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URO BMW Cooling System Parts & Accessories

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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Rubber Lower Radiator Mount Insert - Priced Each

2X Entries Into Our F80 M3 Sweepstakes

T#:593045

Part#: 17117805310

Ships in 1 Business Day

$ 18.99 USD

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$ 18.99 USD

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Found at the bottom of the radiator

URO Expansion Tank Mounting Plate - BMW E83 X3

2X Entries Into Our F80 M3 Sweepstakes

T#:639534

Part#: 17113400018

Ships in 1 Business Day

$ 90.99 USD

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$ 90.99 USD

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Secures the expansion tank to the radiator

URO Engine Block Coolant Flange - BMW E90 E70 M57

2X Entries Into Our F80 M3 Sweepstakes

T#:637727

Part#: 11127806196

Ships in 1 Business Day

$ 11.99 USD

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$ 11.99 USD

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Replace your broken, cracked, or leaking coolant flange with this URO coolant flange to restore proper engine cooling

Coolant Level Sensor - 109mm Long

2X Entries Into Our F80 M3 Sweepstakes

T#:380458

Part#: 61311375715

Ships in 1 Business Day

$ 15.99 USD

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$ 15.99 USD

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Replace your coolant level sensor and ensure that your levels are accurately monitored

BMW Auxiliary Water Pump

2X Entries Into Our F80 M3 Sweepstakes

T#:46753502

Part#: 11518635089

Back Ordered

$ 377.99 USD

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$ 377.99 USD

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If your water pump is on its way out, you might spot coolant leaks or hear a faint whining sound from under the hood. Don’t wait—if you suspect it’s failing, replace it before it leaves you stranded. The tricky part with electric water pumps is that they can fail silently—no noise, no leaks—just sudden overheating. Stay alert for early warning signs that it’s time to swap out your water pump and keep your cooling system running strong.

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Expansion Tank Hose

2X Entries Into Our F80 M3 Sweepstakes

T#:33913469

Part#: 17127560971

Ships in 1 Business Day

$ 138.99 USD

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$ 138.99 USD

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Connects to the bottom of the expansion tank and is routed to the thermostat

Engine Oil Cooler

2X Entries Into Our F80 M3 Sweepstakes

T#:37858351

Part#: 11428585624

Ships in 1 Business Day

$ 43.99 USD

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$ 43.99 USD

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Your vehicle’s oil cooler does exactly what its name implies—it cools engine oil by circulating it through a series of fins filled with flowing coolant. This process helps regulate oil temperature before and after it passes through the oil filter. If the oil cooler fails, it can cause coolant and engine oil to mix, similar to a blown head gasket. Replace your leaking or damaged oil cooler today to prevent further issues. **Seal not included.**

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URO Expansion Tank Hose - G11 G30

2X Entries Into Our F80 M3 Sweepstakes

T#:56760944

Part#: 17128602602

Ships in 1 Business Day

$ 65.99 USD

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$ 65.99 USD

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This URO Parts Coolant Hose replaces brittle or leaking factory lines connecting the expansion tank to the auxiliary water pump and thermostat on B46/B48 powered G-chassis BMWs. Manufactured with reinforced rubber and robust end connections, it restores proper fluid circulation, withstands high operating pressures, and keeps your cooling system operating reliably under daily and hard driving conditions.

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Radiator Hose - Upper

2X Entries Into Our F80 M3 Sweepstakes

T#:373018

Part#: 11531720722

Ships in 1 Business Day

$ 7.99 USD

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$ 7.99 USD

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Hose from radiator to water pump

Coolant Expansion Tank

2X Entries Into Our F80 M3 Sweepstakes

T#:593078

Part#: 17138616418

Ships in 1 Business Day

$ 63.99 USD

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$ 63.99 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.

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Coolant Hose

2X Entries Into Our F80 M3 Sweepstakes

T#:362012

Part#: 11531287651

Ships in 1 Business Day

$ 11.99 USD

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$ 11.99 USD

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From water pump to thermostat housing

Upper Radiator Hose

2X Entries Into Our F80 M3 Sweepstakes

T#:30463943

Part#: 17127619684

Ships in 1 Business Day

$ 37.99 USD

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$ 37.99 USD

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Engine Coolant Hose F22, F23, F30, F31, F34, F32, F33, F36 - B48 ...

2X Entries Into Our F80 M3 Sweepstakes

T#:53644215

Part#: URO-023423

In Stock

$ 65.99 USD

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$ 65.99 USD

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This high-quality hose from URO prevents overheating by maintaining a stable engine temperature, allowing for optimal performance and extended engine life.

