BMW Cooling System Parts & Accessories for BMW 5 Series G30 (2017+)

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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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Gen1 B58 Water Pump Replacement Kit - BMW F22/23 F3X B58 3.0L ...
For early vehicles with the Gen1 B58 (B58A) - Not compatible with the B58TU (B58D) engine
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:27871814
Part#: 11518632585TKT
Ships in 4 Business Days
Sale - Save 1% $ 154.99

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

$ 152.79 USD
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Sale - Save 1%
$ 154.99

This product was last offered at the strikethrough price on
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$ 152.79 USD
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If your water pump is leaking coolant, there is a good chance one of the seals has failed. This is especially common when your coolant level gets too low and your BMW's water pump runs without coolant. The water pump shaft seal can fail as it gets too hot and you will begin to notice coolant dripping from the weep hole found at the bottom of your pump. We recommend replacing the whole pump to ensure your BMW stays cool for many more years! This kit includes the basic parts necessary to replace your water pump: GEBA Mechanical Pump with an upgraded metal impeller Elring Water Pump Gasket Genuine BMW Water Pump Bolts (x6) Don't forget to pick up a gallon of BMW coolant as well to top your system back off once you have completed your pump installation! Servicing your accessory belt and tensioner is also great to do at this time as the belt must be removed before replacing your pump.
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Water Pump & Thermostat Kit - Gen 1 B46 2.0L
For model years 2017-2019
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:35863149
Part#: 11518638026TKT
In Stock
Sale - Save 5% $ 740.99

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

$ 705.38 USD
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$ 740.99

This product was last offered at the strikethrough price on
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BMW's cooling system has long been a known weak spot, with the water pump and thermostat being two of the most common trouble areas. This remains true even in the latest B-Series engines found in 2016 and newer BMW models. This kit includes a brand-new OEM Pierburg water pump, a Bremmen thermostat (now referred to as a Heat Management Module), and one gallon of BMW's G48 coolant concentrate (enough to make two gallons of 50/50 coolant). Avoid spending thousands at the dealership or over $600 on Genuine BMW parts! These components can be replaced with high-quality OEM parts in just an afternoon using basic hand tools.
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Genuine BMW - Corporate Logo
T#:600648
Part#: 83192468442
In Stock
$ 35.95 USD
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Ensure optimal cooling for your BMW with Genuine BMW Coolant, providing the quality and performance your vehicle deserves. When it comes to maintaining your BMW, replacing old or worn-out parts with factory replacements is essential, and fluids are no exception. Experience the benefits of Genuine BMW Coolant: Specially designed for BMW vehicles. Factory replacement for optimal performance. Addresses flaws in the factory cooling system. Prevents antifreeze loss in both cold and hot weather. Recognizable green color for easy identification. BMW HT-12 can be used in any vehicle that currently contains G48 coolant (blue), but G48 should not continue to be used in vehicles that were originally filled with HT-12. (see compatibility image) This HT-12 Antifreeze/Coolant is exclusively formulated and produced for BMW to protect your engine year-round when used as directed. It fulfills the very high standards and requirements set by BMW to help protect the engine against freezing, boil over, corrosion, and excessive silicate gel precipitation. This ethylene glycol-based antifreeze contains no nitrites or phosphate, greatly reducing the possibility of harmful deposit formation. BMW antifreeze provides protection for metals such as cast iron, steel, and aluminum.
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Genuine BMW - Corporate Logo
T#:19454
Part#: 17117639020
In Stock
22% off MSRP $ 34.96

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

$ 27.27 USD
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22% off MSRP
$ 34.96

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

$ 27.27 USD
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This radiator expansion tank cap is used most BMW's from 2006+. It is a common failure item. When this item fails, it cannot hold pressure which results in your BMW overheating. If you are overhauling your coolant system, now is the time to consider preventative replacing this cap. It is also referred to as the coolant reservoir cap.

