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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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URO Engine Block Coolant Flange - BMW E90 E70 M57

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T#:637727

Part#: 11127806196

Back Ordered

$ 11.99 USD

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$ 11.99 USD

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Replace your broken, cracked, or leaking coolant flange with this URO coolant flange to restore proper engine cooling

Universal 10" Electric Fan - Black

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T#:378434

Part#: MMFAN10

In Stock at Vendor

$ 88.99 USD

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$ 88.99 USD

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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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BMW Expansion Tank With Cap - 17138570079

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T#:46616019

Part#: EPK0146

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$ 93.99 USD

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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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Fan mounting pin - priced each

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T#:598910

Part#: 30130013

In Stock at Vendor

$ 6.99 USD

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$ 6.99 USD

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Wire pin used to mount electric fan directly to radiator.

Vargas Upgraded Silicone Upper Vent Hose - Black - BMW N54 E8X/E9X ...

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T#:52164880

Part#: N54CLVTBLKO

Ships in 10 Business Days

$ 54.99 USD

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$ 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 Billet Upper Coolant Line Block-Off - BMW N55 & S55 Engines ...

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T#:52094575

Part#: VTT-FAB-047

Ships in 10 Business Days

$ 21.99 USD

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$ 21.99 USD

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When building a custom turbo kit, the "VTT-FAB-047" Block-Off Flange is an essential component for managing your BMW's thermal systems.

Vargas Billet Cylinder Head Outlet Adapter - Blue - BMW N54/N55 ...

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T#:51918881

Part#: VTT-COOLADBLUE

Ships in 10 Business Days

$ 31.99 USD

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$ 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 Billet Cylinder Head Outlet Adapter - Black - BMW N54/N55 ...

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T#:51918879

Part#: VTT-COOLADBLK

Ships in 10 Business Days

$ 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 on the BMW N54 and N55 engines.

Vargas Heater Return Pipe Hose Upgrade - Black - BMW E9X M3

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T#:52164954

Part#: S65COOLHEATBLK

Ships in 10 Business Days

$ 127.99 USD

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$ 127.99 USD

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Upgrade your BMW M3’s engine bay while simultaneously reinforcing your cooling system with the VTT Billet/Silicone Heater Return Pipe Hose.

Vargas Rear Coolant Plug - BMW N54

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T#:51778143

Part#: VTT-N54-RCP

Ships in 10 Business Days

$ 41.99 USD

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$ 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 Cylinder Head Outlet Coolant Adapter - BMW N54

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T#:51813338

Part#: VTT-N54-CAO

Ships in 10 Business Days

$ 31.99 USD

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$ 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 Upgraded Silicone Upper Radiator Hose - Black - BMW N54 E8X/E9...

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T#:52164878

Part#: N54CLRADUBLKO

Ships in 10 Business Days

$ 139.99 USD

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$ 139.99 USD

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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

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T#:52164956

Part#: S65COPUBLK

Ships in 10 Business Days

$ 104.99 USD

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$ 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 Upgraded Silicone Cylinder Head Outlet Adapter - Black - BMW N...

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T#:52129739

Part#: VTTN54CLADOEM

Ships in 10 Business Days

$ 19.99 USD

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$ 19.99 USD

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Address the weakest link in your N54 cooling system with the Vargas Turbo Technologies Billet Cylinder Head Outlet Adapter.

Vargas Upgraded Silicone Cylinder Head Outlet Hose - Black - BMW N54 ...

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T#:52129741

Part#: N54COOLHBO

Ships in 10 Business Days

$ 74.99 USD

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$ 74.99 USD

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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 Upper Radiator Hose - Black - BMW E9X M3

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T#:52164959

Part#: S65COUPRABLK

Ships in 10 Business Days

$ 179.99 USD

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$ 179.99 USD

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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.

Vargas Upgraded Silicone Coolant Hose Kit - Black - BMW N54

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T#:52129740

Part#: N54COOLFBO

Ships in 10 Business Days

$ 354.99 USD

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$ 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 Upgraded Silicone Lower Radiator Coolant Hose - Black - BMW N5...

