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BMW Cooling System Parts & Accessories for BMW 6 Series F06 (2013+)

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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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OEM Style Hose Clamps

10X Entries Into Our F80 M3 Sweepstakes

T#:338927

Part#: HOSE-CLAMPS

In Stock

Sale - Save 3% $ 3.99

This product was last offered at the strikethrough price on
06-13-2026

Starting at $ 3.87 USD

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Sale - Save 3%

$ 3.99

This product was last offered at the strikethrough price on
06-13-2026

Starting at $ 3.87 USD

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Hose clamps for radiator hoses, coolant hoses, vacuum hoses, or intake hoses. These hose clamps are the same style as your OEM hoses with a smooth inside band to prevent cutting into the hose material.

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Pierburg Full Aluminum Water Pump

T#:6091438

Part#: 11515A05704

In Stock

$ 615.05

This product was last offered at the strikethrough price on
04-01-2026

$ 537.99 USD

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$ 537.99 USD

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N54 and N55 engines are prone to water pump failure - replace every 60,000 miles. If your water pump is starting to fail, you may notice coolant leaks, or even hear a whining noise coming from under the hood. If you think your water pump is starting to fail, replace it as soon as you can. The main downside to an electric water pump is you may also notice nothing - nothing but overheating! Keep your eyes peeled for warning signs it may be time to replace your water pump.

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Bav Auto Spill-Proof Coolant / Antifreeze Funnel

10X Entries Into Our F80 M3 Sweepstakes

T#:580395

Part#: B8800082

In Stock

Sale - Save 15% $ 33.99

This product was last offered at the strikethrough price on
08-19-2026

$ 28.99 USD

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Sale - Save 15%

$ 33.99

This product was last offered at the strikethrough price on
08-19-2026

$ 28.99 USD

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Multiple adapters include to fit a variety of vehicles.

Race German Coolant Temperature Sender Adapter - M12x1.5

T#:6827887

Part#: RGCTSAM12

In Stock

$ 35.99 USD

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$ 35.99 USD

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Race German has devoted themselves to providing quality products for late model BMWs that cover both street and track applications. Race German has now grown their catalog to a wide variety of models and products geared towards keeping your car looking and running nice. For those looking to install an aftermarket coolant temp gauge, Race German has the perfect accessory for you! This adapter is machined out of aluminum and splices into your upper radiator hose. Perfect for use with Race German's E30 temperature gauge but has compatibility with a wire variety of other cars as well! Features: Tapped for M12x1.5 sized sensor 38mm diameter outlets which fit most BMW hoses Includes 2x hose clamps **Does not include temp sensor

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Bav Auto Fan Clutch Wrench - 32mm

10X Entries Into Our F80 M3 Sweepstakes

T#:580348

Part#: B8800019

In Stock

Sale - Save 20% $ 29.99

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

$ 23.99 USD

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Sale - Save 20%

$ 29.99

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

$ 23.99 USD

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Used to remove your fan clutch

Radiator / Cooling System Pressure Tester- Bavarian Autosport ...

10X Entries Into Our F80 M3 Sweepstakes

T#:580397

Part#: B8800084

In Stock

Sale - Save 15% $ 146.99

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

$ 124.94 USD

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Qty

Sale - Save 15%

$ 146.99

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

$ 124.94 USD

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Race German Coolant Temperature Sender Adapter - 1/8NPT

T#:6827888

Part#: RGCTSA1/8NPT

In Stock

$ 35.99 USD

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$ 35.99 USD

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Race German has devoted themselves to providing quality products for late model BMWs that cover both street and track applications. Race German has now grown their catalog to a wide variety of models and products geared towards keeping your car looking and running nice. For those looking to install an aftermarket coolant temp gauge, Race German has the perfect accessory for you! This adapter is machined out of aluminum and splices into your upper radiator hose. Perfect for use with Race German's E30 temperature gauge but has compatibility with a wire variety of other cars as well! Features: Tapped for 1/8NPT sized sensor 38mm diameter outlets which fit most BMW hoses Includes 2x hose clamps **Does not include temp sensor

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CSF High Performance Engine Oil Cooler - BMW F1X M5 M6, F9X M5 M8 ...