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:
2008-2013 E82 BMW 128i 135i 135is 1M Coupe
2014+ F22 BMW 228i 228i xDrive M235i M235i xDrive
2012+ F30 BMW 320i 320i xDrive 328d 328d xDrive 328i 328i xDrive 335i 335i xDrive - Sedan
2013+ F31 BMW 328i xDrive 328d xDrive - Wagon
2014+ F34 BMW 328i xDrive GT, 335i xDrive GT - Gran Tourismo
2013+ F32 BMW 428i 428i xDrive 435i 435i xDrive - Coupe
2013+ F33 BMW 428i Convertible 428i xDrive Convertible 435i Convertible 435i xDrive Convertible- Convertible
2014+ F36 BMW 428i Gran Coupe 428i xDrive Gran Coupe 435i Gran Coupe 435i xDrive Gran Coupe
2014+ F07 BMW 535i GT, 535i xDrive GT
2012+ F10 BMW 528i 528i xDrive 535i 535i xDrive 535d 535d xDrive
2011+ F10 BMW 528i 528i xDrive 535i 535i xDrive 535d 535d xDrive
2012+ F12 BMW 640i 640i xDrive 650i 650i xDrive
2013+ F06 BMW 640i Gran Coupe 640i xDrive Gran Coupe 650i Gran Coupe 650i xDrive Gran Coupe
2009+ F01 BMW 740i 740li 740li xDrive 740ld xDrive 750i 750li 750i xDrive 750li xDrive 760li
2013+ E84 BMW X1 sDrive28i X1 xDrive28i X1 xDrive35i
2011+ F25 BMW X3 xDrive28i X3 xDrive28d X3 xDrive35i
2015+ F26 BMW X4 xDrive28i X4 xDrive35i
2007-2013 E70 BMW X5 3.0si X5 4.8i X5 xDrive30i X5 xDrive35d X5 xDrive35i X5 xDrive48i X5 xDrive50i X5M
2014+ F15 BMW X5 sDrive35i X5 xDrive35d X5 xDrive35i X5 xDrive50i
2008-2014 E71 BMW X6 xDrive35i X6 xDrive50i X6M
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OEM Rein Aluminum Coolant Flange Connector - BMW & MINI B36 B46/B48 G...
For vehicles with the earlier Gen1 B46/B48 engine - Not compatible with the later TU en...
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:33679696
Part#: 11118511205
In Stock
$ 50.99 USD
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$ 50.99 USD
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Plastic coolant flanges become brittle over time, which can cause them to crack and fail. Prevent overheating and coolant loss with this OEM Rein upgraded aluminum coolant flange.

Genuine BMW - Corporate Logo
T#:194502
Part#: 17117639021
In Stock
22% off MSRP $ 34.96

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

$ 27.29 USD
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22% off MSRP
$ 34.96

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

$ 27.29 USD
Free Shipping on orders $49 and up
This radiator expansion tank cap is used most BMW's from 2006+. It is a common failure item. When this item fails, it cannot hold pressure which results in your BMW overheating. If you are overhauling your coolant system, now is the time to consider preventative replacing this cap. It is also referred to as the coolant reservoir cap.
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Genuine BMW - Corporate Logo
T#:341058
Part#: 13621433077
In Stock
16% off MSRP $ 66.05

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

$ 55.55 USD
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16% off MSRP
$ 66.05

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

$ 55.55 USD
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Rein Coolant Hose Metal Connector With Sensor - BMW F22/23 F3X B58 Ge...
For models with the earlier B58 Gen1 engine only - Not compatible with the later TU eng...
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:38789910
Part#: CHK0940
Ships on Nov 4, 2026
$ 73.99 USD
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$ 73.99 USD
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The OE plastic connector is a frequent failure point due to brittleness and cracking caused by repeated thermal cycling and hydrolysis. Hydrolysis, the breakdown of plastic or rubber by water exposure, weakens the structure over time, leading to failure. To combat these issues, Rein’s upgraded connectors are constructed from high-strength aluminum, eliminating the vulnerabilities of plastic connectors and ensuring long-term durability.
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Genuine BMW - Corporate Logo
T#:29699315
Part#: 17135A1BD89
In Stock
6% off MSRP $ 34.99

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

$ 32.99 USD
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6% off MSRP
$ 34.99

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

$ 32.99 USD
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Genuine BMW Cover Lid
This item fits the following BMW Chassis:
E70 X5M,E71 X6M,E70 X5,E71 X6,F01,F02,F06,F10,F12,F13,F15,F16,F30,F80 M3,F82 M4,F83,i3i12