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T#:52129742

Part#: VTTN54CLOWBLKO

Ships in 10 Business Days

$ 127.99 USD

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$ 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 Upgraded Silicone Radiator Hose Kit - Black - BMW N54 ...

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T#:52129743

Part#: N54COOLRADBLKO

Ships in 10 Business Days

$ 249.99 USD

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$ 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 Upper Vent Hose - Black - BMW E9X M3

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T#:52164960

Part#: S65COUVHBLK

Ships in 10 Business Days

$ 74.99 USD

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$ 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 Coolant Hose Upgrade Kit - Black - BMW E9X M3

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T#:52164951

Part#: S65COOLFULLBLK

Ships in 10 Business Days

$ 524.99 USD

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$ 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 Lower Radiator Hose - Black - BMW E9X M3

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T#:52164955

Part#: S65COLLOWBLK

Ships in 10 Business Days

$ 179.99 USD

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$ 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.

Radiator Lower Support & Bushing Kit

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T#:55317651

Part#: 171178RLSKT

Ships in 2 Business Days

$ 56.33 USD

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$ 56.33 USD

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Keep your cooling system locked down on the street and the track with the Turner Motorsports Radiator Lower Support & Bushing Kit.

Vargas Radiator Hose Kit - Black - BMW E9X M3

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T#:52164958

Part#: S65RHKBLK

Back Ordered

$ 314.99 USD

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$ 314.99 USD

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The VTT S65 Radiator Hose Kit is the premier cooling system upgrade for the BMW E9X M3.

Genuine BMW Fan Shroud

For vehicles with 400W fan

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T#:47094

Part#: 17427533274

Ships in 2 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

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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

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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

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T#:7068787

Part#: 17425A3F106

Ships in 2 Business Days

2% off MSRP $ 962.99

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$ 942.99 USD

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2% off MSRP

$ 962.99

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$ 942.99 USD

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Genuine BMW Lower Radiator Seal

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T#:119242

Part#: 51757145287

Ships in 1-2 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

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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

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

Bremmen Parts Coolant Hose - E82, E88, E90, E92, E93, Z4

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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

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Sale - Save 15%

$ 57.11

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

$ 48.54 USD

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Low temperature cooling module hose.

Genuine BMW Fan w/ Housing - E82/88 E9X Z4

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T#:7068785

Part#: 17425A3F109

Ships in 2 Business Days

2% off MSRP $ 1,429.99

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$ 1,399.99 USD

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2% off MSRP

$ 1,429.99

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$ 1,399.99 USD

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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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Genuine BMW O-ring - 11517514942

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T#:35671

Part#: 11517514942

Ships in 2 Business Days

6% off MSRP $ 16.99

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$ 16.00 USD

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6% off MSRP

$ 16.99

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$ 16.00 USD

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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 Coolant Pipe Gasket - E90 E70 M57 3.0L

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T#:31318

Part#: 11122247745

In Stock

8% off MSRP $ 12.99

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$ 11.99 USD

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8% off MSRP

$ 12.99

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$ 11.99 USD

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

Fits BMW Engines including:
M57

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

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T#:376806

Part#: 54155K23

Ships in 1-2 days

$ 4.99 USD

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$ 4.99 USD

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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 Radiator - E90 335d

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T#:15096

Part#: 17117794488

Ships in 4 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

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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

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

Fits BMW Engines including:
M57

Bracket Pressure Pipe Airconditioner - E39, E53, E82, E88, E90, E91, ...

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T#:152356

Part#: 64538369549

Ships in 4 Business Days

$ 6.99 USD

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$ 6.99 USD

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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

Victor Reinz O-Ring

Found at the flange end of the upper thermostat hose

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T#:388687

Part#: 11537545278

Ships in 3 Business Days

$ 6.11 USD

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$ 6.11 USD

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Seals your cooling system

O-RING

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T#:580584

Part#: C32348

In Stock

$ 3.99

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

$ 2.99 USD

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$ 2.99 USD

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Bracket Suction Pipe Airconditioner - E82, E84, E88, E90, E92, E93 ...

