BMW Cooling System Parts & Accessories for BMW F85 X5 M S63 4.4L

Clear BMW chassis

Please ensure your correct model is selected

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.

Sub-Categories

Sort By:

Goldenwrench Supply Co - Corporate Logo
T#:641289
Part#: FXXCET-R
In Stock
$ 65.00 USD
Free Shipping
$ 65.00 USD
Free Shipping
Give the plain plastic factory coolant caps an upgrade with the brand new BLACKLINE Performance Coolant Expansion Tank Cap Cover from Goldenwrench. Each cap is CNC formed from T6 Aluminum and anodized in a limited release race inspired red color. All logos and decorations are finalized through a precision 3D milling process, machined into each cap for the ultimate premium finish. The BLACKLINE Performance Billet Coolant Expansion Tank Cap Cover will fit most BMW vehicles equipped with the N55, S55, S63, and S65 engine with the large coolant tank found in the following vehicles E90/E91/E92 M3 LCI, F22 M235i, F87 M2/M2 Competition, F80 M3, F82 M4, F10/F90 M5, and more (check your coolant cap ensuring that it is the same shape as seen in the product photos). Each kit comes with a Billet Coolant Expansion Tank Cap Cover, and an Installation Instruction Card. This is a not a full cap replacement. The Billet Cap Cover affixes to the top of your factory coolant cap installing easily in minutes.
Show More Show Less
Genuine BMW - Corporate Logo
T#:568416
Part#: 11148483799
Ships in 3 Business Days
7% off MSRP $ 86.99

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

$ 80.99 USD
Free Shipping
7% off MSRP
$ 86.99

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

$ 80.99 USD
Free Shipping
Genuine BMW - Corporate Logo
T#:2255
Part#: 11537586885
In Stock
8% off MSRP $ 135.99

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

$ 124.99 USD
Free Shipping
8% off MSRP
$ 135.99

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

$ 124.99 USD
Free Shipping
Don't take chances! Proper maintenance is required to keep your car performing at peak levels. The thermostat basically controls when your car will overheat. Don't let it fail on you.

Goldenwrench Supply Co - Corporate Logo
T#:641288
Part#: FXXCET
In Stock
$ 65.00 USD
Free Shipping
$ 65.00 USD
Free Shipping
Give the plain plastic factory coolant caps an upgrade with the brand new BLACKLINE Performance Coolant Expansion Tank Cap Cover from Goldenwrench. Each cap is CNC formed from T6 Aluminum and anodized with an Anthracite Gray color to compliment the factory engine cover. All logos and decorations are finalized through a precision 3D milling process, machined into each cap for the ultimate premium finish. The BLACKLINE Performance Billet Coolant Expansion Tank Cap Cover will fit most BMW vehicles equipped with the N55, S55, S63, and S65 engine with the large coolant tank found in the following vehicles E90/E91/E92 M3 LCI, F22 M235i, F87 M2/M2 Competition, F80 M3, F82 M4, F10/F90 M5, and more (check your coolant cap ensuring that it is the same shape as seen in the product photos). Each kit comes with a Billet Coolant Expansion Tank Cap Cover, and an Installation Instruction Card. This is a not a full cap replacement. The Billet Cap Cover affixes to the top of your factory coolant cap installing easily in minutes.
Show More Show Less

Genuine BMW - Corporate Logo
T#:58577
Part#: 32427564649
In Stock
8% off MSRP $ 82.99

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

$ 75.99 USD
Free Shipping
8% off MSRP
$ 82.99

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

$ 75.99 USD
Free Shipping


Genuine BMW Deflection Pulley -
This item fits the following BMW Chassis:
F06,F10,F12,F13,F15,F16

Genuine BMW - Corporate Logo
T#:217490
Part#: 17138621092
In Stock
Sale - Save 8% $ 222.99

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

$ 205.91 USD
Free Shipping
Sale - Save 8%
$ 222.99

This product was last offered at the strikethrough price on
08-26-2026

$ 205.91 USD
Free Shipping


Genuine BMW Expansion Tank -

This item fits the following BMW Chassis:
E70,E71,F15,F16,

This item fits the following BMW Engines:
N63,N63N,S63,N62N

Show More Show Less

Genuine BMW - Corporate Logo
T#:150533
Part#: 64119230233
In Stock
Sale - Save 10% $ 192.99

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

$ 173.99 USD
Limited Qty Sale
Free Shipping
Sale - Save 10%
$ 192.99

This product was last offered at the strikethrough price on
08-07-2026

$ 173.99 USD
Limited Qty Sale
Free Shipping


Genuine BMW Auxiliary Water Pump
This item fits the following BMW Chassis:
E70 X5M,E71 X6M,E70 X5,E71 X6,F15,F16

Genuine BMW - Corporate Logo
T#:386571
Part#: 11142446298
Ships in 3 Business Days
6% off MSRP $ 645.99

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

$ 605.99 USD
Free Shipping
6% off MSRP
$ 645.99

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

$ 605.99 USD
Free Shipping
Billet aluminum housing, integrated Viton seal, and additional sealed surfaces to encapsulate the leaking engine oil galley plug.

Genuine BMW - Corporate Logo
T#:35680
Part#: 11517566335
Ships in 3 Business Days
8% off MSRP $ 455.99

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

$ 417.99 USD
Free Shipping
8% off MSRP
$ 455.99

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

$ 417.99 USD
Free Shipping


Genuine BMW Auxiliary Water Pump
This item fits the following BMW Chassis:
E70 X5M,E71 X6M,E70 X5 X5,E71 X6,F01,F02,F06,F10,F12,F13,F15,F16

Fits BMW Engines including:
N63,N63N,S63

Show More Show Less

Genuine BMW - Corporate Logo
T#:24644
Part#: 64116910544
Ships in 3 Business Days
4% off MSRP $ 403.99

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

$ 385.99 USD
Free Shipping
4% off MSRP
$ 403.99

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

$ 385.99 USD
Free Shipping


Genuine BMW Water Valve
This item fits the following BMW Chassis:
E70 X5M,E71 X6M,E53 48IS,E53 X5,E70 X5,E71 X6,F15,F16

Genuine BMW - Corporate Logo
T#:217251
Part#: 51748056320
Ships Today
4% off MSRP $ 133.99

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

$ 127.99 USD
Free Shipping
4% off MSRP
$ 133.99

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

$ 127.99 USD
Free Shipping
Genuine Bmw Air Duct, Exterior Radiator, - 51748056320
Genuine BMW - Corporate Logo
T#:549962
Part#: 17127849685
Ships in 4 Business Days
6% off MSRP $ 126.99

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

$ 118.99 USD
Free Shipping
6% off MSRP
$ 126.99

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

$ 118.99 USD
Free Shipping


Genuine BMW - Corporate Logo
T#:530005
Part#: 17117849683
Ships in 3 Business Days
4% off MSRP $ 108.99

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

$ 104.99 USD
Free Shipping
4% off MSRP
$ 108.99

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

$ 104.99 USD
Free Shipping
Genuine BMW - Corporate Logo
T#:547750
Part#: 11288699873
Ships in 3 Business Days
4% off MSRP $ 165.99

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

$ 158.99 USD
Free Shipping
4% off MSRP
$ 165.99

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

$ 158.99 USD
Free Shipping