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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Precision Raceworks - Corporate Logo
T#:38094360
Part#: 601-0003
In Stock
$ 24.99 USD
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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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Mosselman Turbosystems - Corporate Logo
T#:27338727
Part#: 030210011
In Stock
$ 26.99 USD
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This hardware can be used in conjunction with your Mosselman MSL Oil Thermostat for added flair and durability.

Specifications:

Grade 5 Titanium Hex-Race head M8x25mm

Mosselman Turbosystems - Corporate Logo
T#:26404801
Part#: 030210012
In Stock
$ 27.99 USD
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Prevent costly oil leaks when installing a new MSL oil cooler from Mosselman. These high-quality rubber gaskets ensure your oil thermostat is sealed properly, guaranteeing peak performance and long service life.

Kit includes:

2x Oil Pressure Hose O-Ring 1x Oil Filter Housing Gasket

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CSF OE Style Radiator - E82/88 E9X Z4
2X Entries Into Our F80 M3 Sweepstakes
CSF - Corporate Logo
T#:638781
Part#: 3718
In Stock
$ 138.99 USD
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$ 138.99 USD
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CSF radiators are designed and built to High-Performance Standards & sold worldwide for over 50 years - over 30 Million Units Sold! CSF's radiators are carefully engineered and Wind Tunnel tested for Cooling Performance Validation. CSF has over 10,000 different models of radiators that they manufacture and supply for all the leading brands of vehicles on the road.
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CSF - Corporate Logo
T#:568720
Part#: 3717
In Stock
$ 107.99 USD
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$ 107.99 USD
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This is a factory original style radiator from CSF and will fit perfectly into the stock location. Cooling will be identical to what your car came with originally. A great replacement with all the proper connections and in all of the proper locations.
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Mishimoto - Corporate Logo
T#:363510
Part#: MMFANCNTLUPROBE
In Stock
9% off MSRP $ 98.00

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

$ 88.99 USD
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9% off MSRP
$ 98.00

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

$ 88.99 USD
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Take Control of Your Engine Cooling Fan with Mishimoto's Manual Fan Controller Kit

Ensure your engine runs at the perfect temperature by using this versatile manual fan controller system, compatible with all 12v fan-equipped vehicles. With adjustable activation temperature settings ranging from 150°F to 240°F, you have precise control over your engine's cooling fan. The kit includes a probe-style temperature sensor and a generous 7 feet of wire, making it suitable for installation in vehicles of various sizes.

For added convenience, the system is equipped with a built-in A/C override feature, ensuring your cooling system works seamlessly. It's designed to work with one or two electric fans drawing a combined 25 amps or less. The package includes all the essential wiring connectors and hardware needed for a trouble-free installation.

With a lifetime warranty from Mishimoto, you can trust in the quality and durability of this manual fan controller kit.

WARNING! Prop 65 may apply to this product. Proposition 65 (Safe Drinking Water and Toxic Enforcement Act of 1968) is a California law that applies to all companies selling products in California.

Prop 65 requires any listed chemical present above very low levels that are known to cause cancer, birth defects, or other reproductive harm. For more information about California Prop 65 warnings, visit www.P65Warnings.ca.gov.

WARNING! Prog 65 may apply to this product.Proposition 65 (Safe Drinking Water and Toxic Enforcement Act of 1968) is a California law that applies to call companies selling products in California. Prop 65 requires any listed chemical present above very low levels that are known to cause cancer, birth defects, or other reproductive harm.For more information about California Prop 65 warning see: www.P65Warnings.ca.gov.
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Bav Auto Water Pump - BMW N54 N55
10X Entries Into Our F80 M3 Sweepstakes
Bavarian Autosport - Corporate Logo
T#:637476
Part#: 11517632426
In Stock
Sale - Save 17% $ 397.99

This product was last offered at the strikethrough price on
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$ 330.99 USD
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Sale - Save 17%
$ 397.99

