BMW Cooling System Parts & Accessories for BMW 5 Series E39 (1996-2003)

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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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Genuine BMW - Corporate Logo
T#:360689
Part#: 11537509227
Ships in 1-2 days
3% off MSRP $ 174.45

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

$ 169.69 USD
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3% off MSRP
$ 174.45

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

$ 169.69 USD
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Thermostat With Housing
10X Entries Into Our F80 M3 Sweepstakes
Bremmen Parts - Corporate Logo
T#:26494584
Part#: 11537509227
In Stock
Sale - Save 25% $ 60.99

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

$ 45.99 USD
Free Shipping on orders $49 and up
Sale - Save 25%
$ 60.99

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

$ 45.99 USD
Free Shipping on orders $49 and up
Coolant Expansion Tank
10X Entries Into Our F80 M3 Sweepstakes
Bremmen Parts - Corporate Logo
T#:36032353
Part#: 17111741167
In Stock
Sale - Save 15% $ 60.99

This product was last offered at the strikethrough price on
09-16-2026

$ 51.84 USD
Free Shipping on orders $49 and up
Sale - Save 15%
$ 60.99

This product was last offered at the strikethrough price on
09-16-2026

$ 51.84 USD
Free Shipping on orders $49 and up

Coolant Expansion Tank
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:373102
Part#: 17111723520
In Stock
$ 30.99 USD
Free Shipping on orders $49 and up
Does not include cap or coolant level sensor

Genuine BMW - Corporate Logo
T#:1030
Part#: 11517509985
In Stock
11% off MSRP $ 192.54

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

$ 172.26 USD
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11% off MSRP
$ 192.54

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

$ 172.26 USD
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This Original BMW water pump is the latest updated design with a composite impeller. The composite material (similar to Kevlar) is much stronger than the problematic plastic impeller from past water pumps. And it's lighter than the aftermarket metal impellers so that means less strain on the bearing. For an OE/OEM replacement, we have found that this is the highest quality and longest lasting waterpump available.

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 waterpump fits the following BMWs:
1999-2006 E46 3 series - 323i, 323Ci, 328i, 328Ci, 325i, 325Ci, 330i, 330Ci
1999-2003 E39 5 series - 528i, 525i, 530i
1999-2002 Z3 Roadster/Coupe - Z3 2.8, Z3 2.5, Z3 3.0
2004-2006+ X3 SAV - X3 2.5 & 3.0
2000-2006 X5 SAV - X5 3.0
2003-2005 Z4 Roadster/Coupe - Z4 2.5 & Z4 3.0
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Mahle-Behr - Corporate Logo
T#:341098
Part#: 11537509227
Ships in 2 Business Days
$ 104.39

This product was last offered at the strikethrough price on
08-14-2026

$ 104.28 USD
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$ 104.28 USD
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Replacement stock MAP thermostat with plastic housing and gasket for E46, E39, E60, X5, Z4 - M54 engine, M52TU engine. Your car may still operate fine according the instrument display but the electrically-operated thermostat may be going bad. This new thermostat includes the thermostat gasket, ready to install in your BMW.

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.

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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Genuine BMW - Corporate Logo
T#:16593
Part#: 11537505229
In Stock
2% off MSRP $ 45.99

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

$ 44.99 USD
Free Shipping on orders $49 and up
2% off MSRP
$ 45.99

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

$ 44.99 USD
Free Shipping on orders $49 and up
Replacement lower radiator hose - to thermostat. This is an OE BMW replacement hose, with the plastic fittings and clamps installed.

This item fits the following BMWs:
1999-2003 E39 BMW 540i
1999-2001 E38 BMW 740i 740il
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Genuine BMW - Corporate Logo
T#:6983
Part#: 11537505228
In Stock
2% off MSRP $ 45.99

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

$ 44.99 USD
Free Shipping on orders $49 and up
2% off MSRP
$ 45.99

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

$ 44.99 USD
Free Shipping on orders $49 and up
Replacement upper radiator hose - to water pump and alternator. This is an OE BMW replacement hose, with the plastic fittings and clamps installed.

This item fits the following BMWs:
1999-2003 E39 BMW 540i
1999-2001 E38 BMW 740i 740il
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Genuine BMW - Corporate Logo
T#:6946
Part#: 11531711385
Ships in 1-2 days
$ 31.99 USD
Free Shipping on orders $49 and up
This the the transmission cooling hose that goes from the radiator to the transmission oil regulator (# 17211437772 ) /oil cooler (# 17217505823 )/.

