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

Genuine BMW Radiator Hose - E39 525i 528i 530i

For vehicles with production date from 09/1998

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T#:360672

Part#: 11531705223

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$ 66.94 USD

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Genuine BMW Thermostat With Housing - E39 540i, E38 740i

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T#:360668

Part#: 11531436386

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$ 182.87 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.

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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Genuine BMW Transmission Cooling Hose - Water Pump to Radiator - E39 ...

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T#:6944

Part#: 11531711381

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$ 34.99 USD

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This the the transmission cooling hose that goes from the radiator to the water pump. It also connects to the transmission cooling hose from cooler to water pump #11531711384.

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 Coolant Level Sensor

For vehicles with production date up to 09/1998

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T#:360964

Part#: 61318360855

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2% off MSRP $ 92.99

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

$ 90.99 USD

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2% off MSRP

$ 92.99

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$ 90.99 USD

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BMW Coolant / Antifreeze - 1.5L

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T#:16175674

Part#: 82141467704

Ships on Oct 7, 2026

$ 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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Bav Auto Angled Hose Pinch Plier Set - 2pc

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T#:580379

Part#: B8800058

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

$ 24.74 USD

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Angled jaws close, creating a complete seal every time you use them - the jaws are offset, making it possible to use in hard-to-reach locations. Made of glass-filled nylon for extra strength. These are perfect for use with brake lines, etc.

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Uro - Aluminum Coolant Hose Connector for E9x, and Z4

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T#:37757289

Part#: 11537545890PRMK

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$ 24.99 USD

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Aluminum Connector that replaces the OEM brittle Plastic

Genuine BMW Rubber Protection Strip - E39 E38 E52

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T#:45775

Part#: 17111737713

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$ 23.99 USD

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Genuine BMW Rubber Strip - L=621mm
This item fits the following BMW Chassis:
E39 M5,E38,E39

Fits BMW Engines including:
M52,M54,M60,M62,M73,M73N,S62

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Expansion Tank - E39 M5

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T#:3026

Part#: 17112229114

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4% off MSRP $ 329.99

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$ 315.99 USD

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$ 329.99

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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 Water Pump Pulley

For vehicles with production date from 09/1998

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T#:4472

Part#: 11511436590

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Sale - Save 6% $ 73.99

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$ 69.65 USD

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SEE T#337981

Genuine BMW Radiator Hose - Lower - E39 525i 528i 530i

For vehicles with production date from 09/1998

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T#:360673

Part#: 11531705224

Ships on Jul 13, 2026

$ 55.99 USD

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$ 55.99 USD

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Coolant Temperature Sensor

Located on the water pump housing For vehicles with production date from 09/1998

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T#:379617

Part#: 13621703993

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$ 25.99

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05-02-2026

$ 21.99 USD

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$ 25.99

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Coolant Expansion Tank

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T#:591959

Part#: 17111741167

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$ 69.99 USD

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Plastic has a limited lifespan - replace every 80,000 miles

BMW E39 Coolant Expansion Tank

For vehicles with production date from 09/1998

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T#:388645

Part#: 17111436381

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$ 87.99 USD

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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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Genuine BMW Coolant Level Sensor

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T#:360966

Part#: 61318360876

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2% off MSRP $ 92.99

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

$ 90.99 USD

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$ 92.99

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OEM Nissens Radiator - E38 740/750, E34 528i 540i (up to 09/1998) ...

For vehicles with production date up to 09/1998

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T#:362934

Part#: 17111702969

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$ 252.99 USD

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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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Radiator Fan Shroud - E39 525i, 528i, 530i

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T#:7391

Part#: 17101438457

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$ 144.07 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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Febi Radiator Hose - Lower - E39

For vehicles with production date from 09/1998

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T#:4474

Part#: 11531705224

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$ 53.99

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05-02-2026

$ 42.99 USD

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$ 53.99

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This coolant hose goes from the lower radiator to the water pump. This hose has a temperature sensor in it. (sold separately- see below).

This item fits the following BMWs:
1999-2003 E39 BMW 525i 528i 530i

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Water Pump - M50/M52 With Composite Impeller (Original BMW)

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T#:623

Part#: 11517527799

Ships in 4 Business Days

Sale - Save 5% $ 237.99

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$ 225.42 USD

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The early M50/M52 engines had a serious weak point: the water pump. BMW originally used a plastic impeller in the water pump. This would degrade over time and eventually break apart. Your car overheats immediately. This water pump is the latest updated part with a composite impeller. The composite is stronger and lighter than the less-expensive metal impeller version. And it does not suffer from the problems of the early plastic design.