This product was last offered at the strikethrough price on
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$ 330.99 USD
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Water pumps are a critical component of your cooling system. A failed water pump will stop the flow of coolant in your vehicle, leading to overheating and eventual engine damage. Replace your faulty or aging water pump with a high-quality Bav Auto unit. Replacement for BMW part # 11517632426 and 11517563659. From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty.
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N54 & E8x/E9x N55 Mosselman Billet Oil Thermostat
For Gasket/Install kit see T#4799665
Mosselman Turbosystems - Corporate Logo
T#:4621131
Part#: OTN54.T85
In Stock
$ 379.99 USD
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$ 379.99 USD
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The N54 engine is no stranger to oil cooling problems, that’s why we recommend installing the MSL Oil Thermostat. The standard oil thermostat will reach around 120 degrees Celsius with a normal driving style. The MSL Oil Thermostat will open at a lower temperature than the standard oil thermostat (at 85 degrees Celsius) and will keep the temperature stable between 95 and 105 degrees Celsius. Installing the MSL thermostat ensures a cooler oil temperature which will result in more stable performance, but above all this improves the reliability of the engine. It is recommended to install the thermostat, especially for cars that are tuned.
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CSF High Performance 2 Row Core Aluminum Radiator - E8x 135i E9x 335i...
For vehicles with an automatic or DCT transmission only
2X Entries Into Our F80 M3 Sweepstakes
CSF - Corporate Logo
T#:384653
Part#: 7046
In Stock
9% off MSRP $ 699.00

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

$ 639.00 USD
Free Shipping
9% off MSRP
$ 699.00

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

$ 639.00 USD
Free Shipping

CSF is one of the premier cooling product specialists available on the market thanks to designs such as their High Performance Aluminum Radiators. Using a single pass designed core, this radiator gives you all the cooling you could ever need. Paired with these radiators are CNC machined brackets and corrosion resistant hardware that allow final installation to have a same as stock fitment! This enables you to have much higher cooling without having to cut away any metal or delete any important components just for the sake of lower coolant temperatures. 

Features:

  • Two-row, triple-pass design radiator core
  • CNC machined mounting brackets
  • All needed hardware included
  • Hand polished aluminum with a mirror-like finish
  • Stock fitment prevents modification to engine bay

Fits the following BMWs:
2007-2011 E82/E88 BMW 135i, 1 M Coupe with automatic transmission
2006-2012 E9X BMW 335i/is with automatic transmission
2009+ E89 BMW Z4 30i 35i/is

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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
Sale - Save 5% $ 44.99

This product was last offered at the strikethrough price on
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$ 42.74 USD
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$ 44.99

This product was last offered at the strikethrough price on
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$ 42.74 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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Precision Raceworks - Corporate Logo
T#:38229115
Part#: 622-0079
In Stock
$ 69.99 USD
Free Shipping on orders $49 and up
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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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
Sale - Save 5% $ 40.99

This product was last offered at the strikethrough price on
08-30-2026

$ 38.94 USD
Free Shipping on orders $49 and up
Sale - Save 5%
$ 40.99

This product was last offered at the strikethrough price on
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$ 38.94 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
Sale - Save 5% $ 33.99

This product was last offered at the strikethrough price on
08-30-2026

$ 32.29 USD
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Sale - Save 5%
$ 33.99

This product was last offered at the strikethrough price on
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$ 32.29 USD
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Replace split, hard, or bulging hoses
CSF High Performance Aluminum Radiator - E8x 135i, 1M coupe, E9x 335i...
For vehicles with manual transmission only
2X Entries Into Our F80 M3 Sweepstakes
CSF - Corporate Logo
T#:384652
Part#: 7045
In Stock
$ 589.00 USD
Free Shipping
$ 589.00 USD
Free Shipping

CSF is one of the premier cooling product specialists available on the market thanks to designs such as their High Performance Aluminum Radiators. Using a single pass designed core, this radiator gives you all the cooling you could ever need. Paired with these radiators are CNC machined brackets and corrosion resistant hardware that allow final installation to have a same as stock fitment! This enables you to have much higher cooling without having to cut away any metal or delete any important components just for the sake of lower coolant temperatures. 