We offer all these hoses in our Transmission Cooling Hose Kit

This hose set fits the following BMWs:
1999-2003 E39 BMW 540i
1999-2001 E38 BMW 740i 740il
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Genuine BMW - Corporate Logo
T#:7391
Part#: 17101438457
Ships in 1 day
3% off MSRP $ 156.99

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

$ 152.99 USD
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3% off MSRP
$ 156.99

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

$ 152.99 USD
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This Genuine BMW radiator fan shroud channels air through the radiator to provide maximum cooling. A cracked or damaged fan shroud will reduce the cooling efficiency.

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 525i 528i 530i
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Genuine BMW Coolant Hose
For vehicles with production date up to 09/1998
Genuine BMW - Corporate Logo
T#:367831
Part#: 13541703945
Ships in 1-2 days
3% off MSRP $ 34.99

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

$ 33.99 USD
Free Shipping on orders $49 and up
3% off MSRP
$ 34.99

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

$ 33.99 USD
Free Shipping on orders $49 and up
OEM Nissens Radiator - E39 525/528/530/540i (09/1998+)
For vehicles with manual transmission and production date from 09/1998 For vehicles with manual or automatic transmission and production date from 09/1998
Nissens - Corporate Logo
T#:362908
Part#: 17111436060
In Stock
$ 229.99 USD
$ 229.99 USD
This radiator is made by Nissens, an original equipment supplier to BMW. The cooling system is a weak point on most BMWs, causing many BMWs to develop issues in as few as 50,000 miles. Overheating your engine can and usually will result in large repair bills and sometimes a warps the cylinder head(s), requiring intensive repair or full replacement. Prevent potential failure by replacing your radiator early, keeping your BMW happy and cool. This is the brand we use exclusively on our own BMWs, and think you should as well! 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!
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Genuine BMW - Corporate Logo
T#:360663
Part#: 11521712110
In Stock
3% off MSRP $ 104.99

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

$ 101.99 USD
Free Shipping
3% off MSRP
$ 104.99

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

$ 101.99 USD
Free Shipping
BMW Water Pump - Remanufactured - 11517527799
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:372932
Part#: 11517527799
In Stock
$ 42.99 USD
Free Shipping on orders $49 and up
Features a metal impeller for reliability
Hudson - Corporate Logo
T#:46203522
Part#: 11531741202
Ships in 1-2 days
$ 31.99 USD
Free Shipping on orders $49 and up

Genuine BMW Coolant Hose - E52 Z8 E39 540i
For vehicles with manual transmission and production date from 09/1998
Genuine BMW - Corporate Logo
T#:367677
Part#: 11531711377
In Stock
$ 43.99 USD
Free Shipping on orders $49 and up
$ 43.99 USD
Free Shipping on orders $49 and up

OEM Nissens Radiator - E39 540i M5 E38 740/750 (09/1998+), E52 Z8 & Z...
For vehicles with automatic transmission and production date from 09/1998
Nissens - Corporate Logo
T#:380578
Part#: 17111436063
In Stock
$ 188.99 USD
$ 188.99 USD
This radiator is made by Nissens, an original equipment supplier to BMW. The cooling system is a weak point on most BMWs, causing many BMWs to develop issues in as few as 50,000 miles. Overheating your engine can and usually will result in large repair bills and sometimes a warps the cylinder head(s), requiring intensive repair or full replacement. Prevent potential failure by replacing your radiator early, keeping your BMW happy and cool. This is the brand we use exclusively on our own BMWs, and think you should as well! 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!
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Saleri - Corporate Logo
T#:581204
Part#: PA659
Ships in 2 Business Days
$ 60.99 USD
Free Shipping on orders $49 and up

OEM Hella/Behr Radiator -- E39 525i/528i/530i (Manual, Automatic), E3...
For vehicles with manual transmission and production date from 09/1998 For vehicles with manual or automatic transmission and production date from 09/1998
Mahle-Behr - Corporate Logo
T#:2033
Part#: 17111436060
Ships in 2 Business Days
$ 302.79