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:
1992-1999 E36 3 series - 323is, 323ic, 325i, 325is, 325ic, 328i, 328ic, M3 3.0 (S50/US), M3 3.2 (S52)
1991-1995 E34 BMW 525i
1997-1998 E39 5 series - 528i
1996-1998 Z3 - Z3 2.8,
1998-2000 Z3 Roadster/Coupe - M Roadster, M Coupe (S52)

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Mishimoto Thermostat W/ Housing & Sensor - BMW M52, M54, M56 Engines ...

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T#:51075086

Part#: MMTS-E46-99E

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$ 91.99 USD

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The Mishimoto Thermostat Assembly focuses on precision fitment and long-term durability.

Genuine BMW - Expansion Tank Replacement Kit - E39 M5

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T#:376939

Part#: 17112229114KT

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$ 353.99 USD

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Transmission Oil Cooler - Priced Each

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T#:568703

Part#: 17217505823

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$ 70.99 USD

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The heat exchanger keeps your engine oil temperature at a safe level. Without it, oil temperatures could sky rocket causing shearing and potentially internal engine component failure.

Universal 12" Electric puller Fan - Black

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T#:598801

Part#: 30100375

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$ 99.99 USD

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861 CFM. High performance puller fan with straight blades. This is a universal fan for applications that require more air flow or for engine compartments that have tight tolerances such as an aftermarket turbo set up that needs more clearance. This fan is universal and you must make it fit your application. It is not a direct bolt on. Made in Italy. Size: 13.25in x 12.5in x 2.2in Airflow (CFM): 861

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URO Radiator Hose - E38, E39

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T#:38094316

Part#: 11531711385

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$ 47.99 USD

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This radiator hose is routed from the lower left of the radiator and goes to the heat exchanger.

Mishimoto Universal Curved Blade Electrical Fan - 14"

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T#:637389

Part#: MMFAN-14C

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$ 104.99 USD

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This curved blade fan can be used as an upgrade to the OEM fan for more efficient cooling or fitment issues with aftermarket products. With its slim design, the fan can easily be installed flush against a radiator. For universal installation, use Mishimoto universal fan mount kit, T#363171. Features: High-flow curved blade fan provides 1300 CFM of airflow Universal fitment Compact design with a diameter of 14" and an overall thickness of only 2.65" provides increased engine bay space 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.

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Febi Coolant Expansion Tank - E36, E39, Z3

For vehicles with production date up to 08/1998

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T#:363759

Part#: 17111723520

Ships on Oct 7, 2026

$ 54.99 USD

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Does not include cap or coolant level sensor

Bracket F On Bord Monitor Radio - E39

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T#:153200

Part#: 65128368216

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8% off MSRP $ 25.99

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$ 23.99 USD

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$ 25.99

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Genuine BMW Bracket F On Bord Monitor Radio
This item fits the following BMW Chassis:
E39 M5,E39

Genuine BMW Thermostat - 92ºC

For vehicles with production date up to 09/1998

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T#:360690

Part#: 11537511083

Ships in 1-2 days

3% off MSRP $ 107.99

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

$ 104.99 USD

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3% off MSRP

$ 107.99

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BMW Mishimoto 12" Universal Curved Blade Electrical Fan

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T#:637388

Part#: MMFAN-12C

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$ 96.99 USD

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$ 96.99 USD

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BMW Mishimoto 12" Universal Curved Blade Electrical Fan

The BMW Mishimoto 12" Universal Curved Blade Electrical Fan is an ideal upgrade for enhancing cooling efficiency or addressing fitment issues with aftermarket components. Turner Motorsport offers this fan with a slim profile that allows for easy installation flush against the radiator, ensuring optimal performance and space utilization.

Benefits:

High-Flow Performance: Delivers 1150 CFM of airflow for superior cooling efficiency.
Universal Fitment: Designed to fit a wide range of vehicles and applications.
Compact Design: With a diameter of 12" and an overall thickness of just 2.5", it increases engine bay space and allows for flexible installation.
Versatile Operation: Easily reversible for use as either a pusher or puller fan.
Mishimoto Lifetime Warranty: Backed by Mishimoto's lifetime warranty for peace of mind.
Prop 65 Warning: Note that Proposition 65 may apply to this product. For more information, visit www.P65Warnings.ca.gov.

