BMW Cooling System Parts & Accessories for BMW 1 Series E82 (2008-2013)

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The cooling system is arguably the weakest point in numerous BMWs. If you drive an aging BMW or plan on taking your car to the track like we do, we recommend beefing up your cooling system before going to the track. Generally, the main components in your cooling system that are prone to failure include the following: expansion tank, factory hoses, water pump, thermostat, fan (especially if your vehicle comes factory with a clutch fan), and radiator. Factory BMW expansion tanks are plastic and prone to either breaking off at connection points or combusting. As factory rubber hoses age they either crack or break over time - we offer silicone cooling hose upgrades for most applications to avoid future failures. If you have an older vehicle, your water pump likely comes from the factory with a plastic impeller - we offer upgraded water pumps with metal impellers that are far more reliable. Newer model BMWs utilize electric water pumps - BMW spent millions of dollars engineering these water pumps, but they fail so often that we recommend replacing at 60,000 mile service intervals to avoid being stranded on the side of the road. In terms of thermostats, we offer various upgraded thermostats for racing applications. If your BMW utilizes a clutch fan from the factory, we have several options available in terms of universal electric fans - we recommend replacing these to avoid sending brittle plastic fan blades through your hood. For radiators, we recommend swapping out your radiator for one that does not use plastic connection points like your factory radiator.

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Turner Motorsport - Corporate Logo
T#:12806793
Part#: 008378LA02
Ships on Nov 18, 2026
Sale - Save 20% $ 479.99

This product was last offered at the strikethrough price on
06-14-2026

$ 383.99 USD
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$ 479.99

This product was last offered at the strikethrough price on
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$ 383.99 USD
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Our Turner Motorsport's full aluminum expansion tank was designed and engineered in house to help with the weak point in your N52/N54 cooling system. The coolant expansion tank goes through heat cycles over and over again from regular driving, it is important that your expansion tank is doing its job to retain coolant to keep your engine operating temperatures down and keep your engine bay clean. Not only is this a major upgrade but also a great maintenance item to replace. Our expansion tank was designed to fit the OEM hoses for an easy install and comes with all the upgraded items you will need for a clean install

If your BMW needs a new expansion tank, make sure this is the last expansion tank you ever need to buy. Our coolant expansion tank has a full aluminum construction and wrinkle black powder coat for durability. Expansion tank kit comes with all the accessories you need to replace your expansion tank once, and never have to worry about it again.

Product Features:

Maintains stock coolant capacity and expansion volume
Designed to maintain OE coolant elevation, preventing air pockets
Baffled tank ensures that air pockets cannot be introduced during aggressive driving and provides accurate coolant level reading
Carefully designed bleed passage prevents the introduction of air as the engine cools
Turner engraved internal fill level
TIG welded 5052 aluminum construction
All bungs are machined to fit factory hose ends
Kit contents:

Turner Aluminum Expansion Tank
Coolant level sensor
Expansion tank cap
Heavy duty bleeder screw
Flared coolant pressure release line
Hardware for installation

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Silicone Expansion Tank Relocation Heater Hose
10X Entries Into Our F80 M3 Sweepstakes
Turner Motorsport - Corporate Logo
T#:21735881
Part#: 053082LA01
In Stock
Sale - Save 25% $ 75.99

This product was last offered at the strikethrough price on
06-14-2026

$ 56.99 USD
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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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Upgraded or replacement silicone heater hose for our N54 expansion tank relocation kits.

60" silicone performance coolant hose featuring a molded 90-degree bend for installs with space constraints.

Features and benefits:

Constructed of 4-Ply reinforced silicone for improved durability over the failure-prone rubber hoses.
Reduced thermal conductivity
Improved resistance to ozone and UV degradation for improved performance and durability.
Turner branded

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Turner Expansion Tank Wire Harness - E9X/ E8X N54
10X Entries Into Our F80 M3 Sweepstakes
Turner Motorsport - Corporate Logo
T#:568366
Part#: 021942TMS05
In Stock
Sale - Save 25% $ 26.99

This product was last offered at the strikethrough price on
06-14-2026

$ 20.24 USD
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$ 26.99

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The E9X/ E8X N54 Expansion Tank Wire harness is perfect for those running a relocated coolant reservoir tank. This harness plugs right into the factory connector allowing you to extend the position of the sensor without the need to splice any wires.
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OEM Style Hose Clamps
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Turner Motorsport - Corporate Logo
T#:338927
Part#: HOSE-CLAMPS
In Stock
Sale - Save 3% $ 3.99