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T#:152319

Part#: 64536957494

Ships in 7 Business Days

3% off MSRP $ 29.99

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$ 28.99 USD

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3% off MSRP

$ 29.99

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$ 28.99 USD

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

Additional Water Pump Hose - Engine Return - E90

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T#:150760

Part#: 64216928593

Ships in 7 Business Days

6% off MSRP $ 52.99

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$ 49.99 USD

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6% off MSRP

$ 52.99

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$ 49.99 USD

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

Filler Connection Bracket - E82, E88, E90, E91, E92, E93

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T#:152318

Part#: 64536951642

Ships in 8 Business Days

$ 15.99 USD

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$ 15.99 USD

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

BMW Silver Engine Coolant Reservoir Cap

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T#:38161691

Part#: 201-0393-SIL

Ships in 8 Business Days

$ 115.99

This product was last offered at the strikethrough price on
01-22-2026

$ 109.99 USD

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$ 109.99 USD

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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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Anti-Freeze Tester

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T#:641679

Part#: CTAA195

Ships on Jul 28, 2026

$ 9.98 USD

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$ 9.98 USD

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Tests all ethylene glycol solutions with radiator hot or cold

Water Pump Service Kit

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T#:38161728

Part#: 11515A05704

Ships on Jul 28, 2026

$ 749.99 USD

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$ 749.99 USD

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BMW N54 N55 Water Pump

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T#:592891

Part#: 11517563659

Ships on Jul 30, 2026

$ 759.99 USD

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$ 759.99 USD

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BMW N54 N55 Water Pump ensures reliable cooling performance for your BMW's engine. This high-quality water pump is designed for late-model N54 and N55 engines, offering enhanced reliability and ease of service. Unlike older models, it does not require a gasket or o-ring, simplifying installation and maintenance. Replacing worn water pumps during routine cooling system services is crucial for maintaining optimal engine performance and preventing overheating issues.

Enhanced reliability for peace of mind
Easy installation and serviceability
No need for gasket or o-ring
Maintains optimal engine cooling efficiency
Designed specifically for BMW N54 and N55 engines

Ensure your BMW's engine stays cool and performs efficiently with the BMW N54 N55 Water Pump.

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Thermostat

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T#:393494

Part#: 11537601158

Ships on Jul 30, 2026

$ 108.99 USD

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$ 108.99 USD

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Water Pipe

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T#:39295542

Part#: 11537545890

Ships on Sep 28, 2026

Sale - Save 17% $ 20.99

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

$ 17.33 USD

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Sale - Save 17%

$ 20.99

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

$ 17.33 USD

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Bremmen Parts Coolant Hose - E9X N52

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T#:38621425

Part#: 11537521049

In Stock

Sale - Save 23% $ 18.99

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

$ 14.68 USD

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Sale - Save 23%

$ 18.99

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

$ 14.68 USD

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Over the years and with exposure to extremely hot coolant, the coolant hoses in your vehicle can take a beating. Being made of reinforced rubber, these hoses can fail in a number of ways. Splitting at a hose clamp, swelling, cracking, and breaking are just a few of the ways this hose can leave you stranded. Replace it at the first sign of wear to keep your coolant in your engine.

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Water Pump Bolt

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T#:15478736

Part#: 11 510392553

Ships on Aug 4, 2026

$ 5.99 USD

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$ 5.99 USD

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Secures the water pump in place.

OEM VDO Electric Radiator Fan With Shroud

For vehicles with Towing Package

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T#:3077088

Part#: 17427562080

Special Order: No Guaranteed ETA

$ 516.99 USD

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$ 516.99 USD

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This is an entire electric fan assembly that includes both the fan motor itself as well as the fan blade.

OEM VDO Fan Housing With Fan - 17117590699

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T#:3077089

Part#: 17117590699

Special Order: No Guaranteed ETA

$ 368.99 USD

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$ 368.99 USD

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OEM VDO Fan Housing With Fan - 400W
This item fits the following BMW Chassis:
E82,E89 Z4,E90,E92,E93

Fits BMW Engines including:
N52,N52N

Elring Coolant Pipe O-Ring Seal - BMW N52 3.0L

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:45415209

Part#: 266.480

Special Order: No Guaranteed ETA

$ 2.99 USD

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$ 2.99 USD

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Seals the connection between the water pump hose and the engine inlet Replaces BMW # 11517514942

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