Features:

  • Two-row, triple-pass design radiator core
  • CNC machined mounting brackets
  • All needed hardware included
  • Hand polished aluminum with a mirror-like finish
  • Stock fitment prevents modification to engine bay

Fits the following BMWs:
2007-2011 E82/E88 BMW 135i, 1 M Coupe with manual transmission
2006-2012 BMW 335i/is with manual transmission

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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
Sale - Save 5% $ 20.99

This product was last offered at the strikethrough price on
08-30-2026

$ 19.94 USD
Free Shipping on orders $49 and up
Sale - Save 5%
$ 20.99

This product was last offered at the strikethrough price on
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$ 19.94 USD
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Connects from the top of the thermostat housing to the engine block

Water Pump - N52 3.0L
10X Entries Into Our F80 M3 Sweepstakes
Bavarian Autosport - Corporate Logo
T#:599823
Part#: 11517586925
In Stock
Sale - Save 10% $ 299.99

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

$ 269.99 USD
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Sale - Save 10%
$ 299.99

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

$ 269.99 USD
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Don't take your car's cooling system for granted. A waterpump failure can cost you an engine, which is why preventatively replacing your BMWs waterpump and refreshing the cooling system every 60,000 miles. The water pump is a weak point is the cooling system. Replacing your waterpump will go a long way for keeping your car on the road and operating properly. This water pump fits many 2006 and newer BMW 6 cylinder engines, specifically all the BMWs with the N51, N52, N53 engines. You will also need to purchase replacement aluminum screws Part #11510392553 From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty. This water pump fits the following BMWs: 2008-20xx E82 128i 2006-2006 E90 325i sedan, 330i sedan, 325xi sedan, 330xi sedan 2007-2012 E90 328i sedan, 328xi sedan, 328i xDrive sedan 2007-2012 E92 328i coupe, 328xi coupe, 328i xDrive coupe 2007-2012 E93 328i Convertible 2006-2006 E60 525i, 525xi, 530i, 530xi 2007-2010 E60 528i, 528xi, 528i xDrive 2007-2010 E83 X3 3.0i X3 3.0si 2007-20xx E70 X5 3.0si X5 xDrive30i 2006-2008 E85 Z4 3.0si 2009-20xx E89 Z4 sDrive30i
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N54 Billet 90 Degree Coolant Tank Fitting
2X Entries Into Our F80 M3 Sweepstakes
Vargas Turbo Technologies - Corporate Logo
T#:12184492
Part#: VTT-COOLANT-90-1
In Stock
$ 37.99 USD
Free Shipping
$ 37.99 USD
Free Shipping

Enhance the flexibility of your BMW's coolant system with the Vargas Turbo Technologies 90-Degree Coolant Tank Fitting. Ideal for applications such as single turbo setups or forward-facing intake manifolds, this fitting provides extra clearance and versatile hose routing options.

Key Benefits:

  • Allows hose to run straight down, increasing clearance
  • Made of durable 6061-T6 aluminum for long-lasting performance
  • Anodized black finish for enhanced durability and corrosion resistance
  • Includes fitting and clamp for easy installation

Upgrade your BMW's coolant system with the Vargas Turbo Technologies 90-Degree Coolant Tank Fitting for improved performance and versatility.