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

Starting at $ 3.87 USD
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$ 3.99

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Starting at $ 3.87 USD
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Hose clamps for radiator hoses, coolant hoses, vacuum hoses, or intake hoses. These hose clamps are the same style as your OEM hoses with a smooth inside band to prevent cutting into the hose material.
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Precision Raceworks - Corporate Logo
T#:38094360
Part#: 601-0003
In Stock
$ 24.99 USD
Free Shipping on orders $49 and up
The Black Market Parts (by Precision Raceworks) BMW Billet Coolant Flange was designed as a replacement for the factory plastic flange that is found in the hose that connects the thermostat to the cylinder head. The plastic flange commonly cracks, which leads to coolant loss and engine overheating. Replace your coolant flange before disaster occurs and leaves you stuck on the side of the road.
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ECS Tuning Aluminum Coolant Bleeder Screw
10X Entries Into Our F80 M3 Sweepstakes
ECS - Corporate Logo
T#:363070
Part#: 003530ECS01A
Ships on Nov 12, 2026
Sale - Save 25% $ 35.99

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

$ 26.99 USD
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$ 35.99

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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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ECS - Corporate Logo
T#:556105
Part#: 024797ECS01
In Stock
Sale - Save 25% $ 76.99

This product was last offered at the strikethrough price on
06-14-2026

$ 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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Precision Raceworks - Corporate Logo
T#:38229115
Part#: 622-0079
In Stock
$ 69.99 USD
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The E9X / E8X Coolant Tank & Power Steering Bracket w/ Harness is all of the hardware necessary to relocate your power steering pump and install a factory coolant tank on the driver's side of your vehicle. These are the same high-quality components that are included with our E9X/ E8X relocated inlet kits.
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ECS - Corporate Logo
T#:640062
Part#: 008286LA01
In Stock
Sale - Save 25% $ 106.99

This product was last offered at the strikethrough price on
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$ 80.24 USD
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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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Upper Radiator Hose - E9x E82 E89 With N52 Engine
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:7460
Part#: 17127531579
In Stock
$ 44.99

This product was last offered at the strikethrough price on
10-22-2026

$ 32.79 USD
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$ 32.79 USD
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This is the upper radiator hose that goes from the engine to the top of the radiator with either N51 or N52 enigne.

This item fits the following BMWs:
2008+ E82 BMW 128i
2006-2011 E90 BMW 325i 325xi 328i 328xi 328i xDrive 330i 330xi - Sedan
2006-2012 E91 BMW 325xi 328i 328xi 328i xDrive - Wagon
2007-2013 E92 BMW 328i 328xi 328i xDrive - Coupe
2007-2013 E93 BMW 328i Convertible
2009+ Z4 BMW Z4 sDrive30i
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Rein Upper Radiator Hose - E82, E88, E90, E92, E93, Z4
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:340690
Part#: 17127540127
In Stock
$ 40.99 USD
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The hose that comes off of the top outlet on the radiator
Radiator Hose for N52 / N54 - Lower
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:388683
Part#: 17127564478
In Stock
$ 33.99 USD
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$ 33.99 USD
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Replace split, hard, or bulging hoses


Rein Water Pipe - E82, E88, E90, E91, E92, E93
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:403979
Part#: 11537545890
In Stock
$ 20.99 USD
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Connects from the top of the thermostat housing to the engine block
BMW E8X E9X Billet Aluminum Radiator Drain Plug
10X Entries Into Our F80 M3 Sweepstakes
ECS - Corporate Logo
T#:367075
Part#: 013197ECS01A
In Stock
Sale - Save 25% $ 47.99

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

$ 35.99 USD
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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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ECS - Corporate Logo
T#:19825274
Part#: 008640LA02
In Stock
Sale - Save 20% $ 189.99

This product was last offered at the strikethrough price on
06-14-2026

$ 151.99 USD
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Sale - Save 20%
$ 189.99

This product was last offered at the strikethrough price on
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$ 151.99 USD
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Upper and lower radiator silicone coolant hose kit to upgrade from your stock rubber hoses. Includes stainless steel hose clamps.

