BMW Cooling System Parts & Accessories for BMW 3 Series E90 (2006-2011)

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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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BMW Water Pump Kit - E9X/E8X N54/55
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:46616001
Part#: WPS0505
Ships in 4 Business Days
$ 944.99 USD
Free Shipping on orders $49 and up
Late-model external water pumps are typically more dependable and easier to service, with no gasket or O-ring to worry about. Replacing higher-mileage units during routine cooling system maintenance is a smart way to add extra peace of mind. Includes: Water pump Thermostat assembly Water pump elbow Coolant hoses Necessary hardware
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Coolant Expansion Tank
We Price Match - Give Us A Call or Chat!
Febi - Corporate Logo
T#:16242201
Part#: 17137590626
Ships in 2 Business Days
$ 123.99

This product was last offered at the strikethrough price on
05-08-2026

$ 120.99 USD
$ 120.99 USD
Rein Coolant Temperature Sensor - BMW E6X, E7X, E9X
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:52516266
Part#: ELC0090
Ships in 4 Business Days
New Item
$ 69.99 USD
Free Shipping on orders $49 and up
The Rein ELC0090 is a critical component for BMW N52-series engines, replacing the often-ignored "angle connector" located beneath the intake manifold.

Rubber Lower Radiator Mount Insert - Priced Each
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:593045
Part#: 17117805310
Ships in 2 Business Days
$ 18.99 USD
Free Shipping on orders $49 and up
Found at the bottom of the radiator

URO Water Pump - BMW N54/N55 3.0L
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:43750242
Part#: 11515A05704
In Stock
$ 333.99 USD
Free Shipping on orders $49 and up
If your water pump is starting to fail, you may notice coolant leaks, or even hear a whining noise coming from under the hood. If you think your water pump is starting to fail, replace it as soon as you can. Keep your eyes peeled for warning signs it may be time to replace your water pump. N54 and N55 engines are prone to water pump failure - replace every 60,000 miles.
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Spal - Corporate Logo
T#:598910
Part#: 30130013
In Stock at Vendor
$ 6.99 USD
Free Shipping on orders $49 and up
Wire pin used to mount electric fan directly to radiator.

BMW Radiator Hose Kit - 17127531581
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:46719188
Part#: CHK0462
Back Ordered
$ 43.99 USD
Free Shipping on orders $49 and up
Keep your cooling system sealed, strong, and ready for anything with this Rein radiator hose kit—your all-in-one fix for cracked, leaking, or worn factory hoses. Years of heat, pressure, and age can cause rubber to weaken, split, or swell, setting the stage for coolant leaks and potential overheating. Rein hoses are engineered to meet or exceed OEM standards, built from premium, heat-resistant materials that can take on extreme temperatures and system pressures without faltering. Each hose features factory-correct bends, fittings, and diameters for an exact, hassle-free installation—no cutting or forcing required. Whether you’re tackling a full cooling system refresh or chasing down a small coolant leak, this Rein kit provides everything needed to restore confidence and performance under the hood. Why choose this Rein radiator hose kit: Factory-level precision – Direct-fit replacements that deliver OEM-quality reliability. Built to last – Resists cracking, swelling, and chemical damage from daily heat cycling. Confidence restored – Prevents coolant loss, overheating, and on-road breakdowns. All-in-one upgrade – Includes upper and lower hoses for a complete system refresh. If keeping your BMW’s cooling system running tight and trouble-free is the goal, Rein brings the dependable quality and fitment you can count on—engineered to perform just like factory, mile after mile.
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Expansion Tank Cap
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:373099
Part#: 17137516004
Ships in 2 Business Days
$ 15.99

This product was last offered at the strikethrough price on
04-10-2026

$ 10.99 USD
Free Shipping on orders $49 and up
$ 10.99 USD
Free Shipping on orders $49 and up
The coolant expansion tank cap keeps necessary pressure on your coolant to increase efficiency. If you have an overheating issue in your vehicle, a simple, quick, and inexpensive part to replace is this cap.
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Spal - Corporate Logo
T#:598825
Part#: 30130074
In Stock at Vendor
$ 17.99 USD
Free Shipping on orders $49 and up
Provides .25" stand off from radiator, does not work with high output fans.

