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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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BMW Antifreeze Coolant - 1 Gallon
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Genuine BMW - Corporate Logo
T#:1474
Part#: 82141467704
In Stock
6% off MSRP $ 28.29

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$ 26.63 USD
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$ 28.29

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The use of Original BMW Anti-Freeze/Coolant will ensure sufficient cooling in summer and protection against freeze-ups in winter. BMW Antifreeze/Coolant will also guard your vehicle's various engine components against corrosion.
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Genuine BMW HT-12 Coolant / Antifreeze - 1 Gallon
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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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ECS Tuning Aluminum Coolant Bleeder Screw
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ECS - Corporate Logo
T#:363070
Part#: 003530ECS01A
In Stock
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Replace the flimsy plastic bleeder screw used in the coolant expansion tank or in one of the cooling system hoses with this high quality, durable, aluminum bleeder screw. The stock plastic screw can deform over time due to heat or even regular use. We have even seen the head of the screw snap off, leaving the threaded body stuck in the expansion tank. This aluminum screw will help to prevent sudden failure of the bleeder screw, which can result in immediate overheating of the car.

ECS Tuning's Aluminum Coolant Bleeder Screw replaces Genuine BMW Part Number 17111712788

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Coolant Temperature Sensor - M52/S52, M62, M73, M54, S62
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Genuine BMW - Corporate Logo
T#:7257
Part#: 13621703993
In Stock
8% off MSRP $ 32.14

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$ 29.49 USD
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8% off MSRP
$ 32.14

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$ 29.49 USD
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This is the coolant temperature sensor used in many BMW models from the mid-1990s to the mid-2000s. 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.

This coolant temp sensor fits the following BMWs:
1996-1999 E36 BMW 323is 323ic 328i 328is 328ic M3, located in cylinder head
1999-2003 E39 BMW 540i, located on side of water pump
1999-2001 E38 BMW 740i 740il, located on side of water pump
1995-1996 E38 BMW 750il, located on side of water pump
1990-1999 E31 BMW 850i 850ci, located on side of water pump
2000-2006 E53 BMW X5 3.0i, located in cylinder head
2000-2006 E53 BMW X5 4.4i/4.6is/4.8is, located on side of water pump
1997-2002 Z3 BMW Z3 2.5i Z3 3.0i, located in cylinder head
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ECS E36 Silicone Radiator Hose Kit
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ECS - Corporate Logo
T#:362964
Part#: 003628ECS01
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Unlike factory rubber hoses, silicone can withstand higher temperatures and pressures with minimal wear. Rubber will wear out and weaken so don't let it bite you when it counts! Silicone has been proven during extreme racing conditions and won't be the weak link that ruins your day.

This E36 ECS silicone hose set replaces two hoses - 
11531708499, upper radiator hose 
11531726344, lower radiator hose 

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ECS Billet Cylinder Head Outlet Hose Adapter - BMW N52 N54 N55 3.0L N...
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ECS - Corporate Logo
T#:556105
Part#: 024797ECS01
In Stock
Sale - Save 25% $ 76.99

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$ 57.74 USD
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Some of the biggest issues when owning a BMW can come from cooling system components. Even through years of improvement, the same failure is seen with the plastic fittings and adapters from years of hot to cold temperature fluctuation. The N52/N54/N55/N20 engine sees failure at the plastic cylinder head outlet adapter connecting the cylinder head to the thermostat hose. The stock plastic adapter simply shears off at the end of the barbed fitting, creating a massive coolant leak. The engineering team at ECS Tuning decided a billet aluminum piece was a much better option to contend with the temperature fluctuation. Since other offerings on the market want you to modify your OE hose to be reused, they even developed a silicone replacement hose. These 2 pieces can be purchased separately if you decide to reuse your existing OE hose or in a package kit together for a single click upgrade. Features: Manufactured from billet 6061-T6 with type III anodized for exceptional durability and corrosion resistance. Much stronger part than OEM plastic ​​Will not become brittle and fatigued over time due to thermal cycling. This will prevent the part from breaking during removal and re-installation. Follows OEM form for perfect fitment. Utilizes (and includes) OEM O-ring 11537545278 to ensure a proper seal. Recommended clamp size is 25-40mm
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E36/E46/Z3/Z4 ECS Tuning Aluminum Water Pump Pulley - Black
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ECS - Corporate Logo
T#:363707
Part#: 001977ECS03A
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Most of the pulleys on your BMW engine are plastic, which become brittle and frail over time and from engine bay heat. A failed pulley could leave you stranded which is why it is vital to inspect the pulleys during routine maintenance. This is an aluminum version of the stock water pump pulley used on the M50/M52/M52TU/M54 engine in the E36, E46, Z3, Z4, and other models. It uses the same hardware and the original belt as the stock plastic pulley. But the aluminum will last much longer.
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Genuine BMW Temperature Sensor
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Genuine BMW - Corporate Logo
T#:367843
Part#: 13621433076
In Stock
16% off MSRP $ 66.05

