BMW Cooling System Parts & Accessories for BMW 3 Series E93 (2007-2013)

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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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Thermostat Installation Kit with Thermostat - N54, N55, S55
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T#:55353595
Part#: OTN54.T85KT3
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High oil temperatures are the ultimate enemy of your engine's longevity and performance. If you want to keep pushing your BMW to the limit you need to manage the heat.
Basic Cooling System Service Kit - E9X M3 S65 - Dry
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T#:53891614
Part#: 17112283500KT
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ECS High-Flow Water Pump Upgrade - E9X E8X N52
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T#:49822518
Part#: 044952LA04KT
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The N5X family of engines marked the start of a new era for BMW. The all-new aluminum block powerplants featured a host of technical upgrades, aiding in power output, reliability, and performance. Among these technological advances is an external electronic water pump, which removed load from the engine's accessory drive and allowed for advanced pulse-width-modulated (PWM) control.

From factory, the N52's electronic water pump is limited to a measly 200W output—strong enough for daily driving, but lacking in performance applications. Recognizing this shortcoming, ECS engineers set out to create a high-flow water pump upgrade that doesn't break the bank. Their high-quality adapter wiring harness and bracket allow you to install a 400W N54 water pump without any modification, an effortless, yet effective upgrade that doubles the output of the factory water pump!

By increasing coolant flow capacity, the 400W pump improves heat extraction from the cylinder head and engine block during high-load operation. This added thermal headroom is particularly beneficial for modified engines, sustained aggressive driving, track use, or operation in elevated ambient temperatures where the factory pump can operate near its limits. Improved circulation helps maintain more stable coolant temperatures and reduces the risk of localized hot spots.

Features & Benefits:

Upgrades to the more powerful 400W N54 water pump for increased coolant flow and improved engine cooling efficiency Sealed adaptor harness ensures secure connections and optimal operation under demanding conditions The N54 pump's higher power output offers longer-lasting, more effective cooling compared to the stock N52 pump Design:

40A fused power wire safely handles the increased power demands of the N54 pump, providing consistent and stable performance Sealed and robust construction, designed to withstand heat and moisture, ensuring reliability in even the most challenging environments Plug-and-play compatibility is designed for easy integration with the N52 engine and N54 water pump, minimizing installation time and complexity Kit Contents:

ECS N54 Water Pump Adapter Kit Conversion wiring harness Aluminum bracket Installation hardware Bavarian Autosport Water Pump (11517632426)

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Mishimoto Water Pump - BMW E60, E82, E88, E89, E90, E92, E93 1' 3'5' ...
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Mishimoto - Corporate Logo
T#:51075062
Part#: MMWP-N54-07
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The Mishimoto Electric Water Pump is the ideal choice for enthusiasts performing preventative maintenance or a full cooling system overhaul.

ECS High-Flow Water Pump Upgrade With Aluminum Water Pump - E9X E8X N...
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ECS - Corporate Logo
T#:49822519
Part#: 044952LA04AKT
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$ 597.99 USD
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The N5X family of engines marked the start of a new era for BMW. The all-new aluminum block powerplants featured a host of technical upgrades, aiding in power output, reliability, and performance. Among these technological advances is an external electronic water pump, which removed load from the engine's accessory drive and allowed for advanced pulse-width-modulated (PWM) control.

From factory, the N52's electronic water pump is limited to a measly 200W output—strong enough for daily driving, but lacking in performance applications. Recognizing this shortcoming, ECS engineers set out to create a high-flow water pump upgrade that doesn't break the bank. Their high-quality adapter wiring harness and bracket allow you to install a 400W N54 water pump without any modification, an effortless, yet effective upgrade that doubles the output of the factory water pump!

By increasing coolant flow capacity, the 400W pump improves heat extraction from the cylinder head and engine block during high-load operation. This added thermal headroom is particularly beneficial for modified engines, sustained aggressive driving, track use, or operation in elevated ambient temperatures where the factory pump can operate near its limits. Improved circulation helps maintain more stable coolant temperatures and reduces the risk of localized hot spots.