Genuine BMW Coolant Hose - Water Pump to Cylinder Head - BMW B58C B58...
For models with the later B58C or B58D engines only - will not fit the early B58A engine
Genuine BMW - Corporate Logo
T#:620753
Part#: 11538650983
Ships in 1-2 days
2% off MSRP $ 106.99

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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2% off MSRP
$ 106.99

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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Connects from the top coolant port on the water pump to the cylinder head
Rein Coolant Hose Aluminum Connector - BMW F22/23 F3X B58 Gen1 ...
For models with the earlier B58 Gen1 engine only - Not compatible with the later TU eng...
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:39059272
Part#: 11118619408
Back Ordered
$ 47.99 USD
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$ 47.99 USD
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The OE plastic connector is a frequent failure point due to brittleness and cracking caused by repeated thermal cycling and hydrolysis. Hydrolysis, the breakdown of plastic or rubber by water exposure, weakens the structure over time, leading to failure. To combat these issues, Rein’s upgraded connectors are constructed from high-strength aluminum, eliminating the vulnerabilities of plastic connectors and ensuring long-term durability.
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Electronic Thermostat And Coolant Distribution Module
10X Entries Into Our F80 M3 Sweepstakes
Bremmen Parts - Corporate Logo
T#:26538308
Part#: 11537642854
In Stock
Sale - Save 5% $ 308.99

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

$ 292.63 USD
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Sale - Save 5%
$ 308.99

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

$ 292.63 USD
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Genuine BMW - Corporate Logo
T#:542563
Part#: 11118619408
In Stock
$ 45.99 USD
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Genuine BMW Engine Block Coolant Connector Drain

Ensure optimal coolant flow in your BMW engine block with the Genuine BMW Engine Block Coolant Connector Drain. This authentic BMW coolant connector drain is designed to maintain proper engine temperature and prevent overheating, ensuring reliable performance and longevity for your BMW.

  • Genuine OEM part for guaranteed compatibility and quality
  • Specifically designed for BMW engine blocks for precise fit and function
  • Helps prevent coolant leaks and system damage
  • Facilitates easy draining of coolant during maintenance
  • Ensures consistent engine cooling for optimal performance
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Coolant Hose - Supply 1 - G11, G30, G32
Auxiliary Coolant Pump - Engine
Genuine BMW - Corporate Logo
T#:551572
Part#: 64219317614
In Stock
5% off MSRP $ 60.99

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

$ 57.99 USD
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5% off MSRP
$ 60.99

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

$ 57.99 USD
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GEBA Upgraded Mechanical Waterpump - BMW B58 3.0L
For vehicles with the Gen1 B58 (B58A) engine only - Not compatible with the B58TU (B58D...
Geba - Corporate Logo
T#:13727082
Part#: 11518632585
In Stock
$ 96.99 USD
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$ 96.99 USD
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The B58 platform is incredible for high power builds and tuning, but is still prone to the cooling system issues that have plagued BMW for years. Here at ECS, we've noticed customers having issues with the factory water pumps on B58. Enter GEBA, bringing to market a solution that should be more robust than the mechanical pump installed from the factory! This Geba version pump includes a metal roller instead of factory-style plastic!
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Connector - Upgraded Aluminum Metal
10X Entries Into Our F80 M3 Sweepstakes
Bremmen Parts - Corporate Logo
T#:27205374
Part#: 11118511205
In Stock
Sale - Save 20% $ 42.99

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

$ 34.39 USD
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Sale - Save 20%
$ 42.99

This product was last offered at the strikethrough price on
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$ 34.39 USD
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Vent Hose Assembly
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:18468306
Part#: 17127576363
In Stock
$ 29.99 USD
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Aluminum connector vs OEM plastic The connector cracks/leaks over time causing coolant to leak and/or overheating problems Molded to OE coolant hose shape for superb fitment Engine heat and ozone resistant Durable ECD (Electro Chemical Degradation)-resistant EPDM material helps prevent electrolysis from breaking down the rubber from the inside-out Temperature rating: -40º F to 275º F (-40º C to 135º C)
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Genuine BMW - Corporate Logo
T#:144381
Part#: 61369198302
In Stock
2% off MSRP $ 49.99

