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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Rein Radiator Hose - Upper - E38
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Rein - Corporate Logo
T#:591793
Part#: 11531741408
Ships in 1 Business Day
$ 13.99 USD
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Hose from radiator to water pump
Universal 10" Electric Fan - Black
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Mishimoto - Corporate Logo
T#:378434
Part#: MMFAN10
In Stock at Vendor
$ 88.99 USD
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$ 88.99 USD
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WARNING! Prop 65 may apply to this product. Proposition 65 (Safe Drinking Water and Toxic Enforcement Act of 1968) is a California law that applies to call companies selling products in California. Prop 65 requires any listed chemical present above very low levels that are known to cause cancer, birth defects, or other reproductive harm. For more information about California Prop 65 warning see: www.P65Warnings.ca.gov.
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Vaico Coolant Hose - Radiator Outlet Hose to Trans Cooler - BMW E38 E...
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Vaico - Corporate Logo
T#:595257
Part#: 11531711384
In Stock at Vendor
$ 129.99

This product was last offered at the strikethrough price on
05-08-2026

$ 125.99 USD
$ 125.99 USD
This hose connects the radiator outlet hose to the transmission heat exchanger

16" Fan shroud gasket
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Spal - Corporate Logo
T#:598825
Part#: 30130074
In Stock at Vendor
$ 17.99 USD
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Provides .25" stand off from radiator, does not work with high output fans.

Genuine BMW Thermostat Housing - M60
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Genuine BMW - Corporate Logo
T#:367686
Part#: 11531720173
Ships in 1-2 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 - Level 2 Cooling System Kit - M62TU E39, E38
For vehicles with production date from 09/1998
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Genuine BMW - Corporate Logo
T#:374432
Part#: 17111741167KT1
Ships in 1-2 days
$ 1,097.99 USD
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$ 1,097.99 USD
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Genuine BMW - Level 3 Cooling System Refresh Kit - M62TU E39, E38 ...
For vehicles with production date from 09/1998
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Genuine BMW - Corporate Logo
T#:374834
Part#: 11510393336KT
Ships in 1-2 days
$ 2,227.99 USD
$ 2,227.99 USD
Bracket F Left Radiator Support - E38, E39
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Genuine BMW - Corporate Logo
T#:70041
Part#: 41118125049
Ships in 3 Business Days
6% off MSRP $ 15.99

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

$ 14.99 USD
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6% off MSRP
$ 15.99

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

$ 14.99 USD
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Genuine BMW Bracket F Left Radiator Support
This item fits the following BMW Chassis:
E39 M5,E38,E39


Genuine BMW - Level 1 Thermostat Replacement Kit- M62TU
For vehicles with production date from 09/1998
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Genuine BMW - Corporate Logo
T#:374624
Part#: 11531436386KT
In Stock
$ 235.99 USD
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$ 235.99 USD
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Water Temperature Sensor
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Beru - Corporate Logo
T#:596874
Part#: 12621288158
Ships in 1-2 days
$ 44.99 USD
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$ 44.99 USD
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M14x1.5 Thread. Your vehicle is equipped with numerous gauges to allow you to have a better idea of what is going on under the hood. By monitoring these gauges, you can prevent premature engine damage due to low oil pressure or high coolant temperatures. If one isn't functional though, you are in the dark as far as that system goes. One of the most vital is coolant temperature. Replace the sensor to get your gauge working properly again.
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Adjust-Lever - E31, E38, E39, E53
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Genuine BMW - Corporate Logo
T#:33632
Part#: 11281745904
Ships in 1-2 days
4% off MSRP $ 56.99

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

$ 54.99 USD
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4% off MSRP
$ 56.99

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

$ 54.99 USD
Free Shipping on orders $49 and up


Genuine BMW Adjust-Lever -
This item fits the following BMW Chassis:
E38,E39,E53 X5

Fits BMW Engines including:
M62

Genuine BMW- Level 2 Cooling System Refresh Kit - M62 E39, E38 ...
For vehicles with production date up to 09/1998
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Genuine BMW - Corporate Logo
T#:374431
Part#: 17111741167KT
Ships in 3 Business Days
$ 1,059.99 USD
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$ 1,059.99 USD
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Hose Clamp 2 5/16" - 3 1/4" - priced each
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ECS - Corporate Logo
T#:376806
Part#: 54155K23
Ships in 1-2 days
$ 4.99 USD
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Hose Clamp 2 5/16" - 3 1/4"

Ensure secure hose connections with the Hose Clamp 2 5/16" - 3 1/4", a versatile and reliable solution for various applications. Crafted from durable materials, this clamp offers superior strength and corrosion resistance. Its adjustable design allows for a snug fit, reducing the risk of leaks and ensuring optimal performance. Upgrade your hose connections with the precision and reliability of the Hose Clamp 2 5/16" - 3 1/4".