Coolant Expansion Tank

2X Entries Into Our F80 M3 Sweepstakes

T#:36947227

Part#: 17138093924

Ships in 1 Business Day

$ 116.99

This product was last offered at the strikethrough price on
08-31-2026

$ 99.99 USD

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$ 99.99 USD

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The coolant expansion tank in your vehicle provides a reservoir for excess fluid as it expands and contracts due to temperature changes. However, frequent exposure to these extreme fluctuations can cause the tank to crack or break over time. To maintain proper coolant levels within the cooling system, any damage to the tank—such as cracks, broken fittings, or damaged mounting points—requires immediate replacement.

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Radiator Hose - Lower

2X Entries Into Our F80 M3 Sweepstakes

T#:373014

Part#: 11531289859

Ships in 1 Business Day

$ 15.99 USD

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$ 15.99 USD

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Replace your radiator hose before a blown hose leaves you stranded.

Coolant Temperature Sensor

2X Entries Into Our F80 M3 Sweepstakes

T#:372927

Part#: 62110788115

Ships in 1 Business Day

$ 5.99 USD

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$ 5.99 USD

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This coolant sensor is located in the coolant system, monitor the temperature for both the gauge and ECU.

Coolant Hose

2X Entries Into Our F80 M3 Sweepstakes

T#:373095

Part#: 11531730351

Ships in 1 Business Day

$ 12.99 USD

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$ 12.99 USD

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Attaches the expansion tank to the heater return hose

Coolant Level Switch - E31 E38 E39 Z8

2X Entries Into Our F80 M3 Sweepstakes

T#:20203

Part#: 61318360876

In Stock

$ 12.99

This product was last offered at the strikethrough price on
04-10-2026

$ 10.99 USD

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$ 10.99 USD

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This is the radiator coolant level sensor that mounts into the bottom of the cooling system expansion tank. With more than 4,000 European vehicle replacement parts, URO is no stranger to the market. Superior metal stock and extremely strict quality control are at the forefront of URO’s agenda and it shows as they become the OE supplier for more and more car companies every single day.

With more than 4,000 European vehicle replacement parts, URO is no stranger to the market. Superior metal stock and extremely strict quality control are at the forefront of URO’s agenda and it shows as they become the OE supplier for more and more car companies every single day.

This item fits the following BMWs:
1999-2000 E39 BMW 528i 540i
2001-2003 E39 BMW 525i 530i 540i
1995-2001 E38 BMW 740i 740il 750il
1990-1998 E31 BMW 840i 840ci
2000-2003 E52 BMW Z8 Roadster

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URO Engine Temperature Sensor

2X Entries Into Our F80 M3 Sweepstakes

T#:37757224

Part#: 13621284397

Ships in 1 Business Day

$ 7.99 USD

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$ 7.99 USD

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This sensor functions as an oil temperature sensor in air-cooled cars and a coolant temperature sensor in water-cooled cars.

Water Hose

2X Entries Into Our F80 M3 Sweepstakes

T#:373139

Part#: 11531266472

In Stock

$ 1.99 USD

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$ 1.99 USD

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Return pipe to water pump

URO Cooling Fan Shroud - BMW E36 318 M42

2X Entries Into Our F80 M3 Sweepstakes

T#:377291

Part#: 17111723067

Back Ordered

$ 44.99 USD

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$ 44.99 USD

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If your shroud has become damaged in any way, replace it immediately. A damaged shroud can break loose and cause damage to underhood components after making contact with a spinning radiator fan.

Upper Radiator Hose

2X Entries Into Our F80 M3 Sweepstakes

T#:592206

Part#: 17129802110

Ships in 1 Business Day

$ 74.99 USD

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$ 74.99 USD

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Coolant Hose

2X Entries Into Our F80 M3 Sweepstakes

T#:373027

Part#: 11531745595

Ships in 1 Business Day

$ 13.99 USD

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$ 13.99 USD

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Connects from water pump to top of radiator

Heater Hose

2X Entries Into Our F80 M3 Sweepstakes

T#:373064

Part#: 64211394292

Back Ordered

$ 5.99 USD

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$ 5.99 USD

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Heater hose, connects to from the heater valve to the right portion of the heater core.

Water Pump O-Ring

2X Entries Into Our F80 M3 Sweepstakes

T#:555320

Part#: 11537830709

In Stock

$ 2.99 USD

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$ 2.99 USD

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When it comes time to replace the water pump, be sure to replace all the O-Rings associated with it to ensure that your car stays leak free. If you are experiencing leaking issues, be sure to inspect these rings, as they might have worn down. This is used on the return pipe to the thermostat housing

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Thermostat Housing

2X Entries Into Our F80 M3 Sweepstakes

T#:377315

Part#: 11531743679

Ships in 1 Business Day

$ 9.14 USD

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$ 9.14 USD

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Made to fit just like the stock unit, this replacement will get your coolant system back in top shape quickly. Broken, cracked, or brittle flanges are no longer a problem. Take the worries out of your morning commute with an inexpensive piece of mind.