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Universal Oil Cooler with Thermostat - 19 Row

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T#:19593926

Part#: MMOCULT

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$ 599.99 USD

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Enhance your BMW's performance and protect its engine with this high-quality oil cooler kit

Even under ideal driving conditions, elevated oil temperatures can lead to decreased lubrication efficiency and pressure. With this oil cooler, you can maintain optimal oil temperatures for peak driving performance.

Kit Includes:

Four feet of stainless braided line for durability
Adapter fittings for easy installation
Oil filter sandwich adapter for seamless integration

Specifications:

Rows: 19
Overall Dimensions: 13" x 5.5" x 2"
Core Dimensions: 11.25" x 5.5" x 2"
Braided Hoses: 4ft .75 inch & 4ft 9 inch
Braided Hose Fittings: -10AN
Sandwich Plate Fittings: -10AN
Includes Thermostat for precise temperature and flow control

*WARNING: This product may be subject to Proposition 65 regulations in California. For more information, visit www.P65Warnings.ca.gov.

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Mishimoto Replacement Universal Oil Cooler - 19 Row

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T#:381042

Part#: MMOC-19

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$ 218.99

This product was last offered at the strikethrough price on
05-06-2026

$ 196.99 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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Universal 14" Electric Fan - Black

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T#:378422

Part#: MMFAN14

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$ 100.99 USD

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$ 100.99 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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Facet Coolant Temperature Sensor - E38, E39

For vehicles with production date up to 09/1998

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T#:2170

Part#: 61318360857

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$ 31.70 USD

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$ 31.70 USD

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Engine radiator double temperature fan switch, 91/104 degree celsius. This switch is designed to activate the auxiliary fan at the specified temperatures.

This item fits the following BMWs:
1997-1998 E39 BMW 528i 540i
1995-1998 E38 BMW 740i 740il

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Universal 12" Electric Fan - Black

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T#:378443

Part#: MMFAN12

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$ 93.99 USD

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$ 93.99 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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Expansion Tank

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T#:373100

Part#: 17111436381

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$ 57.99 USD

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BMW E39 coolant expansion tank without cap.

Thermostat With Housing

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T#:582356

Part#: 11537509227

Ships in 3 Business Days

$ 89.99 USD

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Stop leaks before they start with this new Thermostat With Housing from Rein.

Spal Electric Fan Harness with Relay

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T#:2181323

Part#: FRH

Special Order: No Guaranteed ETA

12% off MSRP $ 112.99

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

$ 99.99 USD

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12% off MSRP

$ 112.99

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

$ 99.99 USD

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SPAL® electric fan relay wiring kits are designed to automatically turn on your SPAL® electric fan when the air conditioning is turned on. They can also be used when dual electric fans are installed using one switching device. Features: Makes installation of your new fan a breeze Designed to safely integrate with OEM wiring Feature a waterproof 10/40 amp relay with printed wires for easy installation Harness is designed for 12V systems only Does not included thermo-switch

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BMW E39 Auxiliary Fan Shroud

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T#:383340

Part#: 17101438457

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$ 79.99 USD

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Surrounds the fan to help draw air into the radiator

Universal 16" High performance Electric puller Fan - Black

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T#:598818

Part#: 30102113

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$ 257.99 USD

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2467 CFM. High performance puller fan with curved blades. This is a universal fan for applications that require more air flow or for engine compartments that have tight tolerances such as an aftermarket turbo set up that needs more clearance. This fan is universal and you must make it fit your application. It is not a direct bolt on. Made in Italy. Size: 16.25in x 15.75in x 3.5in Airflow (CFM): 2467

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Remanufactured Water Pump

For vehicles with production date from 09/1998

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T#:372929

Part#: 11511713266

Ships in 1 Business Day

$ 98.99 USD

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$ 98.99 USD

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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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Febi Radiator Hose - Upper - E39

For vehicles with production date from 09/1998

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T#:363755

Part#: 11531705223

In Stock at Vendor

$ 68.99 USD

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$ 68.99 USD

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Includes retaining clips

419 Pc. Metric Universal O-Ring Assortment

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T#:3657943

Part#: ATD3601

Ships in 1 Business Day

$ 59.99 USD

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$ 59.99 USD

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Always have extra o-rings

Uro - Thermostat Housing with O-ring - 105C

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2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!