Upgrade all of those common, aging, dry-rotted rubber hoses under the hood of your vehicle with ECS durable, Silicone Radiator Coolant Hose Set. These perform and look great within any engine bay, they are made to last longer than standard rubber hoses and are perfectly molded to the OE hose specifications for a simple installation on most vehicles.

Made from heavy duty, reinforced silicone, this silicone coolant hose set can handle higher temperatures and greater pressure than the stock, squishy rubber hoses. Designed to resist oil, fuel and electrochemical degradation and tested up to continuous 250° Fahrenheit operating temperature and over 45psi, you can expect to achieve greater reliability, less turbulence and improved flow with our smooth silicone hoses.

Kit contents:

Upper Radiator hose
Lower Radiator hose
4 factory flange connections
German-style stainless steel hose clamps
With the smoother internal passageways, consistent hose internal diameters, and smoother bends will result in improved flow for greater cooling system performance with added durability.

The perfect way to take the worry out of your coolant hoses and keep your engine from potentially overheating.

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Race German - Corporate Logo
T#:6827888
Part#: RGCTSA1/8NPT
In Stock
$ 35.99

This product was last offered at the strikethrough price on
10-07-2026

$ 31.99 USD
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$ 35.99

This product was last offered at the strikethrough price on
10-07-2026

$ 31.99 USD
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Race German has devoted themselves to providing quality products for late model BMWs that cover both street and track applications. Race German has now grown their catalog to a wide variety of models and products geared towards keeping your car looking and running nice. For those looking to install an aftermarket coolant temp gauge, Race German has the perfect accessory for you! This adapter is machined out of aluminum and splices into your upper radiator hose. Perfect for use with Race German's E30 temperature gauge but has compatibility with a wire variety of other cars as well! Features: Tapped for 1/8NPT sized sensor 38mm diameter outlets which fit most BMW hoses Includes 2x hose clamps **Does not include temp sensor
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Race German - Corporate Logo
T#:6827887
Part#: RGCTSAM12
In Stock
$ 35.99 USD
Free Shipping on orders $49 and up
Race German has devoted themselves to providing quality products for late model BMWs that cover both street and track applications. Race German has now grown their catalog to a wide variety of models and products geared towards keeping your car looking and running nice. For those looking to install an aftermarket coolant temp gauge, Race German has the perfect accessory for you! This adapter is machined out of aluminum and splices into your upper radiator hose. Perfect for use with Race German's E30 temperature gauge but has compatibility with a wire variety of other cars as well! Features: Tapped for M12x1.5 sized sensor 38mm diameter outlets which fit most BMW hoses Includes 2x hose clamps **Does not include temp sensor
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OEM Rein Expansion Tank Vent Hose - E82/8 E9X N52
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:402113
Part#: 17127618510
In Stock
$ 32.99

This product was last offered at the strikethrough price on
10-13-2026

$ 32.29 USD
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$ 32.29 USD
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Acts as a vent hose between the upper radiator hose and the expansion tank. Runs the length of the top of the radiator.

Rein - Corporate Logo
T#:583051
Part#: 17127531581
In Stock
$ 27.99 USD
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$ 27.99 USD
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Radiator to Thermostat Housing
N54 3.0L ECS Silicone Coolant Outlet Hose
10X Entries Into Our F80 M3 Sweepstakes
ECS - Corporate Logo
T#:555020
Part#: 025216ECS01
In Stock
Sale - Save 25% $ 80.99

This product was last offered at the strikethrough price on
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$ 60.74 USD
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$ 80.99

This product was last offered at the strikethrough price on
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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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CRP Radiator Vent Hose - E82, E84, E88, E90, E92, E93
For vehicles with automatic or Double Clutch Transmission
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:1195859
Part#: 17127565094
In Stock
$ 34.99

This product was last offered at the strikethrough price on
10-22-2026

$ 29.19 USD
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$ 29.19 USD
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Located on the top of the radiator