CSF Universal Large Single-Pass Oil Cooler - Universal Application ...
2X Entries Into Our F80 M3 Sweepstakes
Universal fitment design - modifications may be necessary to run this cooler
CSF - Corporate Logo
T#:53608839
Part#: 8371
Ships in 4 Business Days
New Item
$ 499.00 USD
Free Shipping
$ 499.00 USD
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CSF redesigned this cooler and went with a more traditional inlet/outlet orientation. The new single pass design features high efficiency and high durability, but with vertically oriented inlet and outlet connections.
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BMW Expansion Tank With Cap - 17138570079
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:46616019
Part#: EPK0146
Ships in 4 Business Days
$ 93.99 USD
Free Shipping on orders $49 and up
The coolant expansion tank serves as a reservoir for excess coolant as it expands and contracts with changing temperatures. Since it’s constantly exposed to extreme heat cycles, it can eventually crack, split, or suffer broken nipples or mounting points. To keep your cooling system sealed and operating properly, any damaged tank should be replaced.
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ATD Tools - Corporate Logo
T#:3629267
Part#: ATD3300
Ships in 7 Business Days
$ 497.99 USD
Free Shipping
$ 497.99 USD
Free Shipping
Adapters for most European and domestic vehicles


Mishimoto - Corporate Logo
T#:378434
Part#: MMFAN10
Ships in 4 Business Days
$ 88.99 USD
Free Shipping
$ 88.99 USD
Free Shipping
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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10,82x1,78 RD HNBR SH65
2X Entries Into Our F80 M3 Sweepstakes
Elring - Corporate Logo
T#:15015311
Part#: 17227581147
Ships in 3 Business Days
$ 3.99

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

$ 2.99 USD
Free Shipping on orders $49 and up
$ 2.99 USD
Free Shipping on orders $49 and up
O-ring for oil cooler
Elring Water Pump Gasket
2X Entries Into Our F80 M3 Sweepstakes
Elring - Corporate Logo
T#:591724
Part#: 11517793796
Ships in 3 Business Days
$ 10.99 USD
Free Shipping on orders $49 and up
Seals the water pump to the engine

Vargas Turbo Technologies - Corporate Logo
T#:51918881
Part#: VTT-COOLADBLUE
Ships on Sep 11, 2026
New Item
$ 31.99 USD
Free Shipping
$ 31.99 USD
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The Vargas Billet Cylinder Head Outlet Adapter is the definitive solution for one of the most common failure points in BMW N54 and N55 engines.

Vargas Turbo Technologies - Corporate Logo
T#:51918879
Part#: VTT-COOLADBLK
Ships on Sep 11, 2026
New Item
$ 31.99 USD
Free Shipping
$ 31.99 USD
Free Shipping
The Vargas Billet Cylinder Head Outlet Adapter is the definitive solution for one of the most common failure points on the BMW N54 and N55 engines.
Vargas Turbo Technologies - Corporate Logo
T#:52129743
Part#: N54COOLRADBLKO
Ships on Sep 11, 2026
New Item
$ 249.99 USD
Free Shipping
$ 249.99 USD
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The VTT Billet/Silicone Radiator Hose Kit is a heavy-duty cooling upgrade designed specifically for the BMW N54 engine.

Vargas Coolant Hose Upgrade Kit - Black - BMW E9X M3
2X Entries Into Our F80 M3 Sweepstakes
Vargas Turbo Technologies - Corporate Logo
T#:52164951
Part#: S65COOLFULLBLK
Ships on Sep 11, 2026
New Item
$ 524.99 USD
Free Shipping
$ 524.99 USD
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Upgrade your BMW E9X M3’s engine bay and cooling reliability simultaneously with the Vargas Turbo Technologies S65 Billet/Silicone Full Hose Kit.
Vargas Radiator Hose Kit - Black - BMW E9X M3
2X Entries Into Our F80 M3 Sweepstakes
Vargas Turbo Technologies - Corporate Logo
T#:52164958
Part#: S65RHKBLK
Back Ordered
New Item
$ 314.99 USD
Free Shipping
$ 314.99 USD
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The VTT S65 Radiator Hose Kit is the premier cooling system upgrade for the BMW E9X M3.

Vargas Turbo Technologies - Corporate Logo
T#:52129740
Part#: N54COOLFBO
Ships on Sep 11, 2026
New Item
$ 354.99 USD
Free Shipping
$ 354.99 USD
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The VTT N54 Full Coolant Hose Kit replaces your entire aging coolant hose network with high-performance silicone alternatives.