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$ 55.45 USD
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16% off MSRP
$ 66.05

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$ 55.45 USD
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OE BMW Coolant Expansion Tank Cap - E90 E92 F30 F32 F10 F12 F06 ...
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Genuine BMW - Corporate Logo
T#:19454
Part#: 17117639020
In Stock
21% off MSRP $ 34.96

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$ 27.70 USD
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21% off MSRP
$ 34.96

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$ 27.70 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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ECS Aluminized Silicone Water Pump Hose V2.0 - - E9x E8x E6x N52 N54...
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ECS - Corporate Logo
T#:640062
Part#: 008286LA01
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When it comes to cooling system hose replacement, the "U" shaped hose connecting the water pump to the thermostat is usually the first to fail. A lot of this comes from its close proximity to the hot downpipes, while some of this failure comes from the sharp bends in the hose. 

Why not upgrade when you're due for a replacement? The ECS Tuning silicone hose replacement fixes these issue with two key features in their design. Offering this hose in a much more heat resistant silicone instead of OE rubber and having the hose wrapped in aluminum. The aluminum coating acts as a heat shield to further protect the silicone as well as reducing the temperatures forced on the coolant running through the hose. 

Replaces OE hose #11537545665

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ECS Exact-Fit Silicone Expansion Tank Hose - F-Chassis N55
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ECS - Corporate Logo
T#:37892077
Part#: 006402LA03
In Stock
Sale - Save 25% $ 104.99

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$ 78.74 USD
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Over time, factory rubber hoses break down and eventually fail as a result of consistent exposure to chemical-rich antifreeze and hot engine bay temperatures. While all coolant hoses are prone to failure, the expansion tank hose is especially susceptible to failure. To fix this issue, ECS has created the ultimate performance hose upgrade! Crafted from heavy-duty, fiber-reinforced silicone, this ECS Exact-Fit Silicone Expansion Tank Hose withstands higher temperatures and greater pressure than the factory rubber alternative. Engineered to resist electrochemical degradation, it’s tested for continuous operation at 250°F and over 45 psi, ensuring improved reliability, enhanced flow, and reduced turbulence. To further improve upon the factory hose design, ECS engineers developed precision-machined billet aluminum "Quick Connect" hose ends. Unlike the OEM plastic counterparts, these robust components resist heat-induced failure, ensuring long-term durability and reliability. Replaces OEM Part Numbers: 17128570061, 17128507235. Installation is straightforward: begin by removing the factory overflow hose and retaining clips. Transfer the OEM metal clips from the factory connector to the new billet fittings, then press the fittings onto the expansion tank and upper coolant hose. The included silicone hose is routed through the OEM path and securely clamped onto the billet fittings. After installation, the fittings can stay in place, only the silicone needs to be removed for future maintenance. Key Benefits: Direct OEM Fitment – Retains factory hose routing while eliminating the weaknesses of rubber construction. High-Temperature Resistance – Silicone material withstands extreme heat and chemicals for long-term durability. 2-Ply, Fiber-Reinforced Fluorosilicone Construction – Provides superior resistance to glycol-based coolant and other harsh fluids. Upgraded Billet Aluminum Quick-Connect Ends – CNC-machined from 6061-T6 aluminum with integrated O-rings, ensuring a secure, leak-free connection that won’t degrade over time. Easy Installation – Includes stainless steel clamps for a hassle-free, bolt-on upgrade.
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M50 M52 S50 S52 High Performance Aluminum Radiator
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ECS - Corporate Logo
T#:385051
Part#: 006084ECS01AKT
In Stock
Sale - Save 25% $ 420.99