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Radiator Drain Plug (Adjustment Screw) - Priced Each

2X Entries Into Our F80 M3 Sweepstakes

T#:593031

Part#: 17111437359

Ships in 1 Business Day

$ 8.99 USD

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$ 8.99 USD

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This is the drain plug (adjustment screw) for manual transmission equipped cars.

Radiator Rubber Mount

2X Entries Into Our F80 M3 Sweepstakes

T#:362916

Part#: 17101439113

Ships in 1 Business Day

$ 4.99 USD

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$ 4.99 USD

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The mount is used to create a sturdy fit for your radiator and help reduce shock to the unit from uneven roads

Lower Radiator Hose

2X Entries Into Our F80 M3 Sweepstakes

T#:373019

Part#: 11531721709

Ships in 1 Business Day

$ 13.99 USD

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Qty

$ 13.99 USD

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Radiator to flange for your M42

URO Radiator Coolant Hose - Upper - BMW M52

2X Entries Into Our F80 M3 Sweepstakes

T#:6968

Part#: 11531740832

Ships in 1 Business Day

$ 8.99

This product was last offered at the strikethrough price on
08-31-2026

$ 7.99 USD

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$ 7.99 USD

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Replace your leaking coolant hose with this URO coolant hose to prevent further coolant loss and overheating

Water Temperature Sensor

2X Entries Into Our F80 M3 Sweepstakes

T#:5760273

Part#: 13627535068

Ships in 1 Business Day

$ 6.99 USD

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Qty

$ 6.99 USD

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Lower Radiator Hose

2X Entries Into Our F80 M3 Sweepstakes

T#:591747

Part#: 11531266956

Ships in 1 Business Day

$ 6.99

This product was last offered at the strikethrough price on
08-31-2026

$ 5.99 USD

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$ 5.99 USD

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Attaches from the radiator to the bottom of the thermostat housing

URO Engine Coolant Hose - BMW E70 X5

2X Entries Into Our F80 M3 Sweepstakes

T#:52586666

Part#: 17127536236

Ships in 1 Business Day

$ 29.99 USD

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$ 29.99 USD

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The ÜRO Parts 20796 Crankcase Vent Valve is a critical component for maintaining engine efficiency and emissions compliance.

Cooling Hose

2X Entries Into Our F80 M3 Sweepstakes

T#:373141

Part#: 11531274210

Back Ordered

$ 9.99 USD

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$ 9.99 USD

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Located under intake manifold

Radiator Hose - Lower

2X Entries Into Our F80 M3 Sweepstakes

T#:361988

Part#: 11531247261

Ships in 1 Business Day

$ 9.99 USD

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$ 9.99 USD

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Connects the thermostat to the lower radiator.

URO Engine Coolant Recovery Tank Hose

2X Entries Into Our F80 M3 Sweepstakes

T#:37858364

Part#: 17127639029

Ships in 1 Business Day

$ 142.99 USD

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$ 142.99 USD

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Genuine BMW REFRIGERANT PIPE Fits BMW Engines including: Over time, exposure to extremely hot coolant can degrade the hoses in your vehicle. Made of reinforced rubber, these hoses can fail in several ways, including splitting at hose clamps, swelling, cracking, or breaking—any of which could leave you stranded. Replace worn hoses at the first sign of damage to keep your coolant where it belongs—inside your engine. During a radiator hose replacement, some fluid loss is unavoidable. Be sure to browse our website for the correct replacement and have it delivered straight to your door. N20

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URO Water Pump - BMW M20 M50

2X Entries Into Our F80 M3 Sweepstakes

T#:639174

Part#: 11519070759

In Stock

$ 52.99 USD

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$ 52.99 USD

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The water pump in your vehicle keeps all that coolant flowing freely. If it begins to fail, overheating problems are inevitable. Don't take a chance on doing damage to engine internals by not replacing your water pump.

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URO Radiator Mounting Plate for Expansion Tank - Z4

2X Entries Into Our F80 M3 Sweepstakes

T#:639486

Part#: 17112248408

Ships in 1 Business Day

$ 69.99 USD

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$ 69.99 USD

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URO Parts is one of the leading manufacturers of high quality direct replacement aftermarket components, covering a wide range of makes and models. All of their replacement parts are manufactured to ISO 9000 certification standards, so you can expect long lasting performance from URO Parts. 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! URO Mounting Plate - This item fits the following BMW Chassis: E85,E86 Fits BMW Engines including: M54,N52