Vargas Turbo Technologies - Corporate Logo
T#:52164880
Part#: N54CLVTBLKO
Ships on Sep 11, 2026
New Item
$ 54.99 USD
Free Shipping
$ 54.99 USD
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The VTT N54 Upper Vent Hose is a critical upgrade for any BMW enthusiast looking to eliminate the weakest links in their cooling system.
Vargas Cylinder Head Outlet Coolant Adapter - BMW N54
2X Entries Into Our F80 M3 Sweepstakes
Vargas Turbo Technologies - Corporate Logo
T#:51813338
Part#: VTT-N54-CAO
Ships on Sep 11, 2026
New Item
$ 31.99 USD
Free Shipping
$ 31.99 USD
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Engineered for high-performance BMW builds, the Vargas Coolant Adapter replaces the weak factory plastic neck located at the front of the cylinder head.
Vargas Turbo Technologies - Corporate Logo
T#:52129739
Part#: VTTN54CLADOEM
Ships on Sep 11, 2026
New Item
$ 19.99 USD
Free Shipping
$ 19.99 USD
Free Shipping
Address the weakest link in your N54 cooling system with the Vargas Turbo Technologies Billet Cylinder Head Outlet Adapter.


Vargas Turbo Technologies - Corporate Logo
T#:52129742
Part#: VTTN54CLOWBLKO
Ships on Sep 11, 2026
New Item
$ 127.99 USD
Free Shipping
$ 127.99 USD
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The VTT Upgraded Silicone Lower Radiator Hose for the N54 engine is the perfect preventive maintenance item for any BMW owner.
Vargas Lower Radiator Hose - Black - BMW E9X M3
2X Entries Into Our F80 M3 Sweepstakes
Vargas Turbo Technologies - Corporate Logo
T#:52164955
Part#: S65COLLOWBLK
Ships on Sep 11, 2026
New Item
$ 179.99 USD
Free Shipping
$ 179.99 USD
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Designed for the S65 V8 engine, the VTT Lower Radiator Hose upgrade addresses the common maintenance headaches associated with aging BMW cooling systems.
Vargas Upper Vent Hose - Black - BMW E9X M3
2X Entries Into Our F80 M3 Sweepstakes
Vargas Turbo Technologies - Corporate Logo
T#:52164960
Part#: S65COUVHBLK
Ships on Sep 11, 2026
New Item
$ 74.99 USD
Free Shipping
$ 74.99 USD
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This VTT kit provides a permanent fix by utilizing heavy-duty silicone and anodized billet aluminum ends.

Vargas Turbo Technologies - Corporate Logo
T#:52164878
Part#: N54CLRADUBLKO
Ships on Sep 11, 2026
New Item
$ 139.99 USD
Free Shipping
$ 139.99 USD
Free Shipping
The Vargas Turbo Technologies (VTT) N54 Upper Radiator Hose is a heavy-duty cooling upgrade designed specifically for high-performance BMW N54 engines.

Vargas Water Pump Vent Hose - Black - BMW E9X M3
2X Entries Into Our F80 M3 Sweepstakes
Vargas Turbo Technologies - Corporate Logo
T#:52164956
Part#: S65COPUBLK
Ships on Sep 11, 2026
New Item
$ 104.99 USD
Free Shipping
$ 104.99 USD
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Prevent a roadside breakdown with the VTT Billet/Silicone S65 Water Pump Vent Hose, the ultimate maintenance upgrade for your BMW E9X M3.
Vargas Upper Radiator Hose - Black - BMW E9X M3
2X Entries Into Our F80 M3 Sweepstakes
Vargas Turbo Technologies - Corporate Logo
T#:52164959
Part#: S65COUPRABLK
Ships on Sep 11, 2026
New Item
$ 179.99 USD
Free Shipping
$ 179.99 USD
Free Shipping
The VTT Billet/Silicone Upper Radiator Hose is the only solution on the market that addresses both the hose material and the connector integrity simultaneously.

Genuine BMW - Corporate Logo
T#:55317651
Part#: 171178RLSKT
Ships in 3 Business Days
New Item
$ 56.33 USD
Free Shipping on orders $49 and up
Keep your cooling system locked down on the street and the track with the Turner Motorsports Radiator Lower Support & Bushing Kit.
Vargas Rear Coolant Plug - BMW N54
2X Entries Into Our F80 M3 Sweepstakes
Vargas Turbo Technologies - Corporate Logo
T#:51778143
Part#: VTT-N54-RCP
Ships on Sep 11, 2026
New Item
$ 41.99 USD
Free Shipping
$ 41.99 USD
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Engineered for durability and exact fitment, the VTT N54 Rear Coolant Plug is CNC-machined from high-quality 6061-T6 aluminum.