Vargas Turbo Technologies - Corporate Logo
T#:22987117
Part#: VTT-N54-COOLANTR
In Stock
$ 464.99 USD
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VTT is proud to announce our N54 Billet/Silicone coolant hose upgrade kit! The factory plastic coolant connectors are prone to breaking over time, and the hoses are just your standard run of the mill coolant hose. We wanted to provide an upgrade to both areas. What we came up with is Billet 6061-T6 connectors anodized black for corrosion resistance, and 6 ply silicone molded silicone hoses in the factory shapes. Full hose kit includes: Upper Radiator hose Lower Radiator hose Cylinder head outlet hose (Mickey Mouse hose, this hose is notorious for breaking when removed) Upper vent hose (this hose is also notorious for breaking as stock the center is plastic that crumbles when moved) Water pump inlet hose (Horse Shoe hose)
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Rein Radiator Return Hose - E82, E88, E90, E91, E92, E93
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:20530
Part#: 64216951946
In Stock
$ 21.99 USD
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HOSE F RADIATOR AND ENGINE R 64216951946 Manufactured by CRP

Rein - Corporate Logo
T#:17738369
Part#: 17127540020
In Stock at Vendor
$ 40.83

This product was last offered at the strikethrough price on
10-22-2026

$ 39.79 USD
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$ 39.79 USD
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Coolant hoses can become brittle over time, leading to cracks and leaks. Replace your coolant hose with this OEM Rein hose to prevent leaks and overheating.


Rein Lower Cooling Hose - E82, E88, E90, E91, E92, E93, Z4
For vehicles with automatic transmission only
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:402117
Part#: 17117524710
In Stock
$ 33.99 USD
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$ 33.99 USD
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Connects to lower coolant pipe
VTT Complete Blue N54 Coolant Hose Kit
2X Entries Into Our F80 M3 Sweepstakes
Vargas Turbo Technologies - Corporate Logo
T#:17771579
Part#: VTT-N54-COOLANTB
Ships in 6 Business Days
$ 464.99 USD
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Upgrade your BMW N54's cooling system with VTT's Billet/Silicone coolant hose upgrade kit. Designed to address common issues with factory plastic connectors and standard coolant hoses, this kit offers premium enhancements for durability and performance. Crafted with Billet 6061-T6 connectors for corrosion resistance and 6-ply molded silicone hoses in factory shapes, it ensures reliability and longevity for your BMW's cooling system.
  • Upgraded Billet 6061-T6 connectors for enhanced durability
  • Corrosion-resistant black anodized finish
  • 6-ply molded silicone hoses for superior performance
  • Factory-shaped design for easy installation
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70-78mm - T-Bolt Hose Clamp - Priced each
10X Entries Into Our F80 M3 Sweepstakes
ECS - Corporate Logo
T#:380416
Part#: 003402ECS07A-03
In Stock
Sale - Save 25% $ 31.99

This product was last offered at the strikethrough price on
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$ 23.99 USD
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$ 23.99 USD
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Ensure a tight and leak-free seal in your BMW's cooling, vacuum, or intake systems by installing a new adjustable hose clamp. Over time, clamps can deform or lose their tightness due to aging or frequent removal, potentially causing leaks in your coolant or vacuum hoses. Avoid the risk of leaks by replacing old clamps with new hardware, offering peace of mind against coolant and vacuum system issues.

Key benefits of the adjustable hose clamp include:

  • Maintaining a secure and leak-free seal in your BMW's systems.
  • Preventing coolant or vacuum leaks that can affect performance.
  • Adjustable size from 70mm to 78mm for versatile applications.

Upgrade your hose clamps to ensure optimal performance and reliability in your BMW's systems.

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Rein Lower Radiator Hose - E82, E88, E90, E92, E93
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:340665
Part#: 17127564480
Ships in 1 Business Day
$ 50.99 USD
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The hose that attaches to the bottom of the radiator

OEM Rein Coolant Hose - BMW E82/88 E9X N54 N55 3.0L
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:592007
Part#: 17127548203
In Stock
$ 27.99 USD
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Low temperature cooling module hose.
Precision Raceworks - Corporate Logo
T#:38161689
Part#: 201-0393-BLU
In Stock
$ 109.99 USD
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BMW Blue Engine Coolant Reservoir Cap is the perfect upgrade for BMW owners looking to enhance both the performance and appearance of their engine bay. Constructed from high-quality billet aluminum, this cap replaces the flimsy plastic factory cap, offering improved durability and a sleek, high-performance aesthetic.

Designed with precision, this coolant reservoir cap incorporates the OEM pressure relief function to maintain proper cooling system operation. Unlike inferior stick-on covers that may loosen over time, this cap is a complete replacement, ensuring a secure, leak-free fit. The blue anodized finish provides superior corrosion resistance, making it a reliable upgrade for daily drivers and track enthusiasts alike.