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

$ 48.99 USD
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2% off MSRP
$ 49.99

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

$ 48.99 USD
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Genuine BMW Relay - 130A
This item fits the following BMW Chassis:
F01,F02,F06,F10,F12,F13,F15,F16,F22,F30,F31,F32,F33,F34,F36,F80 M3,F82 M4,F83,I12 i8

Coolant Outlet Connector - B58A (F3X, G30, G01/G02)
10X Entries Into Our F80 M3 Sweepstakes
Bremmen Parts - Corporate Logo
T#:36913371
Part#: 11118619408
In Stock
$ 33.99 USD
Free Shipping on orders $49 and up

The Coolant Outlet Connector connects the engine block coolant outlet to the upper radiator hose.

Due to fragile plastic construction and consistent exposure to hot, chemical-rich engine coolant, this piece is prone to degradation and (potentially) complete failure.

Whether you're fixing a failed connector or preemptively replacing this failure-prone component, choose this quality replacement from Bremmen Parts for a lasting repair.

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Thermostat - B48
10X Entries Into Our F80 M3 Sweepstakes
For vehicles with the Gen1 B48/B46 only - not compatible with the later Gen2 B48 (TU) engines
Bremmen Parts - Corporate Logo
T#:23648673
Part#: 11537644811
In Stock
Sale - Save 15% $ 223.99

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

$ 190.39 USD
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Sale - Save 15%
$ 223.99

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

$ 190.39 USD
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BMW F30 B58 Electronic Thermostat And Coolant Distribution Module ...
For vehicles with the earlier B58A engine - Will not fit the B58C or B58D updated engines
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:27372122
Part#: 11537642854
Ships in 2 Business Days
$ 265.97 USD
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$ 265.97 USD
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BMW F30 B58 Electronic Thermostat And Coolant Distribution Module from Turner Motorsport is an essential component for maintaining precise engine temperature control. Managed by the vehicle’s computer, this thermostat ensures optimal performance and efficiency by regulating engine and coolant temperatures accurately.

  • Precise Temperature Control: Managed by the BMW vehicle's computer for accurate engine and coolant temperature regulation.
  • Enhanced Performance: Ensures optimal engine performance and efficiency by maintaining the correct operating temperature.
  • Genuine BMW Quality: Authentic part designed specifically for BMW F30 models with B58 engines.
  • Reliable Operation: Built to meet BMW's high standards for reliability and durability.
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Genuine MINI - Corporate Logo
T#:28337931
Part#: 17135A1BD89
In Stock
26% off MSRP $ 34.99

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

$ 25.99 USD
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26% off MSRP
$ 34.99

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

$ 25.99 USD
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Genuine BMW - Corporate Logo
T#:35869
Part#: 11531439134
Ships in 1-2 days
$ 32.99 USD
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Genuine BMW Blind Plug
This item fits the following BMW Chassis:
E70 X5M,E71 X6M,E63,E70 X5,E71 X6,F01,F02,F06,F10,F12,F13,F15,F16



Genuine BMW Electronic Thermostat and Coolant Distribution Module - B...
For vehicles with the later B58C or B58D engine - Will not fit the B58A early engine
Genuine BMW - Corporate Logo
T#:617366
Part#: 11538642559
Ships in 1-2 days
9% off MSRP $ 491.99

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

$ 449.99 USD
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9% off MSRP
$ 491.99

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

$ 449.99 USD
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Genuine BMW electronic thermostat that is controlled by the car's computer for optimal control over the engine and coolant's temperature.
Genuine BMW - Corporate Logo
T#:535793
Part#: 13628649765
Ships in 1-2 days
9% off MSRP $ 66.99

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

$ 60.99 USD
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9% off MSRP
$ 66.99

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

$ 60.99 USD
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Genuine BMW Coolant temperature sensor located on the cylinder head next to the bracket for the electric coolant pump.
Pierburg - Corporate Logo
T#:25142296
Part#: 11518638026
In Stock
$ 146.99 USD
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$ 146.99 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. This has been a common problem amongst most German vehicles. Water Pump failure can lead to your vehicle making an unnecessary trip to the repair shop. If your pump stops working, coolant temperatures rise rapidly and can overheat the engine, leading to head gasket or even piston ring failure. This is a great preventative maintenance item when doing any type of timing belt replacement. This is a common replacement around 80,000-100,000 miles.
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Junction Heat Hose - 11538606278
10X Entries Into Our F80 M3 Sweepstakes
Bremmen Parts - Corporate Logo
T#:36913362
Part#: 11538606278
In Stock
Sale - Save 21% $ 54.99

