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BMW Cooling System Parts & Accessories for BMW 6 Series E64 (2004-2010)

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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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Performance Thermostat - 90C - N62, N63, S63, N73, S55

T#:637061

Part#: 11537586885

In Stock

Sale - Save 20% $ 93.99

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

$ 75.06 USD

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$ 75.06 USD

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Includes housing and sealing o-ring A thermostat that opens sooner promotes better cooling in your vehicle. Running a lower temperature thermostat will keep everything much cooler. Keeping the engine cooler will help reduce and improve the life of the seals in your engine, saving you time and money, while also helping to increase engine performance. A tune might be required to gain the most from this modification, as well as to get your car's ECU accustomed to seeing lower temperatures.

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Water Pump

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T#:378572

Part#: 11517586781

Ships in 1 Business Day

$ 107.99 USD

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$ 107.99 USD

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Includes required sealing gaskets and o-ring

N62 Engine Collapsible Cooling Pipe - E60 E63 E65 E53 E70

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T#:338249

Part#: 11141439975R

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Starting at $ 300.67 USD

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Starting at $ 300.67 USD

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Has your BMW's with the N62 V8 engine developed a coolant leak at the front of the engine from the timing cover weep hole? If so the it is likely that the coolant transfer pipe seal, located below the intake manifold has developed a leak. Normally, replacing the seal on this pipe would require almost 40 hours of labor and involve removing the entire engine from the car, then removing the cylinder heads, and timing covers. With this new collapsible pipe this repair can be accomplished in under 10 hours! This solution will save you or your mechanic from a bunch of headaches and get your V8 back on the road leak free!

With more than 100 years in the industry, Elring is one of the oldest names in the European autoparts segment. Delivering OE-quality you can rest assured the job will be done right the first time.

video: N62 Cooling Pipe Replacement

Supplement Gasket Kit Parts List

(click to expand)

BMW p/nQtyDescription

115317100481Rear Engine Block O-ring,

115175077171Heat Pipe w O-ring

115175085351Water Pump Gasket

115114399761Valley Pan Pipe Pump

111475072781Valley Pan w Gasket

116175211812Intake Manifold Gasket

071199035962Camshaft Adjuster O-ring

123114399881Alternator Feed Pipe

750il gasket kit deletes 11617521181 and 07119903596 and adds - 8 - 11617537999 profile gaskets

This item fits the following BMWs:
2004-2010 E60 BMW 545i 550i
2004-2010 E63 BMW 645ci 650i
2002-2008 E65 BMW 745i 745li 750i 750li
2004-2006 E53 BMW X5 4.4i X5 4.8is
2007-2013 E70 BMW X5 4.8i xDrive48i

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Coolant Pipe

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T#:27372111

Part#: 11511439976

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$ 10.99 USD

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$ 10.99 USD

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Maintaining the cooling system in your BMW is essential for preserving the engine's longevity. Ensuring proper function of your cooling system is vital for the prolonged lifespan of your vehicle.

Bremmen Auxiliary Fan Temperature Switch - E46 E39 E9X E60 E70 E53 ...

T#:640141

Part#: 13621433077

In Stock

Sale - Save 20% $ 20.99

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

$ 16.79 USD

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$ 20.99

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

$ 16.79 USD

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The auxiliary fan switch activates the auxiliary cooling fan to provide additional cooling under high heat loads, and when the car is stationary

Auxiliary Fan Switch O-Ring

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T#:377077

Part#: 13621433077S

In Stock

$ 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

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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Temperature Sensor

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T#:37892090

Part#: 13621433076

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$ 10.34 USD

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$ 10.34 USD

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Temperature sensor for monitoring coolant and oil

URO Thermostat Gasket - BMW N62 N63 N73 N74

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T#:592908

Part#: 11531440192

Ships in 1 Business Day

$ 0.97 USD

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$ 0.97 USD

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Seals the thermostat to the water pump

URO Thermostat Assembly - BMW E53 E6X E70 F10 F12 F13 F8X

T#:50031902

Part#: 11537586885

In Stock

$ 77.88

This product was last offered at the strikethrough price on
03-08-2026

$ 74.99 USD

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$ 74.99 USD

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Provides optimal engine cooling performance.

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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O-Ring Kit

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T#:376182

Part#: 111414399752

Ships in 1 Business Day

$ 57.99

This product was last offered at the strikethrough price on
04-29-2026

$ 56.99 USD

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$ 56.99 USD

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The O-rings necessary for servicing your water pipe

Expansion Tank Cap

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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

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T#:43750238

Part#: 17127521775

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$ 29.99 USD

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$ 29.99 USD

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

Bremmen Parts Radiator Cooling Fan Assembly - E60, E61, E63, E64, E65...

T#:1195937

Part#: 17427543282

Ships in 1 day

Sale - Save 5% $ 722.15

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

$ 686.04 USD

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$ 722.15

This product was last offered at the strikethrough price on
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$ 686.04 USD

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Cooling fan with housing

Thermostat - 105C

T#:15511827

Part#: 11537502779

Ships on Aug 13, 2026

Sale - Save 3% $ 46.99

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

$ 45.58 USD

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Sale - Save 3%

$ 46.99

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

$ 45.58 USD

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If your vehicle is experiencing cooling issues, chances are the thermostat is the cause. Common symptoms include prolonged warm-up at highway speeds from the thermostat being stuck open, or consistent overheating issues from the thermostat being stuck in the closed position. Either condition can result in poor performance, and potential damage to vital components in your vehicle.

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New Water Pump - With O-Ring - Metal Impellar

T#:56074199

Part#: 11517838201

Ships on Nov 19, 2026

$ 99.99 USD

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$ 99.99 USD

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Auxiliary Fan Switch

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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

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