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BMW Cooling System Parts & Accessories for BMW 5 Series E61 (2006-2010)

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The cooling system is arguably the weakest point in numerous BMWs. If you drive an aging BMW or plan on taking your car to the track like we do, we recommend beefing up your cooling system before going to the track. Generally, the main components in your cooling system that are prone to failure include the following: expansion tank, factory hoses, water pump, thermostat, fan (especially if your vehicle comes factory with a clutch fan), and radiator. Factory BMW expansion tanks are plastic and prone to either breaking off at connection points or combusting. As factory rubber hoses age they either crack or break over time - we offer silicone cooling hose upgrades for most applications to avoid future failures. If you have an older vehicle, your water pump likely comes from the factory with a plastic impeller - we offer upgraded water pumps with metal impellers that are far more reliable. Newer model BMWs utilize electric water pumps - BMW spent millions of dollars engineering these water pumps, but they fail so often that we recommend replacing at 60,000 mile service intervals to avoid being stranded on the side of the road. In terms of thermostats, we offer various upgraded thermostats for racing applications. If your BMW utilizes a clutch fan from the factory, we have several options available in terms of universal electric fans - we recommend replacing these to avoid sending brittle plastic fan blades through your hood. For radiators, we recommend swapping out your radiator for one that does not use plastic connection points like your factory radiator.

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Water Pump - N52 3.0L

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T#:599823

Part#: 11517586925

In Stock

Sale - Save 10% $ 299.99

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

$ 269.99 USD

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Sale - Save 10%

$ 299.99

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

$ 269.99 USD

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Don't take your car's cooling system for granted. A waterpump failure can cost you an engine, which is why preventatively replacing your BMWs waterpump and refreshing the cooling system every 60,000 miles. The water pump is a weak point is the cooling system. Replacing your waterpump will go a long way for keeping your car on the road and operating properly. This water pump fits many 2006 and newer BMW 6 cylinder engines, specifically all the BMWs with the N51, N52, N53 engines. You will also need to purchase replacement aluminum screws Part #11510392553 From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty. This water pump fits the following BMWs: 2008-20xx E82 128i 2006-2006 E90 325i sedan, 330i sedan, 325xi sedan, 330xi sedan 2007-2012 E90 328i sedan, 328xi sedan, 328i xDrive sedan 2007-2012 E92 328i coupe, 328xi coupe, 328i xDrive coupe 2007-2012 E93 328i Convertible 2006-2006 E60 525i, 525xi, 530i, 530xi 2007-2010 E60 528i, 528xi, 528i xDrive 2007-2010 E83 X3 3.0i X3 3.0si 2007-20xx E70 X5 3.0si X5 xDrive30i 2006-2008 E85 Z4 3.0si 2009-20xx E89 Z4 sDrive30i

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URO Thermostat - E60, E61, E82, E83, E88, E90, E91, E92, E93, Z4 ...

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T#:591812

Part#: 11537549476

In Stock

$ 74.99 USD

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$ 74.99 USD

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Restore proper function to your cooling system

URO Water Pump - BMW N52 3.0L

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T#:39768338

Part#: 11517586925

In Stock

$ 296.99 USD

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$ 296.99 USD

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If your engine is over heating or you have noticed coolant loss, there is a chance your water pump has failed. This URO replacement is a great option to get your BMW back on the road without breaking the bank.

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Coolant Expansion Tank

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T#:377314

Part#: 17137542986

In Stock

$ 55.99 USD

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$ 55.99 USD

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The coolant expansion tank in your vehicle gives additional fluid a place to go after expansion and contraction from temperature change. Because it is subjected to such drastic changes on a regular basis, it can often crack or break. You want to keep all the coolant in your vehicle in the cooling system. If your tank has experienced damage such as cracking, nipples breaking off, or mounting point damage, you will need to replace it.

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Auxiliary Fan Switch O-Ring

2X Entries Into Our F80 M3 Sweepstakes

T#:377077

Part#: 13621433077S

Ships in 1 Business Day

$ 0.88 USD

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$ 0.88 USD

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Now you can just replace the o-ring instead of the whole switch

Radiator Hose

2X Entries Into Our F80 M3 Sweepstakes

T#:15445590

Part#: 17127546064

In Stock

$ 46.99 USD

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$ 46.99 USD

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Replace your leaking hose with a new hose to keep your BMW running at its best.

Temperature Sensor

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T#:37892090

Part#: 13621433076

In Stock

$ 10.34 USD

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$ 10.34 USD

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Temperature sensor for monitoring coolant and oil

BMW Engine Coolant Hose Kit

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T#:46753513

Part#: 11537560530-K

Ships in 1 Business Day

$ 18.99 USD

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$ 18.99 USD

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This short, curved coolant hose connects to the auxiliary water pump located near the transmission.