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

$ 280.52 USD
$ 280.52 USD

OEM Hella/Behr brand replacement radiator for all 1999-2000 E39 528i (all), 2001-2003 525i & 530i (all), and 540i Sport with 6 Speed Manual Transmission. This radiator is made by Hella/Behr, an original equipment (OE) supplier to BMW. This is the brand we use exclusively on our own 5 series BMWs, and think you should as well. A common failure item is the radiator. It is such a common failure item we recommend replacing this item preventatively every 80,000 miles. This Radiator is made by Hella/Behr, a high quality OE manufacturer. Replaces part number # 17111436060

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 BEHR Radiator fits the following BMWs:
1999-2000 E39 528i (manual & automatic)
2001-2003 E39 525i & 530i (manual & automatic)
1999-2003 E39 540i Sport 6 Speed (manual transmission)

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Mahle-Behr - Corporate Logo
T#:1341
Part#: 17111436062
Ships in 2 Business Days
$ 327.54

This product was last offered at the strikethrough price on
08-14-2026

$ 277.71 USD
Free Shipping
$ 277.71 USD
Free Shipping
OEM BEHR brand replacement radiator for all E39 M5, as produced in 2000, 2001, 2002 and 2003. This radiator is made by BEHR, an original equipment supplier to BMW. BEHR radiators are what we use our own BMWs and customer installs. We've found the BEHR radiator has the highest lifespan, least amount of manufacturing defects, and best continued cooling performance on the E39 M5. Simply put, you do not want anything else in your M5 but a BEHR brand radiator.

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:
2000-2003 E39 M5 sedan
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URO Fan Blade - BMW E3X
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:373133
Part#: 11521712110
Ships in 2 Business Days
$ 33.99 USD
Free Shipping on orders $49 and up
Replace your fragile fan blades before they break and damage your radiator.

Mahle-Behr - Corporate Logo
T#:341080
Part#: 11531436386
In Stock
$ 173.99 USD
Free Shipping
$ 173.99 USD
Free Shipping
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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OEM Mahle-Behr Thermostat M62 - E39 540i E38 740i 1996-1998
For vehicles with production date up to 09/1998
Mahle-Behr - Corporate Logo
T#:361004
Part#: 11531437526
Ships in 2 Business Days
$ 166.47 USD
Free Shipping on orders $49 and up
$ 166.47 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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Genuine BMW - Corporate Logo
T#:6986
Part#: 11537511207
Ships in 1-2 days
$ 28.99 USD
Free Shipping on orders $49 and up
This the the transmission cooling hose that goes from the transmission oil regulator (# 17211437772 ) /oil cooler (# 17217505823 ) to the metal line mounted to the chassis.

We offer all these hoses in our Transmission Cooling Hose Kit

This hose set fits the following BMWs:
1999-2003 E39 BMW 540i
1999-2001 E38 BMW 740i 740il
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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
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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URO Premium Aluminum Water Pipe - BMW M52TU M54
2X Entries Into Our F80 M3 Sweepstakes
URO Premium - Corporate Logo
T#:587659
Part#: 11537502525PRM
Ships in 2 Business Days
$ 71.99 USD
Free Shipping
$ 71.99 USD
Free Shipping
This plastic coolant water pipe connects the expansion tank return hose with the engine block
Upper Radiator Hose - E38 E39 M62
For vehicles with production date from 09/1998
10X Entries Into Our F80 M3 Sweepstakes
Bremmen Parts - Corporate Logo
T#:36100134
Part#: 11537505228
In Stock
$ 52.99

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

$ 38.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
$ 52.99

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

$ 38.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up

This OEM-style upper radiator hose connects the upper radiator outlet to the thermostat housing.

If you're experiencing a leak or wear in your radiator hose, replace it with this high-quality, cost-effective replacement from Bremmen Parts to restore optimal cooling system performance.

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Coolant Expansion Tank - 17111436381
For vehicles with production date from 09/1998
10X Entries Into Our F80 M3 Sweepstakes
Bremmen Parts - Corporate Logo
T#:36303285
Part#: 17111436381
In Stock
Sale - Save 39% $ 65.99

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

$ 40.00 USD
Free Shipping on orders $49 and up
Sale - Save 39%
$ 65.99

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

$ 40.00 USD
Free Shipping on orders $49 and up

BMW E39 Coolant Expansion Tank is an essential component designed to maintain the proper coolant level in your vehicle's cooling system. Manufactured with high-quality materials, this expansion tank ensures reliable performance and durability, preventing engine overheating by accommodating the expansion of coolant as it heats up. The kit includes a level sensor and cap, providing everything needed for a seamless installation. This expansion tank is specifically engineered to meet the exact specifications of your BMW E39, offering a perfect fit and optimal functionality.