Vargas Turbo Technologies - Corporate Logo
T#:52129741
Part#: N54COOLHBO
Ships on Sep 11, 2026
New Item
$ 74.99 USD
Free Shipping
$ 74.99 USD
Free Shipping
The VTT N54 Billet/Silicone Cylinder Head Outlet Hose, commonly referred to as the "Mickey Mouse" hose, is a vital upgrade for the BMW N54 engine.

Vargas Turbo Technologies - Corporate Logo
T#:52164954
Part#: S65COOLHEATBLK
Ships on Sep 11, 2026
New Item
$ 127.99 USD
Free Shipping
$ 127.99 USD
Free Shipping
Upgrade your BMW M3’s engine bay while simultaneously reinforcing your cooling system with the VTT Billet/Silicone Heater Return Pipe Hose.
Genuine BMW - Corporate Logo
T#:35671
Part#: 11517514942
Ships in 3 Business Days
6% off MSRP $ 16.99

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

$ 16.00 USD
Free Shipping on orders $49 and up
6% off MSRP
$ 16.99

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

$ 16.00 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 Fan Shroud
For vehicles with 400W fan
Genuine BMW - Corporate Logo
T#:47094
Part#: 17427533274
Ships in 6 Business Days
4% off MSRP $ 197.99

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

$ 189.99 USD
Free Shipping
4% off MSRP
$ 197.99

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

$ 189.99 USD
Free Shipping


Genuine BMW Fan Shroud -
This item fits the following BMW Chassis:
E82,E89 Z4,E90,E92,E93

Fits BMW Engines including:
N52,N52N



Electric Fan With Shroud
For vehicles with Towing Package
Genuine BMW - Corporate Logo
T#:7068787
Part#: 17425A3F106
Ships in 3 Business Days
2% off MSRP $ 962.99

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

$ 942.99 USD
2% off MSRP
$ 962.99

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

$ 942.99 USD
Genuine BMW - Corporate Logo
T#:119242
Part#: 51757145287
Ships in 3 Business Days
4% off MSRP $ 113.99

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

$ 108.99 USD
Free Shipping on orders $49 and up
4% off MSRP
$ 113.99

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

$ 108.99 USD
Free Shipping on orders $49 and up


Genuine BMW Radiator Seal -
This item fits the following BMW Chassis:
E90,E92

Hose Clamp 2 5/16" - 3 1/4" - priced each
10X Entries Into Our F80 M3 Sweepstakes
ECS - Corporate Logo
T#:376806
Part#: 54155K23
Ships in 1-2 days
$ 4.99 USD
Free Shipping on orders $49 and up

Hose Clamp 2 5/16" - 3 1/4"

Ensure secure hose connections with the Hose Clamp 2 5/16" - 3 1/4", a versatile and reliable solution for various applications. Crafted from durable materials, this clamp offers superior strength and corrosion resistance. Its adjustable design allows for a snug fit, reducing the risk of leaks and ensuring optimal performance. Upgrade your hose connections with the precision and reliability of the Hose Clamp 2 5/16" - 3 1/4".

  • Versatile and reliable solution for various applications
  • Superior strength and corrosion resistance
  • Adjustable design for a snug fit
  • Reduces risk of leaks for optimal performance
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Genuine BMW - Corporate Logo
T#:31318
Part#: 11122247745
Ships in 3 Business Days
8% off MSRP $ 12.99

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

$ 11.99 USD
Free Shipping on orders $49 and up
8% off MSRP
$ 12.99

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

$ 11.99 USD
Free Shipping on orders $49 and up


Genuine BMW Profile-Gasket -
This item fits the following BMW Chassis:
E70 X5,E90

Fits BMW Engines including:
M57


Genuine BMW - Corporate Logo
T#:7068785
Part#: 17425A3F109
Ships in 3 Business Days
2% off MSRP $ 1,429.99

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

$ 1,399.99 USD
2% off MSRP
$ 1,429.99

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

$ 1,399.99 USD
If your electric fan were to fail, your engine will overheat when idling or stopped. This replacement fan will get your BMW back on the road safely. Genuine BMW Fan Housing With Fan - 600W This item fits the following BMW Chassis: E82,E89 Z4,E90,E92,E93 Fits BMW Engines including: N20,N54,N54T,N55
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Bremmen Parts Coolant Hose - E82, E88, E90, E92, E93, Z4
10X Entries Into Our F80 M3 Sweepstakes
Bremmen Parts - Corporate Logo
T#:1195934
Part#: 17127548203
Ships in 1-2 days
Sale - Save 15% $ 57.11

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

$ 48.54 USD
Free Shipping on orders $49 and up
Sale - Save 15%
$ 57.11

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

$ 48.54 USD
Free Shipping on orders $49 and up
Low temperature cooling module hose.