  • Versatile and reliable solution for various applications
  • Superior strength and corrosion resistance
  • Adjustable design for a snug fit
  • Reduces risk of leaks for optimal performance
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Cooling & Drive Belt Service Kit
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Genuine BMW - Corporate Logo
T#:55317703
Part#: 112814CRKT
Ships in 3 Business Days
New Item
$ 79.26 USD
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Swap out your aged factory components before they fail, and maintain total confidence in your charging, cooling, and air conditioning systems.
Radiator Mounting Kit
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Genuine BMW - Corporate Logo
T#:55317656
Part#: 1711173RMKT
Ships in 3 Business Days
New Item
$ 59.02 USD
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This Genuine BMW Radiator Mounting Kit provides the absolute best option for restoring the factory anchoring system on your chassis.

Hella Coolant Temperature Sender - E31, E32, E34, E36, E38
Located in the water accumulator Located in the cylinder head
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Hella - Corporate Logo
T#:580139
Part#: 9107471
Ships in 4 Business Days
$ 15.99 USD
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$ 15.99 USD
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2 pin

O-RING
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Victor Reinz - Corporate Logo
T#:580584
Part#: C32348
In Stock
$ 3.99

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

$ 2.99 USD
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$ 2.99 USD
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Bracket F Right Radiator Support - E38, E39
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Genuine BMW - Corporate Logo
T#:70042
Part#: 41118125050
Ships in 9 Business Days
6% off MSRP $ 15.99

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

$ 14.99 USD
Free Shipping on orders $49 and up
6% off MSRP
$ 15.99

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

$ 14.99 USD
Free Shipping on orders $49 and up


Genuine BMW Bracket F Right Radiator Support
This item fits the following BMW Chassis:
E39 M5,E38,E39


Victor Reinz Water Pump Gasket - E31, E32, E34, E38, E39, E53 ...
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Victor Reinz - Corporate Logo
T#:376106
Part#: 11511731372
Ships in 6 Business Days
$ 7.99

This product was last offered at the strikethrough price on
07-06-2026

$ 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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Bremmen Parts - Corporate Logo
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
Free Shipping on orders $49 and up
Sale - Save 4%
$ 30.99

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

$ 29.67 USD
Free Shipping on orders $49 and up
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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Rein Coolant Overflow Hose
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Rein - Corporate Logo
T#:19458
Part#: 17111427156
Ships on Jul 24, 2026
$ 5.99 USD
Free Shipping on orders $49 and up

Rein Coolant Overflow Hose is designed to meet the highest standards of performance and durability for your vehicle's cooling system. This high-quality hose ensures the proper transfer of excess coolant from the engine to the overflow reservoir, preventing overheating and ensuring optimal engine performance. Manufactured from reinforced rubber materials, the Rein Coolant Overflow Hose guarantees long-lasting reliability and precise fitment for various vehicle makes and models. It’s the perfect upgrade or replacement for worn-out hoses in any cooling system.

Available through Turner Motorsport, this coolant overflow hose is rigorously tested to withstand extreme temperatures, pressures, and daily use. If you’re looking to maintain or improve your car's cooling efficiency, the Rein Coolant Overflow Hose is an essential component.

  • Precision engineered for a perfect fit
  • Manufactured from durable, reinforced rubber
  • Designed to withstand high temperatures and pressures
  • Improves cooling system efficiency and prevents overheating
  • Easy installation with OE-spec dimensions
  • Available at Turner Motorsport, trusted for automotive parts

Enhance your vehicle's performance and reliability by replacing your old coolant hose with the Rein Coolant Overflow Hose today.