  • OEM pressure relief function – Ensures proper cooling system performance and safety
  • Billet aluminum construction – Provides enhanced durability and strength over factory plastic caps
  • Direct-fit replacement – Fully replaces the stock cap for a precise, secure fit
  • Blue anodized finish – Resists corrosion, heat, and wear for long-lasting performance
  • Motorsport-inspired design – Adds a sleek, professional look to the engine bay
  • Built for longevity – Engineered to withstand extreme temperatures and coolant exposure

Upgrade your BMW’s cooling system with the BMW Blue Engine Coolant Reservoir Cap, designed for superior reliability and style.

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DO88 - Corporate Logo
T#:13793026
Part#: WC370
In Stock at Vendor
$ 642.99 USD
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The team at DO88 has vigorously tested this radiator to deliver peak performance with the peace of mind of quality for your N54/N55 engine. They guarantee reliability and endurance in all situations to let your car breathe better than before! Boasting a 29% increase in core volume and a 3% larger frontal surface area, this upgrade is a no-brainer for petrol heads like us. Keeping core temperatures low eliminates the risk of heat soak leading to overheating giving you max performance at any given moment. no compromise has been made at DO88 leaving you with one of the best radiator options on the market!
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DO88 - Corporate Logo
T#:14155764
Part#: KIT222S
In Stock
$ 687.99 USD
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These hoses are entirely manufactured in high quality silicone for best finish and durability. With three to five layers of armory, depending of the inner diameter, the hoses withstand high pressure rates and high temperatures for a long time. The original hoses are manufactured in rubber that not seldom cracks from age. This is the durable solution for you that in addition improves the looks!
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Rein Water Hose With Gasket - Water Pump To Engine Inlet
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:17804808
Part#: 11537584630R
Ships in 1 Business Day
$ 40.99 USD
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Rein OE quality water hoses are designed to be direct replacements for OE hoses and assemblies. This includes the hose and clamps.

Coolant Hose
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Rein - Corporate Logo
T#:594291
Part#: 11537584549
In Stock
$ 32.99 USD
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Connects to the thermostat. Replacement from Rein.
Rein Coolant Outlet Hose - E82, E88, E90, E92, E93, Z4
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:388670
Part#: 11537541992
In Stock
$ 29.99

This product was last offered at the strikethrough price on
08-10-2026

$ 26.99 USD
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$ 29.99

This product was last offered at the strikethrough price on
08-10-2026

$ 26.99 USD
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Attached to the outlet on the thermostat housing
Rein - Corporate Logo
T#:53750144
Part#: CHU0629
In Stock
New Item
$ 56.99 USD
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Upgraded Coolant Hose from Rein Featuring Metal Flanges to Reduce Leaks


Rein Coolant Inlet Hose Section - E82, E83, E88, E90, E91, E92, E93 ...
For vehicles with manual transmission
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:388668
Part#: 11537535829
In Stock at Vendor
$ 20.99 USD
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$ 20.99 USD
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Replaces the rubber section of the water pump inlet pipe - includes two clamps
Precision Raceworks - Corporate Logo
T#:38161688
Part#: 201-0393-BLK
Ships in 9 Business Days
$ 109.99 USD
Free Shipping on orders $49 and up

BMW Black Engine Coolant Reservoir Cap is a premium upgrade designed to enhance both the functionality and aesthetics of your BMW’s engine bay. Unlike flimsy plastic OEM caps, this high-performance cap is CNC-machined from durable billet aluminum, providing long-lasting strength and a sleek, motorsport-inspired look.

Built with precision, this cap retains the essential OEM pressure release function, ensuring proper cooling system operation without compromise. Unlike inferior adhesive covers that may detach over time, this cap fully replaces the factory component, delivering a secure and reliable fit. With a corrosion-resistant black anodized finish, it withstands extreme temperatures and harsh conditions while elevating your BMW’s under-hood appearance.

  • OEM pressure regulation – Maintains factory-designed pressure release for optimal cooling performance
  • CNC-machined billet aluminum – Provides exceptional durability and long-term reliability
  • Direct replacement – Fully replaces the stock cap, ensuring a perfect fit without modifications
  • Corrosion-resistant anodized finish – Prevents wear and adds a stealthy, high-performance look
  • Heat and fluid-resistant design – Built to withstand extreme temperatures and coolant exposure
  • Enhanced engine bay styling – Offers a sleek, motorsport-inspired upgrade

Upgrade your BMW’s cooling system with the BMW Black Engine Coolant Reservoir Cap, designed for superior performance and long-lasting durability.