Expansion Tank Hose

For vehicles with Automatic transmission only

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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

Radiator Drain Plug

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T#:37757236

Part#: 0005000185

Ships in 1 Business Day

$ 3.99 USD

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$ 3.99 USD

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URO Coolant Hose - BMW E60 E61 E83 N52

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T#:639219

Part#: 11537519494

Ships in 1 Business Day

$ 20.99 USD

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$ 20.99 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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Expansion Tank Cap

2X Entries Into Our F80 M3 Sweepstakes

T#:373099

Part#: 17137516004

Ships in 1 Business Day

$ 15.99

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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The coolant expansion tank cap keeps necessary pressure on your coolant to increase efficiency. If you have an overheating issue in your vehicle, a simple, quick, and inexpensive part to replace is this cap.

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URO Expansion Tank Vent Pipe - BMW E60 E61 E63 E64 N52 N62

2X Entries Into Our F80 M3 Sweepstakes

T#:43750238

Part#: 17127521775

In Stock

$ 29.99

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

$ 25.99 USD

Limited Qty Sale

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Qty

$ 29.99

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

$ 25.99 USD

Limited Qty Sale

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Replace your cracked and leaking hose with this replacement to keep your BMW running at its best.

Bav Auto Temperature Sensor - BMW E39 E46 E9X E60 F01/02

10X Entries Into Our F80 M3 Sweepstakes

T#:639833

Part#: 13621433076

In Stock

Sale - Save 20% $ 14.99

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

$ 11.99 USD

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Sale - Save 20%

$ 14.99

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

$ 11.99 USD

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This is the coolant temperature sensor used in many BMW models from the late-1990s to the mid-2010s. The engine computer relies on the coolant temp to set the fuel mapping for the engine. As the car warms up the computer changes the fuel mixture. If your car is running a bit rich (too much fuel) it could be because this sensor is failing and not sending the correct info to the computer. This sensor is located in a variety of places depending on the engine. But it's one of those easy replacement items 'while you're in there' when doing a water pump or thermostat replacement. From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty.

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Bav Auto Coolant Expansion Tank - E60 E61 E63 E64 M54 N52 N62 ...

10X Entries Into Our F80 M3 Sweepstakes

T#:640491

Part#: 17137542986

Special Order: No Guaranteed ETA

Sale - Save 10% $ 54.99

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

$ 49.49 USD

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Sale - Save 10%

$ 54.99

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

$ 49.49 USD

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This Bav Auto cooling system expansion tank/coolant reservoir is a direct replacement for the factory unit. Replace your cracked or leaking radiator expansion tank today. From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty.

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URO Coolant Hose - Return Line - E60, E61

2X Entries Into Our F80 M3 Sweepstakes

T#:45278652

Part#: 17127521778

Back Ordered

$ 29.99 USD

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$ 29.99 USD

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Lower; Radiator to Thermostat Housing

Auxiliary Fan Switch

2X Entries Into Our F80 M3 Sweepstakes

T#:376847

Part#: 13621433077

Back Ordered

$ 10.99 USD

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$ 10.99 USD

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Comes with related o-ring

URO Coolant Pipe O-Ring - BMW N52 3.0L

2X Entries Into Our F80 M3 Sweepstakes

T#:37892133

Part#: 11517514942

Ships in 10 Business Days

$ 2.09 USD

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$ 2.09 USD

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URO Coolant Pipe O-Ring - BMW N52 3.0L

Engineered to meet OE coolant pipe o-ring dimensions, the URO Coolant Pipe O-Ring ensures easy installation and a perfect fit for BMW N52 3.0L engines. It is designed to resist cooling system heat and antifreeze, providing reliable performance under demanding conditions. Constructed from durable ECD (Electro Chemical Degradation)-resistant EPDM material, it helps prevent electrolysis, extending the lifespan of your cooling system. With a temperature rating of -40º F to 275º F (-40º C to 135º C), this o-ring is built to withstand extreme temperatures. Supported by a 24-month unlimited mileage warranty, it is a dependable solution for maintaining your BMW’s cooling system efficiency.

Key Benefits:

Precision-molded to OE dimensions for easy installation and perfect fit.
Resists cooling system heat and antifreeze for reliable performance.
Durable ECD-resistant EPDM material prevents electrolysis.
Temperature rating of -40º F to 275º F for extreme condition durability.
Includes a 24-month unlimited mileage warranty for peace of mind.
Specifically designed for BMW N52 3.0L engines.

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