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Anti-Freeze Tester
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CTA Tools - Corporate Logo
T#:641679
Part#: CTAA195
Ships on Jul 27, 2026
$ 9.98 USD
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Tests all ethylene glycol solutions with radiator hot or cold
FAE Water Temperature Sensor - E31, E32, E34, E38
Located in the water accumilator
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FAE - Corporate Logo
T#:7171
Part#: 12621288158
Ships on Jul 31, 2026
$ 16.99 USD
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$ 16.99 USD
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ENGINE ELECTRICAL TEMPERATURE SENSOR, WATER 12621288158
BMW Radiator Expansion Tank Pressure Fitting
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Requires the use of a Motive Power Bleeder, sold separately
Motive - Corporate Logo
T#:380462
Part#: 1175
Ships on Jul 31, 2026
$ 24.99 USD
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Allows you to check for leaks in the coolant system


Rubber Mount
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URO - Corporate Logo
T#:362393
Part#: 17111737704
Ships on Jul 31, 2026
$ 7.99 USD
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Rubber lower mount for your radiator
Electric Auxiliary Fan - E38 1999-2001, Z8
For vehicles with production date from 09/1998
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VDO - Corporate Logo
T#:3121420
Part#: 64546921383
Special Order: No Guaranteed ETA
$ 563.99 USD
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$ 563.99 USD
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This electric auxiliary fan for BMW E38 7 series 1999-2001 and BMW Z8, mounts in front of the radiator and is designed to push air through the A/C Condenser and main radiator. It provides additional cooling for when the car is in traffic. It is a common failure item. If your engine temps are creeping up or if your A/C isn't blowing cold this could be the cause.

This item fits the following BMWs:
1999-2001 E38 BMW 740i 740il 750il
2000-2003 E52 BMW Z8 Roadster
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Air Conditioning Fan Assembly - E38 1995-1998
For vehicles with production date from 09/1995 to 09/1998
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VDO - Corporate Logo
T#:3077090
Part#: 64548380774
Special Order: No Guaranteed ETA
$ 348.99 USD
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$ 348.99 USD
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This electric auxiliary fan for BMW E38 7 series 1995-1998, mounts in front of the radiator and is designed to push air through the A/C Condenser and main radiator. It provides additional cooling for when the car is in traffic. It is a common failure item. If your engine temps are creeping up or if your A/C isn't blowing cold this could be the cause. 

 

This item fits the following BMWs: 
1995-1998 E38 BMW 740i 740il 750il 

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Elring Thermostat Gasket - BMW M60 M62 M70 S70
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Elring - Corporate Logo
T#:45005599
Part#: 818.437
Special Order: No Guaranteed ETA
$ 2.99 USD
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This rubber gasket seals the junction between the thermostat and water pump Measurements: 4.0x76.5mm

2 Pin Connector
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ECS - Corporate Logo
T#:33412932
Part#: 61132359999
Ships on Jul 28, 2026
Sale - Save 25% $ 10.99

This product was last offered at the strikethrough price on
06-14-2026

$ 8.24 USD
Free Shipping on orders $49 and up
Sale - Save 25%
$ 10.99

This product was last offered at the strikethrough price on
06-14-2026

$ 8.24 USD
Free Shipping on orders $49 and up

Includes connector housing with terminals and seals. Commonly used for the coolant level sensor.

ECS Tuning replacement harness connectors include all necessary pins and wire seals for a complete harness repair. Whether you have a broken harness connector or need a complete wiring repair, we have the components you need.

Each connector includes an additional terminal in case one becomes lost or damaged during installation.

*OEM cross reference PN# 61132359999 - Commonly used for the coolant level sensor.

Please reference the original part number from the existing connector to confirm fitment, before ordering.

Suggested tools:

Suggested crimping pliers: T#387193
Wire De-pin tools:
12pc De-Pin Tool Set - T#386379
23pc De-Pin Tool Set - T#641943