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

$ 43.24 USD
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Sale - Save 21%
$ 54.99

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

$ 43.24 USD
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This junction heat hose, made from rubber, is prone to cracking, dry rot, and brittleness over time, often leading to coolant leaks at the front of the engine. Such leaks pose a significant risk to your engine’s health, as rapid coolant loss can cause overheating and severe damage.

Replace your worn or leaking heat hose with this high-quality OE replacement from Bremmen Parts. Engineered for a precise fit and long-lasting performance, this hose ensures a reliable repair and helps protect your engine from potential overheating.

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Genuine BMW - Corporate Logo
T#:191037
Part#: 11118511205
In Stock
1% off MSRP $ 37.97

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

$ 37.50 USD
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1% off MSRP
$ 37.97

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

$ 37.50 USD
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Genuine BMW Connector
Mechanical Water Pump
For LCI models with the B58C engine (2 port cylinder head) with 48V Hybrid System
Vehicle made 05/01/2024 and On!
Genuine BMW - Corporate Logo
T#:40004842
Part#: 11515B4A144
In Stock
9% off MSRP $ 218.99

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

$ 199.99 USD
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9% off MSRP
$ 218.99

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

$ 199.99 USD
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New mechanical water pump directly from BMW - includes the water pump gasket

URO Coolant Outlet Flange - BMW F2X 1
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:50031880
Part#: 11118619408
In Stock
$ 55.99 USD
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Replaces the plastic OE flange with durable aircraft-quality aluminum.
Rein Aluminum Oil Filter Housing - BMW B58
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:49404665
Part#: 11428583901
In Stock
$ 440.00 USD
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For those who push their engines to the limit, "good enough" is a liability. Upgrade to the Rein HEU0116 Aluminum Oil Filter Housing—the professional’s choice for durability and peace of mind.

Saleri - Corporate Logo
T#:30164633
Part#: 11518638026
Ships in 1-2 days
$ 195.99

This product was last offered at the strikethrough price on
05-07-2026

$ 174.99 USD
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$ 174.99 USD
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Genuine BMW - Corporate Logo
T#:602507
Part#: 11518651287
Ships in 1-2 days
9% off MSRP $ 88.99

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

$ 80.99 USD
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9% off MSRP
$ 88.99

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

$ 80.99 USD
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Auxillary water pumps are electric water pumps that pump coolant to critical components of your BMW. A failing pump can cause excessive noise and intermittent cooling issues, leading to potential damage if not replaced quickly enough. If the electric motor dies completely, chances are any parts downstream from the pump will overheat and fail, leading to costly repairs and replacements.
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B58 Coolant Hose - Auxiliary Water Pump to Turbocharger
10X Entries Into Our F80 M3 Sweepstakes
Bremmen Parts - Corporate Logo
T#:36981057
Part#: 11538611277
In Stock
$ 61.99 USD
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This Bremmen Parts Coolant Hose is designed to connect the turbocharger to the auxiliary water pump, providing a premium replacement for B58-equipped BMW models. Constructed with high-quality, heat-resistant materials, this hose ensures reliable and efficient engine cooling, even under extreme temperatures. Engineered to meet OEM specifications, it offers a precise fit and a secure connection, optimizing coolant flow to maintain the performance and longevity of your BMW’s turbocharged engine.

Key Benefits:

Premium Materials: Crafted from heat-resistant materials to endure high-temperature conditions. OEM-Compatible Fit: Matches BMW’s original specifications for an easy, hassle-free installation. Enhanced Cooling: Designed to support efficient coolant flow in turbocharged engines. Durable Construction: Built to last, minimizing the need for frequent replacements and ensuring long-term reliability.