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$ 315.71 USD
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Every hero has its Achilles heel, and for many BMWs, it's the cooling system. Featuring an overabundance of brittle, crack-prone, leak-inducing plastic, the otherwise robust drivetrain is let down by a weak cooling system. Now, ECS has come to the rescue with a solution to cure those problems once and for all and leave the days of cracked plastic end tanks and coolant-stained driveways far behind. This radiator was designed with performance, durability, and good looks in mind to create a great all-around upgrade for any E36 owner, from the daily driver to the weekend warrior. Featuring fully aluminum construction, all the joints are precision TIG-welded for superior durability and show-car looks, with polished end tanks further adding to the great look of this radiator. The easily-stripped plastic drain plug and fan switch holes have been replaced with threaded alloy bungs in the stock locations, and the weak plastic tabs for the factory fan shroud have been replaced with beefy aluminum as well. Designed as a drop-in solution, this radiator will fit like a stock replacement, but will look and perform far better, while costing substantially less than the competition. What are you waiting for? Upgrade your cooling system today and leave your worries behind - and look great doing it - with this ECS Tuning Performance Aluminum Radiator. Note: Owners of automatic E36s utilizing a stock-style transmission cooler must drill two small holes in the lower frame of the radiator.
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ECS Performance Coolant Outlet Hose Kit - F22/23 F3X F87 N55 ...
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ECS - Corporate Logo
T#:599846
Part#: 004503LA01
Ships on Sep 21, 2026
Sale - Save 15% $ 109.99

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$ 93.49 USD
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The perfect upgrade for your connection between your thermostat and cylinder head. Designed using durable silicone and billet aluminum to greatly outlast the OE rubber and plastic combination. Some of the weakest points of the cooling systems in BMW's can come down to the OE plastic fittings breaking down from the constant changes in temperature, softening these plastic components. When this happens, even simply moving the hose slightly could cause the fitting to crack, causing the coolant to leak all over. The ECS design silicone hose with billet aluminum adapter retains OE fitment with superior strength to not only handle the performance, but also stand up to the wear and tear of a daily driver. Features: Manufactured from billet 6061-T6 and type III anodized for exceptional durability and corrosion resistance. Much stronger part than OEM plastic Will not become brittle and fatigue over time due to thermal cycling. This will prevent the part from breaking during removal and re-installation. Constructed of 4-Ply reinforced silicone for improved durability over the failure-prone OE rubber hose. Flourosilicone lined internal layer for exceptional chemical resistance. Silicone offers reduced thermal conductivity as well as improved resistance to ozone and UV degradation for improved performance and durability. Follows OEM form for perfect fitment. Utilizes OEM O-ring 11537545278 to ensure a proper seal. Replaces Genuine BMW Part Number: 11537598234
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Genuine BMW Expansion Tank - F80 M3,F82 M4,F83
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Genuine BMW - Corporate Logo
T#:198696
Part#: 17132284600
In Stock
9% off MSRP $ 318.56

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

$ 290.92 USD
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9% off MSRP
$ 318.56

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Replace your damaged expansion tank to prevent coolant loss or potential overheating issues.
Coolant Expansion Tank Cap - E9x M3, E60 E63 F01 E70 E71
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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
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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.
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Genuine BMW Heater Inlet Pipe - E46 E39 E53 E83 E85 Z3
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Genuine BMW - Corporate Logo
T#:6939
Part#: 11531705210
In Stock
$ 66.99 USD
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This is the Genuine BMW plastic heater inlet pipe that connects the cylinder head to the heater inlet on cars with the M52 or M54 engine.The plastic on this hose becomes brittle over time and eventually leads to failure.

