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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Thermostat Replacement kit - 90C
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Packaged by Turner - Corporate Logo
T#:15744051
Part#: 82142209769KT
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Coolant Expansion Tank - E46 (non-M), X3, X5 3.0
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Packaged by Turner - Corporate Logo
T#:338020
Part#: 17117573781
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This coolant reservoir is for the non-M E46 3-series models from 1999-2006 (M3 takes a different expansion tank). 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. This is the most recent expansion tank design from Hella-Behr, the OEM supplier to BMW. It replaces the original BMW part number 17137787039.

Other items to consider replacing at the same time are the radiator cap, coolant level sensor, lower radiator hose, coolant temp sensor in the lower hose, and the hose clamps. If your car has an automatic transmission you should also replace the oil cooler thermostat in the radiator frame, which is a common source for leaks.

This coolant expansion tank fits:

1999-2006 E46 3 series - 323i, 323Ci, 325i, 325Ci, 325xi, 328i, 328Ci, 330i, 330Ci & 330xi (**no M)
2004-2008 X3 SAV - X3 2.5, X3 3.0, X3 3.0si
2000-2005 X5 SAV - X5 3.0
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Water Pump - E39 540i E38 740i/il E53 X5 4.4i 4.6is
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Packaged by Turner - Corporate Logo
T#:348558
Part#: 11510393336DK
Ships in 3 Business Days
$ 192.99

This product was last offered at the strikethrough price on
07-15-2026

Starting at $ 180.98 USD
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Don't take your car's cooling system for granted!One of the biggest weak points is the cooling system. Replacing your water pump will go a long way for keeping your car on the road and operating properly. This water pump fits BMW 1999-2001 E38 740i/740iL, 1999-2003 E39 540i, 1999-2003 E53 X5 4.4i and 4.6is with M62TU 4.4L (4.6L for the 4.6is) engine.

Choose from a water pump with a metal or composite impeller.
This water pump comes complete with housing profile gasket and o-rings.

This item fits the following BMWs:
1999-2003  E39 BMW  540i 540i touring
1999-2001  E38 BMW  740i 740il
2000-2003  E53 BMW  X5 4.4i X5 4.6is
2000-2003  E52 BMW  Z8 Alpina
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Heater Hard Line replacement Kit
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Packaged by Turner - Corporate Logo
T#:15777306
Part#: 11531705210-KT
Ships on Nov 12, 2026
$ 259.99

This product was last offered at the strikethrough price on
04-28-2026

$ 251.99 USD
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Includes every thing needed to replace heater coolant hard lines, includes gaskets, hoses, and a URO aluminum return line!

Packaged by Turner - Corporate Logo
T#:554073
Part#: 11537509227KT3
Ships on Feb 22, 2027
$ 103.99 USD
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When it comes time to replace your thermostat, be sure you have everything you need. This kit includes everything you need to replace your thermostat, including the thermostat.

Kit includes:

  • Mahle-Behr thermostat with gasket
  • Thermostat mounting hardware
  • 1 liter of coolant

Applications:
1999-2003 E39 528i, 525i, 530i sedan, touring wagon (M52TU engine, M54 engine)
1999-2005 E46 323, 328, 325, 330 sedan, coupe, cabrio, touring wagon (M52TU engine, M54 engine)
2004-2005 E60 525i, 530i sedan, touring wagon (M54 engine)
2001-2006 E53 X5 3.0 (M54 engine)
2004-2006 E83 X3 2.5i X3 3.0i (M54 engine)
1999-2002 Z3 2.3. Z3 2.5i, 2.8 Z3 3.0i (M54 engine)
2003-2005 Z4 2.5i, Z4 3.0 (M54 engine)

 

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Basic Cooling System Service Kit - E53 X5 M54 3.0L
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Packaged by Turner - Corporate Logo
T#:557190
Part#: E53X5M54BCKT
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$ 392.29 USD
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Just like the rest of your vehicle's major systems, the cooling system must also be addressed periodically to ensure proper cooling and component reliability. Plastic and rubber components become brittle and prone to splitting or cracking after long periods of heating and cooling cycles, especially in colder climates! The coolant itself can degrade or become contaminated, leading to potential corrosion or freezing issues. Finally, thermostats and sensors can fail completely, preventing proper cooling and/or coolant temperature readings to become inaccurate.