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Mishimoto - Corporate Logo
T#:363170
Part#: MMFAN16
In Stock
$ 115.99 USD
Free Shipping
$ 115.99 USD
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CSF - Corporate Logo
T#:568721
Part#: 3716
In Stock
$ 109.99 USD
Free Shipping
$ 109.99 USD
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This is a factory original style radiator from CSF and will fit perfectly into the stock location. Cooling will be identical to what your car came with originally. A great replacement with all the proper connections and in all of the proper locations.
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Vargas Turbo Technologies - Corporate Logo
T#:7530036
Part#: COOLANTCAPBLUE
In Stock
$ 79.99 USD
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$ 79.99 USD
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VTT is proud to offer their billet replacement for the factory plastic Coolant Reservoir cap. This cap does away with the weak plastic cap while adding some pop, and color to your engine bay. This coolant cap retains ALL of the factory provisions by simply allowing you to snap the factory pressure-relief into the new Billet Cap. VTT also designed these caps to complement their N5X Billet Oil caps, N5XBillet Oil filter housing caps, and Billet Power Steering cap, so all 4 will have the same design. These caps are offered in 4 colors – Red, Black, Blue, and Clear anodized Replaces Genuine BMW Reservoir Cap # 17117639020 Note: Fitment includes 99% of all BMW with a coolant Reservoir tank from the E series forward, meaning then fit even the brand New G8X M3/4 with the S58, all B58, etc. If your BMW is an E90 or newer this cap most likely will fit
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Vargas Turbo Technologies - Corporate Logo
T#:7530034
Part#: COOLANTCAPRED
Ships in 2 Business Days
$ 79.99 USD
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$ 79.99 USD
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VTT is proud to offer their billet replacement for the factory plastic Coolant Reservoir cap. This cap does away with the weak plastic cap while adding some pop, and color to your engine bay. This coolant cap retains ALL of the factory provisions by simply allowing you to snap the factory pressure-relief into the new Billet Cap. VTT also designed these caps to complement their N5X Billet Oil caps, N5XBillet Oil filter housing caps, and Billet Power Steering cap, so all 4 will have the same design. These caps are offered in 4 colors – Red, Black, Blue, and Clear anodized Replaces Genuine BMW Reservoir Cap # 17117639020 Note: Fitment includes 99% of all BMW with a coolant Reservoir tank from the E series forward, meaning then fit even the brand New G8X M3/4 with the S58, all B58, etc. If your BMW is an E90 or newer this cap most likely will fit
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Vargas Turbo Technologies - Corporate Logo
T#:26404815
Part#: VTT-N54-COOLANT9
Ships in 5 Business Days
$ 31.99 USD
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$ 31.99 USD
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Mosselman Turbosystems - Corporate Logo
T#:27338734
Part#: OTN54.T85KT
In Stock
$ 434.99 USD
Free Shipping on orders $49 and up
The N54 engine is no stranger to oil cooling problems, that’s why we recommend installing the MSL Oil Thermostat. The standard oil thermostat will reach around 120 degrees Celsius with a normal driving style. The MSL Oil Thermostat will open at a lower temperature than the standard oil thermostat (at 85 degrees Celsius) and will keep the temperature stable between 95 and 105 degrees Celsius. Installing the MSL thermostat ensures a cooler oil temperature which will result in more stable performance, but above all this improves the reliability of the engine. It is recommended to install the thermostat, especially for cars that are tuned.
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Rein - Corporate Logo
T#:583051
Part#: 17127531581
Ships on Sep 16, 2026
Sale - Save 5% $ 27.99

This product was last offered at the strikethrough price on
08-30-2026

$ 26.59 USD
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$ 27.99

This product was last offered at the strikethrough price on
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$ 26.59 USD
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Radiator to Thermostat Housing


Mishimoto - Corporate Logo
T#:637390
Part#: MMFAN-16C
In Stock
$ 117.99 USD
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$ 117.99 USD
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This curved blade fan can be used as an upgrade to the OEM fan for more efficient cooling or fitment issues with aftermarket products. With its slim design, the fan can easily be installed flush against a radiator. For universal installation, use Mishimoto universal fan mount kit, T#363171. Features: High-flow curved blade fan provides 1850 cfm of airflow Universal fitment Compact design with a diameter of 16" and an overall thickness of only 3.2" provides increased engine bay space Mishimoto Lifetime Warranty WARNING! Prop 65 may apply to this product. Proposition 65 (Safe Drinking Water and Toxic Enforcement Act of 1968) is a California law that applies to call companies selling products in California. Prop 65 requires any listed chemical present above very low levels that are known to cause cancer, birth defects, or other reproductive harm. For more information about California Prop 65 warning see: www.P65Warnings.ca.gov.
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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
Sale - Save 5% $ 32.99