This item fits the following BMWs:
1999-2005 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi
1999-2003 E39 BMW 525i 528i 530i
2004-2006 E83 BMW X3 2.5i X3 3.0i - M54 engine
2000-2006 E53 BMW X5 3.0i
1999-2002 Z3 BMW Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i
2003-2005 E85 BMW Z4 2.5i Z4 3.0i
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Genuine BMW Transmission Drain Plug - Manual Transmission - Multiple ...
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Genuine BMW - Corporate Logo
T#:15238
Part#: 23127602815
In Stock
7% off MSRP $ 24.30

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$ 22.50 USD
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7% off MSRP
$ 24.30

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$ 22.50 USD
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Genuine BMW Screw Plug - M18X1,5X12
This item fits the following BMW Chassis:
E82 1M Coupe,E82,E85 Z4,E89 Z4,E90,E92,E93,F22,F30,F31,F32,F33,F34,F36,F80 M3,F82 M4,F83

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ECS Exact-Fit Silicone Upper Radiator Hose - F22/F23/F3X N55 ...
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ECS - Corporate Logo
T#:31390581
Part#: 008642LA02
Ships on Aug 17, 2026
Sale - Save 25% $ 75.99

This product was last offered at the strikethrough price on
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$ 56.99 USD
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Whether you're refreshing your cooling system or replacing aging components, this ECS Silicone Upper Radiator Hose is the ultimate upgrade. Designed for durability, performance, and a factory-perfect fit, these premium silicone hoses outperform standard rubber in every way.

Made from heavy-duty, reinforced 4-ply fluorosilicone, this ECS hose can withstand extreme temperatures and pressures far beyond OEM rubber. Engineered to resist oil, fuel, and electrochemical degradation, this hose is tested for continuous operation at 250°F and over 45 psi, delivering superior reliability, reduced turbulence, and improved coolant flow.

Key Benefits:

Direct OE Fitment – Perfectly molded to factory specifications for seamless installation. Enhanced Durability – Heat-resistant silicone prevents cracking, swelling, and deterioration over time. Superior Cooling Performance – Smoother internal passageways improve coolant flow and system efficiency. Pre-Installed Quick-Connect Fittings – Hassle-free installation with OEM-style connectors. Premium Hardware Included – Comes with German-style stainless steel worm-drive hose clamps for a secure fit. Kit Includes:

ECS Silicone Upper Radiator Hose Pre-Installed Factory "Quick-Connect" Flanges (2) Stainless Steel Worm-Drive Hose Clamps (2) Replaces OEM Part Number 17127604542.

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Genuine BMW Expansion Tank Cap - E3X / E53 / Z4
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Genuine BMW - Corporate Logo
T#:207187
Part#: 17117639022
In Stock
21% 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.

$ 27.67 USD
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21% 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.

$ 27.67 USD
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Genuine BMW Radiator Cap - 2,0Bar
This item fits the following BMW Chassis:
E36 M3,E39 M5,E46 M3,E85 Z4M,E53 48IS,E36,E38,E39,E46,E53 X5,E65,E83 X3,E85 Z4,E86 Z4,F06,F10,F12,F13

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ECS Silicone Radiator Hose Kit (with Connectors) - M52 M54
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ECS - Corporate Logo
T#:638748
Part#: 006205LA09
In Stock
Sale - Save 25% $ 198.99

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$ 149.24 USD
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Unlike factory rubber hoses, silicone can withstand higher temperatures and pressures with minimal wear. Rubber will wear out and weaken so don't let it bite you when it counts! Silicone has been proven during extreme racing conditions and won't be the weak link that ruins your day. This kit is specifically designed for the enthusiast that wants uprated cooling hoses, but also wants to address the heat-cycled plastic connectors and O-rings that are also prone to failure in higher mileage or older vehicles.Kit includes a brand new pair of connectors. This E46 NM ECS silicone hose set replaces two hoses - Upper Radiator Hose - 17127510952 Lower Radiator Hose - 11531436408
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Genuine BMW Water Pipe - E46 E39 Z4 Z3 (M52 M54)
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Genuine BMW - Corporate Logo
T#:360688
Part#: 11537502525
In Stock
$ 90.99 USD
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$ 90.99 USD
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Replace your cracked/broken coolant pipe with this Genuine BMW pipe to ensure long term reliability and perfect fitment.