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Thermostat

2X Entries Into Our F80 M3 Sweepstakes

T#:637726

Part#: 11538671517

Ships in 1 Business Day

$ 35.99 USD

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Qty

$ 35.99 USD

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Lower Radiator Hose

2X Entries Into Our F80 M3 Sweepstakes

T#:591742

Part#: 11531250702

Ships in 1 Business Day

$ 12.99 USD

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Qty

$ 12.99 USD

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Replace your hoses and keep your cool

Radiator Hose

2X Entries Into Our F80 M3 Sweepstakes

T#:16441623

Part#: 17 127593490

Back Ordered

$ 46.99 USD

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$ 46.99 USD

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Over the years and with exposure to extremely hot coolant, the coolant hoses in your vehicle can take a beating. Being made of reinforced rubber, these hoses can fail in a number of ways. Splitting at a hose clamp, swelling, cracking, and breaking are just a few of the ways this hose can leave you stranded.

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URO Radiator Coolant Hose - Lower - BMW E39 582i

2X Entries Into Our F80 M3 Sweepstakes

T#:6967

Part#: 11531740481

Ships in 1 Business Day

$ 12.99 USD

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Qty

$ 12.99 USD

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Replace your leaking coolant hose with this URO coolant hose to prevent further coolant loss and overheating

URO Coolant Hose - BMW E34 E32

2X Entries Into Our F80 M3 Sweepstakes

T#:373028

Part#: 64211390934

Ships in 1 Business Day

$ 6.99 USD

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Qty

$ 6.99 USD

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Connects the accumulator to the water valve

Radiator Hose - Upper

2X Entries Into Our F80 M3 Sweepstakes

T#:373013

Part#: 11531287682

Ships in 1 Business Day

$ 8.99

This product was last offered at the strikethrough price on
08-31-2026

$ 7.99 USD

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Qty

$ 7.99 USD

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Splitting at a hose clamp, swelling, cracking, and breaking are just a few of the ways this hose can leave you stranded. Replace it at the first sign of wear to keep your coolant in your engine.

Radiator Hose - Radiator To Engine Oil Cooler - F10 N52

2X Entries Into Our F80 M3 Sweepstakes

T#:50031875

Part#: 17127578399

Ships in 1 Business Day

$ 36.99 USD

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Qty

$ 36.99 USD

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Cooling system reliability depends on the details, and this is a hose you can’t afford to ignore. The Radiator to Engine Oil Cooler Hose plays a key role in circulating coolant between the radiator and oil cooler, helping manage engine oil temperatures when the engine is under load. Over time, factory rubber hoses are subjected to constant heat cycles, system pressure, and chemical exposure that cause internal deterioration. As the material breaks down, the hose can soften, swell, crack, or fail without warning—often leading to overheating and elevated oil temperatures. Replacing a worn hose restores proper coolant flow and helps prevent unexpected failures. Manufactured to meet or exceed OE standards, this hose is formed with the correct bends, diameter, and connections for an exact factory-style fit. Installation is straightforward, utilizing original mounting points for a true plug-and-play replacement with no modification required. Why it matters: Ensures consistent coolant flow to the engine oil cooler Supports stable oil temperatures during spirited or high-load driving Eliminates aging, failure-prone factory rubber Direct-fit design for fast, hassle-free installation Smart preventative maintenance for high-mileage or performance-oriented vehicles

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Coolant Hose

2X Entries Into Our F80 M3 Sweepstakes

T#:373140

Part#: 11531266474

Ships in 1 Business Day

$ 5.99

This product was last offered at the strikethrough price on
08-31-2026

$ 4.99 USD

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Qty

$ 4.99 USD

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Water pipes and coolant hoses are essential for proper cooling. If they are cracked, they are going to need to be replaced as soon as possible to avoid overheating your engine. This hose runs from the water pump housing to the intake manifold

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Expansion Tank Vent Hose

2X Entries Into Our F80 M3 Sweepstakes

T#:373096

Part#: 17111737819

Ships in 1 Business Day

$ 9.99 USD

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Qty

$ 9.99 USD

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Attaches between expansion tank and top of radiator

Coolant Hose

2X Entries Into Our F80 M3 Sweepstakes

T#:591743

Part#: 11531257371

Ships in 1 Business Day

$ 7.99 USD

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Qty

$ 7.99 USD

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Water Pump to Intake Manifold

Coolant Hose

2X Entries Into Our F80 M3 Sweepstakes

T#:57761592

Part#: 17127518581

Ships in 1 Business Day

$ 42.99 USD

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Qty

$ 42.99 USD

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Engine Oil Cooler

2X Entries Into Our F80 M3 Sweepstakes

T#:56977973

Part#: 11428510856

Ships in 1 Business Day

$ 83.99 USD

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Qty

$ 83.99 USD

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Maintain stable oil temperatures and safeguard your BMW's powertrain with this replacement oil cooler from URO Parts.

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