BMW Cooling System Parts & Accessories for BMW 7 Series E38 (1995-2001)

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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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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
Starting at $ 192.98 USD
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Starting at $ 192.98 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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Complete Cooling System Overhaul Package - 1999-2003 E39 540i, 1999-2...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Packaged by Turner - Corporate Logo
T#:338704
Part#: TMS14417
Ships on Aug 19, 2026
Sale - Save 7% $ 773.99

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

Starting at $ 721.42 USD
Sale - Save 7%
$ 773.99

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

Starting at $ 721.42 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 1999-2003 540i with the M62TU VAN0S 4.4-liter engine. This package applies to cars equipped with either the manual or automatic transmission (select the appropriate parts in the menu below).

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. Our bundled package includes the following:
  • OEM Behr radiator (select for manual or automatic transmission)
  • OEM water pump (choose either the metal or composite impeller)
  • OE BMW coolant temp sensor (located in the water pump housing)
  • OEM Behr thermostat with housing and sensor
  • OEM Behr expansion tank with cap
  • OE BMW upper and lower radiator hoses with expansion tank hose
    Optional items (which can be added below):
    - OE BMW antifreeze
    - Add a new coolant level sensor (known for failing / throwing "check coolant" messages)
    - Replace the heat exchanger coolant lines for the automatic transmission
    - Add a new fan clutch

    Buy as a package and save $$$!

    This cooling system overhaul kit fits the following BMWs:
    1999-2003 E39 BMW 540i
    1999-2001 E38 BMW 740i 740il
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    Transmission Cooler Hose Set - E39 540i 99-03, E38 740i/iL 99-01 ...
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    Packaged by Turner - Corporate Logo
    T#:338705
    Part#: TMS16592
    Ships in 1 day
    Starting at $ 171.28 USD
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    Starting at $ 171.28 USD
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    The oil cooler/heat exchanger for the automatic transmission is one of the most overlooked sections of the 540i and 740i cooling system. The cooler (heat exchanger) is a part of the overall cooling system and uses coolant circulated from the regular cooling system to cool the transmission oil running through this small cooling block. Some of the hoses are shared with the rest of the cooling system as well. The E38/E39 heat exchanger is located along the driver's side frame rail and is accessed from the wheel well. We recommend servicing or cleaning the heat exchanger along with any cooling system overhaul. Or if you're having transmission faults (especially for temperature) you may want to clean the transmission cooler anyway and these hoses will be a nice finishing touch.

    Replacing or cleaning the heat exchanger components could lead to better shifting of the automatic as the cooler itself can become clogged. If you're experiencing harder or hesitating shifts, and the internal transmission temperature is rising without being regulated, the components in this system are the likely cause. Staying on top of the cooling needs of the transmission will help prevent a very costly transmission repair in the future. These hoses are easily replaced and you can clean the heat exchanger easily with brake cleaner and some brushes.

    Included in this handy package are:
  • 11531711381 - transmission cooling hose from water pump to radiator (with t-connector)
  • 11531711385 - transmission cooling hose from radiator to cooler
  • 11531711384 - transmission cooling hose from cooler to water pump
  • 11537511207 - transmission cooling hose from cooler to chassis
  • hose clamp
  • o-ring


    This hose set fits the following BMWs:
    1999-2003 E39 BMW 540i
    1999-2001 E38 BMW 740i 740il
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    Water Pump & Thermostat Replacement Kit - E39 540i, E38 740i/iL M62 ...
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    Packaged by Turner - Corporate Logo
    T#:30463918
    Part#: 11510393340KT3
    Ships in 3 Business Days
    $ 266.99 USD
    Free Shipping on orders $49 and up
    $ 266.99 USD
    Free Shipping on orders $49 and up

    Maintain your BMW's cooling system and avoid costly repairs with our all-inclusive Water Pump and Thermostat Replacement Kit, expertly crafted by enthusiasts at Turner Motorsport. Designed specifically for your BMW model, this kit ensures proper engine operation at optimal temperatures, preventing overheating and extending engine life.

    Key Benefits:

    Comprehensive Kit: Simplify your cooling system overhaul with all necessary components in one package. High-Quality Parts: Each component meets or exceeds OEM standards, ensuring reliable performance and longevity. Optimal Cooling Performance: Regular water pump and thermostat replacement every 60,000 miles maintains peak cooling efficiency. Enhanced Reliability: Premium components like the Wahler Thermostat and Graf Water Pump ensure durable, long-lasting performance. Why Choose This Kit:

    Maximize Cooling System Performance: Replacing your water pump and thermostat simultaneously ensures your BMW’s cooling system operates efficiently. Protect Your Engine: Properly flushing and refilling your cooling system with Genuine BMW coolant guarantees optimal freeze protection and corrosion resistance. Convenient and Cost-Effective: Combining all essential parts in one kit simplifies maintenance and ensures a thorough, lasting repair. Planning a cooling system overhaul? Opt for this comprehensive thermostat and water pump replacement kit for a lasting repair.