Genuine BMW Auxiliary Fan Switch
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Genuine BMW - Corporate Logo
T#:341058
Part#: 13621433077
In Stock
16% off MSRP $ 66.05

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$ 55.55 USD
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$ 66.05

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Genuine BMW Expansion Tank Hose - F22 M235i/ix, F87 M2, F3X 335i/ix 4...
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Genuine BMW - Corporate Logo
T#:46445
Part#: 17128570061
In Stock
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$ 49.99 USD
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$ 54.77

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

Genuine BMW radiator hoses are always a perfect option when performing maintenance thanks to their high quality and longevity.

This item fits the following BMW Chassis:
F22,F30,F31,F32,F33,F34,F36

Fits BMW Engines including:
N55

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Metal Water Pipe With Clip - Red - MINI Cooper R55/R56/R57/R58/R59/R6...
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ECS - Corporate Logo
T#:30463925
Part#: 048583LA02
In Stock
Sale - Save 5% $ 130.99

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$ 124.44 USD
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Solves the issues with the plastic version, ECS upgraded metal


N54 3.0L ECS Silicone Coolant Outlet Hose
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ECS - Corporate Logo
T#:555020
Part#: 025216ECS01
In Stock
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Upgrade your cooling system with durable silicone hoses that offer extended life and enhanced heat tolerance. Say goodbye to stock limitations and opt for silicone hoses that retain OEM fitment while overcoming typical OEM hose flaws. These hoses are designed to resist deterioration and softening due to coolant heat cycles, ensuring prolonged longevity compared to traditional rubber hoses.

Specifically, this hose connects from the thermostat housing outlet to the front of the cylinder head. Its features include:

  • Inclusive of both upper and lower clamps for easy installation.
  • Crafted from 4-Ply reinforced silicone, ensuring superior durability compared to OE rubber hoses that are prone to failure.
  • Internal layer lined with Flourosilicone for exceptional chemical resistance.
  • Silicone construction provides reduced thermal conductivity, enhanced resistance to ozone, and UV degradation, thereby boosting overall performance and longevity.
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BMW E30 Performance Aluminum Radiator
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ECS - Corporate Logo
T#:367036
Part#: 006084ECS01A
In Stock
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$ 309.74 USD
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ECS Tuning has answered the call, delivering a solution to eliminate these issues once and for all, bidding farewell to cracked plastic end tanks and unsightly coolant stains on driveways.

Key Features and Benefits:

  • Performance and Durability: This radiator is meticulously crafted with an emphasis on performance, durability, and aesthetics. It represents a comprehensive upgrade for all E30 owners, whether they use their vehicles for daily commuting or weekend adventures.

  • Full Aluminum Construction: The radiator is constructed entirely from aluminum, ensuring superior strength and longevity. Precision TIG welding at all joints not only enhances durability but also imparts a show-car quality appearance.

  • Polished End Tanks: Polished end tanks contribute to the radiator's striking appearance, elevating the overall aesthetics of your BMW E30.

  • Enhanced Design: Weak plastic components, such as the drain plug and fan switch holes, have been replaced with threaded alloy bungs in stock locations. The factory fan shroud's weak plastic tabs have been upgraded to robust aluminum.

  • Drop-In Solution: Designed as a hassle-free drop-in solution, this radiator seamlessly fits into place like a stock replacement, yet it offers remarkable performance and aesthetics at a substantially lower cost than comparable options.

Upgrade your cooling system today, bid farewell to worries, and do it all with style – choose the ECS Tuning Performance Aluminum Radiator for your BMW E30. Experience superior cooling performance, durability, and aesthetic enhancement in one exceptional radiator upgrade. Don't wait; make the smart choice for your BMW E30 today.

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ECS E46 M3 Silicone Radiator Hose Kit
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ECS - Corporate Logo
T#:378149
Part#: 003631ECS01
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$ 149.24 USD
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Unlike factory rubber hoses, silicone can withstand higher temperatures and pressures with minmal wear. Rubber will wear out and weaken so don't let it bite you when it counts! Silicone has been proven during extreme racing conditions and won't be the weak link that ruins your day.

This kit is specifically designed for the enthusiast that wants uprated cooling hoses, but also wants to address the heat-cycled plastic connectors and o-rings that are also prone to failure in higher mileage or older vehicles.