This product was last offered at the strikethrough price on
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$ 31.34 USD
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Sale - Save 5%
$ 32.99

This product was last offered at the strikethrough price on
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$ 31.34 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.
VTT Compete N54 Coolant Hose Kit - E8X, E9X N54
2X Entries Into Our F80 M3 Sweepstakes
Vargas Turbo Technologies - Corporate Logo
T#:590227
Part#: VTT-N54-COOLANT-
Ships in 10 Business Days
$ 469.99 USD
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$ 469.99 USD
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A complete upgrade to the weak factory hoses.

BMW E9X Z4 E8X Coolant Expansion Tank
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:402142
Part#: 17137640514
In Stock
Sale - Save 6% $ 70.99

This product was last offered at the strikethrough price on
06-22-2026

$ 66.83 USD
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$ 70.99

This product was last offered at the strikethrough price on
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$ 66.83 USD
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Includes level sensor

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
Sale - Save 5% $ 34.99

This product was last offered at the strikethrough price on
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$ 33.24 USD
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Sale - Save 5%
$ 34.99

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Located on the top of the radiator
Mishimoto - Corporate Logo
T#:29002063
Part#: MMOC10
In Stock
$ 126.99 USD
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BMW & MINI Universal Oil Cooler - 10 Row is a versatile cooling solution designed to enhance the performance and reliability of BMW and MINI vehicles. This high-quality oil cooler provides efficient cooling for the engine oil, ensuring optimal operating temperatures and extending the life of vital engine components.

Crafted with precision engineering and durable materials, the BMW & MINI Universal Oil Cooler - 10 Row is compatible with a wide range of BMW and MINI models, offering versatility and ease of installation. It effectively dissipates heat from the engine oil, reducing the risk of overheating and engine damage.

  • Enhances performance and reliability of BMW and MINI vehicles
  • Efficient cooling for engine oil, ensuring optimal operating temperatures
  • Extends the life of vital engine components
  • Compatible with a wide range of BMW and MINI models
  • Versatile and easy to install
  • Crafted with precision engineering and durable materials

Investing in the BMW & MINI Universal Oil Cooler - 10 Row is a smart choice for BMW and MINI owners looking to improve their vehicle's performance and longevity.

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Mishimoto - Corporate Logo
T#:8933504
Part#: MMOCULBK
In Stock
$ 536.99 USD
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$ 536.99 USD
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Ensure your BMW's engine performs at its peak with the installation of this highly efficient oil cooler from Mishimoto. Even in ideal driving conditions, elevated oil temperatures can lead to decreased pressure and compromised engine lubrication. This comprehensive kit includes four feet of stainless braided line, adapter fittings, and an oil filter sandwich adapter, all meticulously designed to reduce oil temperatures and uphold optimal driving circumstances.

  • Rows: 19
  • Overall Dimensions: 13" x 5.5" x 2"
  • Core Dimensions: 11.25" x 5.5" x 2"
  • Braided Hoses: 4ft .75 inch & 4ft 9 inch
  • Braided Hose Fittings: -10AN
  • Sandwich Plate Fittings: -10AN

Please take into consideration that this product may be subject to Proposition 65 (Safe Drinking Water and Toxic Enforcement Act of 1968). Proposition 65 is a California law that applies to companies selling products in California and necessitates the disclosure of chemicals known to cause cancer, birth defects, or other reproductive harm when present at levels exceeding specified thresholds. For further information regarding California Prop 65 warnings, visit www.P65Warnings.ca.gov.

