5, and F02 750. This pipe connects the water pump to the valley pan and it's a compression fitting (no o-rings). Whenever the water pump or valley pan are replaced this tube should also be replaced. This is one area where you don't want to go back and re-do your work because of a leaking fitting! In German, Rein means Pure. In the automotive industry the Rein name has quickly come to represent quality. With fitments for some of the worldaEURtms finest automobiles including BMW and Mini and guaranteed OE quality, Rein is a name you can trust.

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Radiator Support Bracket

2X Entries Into Our F80 M3 Sweepstakes

T#:14122755

Part#: 17117514402

Back Ordered

$ 8.99

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

$ 8.24 USD

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$ 8.24 USD

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Mounts to top of radiator bracket, 2 per vehicle.

Auxiliary Fan Switch

2X Entries Into Our F80 M3 Sweepstakes

T#:376847

Part#: 13621433077

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$ 10.99 USD

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$ 10.99 USD

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