2X Entries Into Our F80 M3 Sweepstakes

T#:38195402

Part#: 8317

In Stock

$ 719.00 USD

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$ 719.00 USD

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CSF has been at the forefront of pushing the performance limits of the S63 engine with its Twin Charge Air Coolers. Today, many M5, M6, and M8 models are exceeding 1000HP, but with greater power comes increased heat. As power levels rise, so do oil temperatures, with some owners experiencing temperatures surpassing 240°F (115°C) during intense track sessions. As these M cars continue to age and power thresholds are pushed further, factory cooling systems are struggling to keep up. To address this challenge, CSF partnered with Carbahn to develop a direct-fit solution for both platforms. Engineered to manage the extreme heat generated by Carbahn’s new S63 Stroker Kit, this oil cooler is designed for peak performance and reliability. But enhanced performance isn’t the only reason to upgrade. Many F1X and F9X owners have had to replace their oil coolers due to leaks and damage, primarily caused by their exposed mounting position—a problem worsened by lowered suspension setups. A stronger, more durable design was needed to resolve these issues. Whether your M5, M6, or M8 is a daily driver, weekend cruiser, or dedicated track machine, upgrading the oil cooler is a smart investment. Tuned S63s, especially those with upgraded turbos, produce significantly more heat, making efficient cooling even more critical. Excessive oil temperatures can quickly trigger limp mode and, in extreme cases, cause catastrophic engine failure. CSF’s new High-Performance Engine Oil Cooler isn’t just about optimizing performance—it’s a preventative upgrade that helps avoid costly repairs and extends your engine’s lifespan.

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Auxiliary Water Pump

T#:22064584

Part#: 17122284291

Ships on Feb 1, 2027

$ 512.99 USD

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$ 512.99 USD

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Rein Turbocharger Coolant Return Line - BMW F10 F06/12/13 S63 4.4L En...

2X Entries Into Our F80 M3 Sweepstakes

T#:39059269

Part#: 11538092641

In Stock

$ 71.99 USD

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$ 71.99 USD

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Replace your leaking turbo coolant line to prevent further leaks, coolant loss, and overheating.

Rein Water Hose With Gasket - Water Pump To Engine Inlet

2X Entries Into Our F80 M3 Sweepstakes

T#:17804808

Part#: 11537584630R

Ships in 1 Business Day

$ 40.99 USD

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$ 40.99 USD

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Rein OE quality water hoses are designed to be direct replacements for OE hoses and assemblies. This includes the hose and clamps.

OEM Rein Lower Coolant Hose - N63 4.4L

2X Entries Into Our F80 M3 Sweepstakes

T#:554681

Part#: 17127575427

In Stock at Vendor

$ 51.99 USD

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$ 51.99 USD

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Replace your cracked or leaking radiator hose to prevent further leaks and potentially catastrophic failure.

Fits the following engines:
N63 4.4L

OEM Rein Vent Hose - N63 4.4L

2X Entries Into Our F80 M3 Sweepstakes

T#:554680

Part#: 17127576363

Ships in 1 Business Day

$ 26.99 USD

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$ 26.99 USD

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Replace your cracked or leaking radiator hose to prevent further leaks and potentially catastrophic failure.

Fits the following engines:
N63 4.4L

OEM Pierburg Auxillary Water Pump - BMW N63 S63

T#:22064607

Part#: 11515A36581

Ships on Oct 7, 2026

$ 80.99 USD

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$ 80.99 USD

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Aux electric water pump for the turbo cooling circuit.

OEM Rein Expansion Tank - F01,F06,F10,F12,F13

2X Entries Into Our F80 M3 Sweepstakes

T#:555024

Part#: 17137647283

Ships in 1 Business Day

$ 118.99 USD

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$ 118.99 USD

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Replace your damaged expansion tank to prevent coolant loss or potential overheating issues.

his item fits the following BMW Chassis:
F01,F02,F06,F10,F12,F13

Fits BMW Engines including:
N54,N55,N57N

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Coolant Hose - Priced Each

2X Entries Into Our F80 M3 Sweepstakes

T#:594295

Part#: 11537580969

In Stock

$ 25.91

This product was last offered at the strikethrough price on
07-17-2026

$ 20.99 USD

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$ 20.99 USD

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Comes off the coolant pump. Replacement from Rein.