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CSF - Corporate Logo
T#:384651
Part#: 7001
In Stock
$ 535.00 USD
Free Shipping
$ 535.00 USD
Free Shipping

CSF is one of the premier cooling product specialists available on the market thanks to designs such as their High Performance Aluminum Radiators. Using a single pass designed core, this radiator gives you all the cooling you could ever need. Paired with these radiators are CNC machined brackets and corrosion resistant hardware that allow final installation to have a same as stock fitment! This enables you to have much higher cooling without having to cut away any metal or delete any important components just for the sake of lower coolant temperatures. 

Features:

  • Two-row, triple-pass design radiator core
  • CNC machined mounting brackets
  • All needed hardware included
  • Hand polished aluminum with a mirror-like finish
  • Stock fitment prevents modification to engine bay

Fits the following BMWs:
2006-2012 E9X BMW 325i 328i 330i

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Rein Coolant Hose - E82, E84, E88, E90, E92, E93
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:592013
Part#: 17127599450
In Stock
Sale - Save 5% $ 58.99

This product was last offered at the strikethrough price on
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$ 56.04 USD
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Sale - Save 5%
$ 58.99

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$ 56.04 USD
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Connects your radiator to the thermostat

Mishimoto - Corporate Logo
T#:363461
Part#: MMTS-E90-07
In Stock
$ 83.99 USD
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$ 83.99 USD
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The thermostat regulates the temperature of your coolant. At a predetermined temperature the thermostat will open to let coolant flow to the radiator and be cooled by airflow or the fan. Over time the thermostat will become stuck open or closed, leading to a variety of issues. A closed thermostat will never allow the coolant to reach the radiator and be cooled. Hot coolant will continue to circulate through the engine and absorb even more heat until boiling and the system overheats. An open thermostat is not as bad but is still not ideal - the coolant is always cool, with the temp needle always reading in the cool range. This tells the ECU to richen the fuel mixture to bring the car up to normal operating temp. So your fuel mileage decreases and the car runs rich.   

Replacing the thermostat is an easy but messy job. This thermostat includes the main o-ring (but a housing gasket may be required). Consider replacing the housing and any associated temp sensors while you're in there. The cooling system will need to be bled after.  

For vehicles with plastic thermostat housing 

  

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Coolant Expansion Tank
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:592020
Part#: 17137640515
In Stock
Sale - Save 5% $ 97.99

This product was last offered at the strikethrough price on
08-30-2026

$ 93.09 USD
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$ 97.99

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$ 93.09 USD
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Includes level sensor
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
In Stock
$ 464.99 USD
Free Shipping on orders $49 and up
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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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
Sale - Save 23% $ 26.99

This product was last offered at the strikethrough price on
03-26-2026

$ 20.89 USD
Free Shipping on orders $49 and up
Sale - Save 23%
$ 26.99

This product was last offered at the strikethrough price on
03-26-2026

$ 20.89 USD
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HOSE F RADIATOR AND ENGINE R 64216951946 Manufactured by CRP

Mishimoto - Corporate Logo
T#:31291020
Part#: MMOC10BK
In Stock
$ 126.99 USD
Free Shipping on orders $49 and up

Universal Oil Cooler Black - 10 Row is engineered to maintain optimal oil temperatures and ensure peak engine performance under various driving conditions. This high-performance oil cooler effectively reduces oil temperatures, preventing a drop in pressure and maintaining proper engine lubrication. Featuring a robust 10-row design, it offers superior cooling efficiency compared to standard coolers.

  • Efficient Cooling: The 10-row design enhances cooling capacity to manage high oil temperatures effectively.
  • Durable Construction: Black finish provides durability and resistance to environmental factors.
  • Optimized Performance: Helps prevent a drop in oil pressure and maintains proper engine lubrication.
  • Versatile Fitment: Universal design suitable for various vehicles and applications.
  • Compact Size: Overall dimensions of 12.95" x 3.8" x 1.97" and core dimensions of 11" x 2.76" x 1.97" ensure a good fit in most engine bays.