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Febi Radiator Fan Clutch - E31, E32, E34, E38, E39
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Febi - Corporate Logo
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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Febi - Corporate Logo
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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Febi - Corporate Logo
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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Febi - Corporate Logo
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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Febi - Corporate Logo
T#:6969
Part#: 11531741404
Special Order: No Guaranteed ETA
$ 22.99 USD
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ENGINE WATER HOSE 11531741404
Coolant Temperature Sensor
Located on water pump housing
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Meyle - Corporate Logo
T#:594615
Part#: 13621703993
Special Order: No Guaranteed ETA
$ 18.99 USD
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$ 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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Auxillary Fan Switch
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Meyle - Corporate Logo
T#:4934936
Part#: 3148210000
Special Order: No Guaranteed ETA
$ 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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Coolant Level Sensor
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Meyle - Corporate Logo
T#:594511
Part#: 61318360876
Special Order: No Guaranteed ETA
$ 27.99 USD
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Monitors the coolant level in the expansion tank. This sensor is critical in keeping tabs of your cooling systems health.
Expansion Tank Hose
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Rein - Corporate Logo
T#:379785
Part#: 17111737819
Back Ordered
$ 26.99 USD
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Connects the expansion tank to the radiator
Febi Coolant Temperature Sender - E31, E32, E34, E36, E38
Located in the water accumulator Located in the cylinder head
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Febi - Corporate Logo
T#:382428
Part#: 12621747281
Special Order: No Guaranteed ETA
$ 20.99 USD
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$ 20.99 USD
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2 pin

OEM Radiator Water Valve Hose - Left - E38 740
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Rein - Corporate Logo
T#:11094
Part#: 64218391122
Back Ordered
$ 6.54 USD
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This is the hose that runs from the left radiator to the water valve. Over time, coolant hoses begin to get brittle and are susceptible to cracking and splitting. Replace your cracked or leaking coolant hose to prevent further leaks and potentially catastrophic failure.

 

This item fits the following BMWs: 
1999-2001 E38 BMW 740i 740il

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BMW Coolant Expansion Tank With Cap
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Rein - Corporate Logo
T#:46616009
Part#: EPK0013
Ships in 3 Business Days
$ 64.99 USD
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The coolant expansion tank in your vehicle gives additional fluid a place to go after expansion and contraction from temperature change. Because it is subjected to such drastic changes on a regular basis, it can often crack or break. You want to keep all the coolant in your vehicle in the cooling system. If your tank has experienced damage such as cracking, nipples breaking off, or mounting point damage, you will need to replace it. This replacement will fit perfectly and provide the same heating and cooling characteristics as an original unit. When replacing, be sure to have some extra coolant. Check ECS Tuning's website for a wide variety of coolants specifically designed for your car. Most German vehicles require specialized coolant. Be sure to pick up the proper coolant when refilling to avoid damage or premature corrosion.
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Auxiliary Fan Switch
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URO - Corporate Logo
T#:376847
Part#: 13621433077
Back Ordered
$ 10.99 USD
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$ 10.99 USD
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Comes with related o-ring

1999-2001 BMW 740i/750i Radiator Replacement
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Mishimoto - Corporate Logo
T#:597379
Part#: R2285-MT
Back Ordered
$ 256.99 USD
$ 256.99 USD
This 1999-2001 BMW 740i/iL 4.4L V8 radiator is a direct OEM replacement for your old stock unit. There is no need to bend, cut, or modify anything to ensure a proper fitment in your vehicle. This radiator features OEM spec plastic end tanks attached to an aluminum core for stock cooling efficiency. At some point the inevitable happens to original stock radiators. They either spring a leak, get clogged up, or a plastic inlet or outlet cracks due to years of constant clamp pressure. This BMW 740i/iL radiator is a perfect replacement to keep your cooling system in top-notch shape, and just like all Mishimoto parts, it comes with the Mishimoto Lifetime Warranty. WARNING! Prop 65 may apply to this product. Proposition 65 (Safe Drinking Water and Toxic Enforcement Act of 1968) is a California law that applies to call companies selling products in California. Prop 65 requires any listed chemical present above very low levels that are known to cause cancer, birth defects, or other reproductive harm. For more information about California Prop 65 warning see: www.P65Warnings.ca.gov. WARNING! Prop 65 may apply to this product. Proposition 65 (Safe Drinking Water and Toxic Enforcement Act of 1968) is a California law that applies to call companies selling products in California. Prop 65 requires any listed chemical present above very low levels that are known to cause cancer, birth defects, or other reproductive harm. For more information about California Prop 65 warning see: www.P65Warnings.ca.gov.
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Bremmen Parts Thermostat Assembly - E38, E39
For vehicles with production date up to 09/1998
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Bremmen Parts - Corporate Logo
T#:388457
Part#: 11531437526
Back Ordered
Sale - Save 15% $ 56.99

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

$ 48.44 USD
Free Shipping on orders $49 and up
Sale - Save 15%
$ 56.99

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

$ 48.44 USD
Free Shipping on orders $49 and up
Comes with aluminum housing, o-ring & sensor