Bav Auto Angled Hose Pinch Plier Set - 2pc

10X Entries Into Our F80 M3 Sweepstakes

T#:580379

Part#: B8800058

In Stock

Sale - Save 25% $ 32.99

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

$ 24.74 USD

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Qty

Sale - Save 25%

$ 32.99

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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Rein Upper Radiator Hose - F06, F07, F10, F12, F13

For vehicles with High speed synchronization

2X Entries Into Our F80 M3 Sweepstakes

T#:568809

Part#: 17127580957

In Stock

$ 72.99

This product was last offered at the strikethrough price on
06-04-2026

$ 65.99 USD

Limited Qty Sale

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Qty

$ 72.99

This product was last offered at the strikethrough price on
06-04-2026

$ 65.99 USD

Limited Qty Sale

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From radiator to filter housing

Rein Coolant Hose - Lower - F01, F02, F06, F07, F10, F12

2X Entries Into Our F80 M3 Sweepstakes

T#:592014

Part#: 17127600836

In Stock

$ 47.99 USD

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$ 47.99 USD

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Lower radiator hose connected to secondary radiator

COOLANT HOSE

2X Entries Into Our F80 M3 Sweepstakes

T#:591352

Part#: 17127592651

In Stock at Vendor

$ 29.99 USD

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$ 29.99 USD

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Rein BMW Coolant Hose -
This item fits the following BMW Chassis:
F06,F10,F12,F13

Fits BMW Engines including:
N52N,N63,N63N

Rein - Return Hose

2X Entries Into Our F80 M3 Sweepstakes

T#:17771593

Part#: 11537615492

Ships in 1 Business Day

$ 45.99 USD

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$ 45.99 USD

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Replace leaking or faulty hoses with Rein premium hoses to restore your vehicle to safe and optimal performance levels.

Radiator Hose - Metal Flange

2X Entries Into Our F80 M3 Sweepstakes

T#:4826911

Part#: 17127619702

Ships in 1 Business Day

$ 36.99 USD

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$ 36.99 USD

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Cylinder Head Coolant Hose to keep your motor healthy for many miles ahead. Replace damaged or worn coolant hose with upgraded metal flange from Rein.

Rein Water Pump - N63 S63

2X Entries Into Our F80 M3 Sweepstakes

T#:393385

Part#: 11517548263

In Stock

$ 215.99 USD

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$ 215.99 USD

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In German, Rein means Pure. In the automotive industry the Rein name has quickly come to represent quality. With fitments for some of the worldaEURtms finest automobiles including BMW and Mini and guaranteed OE quality, Rein is a name you can trust. Replace your water pump with Rein to get your cooling system back in check.

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Intercooler Expansion Tank

2X Entries Into Our F80 M3 Sweepstakes

T#:584477

Part#: 17137647281

In Stock at Vendor

$ 71.99 USD

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$ 71.99 USD

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Cooling Hose

2X Entries Into Our F80 M3 Sweepstakes

T#:594371

Part#: 17127582894

Ships in 3 Business Days

$ 56.99 USD

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$ 56.99 USD

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Replacement cooling hose from Rein

BMW Radiator Hose Kit - 17127575427

2X Entries Into Our F80 M3 Sweepstakes

T#:46719185

Part#: CHK0583

Ships in 3 Business Days

$ 69.99 USD

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$ 69.99 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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Rein Radiator Mount

2X Entries Into Our F80 M3 Sweepstakes

T#:17804812

Part#: 17117575248

Ships in 3 Business Days

$ 13.99 USD

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$ 13.99 USD

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Rein OE equivalent mounts are produced with high-quality materials to ensure maximum life and a smooth ride.

CSF Universal Large Single-Pass Oil Cooler - Universal Application ...

2X Entries Into Our F80 M3 Sweepstakes
Universal fitment design - modifications may be necessary to run this cooler

T#:53608839

Part#: 8371

Ships in 3 Business Days

$ 499.00 USD

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$ 499.00 USD

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CSF redesigned this cooler and went with a more traditional inlet/outlet orientation. The new single pass design features high efficiency and high durability, but with vertically oriented inlet and outlet connections.

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Auxiliary Water Pump

T#:380532

Part#: 11517566335

Special Order: No Guaranteed ETA

$ 247.99 USD

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$ 247.99 USD

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