Complete Kit: Includes level sensor and cap for easy installation. High-Quality Construction: Built with durable materials for long-lasting performance. Prevents Overheating: Helps manage coolant expansion, ensuring engine protection. Exact Fit: Designed to meet the precise specifications of your BMW E39. Enhanced Reliability: Ensures proper coolant level maintenance for optimal cooling system function.

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Coolant Expansion Tank
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:362009
Part#: 17111741167
In Stock
$ 49.99 USD
Free Shipping on orders $49 and up
Does not include level sensor and cap
Expansion Tank Hose
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:375747
Part#: 11531438632
Ships in 2 Business Days
$ 24.99 USD
Free Shipping on orders $49 and up

Mahle-Behr - Corporate Logo
T#:361568
Part#: 17111741167
Ships in 2 Business Days
$ 100.99

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

$ 88.99 USD
Free Shipping
$ 88.99 USD
Free Shipping

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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Genuine BMW - Corporate Logo
T#:360668
Part#: 11531436386
In Stock
3% off MSRP $ 200.99

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

$ 193.99 USD
Free Shipping
3% off MSRP
$ 200.99

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

$ 193.99 USD
Free Shipping

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. 

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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E39 Upper Radiator Hose - E39 525i 528i 530i
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:4473
Part#: 11531705223
Ships in 4 Business Days
$ 47.99 USD
Free Shipping on orders $49 and up
This cooling hose goes from the upper radiator port to the water pump. It includes a new bleed screw.

This item fits the following BMWs:
1999-2003 E39 BMW 525i 528i 530i
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Genuine BMW - Corporate Logo
T#:360697
Part#: 11537835558
In Stock
3% off MSRP $ 147.99

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

$ 142.99 USD
Free Shipping
3% off MSRP
$ 147.99

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

$ 142.99 USD
Free Shipping
Genuine BMW - Corporate Logo
T#:15154
Part#: 17217505823
Ships in 8 Business Days
3% off MSRP $ 381.99

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

$ 371.99 USD
Free Shipping
3% off MSRP
$ 381.99

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

$ 371.99 USD
Free Shipping
Part of any cooling system overhaul on the 540i or 740i/iL should include a service for the automatic transmission heat exchanger (cooler). This block takes coolant from the radiator and uses it to cool the oil for the transmission. A blocked or faulty transmission cooler can lead to major transmission faults, harder or hesitating shifts, or even complete transmission failure. We recommend getting 2 new o-rings while replacing the the heat exchanger. il As part of every cooling system service we recommend cleaning or replacing the heat exchanger itself and the replacement of the hoses leading to it (see separate product).

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:
1999-2003 E39 BMW 540i
1999-2001 E38 BMW 740i 740il
Show More Show Less
Hepu Water Pump - E38, E39, E52, E53
For vehicles with production date from 09/1998
Hepu - Corporate Logo
T#:393249
Part#: 11510393336
Ships in 1-2 days
$ 140.18

This product was last offered at the strikethrough price on
09-08-2026

$ 125.26 USD
Free Shipping
$ 125.26 USD
Free Shipping
Prevent cooling system failure. New - not remanufactured!


Genuine BMW - Corporate Logo
T#:45574
Part#: 17102693701
In Stock
8% off MSRP $ 77.99

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

$ 71.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
8% off MSRP
$ 77.99

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

$ 71.99 USD
Limited Qty Sale
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Genuine BMW Vent Pipe
This item fits the following BMW Chassis:
E39 M5,E39

Fits BMW Engines including:
S62

OEM Febi Auxiliary Fan Switch
For vehicles with production date from 09/1998
We Price Match - Give Us A Call or Chat!
Febi - Corporate Logo
T#:340712
Part#: 13621433077
Ships on Dec 24, 2026
$ 29.99 USD
Free Shipping on orders $49 and up
$ 29.99 USD
Free Shipping on orders $49 and up
The auxiliary fan switch activates the auxiliary cooling fan to provide additional cooling under high heat loads, and when the car is stationary.
Genuine BMW - Corporate Logo
T#:3026
Part#: 17112229114
In Stock
4% off MSRP $ 329.99

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

$ 315.99 USD
Free Shipping
4% off MSRP
$ 329.99

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

$ 315.99 USD
Free Shipping
This radiator expansion tank (coolant reservoir) is used on E39 M5 from 1999-2003. It is a common failure item. If you are overhauling your coolant system, now is the time to consider preventative replacing this expansion tank.