This E46 M3 ECS silicone hose set replaces two hoses - 
11537830716, upper radiator hose 
11537830715, lower radiator hose 

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Genuine BMW Expansion Tank Vent Hose - F80 M3, F82/3 M4
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Genuine BMW - Corporate Logo
T#:200328
Part#: 17122284686
Ships in 2 Business Days
3% off MSRP $ 60.99

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$ 58.99 USD
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3% off MSRP
$ 60.99

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

Genuine BMW Manual Transmission Crossmember
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Genuine BMW - Corporate Logo
T#:49465
Part#: 22316760531
Ships on Aug 28, 2026
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$ 240.71 USD
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$ 253.99

This product was last offered at the strikethrough price on
06-25-2026

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Genuine BMW Gearbox Support
This item fits the following BMW Chassis:
E85 Z4M,E46,E85 Z4,E86 Z4

ECS Silicone Radiator Hoses - N52
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ECS - Corporate Logo
T#:37723492
Part#: 008641LA03
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Tired of dealing with brittle, dry-rotted rubber hoses? Whether you're refreshing your cooling system or replacing aging components, this ECS Silicone Radiator Coolant Hose Set is the ultimate upgrade. Designed for durability, performance, and a factory-perfect fit, these premium silicone hoses outperform standard rubber in every way.

Why Choose Silicone Over Rubber?

Made from heavy-duty, reinforced 4-ply fluorosilicone, ECS hoses withstand extreme temperatures and pressures far beyond OEM rubber hoses. Engineered to resist oil, fuel, and electrochemical degradation, these hoses are tested for continuous operation at 250°F and over 45 psi, delivering superior reliability, reduced turbulence, and improved coolant flow.

Key Benefits:

Direct OE Fitment – Perfectly molded to factory specifications for seamless installation. Enhanced Durability – Heat-resistant silicone prevents cracking, swelling, and deterioration over time. Superior Cooling Performance – Smoother internal passageways improve coolant flow and system efficiency. Pre-Installed Quick-Connect Fittings – Hassle-free installation with OEM-style connectors. Premium Hardware Included – Comes with German-style stainless steel worm-drive hose clamps for a secure fit. Kit Includes:

Upper Radiator Hose Lower Radiator Hose Pre-Installed Factory "Quick-Connect" Flanges (4) Stainless Steel Worm-Drive Hose Clamps (4) Replaces OEM Part Numbers: 17127531579 & 17127564478

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Metal Water Pipe With Clip
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ECS - Corporate Logo
T#:7276185
Part#: 11537589713
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$ 124.44 USD
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$ 130.99

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Solves the issues with the plastic version, ECS upgraded metal
Water Pump Gasket - S54
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Genuine BMW - Corporate Logo
T#:12466
Part#: 11517831099
In Stock
14% off MSRP $ 41.99

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$ 36.13 USD
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14% off MSRP
$ 41.99

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$ 36.13 USD
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Steel water pump gasket for your Z3 / M3

E46 M3, Z4M ECS Tuning Aluminum Water Pump Pulley
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ECS - Corporate Logo
T#:367060
Part#: 002778ECS01
Ships on Nov 24, 2026
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This product was last offered at the strikethrough price on
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$ 90.89 USD
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Most of the pulleys on your BMW engine are plastic, which become brittle and frail over time and from engine bay heat. A failed pulley could leave you stranded which is why it is vital to inspect the pulleys during routine maintenance. This is an aluminum version of the stock water pump pulley used on the S54 engine in the E46 M3, MZ3, and Z4M. It's the same size and uses the same hardware and the original belt as the stock plastic pulley. But the aluminum will last much longer.
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Genuine BMW Engine Coolant Expansion Tank Cap - 17135A1BD89
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Genuine BMW - Corporate Logo
T#:29699315
Part#: 17135A1BD89
In Stock
6% off MSRP $ 34.99

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$ 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 Expansion Tank - E53 X5, E46 M52/54, E83 X3 ...
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Genuine BMW - Corporate Logo
T#:360752
Part#: 17117573781
In Stock
$ 173.21 USD
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We have found that the expansion tanks should be replaced based on age as well as condition. Expansion tanks seem to have a lifespan of less than six years before they show signs of fatigue and wear. Pre-emptively replacing the expansion tank as part of an overall maintenance plan can prevent you from getting stranded from a sudden failure later on.
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Genuine BMW Thermostat - F30 335i, F32 435i, F22 M235i
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Genuine BMW - Corporate Logo
T#:36100
Part#: 11537598865
In Stock
16% off MSRP $ 194.95