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Precision Raceworks - Corporate Logo
T#:38094357
Part#: 601-0055
Ships in 5 Business Days
$ 39.99 USD
Free Shipping on orders $49 and up
This driver-side coolant tank mounting bracket set is ideal for those with relocated inlets or single turbo kits. It enables you to reposition your factory coolant tank to the driver's side of the engine bay. Best of all, it’s fully compatible with all known charge pipes.
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Rein - Corporate Logo
T#:348982
Part#: 11537521049
In Stock
$ 17.99 USD
Free Shipping on orders $49 and up
Connects from the water pump to the thermostat

40-60mm 3/8"/9mm Band Hose Clamp
10X Entries Into Our F80 M3 Sweepstakes
ECS - Corporate Logo
T#:341280
Part#: 003402ECS06A-08
In Stock
Sale - Save 25% $ 3.99

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

$ 2.99 USD
Free Shipping on orders $49 and up
Sale - Save 25%
$ 3.99

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

$ 2.99 USD
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ECS Tuning 304 Stainless Steel Hose Clamps

Revolutionize your car maintenance with ECS Tuning's premium 304 stainless steel hose clamps. Eliminate dealership delays and inflated prices! These German-style clamps utilize T-bolts for hassle-free diameter adjustment. With various band widths available, these durable clamps ensure reliability without the hefty cost. Experience dealership-quality products at affordable rates, exclusively at ECS Tuning.

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Rein - Corporate Logo
T#:44835448
Part#: CHU0484
In Stock
$ 46.99

This product was last offered at the strikethrough price on
08-13-2026

$ 46.00 USD
Free Shipping on orders $49 and up
$ 46.00 USD
Free Shipping on orders $49 and up
Attaches the outlet of the thermostat housing to the cylinder head This hose is notorious for failure at the flange. The plastic flange becomes brittle over time due to numerous heat cycles and often cracks, leading to a major coolant leak. This upgraded option from Rein features an aluminum flange that will not crack or split, ensuring years of operation without the worries of failure.
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Aluminum Screws for N52 N54 Water Pump
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Rein - Corporate Logo
T#:2253
Part#: 11510392553
In Stock
$ 7.99

This product was last offered at the strikethrough price on
10-05-2026

$ 7.19 USD
Free Shipping on orders $49 and up
$ 7.19 USD
Free Shipping on orders $49 and up
These aluminum water pump screws are single use and must be replaced each time they are removed. These are used on all 325i, 328i, and 330i with the BMW N51 N52 and N53 engines. They were also used on some early N54 engines that have rubber mounts on the water pump housing. Do not use these bolts if your N54 water pump has been replaced with a housing that does not have the rubber mounts.

In German, Rein means Pure. In the automotive industry the Rein name has quickly come to represent quality. With fitments for some of the world’s finest automobiles including BMW and Mini and guaranteed OE quality, Rein is a name you can trust.

This item fits the following BMWs:
2008+ E82 BMW 128i 135i
2007+ E9X BMW 325i 325xi 328i 328xi 330i 335i 335xi
2006+ E60 BMW 525i 525xi 528i 528xi 530i 530xi 535i 535xi
2006+ X3 BMW X3 3.0i X3 3.0si
2006+ Z4 BMW Z4 3.0i Z4 3.0si
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Precision Raceworks - Corporate Logo
T#:1332002
Part#: 201-0050
In Stock
$ 19.99 USD
Free Shipping on orders $49 and up
The E9X/ E8X coolant tank level sensor extension harness is the same great product that comes standard with Precision Raceworks' E9X/ E8X relocated inlet kits. The coolant tank level sensor extension harness is perfect for those running a relocated coolant reservoir tank or 335D coolant reservoir. This harness plugs right into the factory connector allowing you to extend the position of the sensor without the need to splice any wires.
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90-110mm 3/8"/9mm Band Hose Clamp
10X Entries Into Our F80 M3 Sweepstakes
ECS - Corporate Logo
T#:341281
Part#: 003402ECS06A-13
In Stock
Sale - Save 40% $ 6.99

This product was last offered at the strikethrough price on
05-02-2026

$ 4.19 USD
Free Shipping on orders $49 and up
Sale - Save 40%
$ 6.99

This product was last offered at the strikethrough price on
05-02-2026

$ 4.19 USD
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ECS Tuning 304 Stainless Steel Hose Clamps

Once again, ECS Tuning has found a way to make life easier for working on your car. Need new hose clamps but don't want to wait to order it from the dealership or pay more than you should for a hose clamp? That's where we come in! These are full 304 stainless steel hose clamps with various band widths for your convenience. They are German style using T-bolts to adjust in size to your required diameter. Never pay dealer pricing again, but still get the quality you love here at ECS Tuning.

