BMW Coolant Expansion Tanks for BMW 6 Series F12 (2012+)

Clear BMW chassis

Please ensure your correct model is selected

On certain models, namely E36, E46, and E90, the factory BMW expansion tank is prone to either breaking at connection points or blowing apart altogether. If you're starting to feel like your expansion tank is on borrowed time, it's probably time to replace with either a direct OE replacement, or strengthen your cooling setup with an aluminum expansion tank - we offer numerous performance upgrades for your expansion tank. Especially if you're someone who likes to track your BMW, we recommend upgrading your expansion tank to avoid ruining your track day.
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
Goldenwrench Supply Co - Corporate Logo
T#:641287
Part#: FXXCCT-R
In Stock
$ 52.00 USD
Free Shipping on orders $49 and up
Give the plain plastic factory coolant caps an upgrade with the brand new BLACKLINE Performance Charge Cooler 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 Charge Cooler Reservoir Cap Cover will fit most BMW vehicles equipped with the S55 and S63 engines with the charge cooler reservoir tank found in the following vehicles: F87 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 Charge Cooler 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
Goldenwrench Supply Co - Corporate Logo
T#:5691129
Part#: FXXCET-B
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 blue 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 a variety of M vehicles(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

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

Goldenwrench Supply Co - Corporate Logo
T#:641290
Part#: FXXCCT
In Stock
$ 52.00 USD
Free Shipping on orders $49 and up
Give the plain plastic factory coolant caps an upgrade with the brand new BLACKLINE Performance Charge Cooler 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 Charge Cooler Reservoir Cap Cover will fit most BMW vehicles equipped with the S55 and S63 engines with the charge cooler reservoir tank found in the following vehicles: F87 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 Charge Cooler 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
Goldenwrench Supply Co - Corporate Logo
T#:5691131
Part#: FXXCCT-B
In Stock
$ 52.00 USD
Free Shipping on orders $49 and up
Give the plain plastic factory coolant caps an upgrade with the brand new BLACKLINE Performance Charge Cooler Tank Cap Cover from Goldenwrench. Each cap is CNC formed from T6 Aluminum and anodized in a limited release race inspired blue 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 Charge Cooler Reservoir Cap Cover will fit most BMW vehicles equipped with the S55 and S63 engines with the charge cooler reservoir tank found in a variety of M Vehicles. Check your coolant cap ensuring that it is the same shape as seen in the product photos. Each kit comes with a Billet Charge Cooler 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