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Genuien BMW Thermostat Module Coolant Pipe W/ Wire Bracket - BMW G42 ...
For models with the B48D, B46D, or B46X engines only - Not for the earlier Gen1 or late...
Genuine BMW - Corporate Logo
T#:636427
Part#: 11538651265
Ships in 1-2 days
4% off MSRP $ 78.99

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

$ 75.99 USD
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4% off MSRP
$ 78.99

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

$ 75.99 USD
Free Shipping on orders $49 and up
This coolant pipe connects to the thermostat module. When replacing the thermostat module, aka the heat management module, or other nearby cooling components, such as the water pump, this coolant pipe should be replaced. The o-ring seal also tends to flatten over time, preventing a proper seal after reinstallation, leading to a coolant leak.
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Genuine BMW Cylinder Head Coolant Hose - BMW G42 G2X G30 G01 G02 G29 ...
For models with the B48D, B46D, or B46X engines only - Not for the earlier Gen1 or late...
Genuine BMW - Corporate Logo
T#:620754
Part#: 11538650984
Ships in 1-2 days
5% off MSRP $ 138.99

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

$ 131.99 USD
Free Shipping on orders $49 and up
5% off MSRP
$ 138.99

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

$ 131.99 USD
Free Shipping on orders $49 and up
Over time, rubber hoses and plastic coolant flanges can become brittle due to numerous heat cycles. This often leads to cracks and coolant leaks on the front side of the engine. Additionally, the two o-rings that seal this hose to the cylinder head and the water pump housing can flatten, leading to leaks when reinstalled. When servicing your cooling system, it is advised to replace this hose to prevent leaks and potential overheating.
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Genuine BMW - Corporate Logo
T#:48780791
Part#: 11515A74E79
In Stock
2% off MSRP $ 133.99

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

$ 130.99 USD
Free Shipping on orders $49 and up
2% off MSRP
$ 133.99

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

$ 130.99 USD
Free Shipping on orders $49 and up
Genuine BMW replacement coolant flange for back of water pump housing
HEPU Mechanical Water Pump - BMW Gen1 B58 (B58A)
For vehicles with the Gen1 B58 (B58A) engine only - Not compatible with the B58TU (B58D...
Hepu - Corporate Logo
T#:27805177
Part#: 11518632585
In Stock
$ 264.99

This product was last offered at the strikethrough price on
05-04-2026

$ 251.99 USD
Free Shipping on orders $49 and up
$ 251.99 USD
Free Shipping on orders $49 and up
Restore your BMW's cooling performance with this new HEPU mechanical water pump. BMW coolant pumps, both electric and mechanical, are known to fail for various reasons. If your mechanical pump has failed, this low-cost alternative is a great option to get your BMW back on the road!
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Genuine BMW - Corporate Logo
T#:21637227
Part#: 17135A7BC90
In Stock
6% off MSRP $ 198.99

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

$ 187.99 USD
Free Shipping on orders $49 and up
6% off MSRP
$ 198.99

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

$ 187.99 USD
Free Shipping on orders $49 and up

Genuine BMW - Corporate Logo
T#:600633
Part#: 11518671654
In Stock
8% off MSRP $ 141.99

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

$ 129.99 USD
Free Shipping on orders $49 and up
8% off MSRP
$ 141.99

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

$ 129.99 USD
Free Shipping on orders $49 and up
OEM Rein Turbocharger Coolant Supply Line - BMW Gen2 B46/B48 2.0L ...
For models with the Gen2 B46/B48 engine only - Not for earlier Gen1 engines
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:34315143
Part#: 11538629971
Ships in 3 Business Days
$ 47.99

This product was last offered at the strikethrough price on
04-28-2026

$ 42.99 USD
Free Shipping on orders $49 and up
$ 42.99 USD
Free Shipping on orders $49 and up
Turbo coolant supply lines feed coolant to the turbocharger, ensuring temperatures are kept in check. If your coolant line is leaking, it is important to replace it as soon as possible to prevent coolant loss, overheating, and turbo damage.
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OEM Rein Lower Coolant Hose - N63 4.4L
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:554681
Part#: 17127575427
In Stock at Vendor
$ 51.99 USD
Free Shipping on orders $49 and up

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
Rein - Corporate Logo
T#:554680
Part#: 17127576363
Ships in 2 Business Days
$ 26.99 USD
Free Shipping on orders $49 and up