  • Made from high-quality 304 stainless steel for durability
  • German-style design with T-bolts allows for easy size adjustment
  • Various band widths for versatile use
  • Avoid dealership pricing without compromising on quality
  • Perfect for BMW enthusiasts seeking affordable yet reliable hose clamps
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77-85mm - 3/4" Band Hose Clamp
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ECS - Corporate Logo
T#:377877
Part#: 003402ECS07A-05
In Stock
Sale - Save 25% $ 25.99

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

$ 19.49 USD
Free Shipping on orders $49 and up
Sale - Save 25%
$ 25.99

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

$ 19.49 USD
Free Shipping on orders $49 and up

Upgrade your BMW's hose clamps with the 77-85mm - 3/4" Band Hose Clamp from Turner Motorsport. These full 304 stainless steel clamps offer convenience and quality without the dealership price tag. German-style T-bolts allow for easy adjustment to your required diameter, ensuring a secure fit every time.

  • Made of durable 304 stainless steel for long-lasting performance
  • German-style T-bolt design for easy size adjustment
  • Convenient band widths for versatile applications
  • Quality alternative to dealership pricing
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Band Hose Clamp | 12-20mm 3/8"/9mm
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ECS - Corporate Logo
T#:304266
Part#: 003402ECS06A-03
In Stock
Sale - Save 25% $ 4.99

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

$ 3.74 USD
Free Shipping on orders $49 and up
Sale - Save 25%
$ 4.99

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

$ 3.74 USD
Free Shipping on orders $49 and up
Secure hoses in your BMW effortlessly with the ECS 3/8" / 9mm Band Hose Clamp (12-20mm). Specifically designed for BMW models, this clamp ensures a snug fit and reliable hold for hoses measuring between 12mm to 20mm. Crafted with durable materials, these clamps provide exceptional resistance against leaks and are ideal for various automotive applications. Upgrade your BMW's hose security with these reliable ECS hose clamps.
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OEM Rein Coolant Pipe Inlet Hose Section - N52
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Rein - Corporate Logo
T#:388662
Part#: 11537516414
In Stock
$ 19.99 USD
Free Shipping on orders $49 and up

Cooling hoses tend to crack over time after going through countless heating and cooling cycles. This can lead to leaks or air bubbles in the cooling system that lead too coolant loos, hurts cooling potential, or could possibly cause damage from excess heat.

Fits the following BMWs:
Submodels with N52 3.0L engine.

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60-80mm 1/2"/12mm Band Hose Clamp
10X Entries Into Our F80 M3 Sweepstakes
ECS - Corporate Logo
T#:377836
Part#: 003402ECS05A-10
In Stock
Sale - Save 25% $ 6.99

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

$ 5.24 USD
Free Shipping on orders $49 and up
Sale - Save 25%
$ 6.99

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

$ 5.24 USD
Free Shipping on orders $49 and up

ECS Tuning Stainless Steel Hose Clamps for BMW

Upgrade your BMW's hose clamps with ECS Tuning Stainless Steel Hose Clamps, designed for convenience and durability. Say goodbye to long waits and overpriced dealership clamps. With various band widths available, these stainless steel clamps ensure a secure fit for your vehicle's hoses.

Benefits:

  • Convenient replacement for worn-out hose clamps
  • Made of durable stainless steel for long-lasting performance
  • Available in various band widths for versatile use
  • Affordable alternative to dealership pricing
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Coolant Inlet Hose Section
For vehicles with automatic transmission only
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:388669
Part#: 11537558523
In Stock
$ 17.99

This product was last offered at the strikethrough price on
10-22-2026

$ 14.19 USD
Free Shipping on orders $49 and up
$ 14.19 USD
Free Shipping on orders $49 and up