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    Thermostat M62tu - E39 540i E38 740i 1999-2003
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    Mahle-Behr - Corporate Logo
    T#:341080
    Part#: 11531436386
    Ships in 1 Business Day
    $ 173.99

    This product was last offered at the strikethrough price on
    07-08-2026

    $ 152.10 USD
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    $ 152.10 USD
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    Don't take chances! Proper maintenance is required to keep your BMW performing at peak levels. The thermostat basically controls when your car will overheat. The sensor on the housing is also used by the engine computer to set the fuel mapping on the engine. A faulty sensor or thermostat will lead to the engine running rich (too much fuel). This thermostat fits BMW E39 540i 99-03 E38 740i 99-01 X5 4.4i 4.6is 99-2003 with M62 engine.

    Hailing from Stuttgart, Mahle-Behr specializes in automotive cooling systems. From air conditioning to engine cooling M-B has you covered with OE-quality replacement parts.

    This item fits the following BMWs:
    1999-2001  E38 BMW  740i 740il
    1999-2003  E39 BMW  540i
    1999-2003  E53 BMW  X5 4.4i X5 4.6is
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    Fan Clutch - E31, E32, E34, E38, E39 with M60/M62 V8
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    Mahle-Behr - Corporate Logo
    T#:374303
    Part#: 11527502804
    Ships in 1 Business Day
    $ 348.99

    This product was last offered at the strikethrough price on
    05-07-2026

    $ 344.99 USD
    Free Shipping
    $ 344.99 USD
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    This is the viscous fan clutch for the for the engine fan on M60/M62 V8 engines. When the engine is cool or even at normal operating temperature, the fan clutch partially disengages the engine's mechanically-driven radiator cooling fan. This saves power, since the engine does not have to fully drive the fan. If engine temperature rises above the clutch's engagement temperature setting, the fan becomes fully engaged, thus drawing a higher volume of ambient air through the vehicle's radiator, which in turn serves to maintain or lower the engine coolant temperature to an acceptable level.Typically, when the fan clutch fails the car with tend to overheat at idle or in slow moving traffic.

    This item fits the following BMWs:
    1993-1995  E34 BMW  530i 540i
    1997-2003  E39 BMW  540i
    1988-1994  E32 BMW  740i 740il 750il
    1995-2001  E38 BMW  740i 740il 750il
    1990-1999  E31 BMW  840i 840ci 850i 850ci 850csi
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    E39 540i 99-03 Automatic, E38 99-01 OEM Behr Radiator
    For vehicles with automatic transmission and production date from 09/1998
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    Mahle-Behr - Corporate Logo
    T#:341229
    Part#: 17111436063
    Ships in 1-2 days
    $ 388.85 USD
    $ 388.85 USD
    OEM BEHR brand replacement radiator for all 1999-2003 E39 540i (with automatic transsmision) as well as all 1999-2001 E38 7 series (including 740i, 740iL & 750iL). This radiator is made by  BEHR  , an original equipment supplier to BMW. This is the brand we use exclusively on our own 5 & 7 series BMWs, and think you should as well. 

    Hailing from Stuttgart, Mahle-Behr specializes in automotive cooling systems. From air conditioning to engine cooling M-B has you covered with OE-quality replacement parts.

    This BEHR Radiator fits the following BMWs:  
    1999-2003  E39  540i with automatic transmission 
    1999-2001  E38  740i & 740iL (all) 
    1999-2001  E38  750iL (all) 
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    OEM Mahle-Behr Thermostat M62 - E39 540i E38 740i 1996-1998
    For vehicles with production date up to 09/1998
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    Mahle-Behr - Corporate Logo
    T#:361004
    Part#: 11531437526
    In Stock at Vendor
    $ 164.14 USD
    Free Shipping on orders $49 and up
    $ 164.14 USD
    Free Shipping on orders $49 and up
    Don't take chances! Proper maintenance is required to keep your BMW performing at peak levels. The thermostat basically controls when your car will overheat. This thermostat fits BMW E39 540i 97-98 E38 740i 96-98 with M62 engine.

    This item fits the following BMWs:
    1996-1998  E38 BMW  740i 740il
    1997-1998  E39 BMW  540i
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    OEM Behr Coolant Expansion Tank - E39 540i, E38 740i 740il 750il ...
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    Mahle-Behr - Corporate Logo
    T#:361568
    Part#: 17111741167
    In Stock at Vendor
    $ 100.99

    This product was last offered at the strikethrough price on
    05-07-2026

    $ 98.99 USD
    Free Shipping
    $ 98.99 USD
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    This radiator expansion tank (coolant reservoir) is used on E39 540i from 1997-2003 and E38 740i 740il 750il from 1995-2001. It is a common failure item. 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 OEM Hella tank will give you a long life-span and will put your worries to rest of possible failure and coolant loss.