To make sure you are not left stranded on the side of the road with an overheated engine, we have put together this Basic Cooling System Service kit. This kit contains all of the most-likely-to-fail components, giving you peace of mind knowing your engine will continue to run cool for another 60,000+ miles.

See kit contents below for all included components.

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High Performance Metal Water Pump & Pulley Kit - M54
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Packaged by Turner - Corporate Logo
T#:55749612
Part#: 888010330KT3
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$ 299.99 USD
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Valley Pan Service Kit - Level 2
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Packaged by Turner - Corporate Logo
T#:15777315
Part#: 11141742042-KT
Ships on Oct 7, 2026
$ 464.99

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04-06-2026

$ 456.99 USD
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Valley pan gaskets are a common failure on the M62 motors, Symptoms can include a smell of coolant regularly or a mysterious loss of coolant with no identifiable leaks. This kit contains the basics need to be replaced when doing a valley pan gasket. The included Geba water pump has a metal impeller to replace the failure prone plastic OEM impeller. It is always a good idea to replace the accessory belts when ever they need to be removed to ensure proper tension and belt integrity. Kit includes Valley pan with rubber gasket: updated valley pan alleviates the core of the issue - the design! Valley pan securing hardware Valley pan heat shield Water pipe o-rings Water cross over gaskets Throttle body gasket Geba water pump with gasket Intake gaskets Accessory belt A/C belt
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Water Pipe Service Kit
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Packaged by Turner - Corporate Logo
T#:15710777
Part#: 135475104330-KT
Ships in 5 Business Days
$ 568.99

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

$ 535.99 USD
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$ 535.99 USD
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The water pipe in N62-equipped BMWs is prone to failure and can be a very costly and time-consuming job to undertake. This failure can happen at any time or mileage and some times without warning. This kit from Turner Motorsport includes a URO collapsible water pipe that makes this job much easier and faster since you do not have to tear down the front of the engine, as well as a new valley pan with an upgraded seal to prevent leaks.
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Cooling System Overhaul Kit - E53 X5 4.4/4.8
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Packaged by Turner - Corporate Logo
T#:554541
Part#: 17101439101KT2
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$ 991.09 USD
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This is a compete cooling system overhaul kit, which includes all the common cooling system failure parts bundled into a complete package. This cooling system package is for the E53 with the N62 engine. 

A failure in the cooling system can lead to overheating and catastrophic engine failure. Don't gamble your engine! By replacing these core items preventatively, such as the thermostat housing, radiator, and waterpump, you are defusing what could be a ticking cooling system time bomb. And if you've had a failure of one of these parts, now is the time to refresh your entire cooling system. Keep on top of the cooling needs of your engine for your own piece of mind. Potential buyers also see the upside of a properly maintained car with receipts.
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Automatic Transmission Thermostat Kit
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Packaged by Turner - Corporate Logo
T#:57122955
Part#: 17111438819KT2
Ships on Dec 23, 2026
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$ 93.66 USD
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Keeping your E53 X5 automatic transmission cool is essential for longevity and peak performance. The factory transmission thermostat circuit relies on plastic housings and o-ring seals that deteriorate over time. When the transmission thermostat fails or it's mounting assembly cracks, coolant loss follows putting your transmission at risk of overheating under load.
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Packaged by Turner - Corporate Logo
T#:554559
Part#: 11517527910KT19
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$ 853.26 USD
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$ 853.26 USD

This is a compete cooling system overhaul kit, which includes all the common cooling system failure parts bundled into a complete package. This cooling system package is for the E53 with the M54 engine. 

A failure in the cooling system can lead to overheating and catastrophic engine failure. Don't gamble your engine! By replacing these core items preventatively, such as the thermostat housing, radiator, and waterpump, you are defusing what could be a ticking cooling system time bomb. And if you've had a failure of one of these parts, now is the time to refresh your entire cooling system. Keep on top of the cooling needs of your engine for your own piece of mind. Potential buyers also see the upside of a properly maintained car with receipts. 