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$ 163.95 USD
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16% off MSRP
$ 194.95

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

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Engine running a little hot or is the temp gauge not telling you anything? The thermostat might be the likely problem. Many cooling issues start with the thermostat. This is electronically controlled by the engine computer based on the cooling demands of the engine. And cooling components are working harder than ever. Engine performance is also dependant on temperature - as temperatures rise and pass a certain threshold the engine computer will begin reducing power. Stay on top of your cooling maintenance by replacing critical components preventatively.

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:
2014+ F22 BMW M235i M235i xDrive
2014+ F23 BMW M235i
2012+ F30 BMW 335i 335i xDrive - Sedan
2013+ F32 BMW 435i 435i xDrive - Coupe
2013+ F33 BMW 435i Convertible 435i xDrive Convertible- Convertible
2014+ F34 BMW 335i xDrive GT - Gran Tourismo
2014+ F36 BMW 435i Gran Coupe 435i xDrive Gran Coupe
2014+ F15 BMW X5 sDrive35i X5 xDrive35i
2015+ F16 BMW X6 sDrive35i X6 xDrive35i
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BMW E8X E9X Billet Aluminum Radiator Drain Plug
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ECS - Corporate Logo
T#:367075
Part#: 013197ECS01A
In Stock
Sale - Save 25% $ 47.99

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$ 35.99 USD
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$ 47.99

This product was last offered at the strikethrough price on
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Ensure your BMW's cooling system stays in top shape with ECS Tuning's Billet Aluminum Radiator Drain Plug. Designed specifically for late-model 1-Series and 3-Series BMWs, this replacement plug addresses the common issue of weak plastic drain plugs. Constant exposure to engine heat and road debris makes the plastic plugs brittle, leading to frustration with broken plugs. ECS Tuning's billet aluminum alternative puts an end to these problems.

  • Durable Replacement: Say goodbye to weak plastic drain plugs.
  • Enhanced Material: Billet aluminum provides superior strength and longevity.
  • Deeper Screw Head: Accommodates Phillips head or flat head screwdrivers for better engagement.
  • Reduced Stripping Risk: Minimize the chance of stripping out the screw head.

Don't let cooling system maintenance be a hassle. Order ECS Tuning's Billet Aluminum Radiator Drain Plug now and experience worry-free service.

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Genuine BMW Thermostat - 88ºC
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Genuine BMW - Corporate Logo
T#:360691
Part#: 11537511580
In Stock
3% off MSRP $ 59.99

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$ 57.99 USD
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$ 59.99

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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Coolant Expansion Tank Hose -Z3
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Genuine BMW - Corporate Logo
T#:6936
Part#: 11531436122
In Stock
$ 55.99 USD
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This is the engine coolant hose that goes from the coolant reservoir / expansion tank to the top of the radiator. When replacing any cooling component it is a good idea to check all radiator hoses and replace as necessary.

This item fits the following BMWs:
1999-2002 Z3 BMW Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i
2001-2002 Z3 BMW Z3 M Roadster M Coupe
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Radiator Fan Shroud - E36 Z3 6 cyl
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Genuine BMW - Corporate Logo
T#:4476
Part#: 17111723031
Ships in 1-2 days
1% off MSRP $ 108.24

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

$ 106.96 USD
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1% off MSRP
$ 108.24

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

$ 106.96 USD
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This radiator fan shroud mounts to your radiator and helps to direct airflow through the radiator. It's also the mounting point for the coolant reservoir.