WARNING! Prop 65 may apply to this product. Proposition 65 (Safe Drinking Water and Toxic Enforcement Act of 1968) is a California law that applies to all companies selling products in California. Prop 65 requires any listed chemical present above very low levels that are known to cause cancer, birth defects, or other reproductive harm. For more information about California Prop 65 warning see: www.P65Warnings.ca.gov.

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Vargas Turbo Technologies - Corporate Logo
T#:22987117
Part#: VTT-N54-COOLANTR
Ships in 7 Business Days
$ 464.99 USD
Free Shipping on orders $49 and up
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 Lower Radiator Hose - E82, E88, E90, E92, E93
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:340665
Part#: 17127564480
In Stock
Sale - Save 5% $ 50.99

This product was last offered at the strikethrough price on
08-30-2026

$ 48.44 USD
Free Shipping on orders $49 and up
Sale - Save 5%
$ 50.99

This product was last offered at the strikethrough price on
08-30-2026

$ 48.44 USD
Free Shipping on orders $49 and up
The hose that attaches to the bottom of the radiator

VTT Billet Coolant Reservoir Cap - Anodized Clear - Most BMWs 2006+ (...
This coolant cap retains ALL of the factory provisions by simply allowing you to snap t...
2X Entries Into Our F80 M3 Sweepstakes
Vargas Turbo Technologies - Corporate Logo
T#:7530035
Part#: COOLANTCAPRAW
Back Ordered
$ 78.99 USD
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$ 78.99 USD
Free Shipping
VTT is proud to offer their billet replacement for the factory plastic Coolant Reservoir cap. This cap does away with the weak plastic cap while adding some pop, and color to your engine bay. This coolant cap retains ALL of the factory provisions by simply allowing you to snap the factory pressure-relief into the new Billet Cap. VTT also designed these caps to complement their N5X Billet Oil caps, N5XBillet Oil filter housing caps, and Billet Power Steering cap, so all 4 will have the same design. These caps are offered in 4 colors – Red, Black, Blue, and Clear anodized Replaces Genuine BMW Reservoir Cap # 17117639020 Note: Fitment includes 99% of all BMW with a coolant Reservoir tank from the E series forward, meaning then fit even the brand New G8X M3/4 with the S58, all B58, etc. If your BMW is an E90 or newer this cap most likely will fit
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Rein - Corporate Logo
T#:17738369
Part#: 17127540020
In Stock at Vendor
Sale - Save 5% $ 40.83

This product was last offered at the strikethrough price on
08-30-2026

$ 38.79 USD
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Sale - Save 5%
$ 40.83

This product was last offered at the strikethrough price on
08-30-2026

$ 38.79 USD
Free Shipping on orders $49 and up
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.

Genuine BMW M Performance - Corporate Logo
T#:22536
Part#: 17127602294
Ships in 4 Business Days
10% off MSRP $ 194.99

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

$ 175.99 USD
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10% off MSRP
$ 194.99

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

$ 175.99 USD
Free Shipping


Genuine BMW Hose From Radiator Bottom - Thermostat
This item fits the following BMW Chassis:
E82 1M Coupe,E82,E92,E93

Fits BMW Engines including:
N54T

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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
Sale - Save 5% $ 32.99

This product was last offered at the strikethrough price on
08-30-2026

$ 31.34 USD
Free Shipping on orders $49 and up
Sale - Save 5%
$ 32.99

This product was last offered at the strikethrough price on
08-30-2026

$ 31.34 USD
Free Shipping on orders $49 and up
Connects to lower coolant pipe

Precision Raceworks - Corporate Logo
T#:38161689
Part#: 201-0393-BLU
In Stock
$ 109.99 USD
Free Shipping on orders $49 and up

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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Mishimoto - Corporate Logo
T#:637388
Part#: MMFAN-12C
Ships in 4 Business Days
$ 96.99 USD
Free Shipping
$ 96.99 USD
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BMW Mishimoto 12" Universal Curved Blade Electrical Fan

The BMW Mishimoto 12" Universal Curved Blade Electrical Fan is an ideal upgrade for enhancing cooling efficiency or addressing fitment issues with aftermarket components. Turner Motorsport offers this fan with a slim profile that allows for easy installation flush against the radiator, ensuring optimal performance and space utilization.