 

This kit fits the following BMWs:

09/2002 - 2006 - E53 3.0i with automatic transmission 

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Cooling System overhaul Kit - E53 3.0i Manual Transmission
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:554543
Part#: 11517527910KT16
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Sale - Save 1% $ 1,025.99

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$ 1,019.65 USD
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This product was last offered at the strikethrough price on
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$ 1,019.65 USD

This is a compete cooling system overhaul kit, which includes all the common cooling system failure parts bundled into a complete package. This cooling system package is for the E53 with the M54 engine. 

A failure in the cooling system can lead to overheating and catastrophic engine failure. Don't gamble your engine! By replacing these core items preventatively, such as the thermostat housing, radiator, and waterpump, you are defusing what could be a ticking cooling system time bomb. And if you've had a failure of one of these parts, now is the time to refresh your entire cooling system. Keep on top of the cooling needs of your engine for your own piece of mind. Potential buyers also see the upside of a properly maintained car with receipts. 

 

This kit fits the following BMWs:

2000 - 0/2002 - E53 3.0i with manual transmission 

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Cooling System overhaul Kit - E53 3.0i Manual Transmission
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:554542
Part#: 11517527910KT15
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Sale - Save 1% $ 1,006.99

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$ 999.72 USD
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$ 1,006.99

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

$ 999.72 USD

This is a compete cooling system overhaul kit, which includes all the common cooling system failure parts bundled into a complete package. This cooling system package is for the E53 with the M54 engine. 

A failure in the cooling system can lead to overheating and catastrophic engine failure. Don't gamble your engine! By replacing these core items preventatively, such as the thermostat housing, radiator, and waterpump, you are defusing what could be a ticking cooling system time bomb. And if you've had a failure of one of these parts, now is the time to refresh your entire cooling system. Keep on top of the cooling needs of your engine for your own piece of mind. Potential buyers also see the upside of a properly maintained car with receipts. 

 

This kit fits the following BMWs:

09/2002 - 2006 - E53 3.0i with manual transmission 

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Packaged by Turner - Corporate Logo
T#:554557
Part#: 11517527910KT18
Back Ordered
Sale - Save 1% $ 955.99

This product was last offered at the strikethrough price on
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$ 950.78 USD
Sale - Save 1%
$ 955.99

This product was last offered at the strikethrough price on
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$ 950.78 USD

This is a compete cooling system overhaul kit, which includes all the common cooling system failure parts bundled into a complete package. This cooling system package is for the E53 with the M54 engine. 

A failure in the cooling system can lead to overheating and catastrophic engine failure. Don't gamble your engine! By replacing these core items preventatively, such as the thermostat housing, radiator, and waterpump, you are defusing what could be a ticking cooling system time bomb. And if you've had a failure of one of these parts, now is the time to refresh your entire cooling system. Keep on top of the cooling needs of your engine for your own piece of mind. Potential buyers also see the upside of a properly maintained car with receipts. 

 

This kit fits the following BMWs:

2000 - 09/2002 - E53 3.0i with automatic transmission 

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Bav Auto Spill-Proof Coolant / Antifreeze Funnel
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Bav Auto Tools - Corporate Logo
T#:580395
Part#: B8800082
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Multiple adapters include to fit a variety of vehicles.

Bav Auto Fan Clutch Wrench - 32mm
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Bav Auto Tools - Corporate Logo
T#:580348
Part#: B8800019
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Used to remove your fan clutch
Bav Auto Tools - Corporate Logo
T#:580397
Part#: B8800084
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$ 124.94 USD
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Bav Auto Fan Pulley Holder
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Bav Auto Tools - Corporate Logo
T#:580358
Part#: B8800031
Ships on Feb 1, 2027
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Used to remove your fan clutch
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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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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BMW Radiator Expansion Tank Pressure Fitting
Requires the use of a Motive Power Bleeder, sold separately
Motive - Corporate Logo
T#:380462
Part#: 1175
Ships on Sep 23, 2026
$ 24.99 USD
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Allows you to check for leaks in the coolant system