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:
1999-2003 E39 BMW M5
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Genuine BMW Radiator Hose - Lower - E39 525i 528i 530i
For vehicles with production date from 09/1998
Genuine BMW - Corporate Logo
T#:360673
Part#: 11531705224
Ships in 3 Business Days
$ 55.99 USD
Free Shipping
$ 55.99 USD
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URO - Heater Inlet Pipe - E46, Z3, E39
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:34080697
Part#: 11531705210
Ships in 2 Business Days
$ 34.49 USD
Free Shipping on orders $49 and up
This runs from the front left side of the cylinder head under the intake manifold toward the firewall.
Febi Coolant Expansion Tank - E36, E39, Z3
For vehicles with production date up to 08/1998
We Price Match - Give Us A Call or Chat!
Febi - Corporate Logo
T#:363759
Part#: 17111723520
Ships on Dec 24, 2026
$ 54.99 USD
Free Shipping on orders $49 and up
$ 54.99 USD
Free Shipping on orders $49 and up
Does not include cap or coolant level sensor

Radiator Fan Clutch
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:373087
Part#: 11527502804
In Stock
$ 91.99 USD
Free Shipping
$ 91.99 USD
Free Shipping
Keep your engine cool
Geba Water Pump - M62
For vehicles with production date from 09/1998
Geba - Corporate Logo
T#:341091
Part#: 11510393336
Ships in 7 Business Days
$ 99.99 USD
Free Shipping
$ 99.99 USD
Free Shipping
Prevent cooling system failure today and replace your water pump!

Rein - Corporate Logo
T#:6945
Part#: 11531711384
In Stock at Vendor
$ 68.99 USD
Free Shipping
$ 68.99 USD
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This is the cooling system return hose that goes from the automatic transmission cooling thermostat to the hose that comes off the lower water pump outlet.1999-2003 E39 BMW 540i
1999-2001 E38 BMW 740i 740il
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Mahle-Behr - Corporate Logo
T#:374303
Part#: 11527502804
Ships in 2 Business Days
$ 367.99

This product was last offered at the strikethrough price on
08-26-2026

$ 338.99 USD
Free Shipping
$ 338.99 USD
Free Shipping
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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Remanufactured Water Pump
For vehicles with production date from 09/1998
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:372929
Part#: 11511713266
Ships in 2 Business Days
$ 98.99 USD
Free Shipping
$ 98.99 USD
Free Shipping
Equipped with metal impeller for efficient flow and greater durability (OE plastic impellers can shatter and clog cooling system passages with broken pieces) Guaranteed fitment Manufactured to OE dimensions for easy installation and proper pulley alignment Constructed of high-strength alloy and composite materials (where applicable) Quality bearings and seals for long-term reliability Function-tested for performance
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Engine Fan - E31 E32 E34 E38 E39 with V8
We Price Match - Give Us A Call or Chat!
Febi - Corporate Logo
T#:4528
Part#: 11521712110
Ships in 2 Business Days
$ 83.64

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

$ 74.27 USD
Free Shipping on orders $49 and up
$ 74.27 USD
Free Shipping on orders $49 and up
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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Rein Radiator Hose - Lower - E39
For vehicles with production date from 09/1998
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:341242
Part#: 11531705224
Ships in 2 Business Days
$ 37.99 USD
Free Shipping on orders $49 and up
$ 37.99 USD
Free Shipping on orders $49 and up
Includes retaining clips
Electric Auxiliary Fan - E39 1999-2003
For vehicles with production date from 09/1998
Mahle-Behr - Corporate Logo
T#:377040
Part#: 64546921395
Ships in 2 Business Days
$ 393.29

This product was last offered at the strikethrough price on
08-17-2026

$ 333.47 USD
Free Shipping
$ 333.47 USD
Free Shipping
This electric auxiliary fan for BMW E39 525i 528i 530i 540i M5 1999-2003 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:
1999-2003  E39 BMW  525i 528i 530i 540i M5
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