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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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T#:348558

Part#: 11510393336DK

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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...

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T#:338704

Part#: TMS14417

Ships on Aug 19, 2026

Sale - Save 4% $ 773.99

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

Starting at $ 743.31 USD

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Sale - Save 4%

$ 773.99

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

Starting at $ 743.31 USD

Add to Wish List

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 ...

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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 ...

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T#:30463918

Part#: 11510393340KT3

Ships in 1 day

$ 266.99 USD

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$ 266.99 USD

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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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OEM Febi Auxiliary Fan Switch

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T#:340712

Part#: 13621433077

Ships on Oct 6, 2026

$ 29.99 USD

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$ 29.99 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.

Engine Fan - E31 E32 E34 E38 E39 with V8

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T#:4528

Part#: 11521712110

In Stock at Vendor

$ 83.64

This product was last offered at the strikethrough price on
05-29-2026

$ 74.27 USD

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$ 74.27 USD

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11 blade engine fan for cars with M60 M62 and S62 V8 engines. Since the late 1800’s Febi has been fabricating replacement metal parts. This history is self-evident in the quality and vast amount of applications they serve. With more than 34,000 repair solutions for cars and commercial vehicles, you can be sure Febi has you covered.

This item fits the following BMWs:
1993-1995 E34 BMW 530i 540i
1997-2003 E39 BMW 540i M5
1992-1994 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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BMW Coolant / Antifreeze - 1.5L

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T#:16175674

Part#: 82141467704

Ships on Oct 6, 2026

$ 70.99 USD

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$ 70.99 USD

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Coolant G11 (Concentrate). The right anti-freeze agent makes a key contribution towards the reliable functioning of the engine cooling system under all operating and weather conditions. Cooler anti-freeze agents from Febi are precisely matched to the special requirements of the vehicle manufacturer and offer reliable protection from damages caused by freezing, corrosion, and cavitation. A good functioning cooling system is a primary prerequisite for the optimum operation of the engine. The ideal mixing ratio is 1:1, which offers frost protection to -36° C. With a ratio of 1:1 of water and concentrate, the boiling point of the cooling is approximately 107° C.+ High protection against freezing, corrosion, and cavitation Prevention of deposits and foam formation

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Febi Coolant Level Sensor - E31, E38, E39

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T#:341632

Part#: 61318360876

In Stock

$ 14.99 USD

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$ 14.99 USD

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Monitors the coolant level in the expansion tank

Febi Radiator Fan Clutch - E31, E32, E34, E38, E39

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T#:341629

Part#: 11527502804

Special Order: No Guaranteed ETA

$ 109.99 USD

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$ 109.99 USD

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Quality aftermarket replacement

Febi Coolant Hose - E38, E39

For vehicles with production date up to 09/1998

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T#:381793

Part#: 11531745595

Special Order: No Guaranteed ETA

$ 22.99 USD

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$ 22.99 USD

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Replacement upper radiator hose. This is an OEM BMW replacement hose.

This item fits the following BMWs:
1997-1998 E39 BMW 540i
1996-1998 E38 BMW 740i 740il

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Febi Radiator Hose - Lower - E38, E39

For vehicles with production date up to 09/1998

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T#:382399

Part#: 11531741409

Special Order: No Guaranteed ETA

$ 22.99 USD

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$ 22.99 USD

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Replacement lower radiator hose. This is an OEM BMW replacement hose.

This item fits the following BMWs:
1997-1998   E39 BMW   540i
1996-1998   E38 BMW   740i 740il

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Febi Coolant Expansion Tank - E31, E38, E39

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T#:381841

Part#: 17111741167

Special Order: No Guaranteed ETA

$ 90.99 USD

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$ 90.99 USD

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Replace your cracked or faded expansion tank.

Febi Expansion Tank Hose - E31, E38, E39

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T#:6969

Part#: 11531741404

Special Order: No Guaranteed ETA

$ 22.99 USD

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$ 22.99 USD

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ENGINE WATER HOSE 11531741404

Febi Coolant Temperature Sender - E31, E32, E34, E36, E38

Located in the water accumulator Located in the cylinder head

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T#:382428

Part#: 12621747281

Special Order: No Guaranteed ETA

$ 20.99 USD

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$ 20.99 USD

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