    Hella is a premium manufacturer that supplies automotive parts to numerous car brands across the world. Everything from electrical to mechanical genuine parts have been made and supplied directly to BMW before the vehicles ever leave the production floor. Their high quality, long lasting parts have made them a trusted brand chosen to help keep your BMW on the road for many years to come.

    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!

    This item fits the following BMWs:
    1997-2003 E39 BMW 540i, 540i wagon
    1995-2001 E38 BMW 740i 740il 750il
    1990-1998 E31 BMW 840i 840ci 850i 850ci
    2000-2003 E52 BMW Z8

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    OEM Mahle-Behr Radiator Fan Shroud - E39 540i, E38 740i/il, 750il, E3...
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    Mahle-Behr - Corporate Logo
    T#:7392
    Part#: 17101440252
    Ships in 2 Business Days
    $ 122.62 USD
    $ 122.62 USD
    This is a direct replacement for the factory black plastic BMW radiator fan shroud for E31, E38, E39 with M60 and M62 V8 engines and M70, M73 V12 engines.

    When doing any sort of repair or maintenance there is no replacement for genuine factory parts. Turner Motorsport carries the Genuine BMW brand with pride and has the parts you need to complete your next project with confidence.

    This item fits the following BMWs:
    1997-2003 E39 BMW 540i
    1995-2001 E38 BMW 740i 740il 750il
    1990-1999 E31 BMW 840i 840ci 850i 850ci 850csi
    2000-2003 E52 BMW Z8 Alpina
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    E39 528i/540i 97-98 (Manual, Automatic), E38 740i/iL, 750iL 95-98 OEM...
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    Mahle-Behr - Corporate Logo
    T#:361881
    Part#: 17111702969
    Ships on Jul 24, 2026
    $ 310.99 USD
    $ 310.99 USD
    OEM replacement radiator for all 1997-1998 E39 5 Series (528i & 540i) as well as all 1995-1998 E38 7 Series (740i, 740iL & 750iL). This radiator is made by  BEHR , an original equipment supplier to BMW. This is the brand we use exclusively on our own 5 & 7 series BMWs, and think you should as well.

    Hailing from Stuttgart, Mahle-Behr specializes in automotive cooling systems. From air conditioning to engine cooling M-B has you covered with OE-quality replacement parts.​

    This BEHR Radiator fits the following BMWs:
    1997-1998  E39  528i (manual & automatic)
    1997-1998  E39  540i (manual & automatic)
    1995-1998  E38  740i & 740iL
    1995-1997  E38  750iL
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    OEM Behr Coolant Expansion Tank Cap - E36 E46 E34 E39 E32 E38 E65 X3 ...
    affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
    Mahle-Behr - Corporate Logo
    T#:2766
    Part#: 17111742231
    In Stock
    $ 19.99 USD
    Free Shipping on orders $49 and up
    This radiator expansion tank cap is used most BMW's from 1991-2006. It is a common failure item. When this item fails, it cannot hold pressure which results in your BMW overheating. If you are overhauling your coolant system, now is the time to consider preventative replacing this cap. It is also referred to as the coolant reservoir cap.

    Hailing from Stuttgart, Mahle-Behr specializes in automotive cooling systems. From air conditioning to engine cooling M-B has you covered with OE-quality replacement parts.

    This item fits the following BMWs:
    1990-1991 E30 BMW 318i 318is 318ic
    1992-1998 E36 BMW 318i 318is 318ic 323is 323ic 325i 325is 325ic 328i 328is M3
    1999-2005 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi M3
    1989-1995 E34 BMW 530i 535i 540i M5
    1991-1995 E34 BMW 525i
    1997-2003 E39 BMW 525i 528i 530i 540i M5
    1989-1994 E32 BMW 735i 735il 740i 740il 750il
    1995-2001 E38 BMW 740i 740il 750il
    2002-2008 E65 BMW 745i 745li 750i 750li 760i 760li
    1990-1998 E31 BMW 840i 840ci 850i 850ci 850csi
    2004-2011 E83 BMW X3 2.5i X3 3.0i X3 3.0si
    2000-2006 E53 BMW X5 30.0i X5 4.4i X5 4.6is X5 4.8is
    1996-2002 Z3 BMW Z3 1.9 Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i M Coupe M Roadster
    2003-2008 E85 BMW Z4 2.5i Z4 3.0i Z4 3.0si M Roadster M Coupe
    2000-2003 E52 BMW Z8 Z8 Alpina
    2007+ E90 BMW 335i & 335xi
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