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:
1992-1998 E36 BMW 323is 323ic 325i 325is 325ic 328i 328is 328ic M3
1997-1998 Z3 BMW Z3 2.8
1998-2000 Z3 BMW M Roadster M Roadster
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Genuine BMW Coolant Expansion Tank - E46 M3
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Genuine BMW - Corporate Logo
T#:13185
Part#: 17112283344
In Stock
7% off MSRP $ 215.23

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

$ 199.98 USD
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7% off MSRP
$ 215.23

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

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This radiator coolant reservoir/expansion tank for E46 M3 is a common failure item as the plastic weakens over time and stress crack will lead to coolant leaks. If your car has over 80k miles and hasn't had one of these replaced, we highly recommend it during your next major service. We have found that the aftermarket coolant reservoirs fail easier than the original BMW piece so we only offer the BMW type on this part.

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:
2001-2006 E46 BMW M3
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Genuine BMW Heater Hose - E30 M20 2.5L 2.7L
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Genuine BMW - Corporate Logo
T#:368716
Part#: 64211380527
Ships in 2 Business Days
4% off MSRP $ 46.22

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

$ 44.58 USD
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4% off MSRP
$ 46.22

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

$ 44.58 USD
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Genuine BMW Return Hose
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Genuine BMW - Corporate Logo
T#:360670
Part#: 11531436410
In Stock
$ 42.49 USD
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Aluminized Silicone Water Pump Hose - with clamps
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ECS - Corporate Logo
T#:568837
Part#: 020414ECS01KT
In Stock
Sale - Save 25% $ 113.99

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$ 113.99

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Genuine BMW Coolant Hose - E90 E92 E93 M3
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Genuine BMW - Corporate Logo
T#:22342
Part#: 11537838219
In Stock
5% off MSRP $ 71.02

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

$ 67.79 USD
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5% off MSRP
$ 71.02

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

$ 67.79 USD
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Genuine BMW Vent Pipe -
This item fits the following BMW Chassis:
E90,E92,E93

Fits BMW Engines including:
S65


Genuine BMW Rear Engine Block Coolant Passage Cover - N63 4.4L ...
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Genuine BMW - Corporate Logo
T#:568416
Part#: 11148483799
Ships in 2 Business Days
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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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$ 86.99

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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Genuine BMW Water Pump Pulley - E39 M5, Z8
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Genuine BMW - Corporate Logo
T#:35640
Part#: 11511406933
In Stock
$ 66.99 USD
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Genuine BMW Pulley - D=119mm
This item fits the following BMW Chassis:
E39 M5,E39

Fits BMW Engines including:
S62

ECS S54 Exact-fit Water Pipe Connecting Line
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ECS - Corporate Logo
T#:393542
Part#: 013178ECS
In Stock
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$ 119.99 USD
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$ 159.99

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The ECS Exact-fit water line is a perfect upgrade if you're tired of dealing with brittle failure prone parts under your hood. The reinforced fluorosilicone hose has been pre-formed to route the same way your stock line did so you can maintain that clean factory installed appearance. Upgrading the line fitting with a billet aluminum piece eliminates the failure prone plastic fitting giving your cooling system strength.

Included:

Aluminum fitting

  • Material: 6061-T6 Aluminum - MIL-A-8625F Type II Class 2 black anodized for superior corrosion resistance and strength
  • Single-piece design avoiding additional interfaces that may cause leaks
  • Matches OEM style connection to upper coolant hose

Silicone hose

  • Material: Black Reinforced Fluorosilicone Lined Coolant Safe Silicone
  • Pre-formed hose to ensure OEM style routing and appearance
  • Can maintain the use of your stock retaining clips to route the hose in identical locations (due to slight variations in silicone the retainer on the expansion tank may not fit)
  • Pressure tested to ensure 2X operating pressures to ensure reliability
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Genuine BMW Thermostat With Housing - M52 M54
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Genuine BMW - Corporate Logo
T#:360689
Part#: 11537509227
In Stock
3% off MSRP $ 174.45

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

$ 169.69 USD
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3% off MSRP
$ 174.45

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

$ 169.69 USD
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Expansion Tank Water Pipe / Connecting Hose - E46 M3
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Genuine BMW - Corporate Logo
T#:12482
Part#: 17112229053
In Stock
1% off MSRP $ 96.35

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

$ 95.28 USD
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1% off MSRP
$ 96.35

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

$ 95.28 USD
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This is the Genuine BMW coolant reservoir / expansion tank vent hose for E46 M3 with the S54 engine.

This item fits the following BMWs:
2001-2006 E46 BMW M3