BMW Coolant & Radiator Hoses for BMW Z Series E85/6 (2003-2008)

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We offer replacement hoses from several OE brands that we trust, along with performance silicone upgrades for those who want increased wear resistance compared to factory rubber.
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Rein Coolant Bleeder Screw CHW1575 - Priced Each
2X Entries For Our Spin To Win Sweepstakes! We Price Match - Give Us A Call or Chat!
Rein - Corporate Logo
T#:591955
Part#: 17111712788
In Stock
$ 2.99 USD
Free Shipping on orders $49 and up
Coolant Bleeder Screw is a critical component for maintaining your BMW’s cooling system. Designed to release trapped air from the coolant lines, this screw ensures efficient coolant flow and prevents overheating. Specifically engineered for BMW models, it enhances the overall performance and longevity of your engine by maintaining proper temperature regulation. Comes with O-Ring.
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Vaico Lower Radiator Hose - BMW Z4 2.5 3.0 M54
For roadster models with production date up to 04/2004
We Price Match - Give Us A Call or Chat!
Vaico - Corporate Logo
T#:363540
Part#: 17127514405
In Stock
$ 73.99 USD
Free Shipping on orders $49 and up
$ 73.99 USD
Free Shipping on orders $49 and up
Replace your leaking coolant hose and prevent engine overheating with this replacement Vaico coolant hose.
URO Premium - Corporate Logo
T#:554118
Part#: 11537516414
Ships in 2 Business Days
Sale - Save 6% $ 13.99
$ 13.17 USD
Free Shipping on orders $49 and up
Sale - Save 6% $ 13.99
$ 13.17 USD
Free Shipping on orders $49 and up
Subject to the ravages of heat cycling during each driving cycle - rubber hoses are more susceptible to wear and fatigue than aluminum piping. BMW utilized a single part number for their aluminum pipe and hose combination - making this part typically over $100 to replace. Rein to the rescue! By supplying just the rubber component, repairs can be made quickly and cost effectively (and without the waste of scraping a perfectly good aluminum pipe!) Includes both hose clamps and rubber hose.
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Genuine BMW - Corporate Logo
T#:35671
Part#: 11517514942
Ships in 1-2 days
$ 12.99 USD
Free Shipping on orders $49 and up


Genuine BMW O-Ring -
This item fits the following BMW Chassis:
E70 X5,E82,E83 X3,E85,E86,E89 Z4,E90,E92,E93,F10,F25 X3

Fits BMW Engines including:
N51,N52,N52N

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Genuine BMW - Corporate Logo
T#:46233
Part#: 17127545277
Ships Jul 1, 2025
3% off MSRP $ 99.99
$ 96.99 USD
Free Shipping
3% off MSRP $ 99.99
$ 96.99 USD
Free Shipping

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:
E85,E86

Fits BMW Engines including:
N52
 

 

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Genuine BMW Radiator Hose - Lower - Z4 2.5i 3.0i M54
For roadster models with production date from 04/2004
Genuine BMW - Corporate Logo
T#:19531
Part#: 17127535591
Ships Jul 1, 2025
Sale - Save 3% $ 105.99
$ 102.80 USD
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Sale - Save 3% $ 105.99
$ 102.80 USD
Free Shipping


Genuine BMW Water Hose -
This item fits the following BMW Chassis:
E85

Fits BMW Engines including:
M54


OEM Rein Coolant Hose - E60 E61 E83 Z4
2X Entries For Our Spin To Win Sweepstakes! We Price Match - Give Us A Call or Chat!
Rein - Corporate Logo
T#:583591
Part#: 11537519494
Ships Jul 22, 2025
$ 16.99 USD
Free Shipping on orders $49 and up
Attaches from inlet pipe to heat exchanger. Over time, coolant hoses begin to get brittle and are susceptible to cracking and splitting. Replace your cracked or leaking coolant hose to prevent further leaks and potentially catastrophic failure.
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Rein Radiator Hose - Lower - Z4
For roadster models with production date from 04/2004
2X Entries For Our Spin To Win Sweepstakes! We Price Match - Give Us A Call or Chat!
Rein - Corporate Logo
T#:386347
Part#: 17127535591
Ships Jul 22, 2025
$ 51.99 USD
Free Shipping on orders $49 and up
$ 51.99 USD
Free Shipping on orders $49 and up
Keep your cooling system leak free

ECS Silicone Radiator Hoses - N52
For SULEV Vehicles with Engine Code N51B30 & Auxiliary Heating (S536A)
10X Entries For Our Spin To Win Sweepstakes!
ECS - Corporate Logo
T#:32516370
Part#: 008641LA02
Ships on Aug 18, 2025
Sale - Save 10% $ 124.99
$ 112.49 USD
Free Shipping
Sale - Save 10% $ 124.99
$ 112.49 USD
Free Shipping

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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Meyle - Coolant Inlet Hose Section for various BMW models
2X Entries For Our Spin To Win Sweepstakes!
Meyle - Corporate Logo
T#:40478168
Part#: 11537516414
Special Order: No Guaranteed ETA
New Item
$ 6.99 USD
$ 6.99 USD
This Meyle component offers OEM-level fit and function for hassle-free installation and dependable cooling system performance.
Meyle Coolant Hose - BMW N52 3.0L
2X Entries For Our Spin To Win Sweepstakes! We Price Match - Give Us A Call or Chat!
Meyle - Corporate Logo
T#:35829327
Part#: 11537521049
Special Order: No Guaranteed ETA
New Item
$ 20.99 USD
Free Shipping on orders $49 and up
Over time, coolant hoses in your vehicle can deteriorate due to prolonged exposure to high temperatures from the coolant. Made of reinforced rubber, these hoses are prone to issues such as splitting at hose clamps, swelling, cracking, or even breaking, which can leave you stranded. It's important to replace them at the first sign of wear to prevent coolant loss and ensure your engine stays properly cooled.
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Bremmen Parts - Corporate Logo
T#:38621425
Part#: 11537521049
Special Order: No Guaranteed ETA
New Item
Sale - Save 25% $ 16.99
$ 12.74 USD
Free Shipping on orders $49 and up
Sale - Save 25% $ 16.99
$ 12.74 USD
Free Shipping on orders $49 and up