Features & Benefits:

Upgrades to the more powerful 400W N54 water pump for increased coolant flow and improved engine cooling efficiency Sealed adaptor harness ensures secure connections and optimal operation under demanding conditions The N54 pump's higher power output offers longer-lasting, more effective cooling compared to the stock N52 pump Design:

40A fused power wire safely handles the increased power demands of the N54 pump, providing consistent and stable performance Sealed and robust construction, designed to withstand heat and moisture, ensuring reliability in even the most challenging environments Plug-and-play compatibility is designed for easy integration with the N52 engine and N54 water pump, minimizing installation time and complexity Kit Contents:

ECS N54 Water Pump Adapter Kit Conversion wiring harness Aluminum bracket Installation hardware Pierburg Full Aluminum Water Pump (11515A05704) Installation:

- Click HERE for Installation Instructions -

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CSF Universal Large Single-Pass Oil Cooler - Universal Application ...
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Universal fitment design - modifications may be necessary to run this cooler
CSF - Corporate Logo
T#:53608839
Part#: 8371
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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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Rein Coolant Hose With Metal Flange - E82, E88, E9x - N55
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Rein - Corporate Logo
T#:53750144
Part#: CHU0629
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Upgraded Coolant Hose from Rein Featuring Metal Flanges to Reduce Leaks
Vargas Billet Cylinder Head Outlet Adapter - Blue - BMW N54/N55 ...
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Vargas Turbo Technologies - Corporate Logo
T#:51918881
Part#: VTT-COOLADBLUE
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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 Upgraded Silicone Lower Radiator Coolant Hose - Black - BMW N5...
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T#:52129742
Part#: VTTN54CLOWBLKO
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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 Billet Upper Coolant Line Block-Off - BMW N55 & S55 Engines ...
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Vargas Turbo Technologies - Corporate Logo
T#:52094575
Part#: VTT-FAB-047
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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 Lower Radiator Hose - Black - BMW E9X M3
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T#:52164955
Part#: S65COLLOWBLK
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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 Billet Cylinder Head Outlet Adapter - Black - BMW N54/N55 ...
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T#:51918879
Part#: VTT-COOLADBLK
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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 Upgraded Silicone Cylinder Head Outlet Hose - Black - BMW N54 ...
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T#:52129741
Part#: N54COOLHBO
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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
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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 Coolant Hose Upgrade Kit - Black - BMW E9X M3
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T#:52164951
Part#: S65COOLFULLBLK
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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 Water Pump Vent Hose - Black - BMW E9X M3
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T#:52164956
Part#: S65COPUBLK
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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 Vent Hose - Black - BMW E9X M3
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Vargas Turbo Technologies - Corporate Logo
T#:52164960
Part#: S65COUVHBLK
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This VTT kit provides a permanent fix by utilizing heavy-duty silicone and anodized billet aluminum ends.
Vargas Radiator Hose Kit - Black - BMW E9X M3
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T#:52164958
Part#: S65RHKBLK
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The VTT S65 Radiator Hose Kit is the premier cooling system upgrade for the BMW E9X M3.

Vargas Rear Coolant Plug - BMW N54
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T#:51778143
Part#: VTT-N54-RCP
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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 Heater Return Pipe Hose Upgrade - Black - BMW E9X M3
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T#:52164954
Part#: S65COOLHEATBLK
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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.

Radiator Lower Support & Bushing Kit
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T#:55317651
Part#: 171178RLSKT
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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.

ECS Silicone Coolant Outlet Hose (11537584549) - E9X E8X N55 ...
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T#:55497447
Part#: 060105LA01-02
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Upgrading your cooling system or replacing old, brittle rubber hoses? Don't just replace them—upgrade them. This silicone coolant outlet hose from ECS Tuning delivers perfect OEM fitment with superior heat tolerance and a longer service life. Unlike standard rubber, which softens and degrades from constant heat cycles, high-grade silicone is built to last. Give your cooling system the reliability it deserves.

This hose connects the outlet on the thermostat housing to the front of the cylinder head. It replaces OEM BMW part number 11537584549.

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Radiator Hose - Lower
For N52 engines only
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Bremmen Parts - Corporate Logo
T#:53008808
Part#: 17127564478
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Coolant Expansion Tank
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Meyle - Corporate Logo
T#:54959296
Part#: 314 223 0004
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This Meyle original-quality expansion tank provides a durable, reliable solution to get your cooling system back to performing exactly as it should.


Coolant Expansion Tank - With Cap
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Bremmen Parts - Corporate Logo
T#:55497428
Part#: 17137640514
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$ 69.99 USD
Coolant Thermostat
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Meyle - Corporate Logo
T#:55461389
Part#: 11537549476
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This Meyle coolant thermostat provides a refresh for your thermal management system, keeping your engine operating exactly where the engineers intended.
Vargas Rear Drain Block Off - BMW N54
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T#:51778139
Part#: VTT-N54-RDBO
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Simplify your N54 engine build with the VTT Rear Drain Block Off.

Electric Water Pump
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T#:54959290
Part#: 313 220 0017
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Whether you are daily driving or doing a preventative cooling overhaul, this high-quality replacement pump includes fresh mounting hardware to ensure your BMW's cooling system remains reliable.