T#:3428544

Part#: 11531436386

Back Ordered

$ 57.99 USD

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$ 57.99 USD

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- Guaranteed fitment - High-flow OE-style design for optimal engine cooling performance - Thermostat housing assembly is manufactured to factory housing dimensions for easy bolt-on installation and reliable hose connections - Includes temperature sensor where applicable - High-quality alloy or composite material is temperature-stable to resist warping or cracking that can lead to coolant leakage - 24 Month Unlimited Mileage Warranty

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Genuine BMW Water Pump - E39 M5

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T#:187274

Part#: 11511407113

Ships in 1-2 days

6% off MSRP $ 800.99

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

$ 753.99 USD

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6% off MSRP

$ 800.99

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

$ 753.99 USD

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Genuine BMW Coolant Pump, Mechanical
This item fits the following BMW Chassis:
E39 M5,E39

Fits BMW Engines including:
S62

BMW Radiator Hose Kit - 11537505229

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T#:46719191

Part#: CHK0008P

Ships in 3 Business Days

$ 61.99 USD

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$ 61.99 USD

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Keep your cooling system sealed, strong, and ready for anything with this Rein radiator hose kit—your all-in-one fix for cracked, leaking, or worn factory hoses. Years of heat, pressure, and age can cause rubber to weaken, split, or swell, setting the stage for coolant leaks and potential overheating. Rein hoses are engineered to meet or exceed OEM standards, built from premium, heat-resistant materials that can take on extreme temperatures and system pressures without faltering. Each hose features factory-correct bends, fittings, and diameters for an exact, hassle-free installation—no cutting or forcing required. Whether you’re tackling a full cooling system refresh or chasing down a small coolant leak, this Rein kit provides everything needed to restore confidence and performance under the hood. Why choose this Rein radiator hose kit: Factory-level precision – Direct-fit replacements that deliver OEM-quality reliability. Built to last – Resists cracking, swelling, and chemical damage from daily heat cycling. Confidence restored – Prevents coolant loss, overheating, and on-road breakdowns. All-in-one upgrade – Includes upper and lower hoses for a complete system refresh. If keeping your BMW’s cooling system running tight and trouble-free is the goal, Rein brings the dependable quality and fitment you can count on—engineered to perform just like factory, mile after mile.

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Universal 12" Electric Fan - Blue

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T#:378412

Part#: MMFAN12BL

Ships in 2 Business Days

$ 106.99 USD

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$ 106.99 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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OEM Mahle-Behr Radiator Fan Shroud - E39 540i, E38 740i/il, 750il, E3...

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T#:7392

Part#: 17101440252

Ships in 1 Business Day

$ 122.62 USD

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$ 122.62 USD

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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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Gear Wrench Angled Hose Clip Pliers

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T#:387079

Part#: KDT3977

Ships in 1 Business Day

$ 53.99 USD

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$ 53.99 USD

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This tool is a variation of our popular 3976 Flat Band Hose Clamp Pliers and features 45º jaws with swivel tips to grip at any angle and pliers that latch securely in position.

Genuine BMW Temperature Switch for Control Unit Housing (E-Box) (35 d...

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T#:14858

Part#: 12521741900

Ships in 1-2 days

6% off MSRP $ 82.99

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

$ 77.99 USD

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6% off MSRP

$ 82.99

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

$ 77.99 USD

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Genuine BMW Temperature Switch - 35 Cel
This item fits the following BMW Chassis:
E39 M5,E46 M3,E38,E39,E46,E53 X5 X5,E85 Z4

Fits BMW Engines including:
M52,M54,M56,M60,M62,M73,M73N,S54,S62

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Genuine BMW Coolant Overflow Hose

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T#:360736

Part#: 17111427156

Ships in 1-2 days

3% off MSRP $ 79.99

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

$ 77.99 USD

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Qty

3% off MSRP

$ 79.99

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

$ 77.99 USD

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

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BMW Mishimoto 12" Universal Curved Blade Electrical Fan

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Enhance your BMW's performance and protect its engine with this high-quality oil cooler kit

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