Genuine BMW - Corporate Logo
T#:152356
Part#: 64538369549
Ships in 4 Business Days
$ 6.99 USD
Free Shipping on orders $49 and up


Genuine BMW Bracket Pressure Pipe Airconditioner
This item fits the following BMW Chassis:
E39 M5,E53 48IS,E39,E53 X5,E82,E85 Z4,E90,E92,E93

Genuine BMW - Corporate Logo
T#:15096
Part#: 17117794488
Ships in 6 Business Days
8% off MSRP $ 526.99

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

$ 482.99 USD
Free Shipping
8% off MSRP
$ 526.99

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

$ 482.99 USD
Free Shipping


Genuine BMW Radiator -
This item fits the following BMW Chassis:
E90

Fits BMW Engines including:
M57


Victor Reinz O-Ring
Found at the flange end of the upper thermostat hose
Victor Reinz - Corporate Logo
T#:388687
Part#: 11537545278
In Stock
$ 6.11 USD
Free Shipping on orders $49 and up
$ 6.11 USD
Free Shipping on orders $49 and up
Seals your cooling system

Victor Reinz - Corporate Logo
T#:580584
Part#: C32348
Ships in 7 Business Days
$ 3.99

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

$ 2.99 USD
Free Shipping on orders $49 and up
$ 2.99 USD
Free Shipping on orders $49 and up
Genuine BMW - Corporate Logo
T#:150760
Part#: 64216928593
Ships in 9 Business Days
6% off MSRP $ 52.99

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

$ 49.99 USD
Free Shipping on orders $49 and up
6% off MSRP
$ 52.99

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

$ 49.99 USD
Free Shipping on orders $49 and up


Genuine BMW Hose F Add.Water Pump,Engine Return -
This item fits the following BMW Chassis:
E90

Genuine BMW - Corporate Logo
T#:152319
Part#: 64536957494
Ships in 9 Business Days
3% off MSRP $ 29.99

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

$ 28.99 USD
Free Shipping on orders $49 and up
3% off MSRP
$ 29.99

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

$ 28.99 USD
Free Shipping on orders $49 and up


Genuine BMW Bracket Suction Pipe Airconditioner
This item fits the following BMW Chassis:
E82 1M Coupe,E82,E90,E92,E93



Genuine BMW - Corporate Logo
T#:152318
Part#: 64536951642
Special Order: No Guaranteed ETA
$ 15.99 USD
Free Shipping on orders $49 and up


Genuine BMW Filler Connection Bracket -
This item fits the following BMW Chassis:
E82,E90,E92,E93

Precision Raceworks - Corporate Logo
T#:38161691
Part#: 201-0393-SIL
Ships in 9 Business Days
$ 109.99 USD
Free Shipping on orders $49 and up

BMW Silver Engine Coolant Reservoir Cap is a premium upgrade for BMW owners looking to enhance both the performance and appearance of their engine bay. Crafted from high-strength billet aluminum, this cap replaces the factory plastic version, offering superior durability and a refined, professional look.

Designed with functionality in mind, it integrates the OEM pressure relief system to ensure your engine's cooling system remains safe and efficient. Unlike adhesive covers, which can peel or wear over time, this cap is a direct-fit replacement, providing a secure and leak-proof seal. The silver anodized finish not only enhances the visual appeal but also ensures resistance to corrosion, high temperatures, and wear, making it perfect for daily driving and track use.

  • OEM pressure relief integration – Maintains proper cooling system performance and reliability
  • Durable billet aluminum – Outperforms factory plastic caps in longevity and strength
  • Precision-machined for perfect fitment – Replaces the stock cap securely, not just a cover
  • Anodized silver finish – Offers corrosion, heat, and wear resistance
  • Elevates engine bay aesthetics – Adds a clean, professional appearance
  • Built for both street and track use – Designed to withstand extreme conditions

Enhance your BMW’s cooling system with the BMW Silver Engine Coolant Reservoir Cap, providing both style and functionality for years to come.

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