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

Fits the following engines:
N63 4.4L


Genuine BMW Coolant Thermostat Module - BMW G20 G22/23 G30 B48 2.0L ...
For models with the B48D, B46D, or B46X engines only - Not for the earlier Gen1 or late...
Genuine BMW - Corporate Logo
T#:617367
Part#: 11538642560
In Stock
9% off MSRP $ 446.99

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

$ 408.99 USD
Free Shipping on orders $49 and up
9% off MSRP
$ 446.99

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

$ 408.99 USD
Free Shipping on orders $49 and up
Modern BMW thermostats are electronically controlled, allowing the DME/ECU to directly regulate coolant flow throughout the engine and its components. This system enables the thermostat to operate based on a broader range of temperature inputs, such as coolant, cylinder head, engine block, and oil temperatures, for more refined control of engine warm-up and temperature across diverse conditions. Unlike traditional thermostats, which simply open or close to permit coolant flow, this system uses a rotary valve for more dynamic control. The rotary valve adjusts to various positions, allowing for partial or full coolant flow to designated passageways as needed. This precision control helps your BMW's engine reach optimal temperatures quickly and ensures efficient heat management under various driving conditions.
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Genuine BMW Cooant Pump with Support Housing - BMW G42 G2X G30 G01 G0...
For models with the B48D, B46D, or B46X engines only and without the Energy Recovery Sy...
Genuine BMW - Corporate Logo
T#:606625
Part#: 11518650988
In Stock
9% off MSRP $ 300.99

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

$ 274.99 USD
Free Shipping on orders $49 and up
9% off MSRP
$ 300.99

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

$ 274.99 USD
Free Shipping on orders $49 and up
Mechanical water pumps circulate coolant between the engine block, cylinder head, and radiators. Over time, the seals and bearings can wear out, leading to leaks from the impeller shaft and around the pump face. Some BMW water pumps have even had imellers that come loose from the shaft, resulting in little or no coolant flow. Plastic coolant flanges attached to the housing can become brittle over time, cracking or breaking off completely, leading to coolant loss and overheating. Restore cooling functionality and performance with a brand new pump directly from BMW. This coolant pump assembly includes the pump, the coolant support housing, four of the plastic coolant flanges, and a new water pump pulley.
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Genuine BMW - Corporate Logo
T#:35863148
Part#: 11518638026KT
In Stock
$ 763.99 USD
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$ 763.99 USD
Free Shipping on orders $49 and up
The cooling system has always been a weak point for BMW. Two of the biggest issues are the water pump and thermostat. This continues to be true even on the newest B-Series engines found in 2016+ BMWs. This kit includes a brand new Genuine BMW water pump, a new thermostat (now referred to as a Heat Management Module), and 1 gallon of BMW's G48 coolant concentrate (makes 2 gallons of 50/50 coolant). Don't spend thousands of dollars at the dealership, these can easily be replaced in an afternoon with basic mechanic's tools.
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Uro - Aluminum Coolant Hose Connector for E9x, and Z4
2X Entries Into Our F80 M3 Sweepstakes
URO Premium - Corporate Logo
T#:37757289
Part#: 11537545890PRMK
In Stock
$ 24.99 USD
Free Shipping on orders $49 and up
Aluminum Connector that replaces the OEM brittle Plastic


Genuine BMW - Corporate Logo
T#:636029
Part#: 11518482250
Ships in 1-2 days
8% off MSRP $ 200.99

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

$ 183.99 USD
Free Shipping on orders $49 and up
8% off MSRP
$ 200.99

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

$ 183.99 USD
Free Shipping on orders $49 and up
Genuine BMW Water Pump - Mechanical - B58 3.0L
For vehicles with the Gen1 B58 (B58A) engine only - Not compatible with the B58TU (B58D...
Genuine BMW - Corporate Logo
T#:45005555
Part#: 11515B51A35
In Stock
9% off MSRP $ 524.99

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

$ 479.99 USD
Free Shipping on orders $49 and up
9% off MSRP
$ 524.99

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

$ 479.99 USD
Free Shipping on orders $49 and up
Engineered specifically for the Gen1 B58, this water pump ensures optimal functionality and longevity, maintaining your BMW's cooling system at its best.