BMW Cooling System Parts & Accessories for BMW X Series F15 (2014+)

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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
Thermostat Installation Kit with Thermostat - N54, N55, S55
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:55353595
Part#: OTN54.T85KT3
In Stock
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$ 390.23 USD
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$ 390.23 USD
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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.
Water Pump Lvl 2 Kit - N57
Water Pump Lvl 2 Kit - N57
For Vehicles WITHOUT Active Steering (S217A) or Dynamic Drive (S2VPA)
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:58307537
Part#: 11518516205AKT
Ships on Nov 2, 2026
New Item
$ 397.99 USD
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$ 397.99 USD
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For Vehicles WITHOUT Active Steering (S217A) or Dynamic Drive (S2VPA). The Turner Water Pump Lvl 2 Kit for BMW N57 diesels restores thermal reliability. Factory N57 pumps and tensioners degrade, causing overheating and belt slippage. The Level 2 package resolves coolant leaks by integrating a replacement pump, 87-degree thermostat, drive assembly, and BMW Blue G48 antifreeze.
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Water Pump Lvl 2 Kit - N57 (S217A/S2VPA)
Water Pump Lvl 2 Kit - N57 (S217A/S2VPA)
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:58307538
Part#: 11518516205BKT
Back Ordered
New Item
$ 453.99 USD
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$ 453.99 USD
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For Vehicles WITH Active Steering (S217A) or Dynamic Drive (S2VPA). The Turner Water Pump Lvl 2 Kit for BMW N57 diesels restores thermal reliability. Factory N57 pumps and tensioners degrade, causing overheating and belt slippage. The Level 2 package resolves coolant leaks by integrating a replacement pump, 87-degree thermostat, drive assembly, and BMW Blue G48 antifreeze.
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Vargas Billet Upper Coolant Line Block-Off - BMW N55 & S55 Engines
Vargas Billet Upper Coolant Line Block-Off - BMW N55 & S55 Engines ...
2X Entries Into Our F80 M3 Sweepstakes
Vargas Turbo Technologies - Corporate Logo
T#:52094575
Part#: VTT-FAB-047
Ships on Oct 16, 2026
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$ 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.
Electric Water Pump
Electric Water Pump
5X Entries Into Our F80 M3 Sweepstakes
Meyle - Corporate Logo
T#:54959291
Part#: 313 220 0018
In Stock
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$ 96.99 USD
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$ 96.99 USD
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This mechanical water pump from Meyle is engineered to maintain optimal engine temperatures by driving consistent, efficient coolant circulation.
Coolant Outlet Hose
Coolant Outlet Hose
Burgaflex - Corporate Logo
T#:57725187
Part#: 11537541992
Ships in 8 Business Days
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$ 26.99 USD
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$ 26.99 USD
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The Burgaflex Coolant Outlet Hose delivers track-ready reliability for high-demand driving conditions.
CSF Universal Large Single-Pass Oil Cooler - Universal Application
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
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$ 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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Rein Thermostat Assembly - F22 F87 F23 F30 F34 F32 F33 F36 F15 F16 - N55
Rein Thermostat Assembly - F22 F87 F23 F30 F34 F32 F33 F36 F15 F16 - ...
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:55965849
Part#: 11537598865
Ships in 4 Business Days
New Item
$ 79.99 USD
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$ 79.99 USD
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A malfunctioning or lazy thermostat can lead to poor fuel trim efficiency, sluggish performance, and destructive overheating. This Rein thermostat assembly is engineered as a robust direct replacement for your worn factory unit, ensuring proper coolant regulation through the radiator under heavy loads.
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Rein Auxiliary Water Pump - E70 X5
Rein Auxiliary Water Pump - E70 X5
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:58782361
Part#: 64119197085
Ships in 4 Business Days
New Item
$ 94.99 USD
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$ 94.99 USD
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Engineered as a direct replacement for failure prone original equipment secondary pumps, this electric water pump ensures steady hot fluid delivery to the heater core regardless of engine RPM. Built with high quality internal bearings, durable motor windings, and high grade composite housings, it withstands continuous thermal cycling and prevents internal electrical failures.
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Engine Oil Cooler
Engine Oil Cooler
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:56977973
Part#: 11428510856
Ships in 2 Business Days
New Item
$ 83.99 USD
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$ 83.99 USD
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Maintain stable oil temperatures and safeguard your BMW's powertrain with this replacement oil cooler from URO Parts.
O-Ring And Gasket Kit
O-Ring And Gasket Kit
Genuine BMW - Corporate Logo
T#:55245812
Part#: 17227800XKT
Ships in 1-2 days
New Item
$ 24.21 USD
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$ 24.21 USD
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This Maintenance Seal Kit bundles two high-failure items that should always be replaced anytime the engine oil cooler lines or oil level sensor are disturbed.
Meyle Coolant Pump Thermostat - 87 Degrees - BMW N47 N57
Meyle Coolant Pump Thermostat - 87 Degrees - BMW N47 N57
5X Entries Into Our F80 M3 Sweepstakes
Meyle - Corporate Logo
T#:55497457
Part#: 3282280010
Ships in 6 Business Days
New Item
$ 35.99

This product was last offered at the strikethrough price on
06-30-2026

$ 16.99 USD
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$ 16.99 USD
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Keep your engine operating in its powerband and prevent performance-robbing heat soak with this replacement coolant thermostat from Meyle. A failing or sticky thermostat can ruin a track day or spirited drive, making a fresh, high-quality replacement essential for keeping your cooling system performing at its peak under heavy load. Engineered for crisp, reliable valve activation, it ensures your cooling system sheds heat efficiently when you are pushing your vehicle to its limits.
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Coolant Expansion Tank Cap
Coolant Expansion Tank Cap
Febi - Corporate Logo
T#:56001934
Part#: 46221
Special Order: No Guaranteed ETA
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$ 19.99 USD
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$ 19.99 USD
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This Febi Bilstein coolant expansion tank cap is designed to maintain the exact 1.4 bar pressure required to maximize your coolant's boiling point.
Bolt For Water Pump
Bolt For Water Pump
Febi - Corporate Logo
T#:56724732
Part#: 11517602123
Special Order: No Guaranteed ETA
New Item
$ 2.99 USD
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$ 2.99 USD
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This Febi Bilstein water pump screw offers superior durability designed to maintain consistent clamping pressure under high thermal loads.
Coolant Thermostat
Coolant Thermostat
Febi - Corporate Logo
T#:55857769
Part#: 11537598865
Special Order: No Guaranteed ETA
New Item
$ 68.99 USD
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$ 68.99 USD
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This replacement thermostat from Febi Bilstein ensures your cooling system regulates precisely at the proper factory temperature parameters.

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