Benefits:

  • High-Flow Performance: Delivers 1150 CFM of airflow for superior cooling efficiency.
  • Universal Fitment: Designed to fit a wide range of vehicles and applications.
  • Compact Design: With a diameter of 12" and an overall thickness of just 2.5", it increases engine bay space and allows for flexible installation.
  • Versatile Operation: Easily reversible for use as either a pusher or puller fan.
  • Mishimoto Lifetime Warranty: Backed by Mishimoto's lifetime warranty for peace of mind.
  • Prop 65 Warning: Note that Proposition 65 may apply to this product. For more information, visit www.P65Warnings.ca.gov.
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Mishimoto - Corporate Logo
T#:51075062
Part#: MMWP-N54-07
In Stock
New Item
$ 383.99 USD
Free Shipping on orders $49 and up
The Mishimoto Electric Water Pump is the ideal choice for enthusiasts performing preventative maintenance or a full cooling system overhaul.
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
Sale - Save 5% $ 26.99

This product was last offered at the strikethrough price on
08-30-2026

$ 25.64 USD
Free Shipping on orders $49 and up
Sale - Save 5%
$ 26.99

This product was last offered at the strikethrough price on
08-30-2026

$ 25.64 USD
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Low temperature cooling module hose.


Rein Water Hose With Gasket - Water Pump To Engine Inlet
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:17804808
Part#: 11537584630R
In Stock
$ 40.99

This product was last offered at the strikethrough price on
08-24-2026

$ 36.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
$ 40.99

This product was last offered at the strikethrough price on
08-24-2026

$ 36.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
Rein OE quality water hoses are designed to be direct replacements for OE hoses and assemblies. This includes the hose and clamps.
Mishimoto - Corporate Logo
T#:1256484
Part#: MMOCULTBK
Ships in 4 Business Days
$ 599.99 USD
Free Shipping
$ 599.99 USD
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Introducing Mishimoto's Universal Oil Cooler (19 row with Thermostat)

In pursuit of optimal engine lubrication, even under ideal driving conditions, is paramount for BMW owners. Elevated oil temperatures can compromise oil pressure and hinder efficient lubrication. Turner Motorsport's new oil cooler offers a solution to maintain cool oil temperatures, ensuring your engine functions at its best. This comprehensive kit includes four feet of stainless braided line, adapter fittings, and an oil filter sandwich adapter.

Key Features:

  • Effective Heat Dissipation: The oil cooler efficiently dissipates heat, keeping oil temperatures within the optimal range for peak engine performance.
  • Comprehensive Kit: This kit includes four feet of stainless braided line, adapter fittings, and an oil filter sandwich adapter, providing everything you need for a seamless installation.
  • Precise Temperature Control: Equipped with a thermostat for fine temperature and flow control, ensuring the ideal oil temperature is maintained.
  • Proposition 65 Compliant: This product complies with Proposition 65, a California law that ensures product safety.

Elevate your BMW's engine performance and protect it from the effects of elevated oil temperatures. Turner Motorsport has the solution you need.

WARNING! Prop 65 may apply to this product.

Proposition 65 (Safe Drinking Water and Toxic Enforcement Act of 1968) is a California law that applies to all companies selling products in California. Prop 65 requires any listed chemical present above very low levels that are known to cause cancer, birth defects, or other reproductive harm.

For more information about California Prop 65 warning, see: www.P65Warnings.ca.gov.

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