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BMW E70 Cooling Expansion Tank Parts

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Coolant Expansion Tank Cap

ES#2550027 - 17117521071 - Coolant Expansion Tank Cap - Keep that coolant expansion tank sealed - URO - BMW

Keep that coolant expansion tank sealed 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2550027
Mfg#:
17117521071
In Stock
$18.99

This product was last offered at the strikethrough price on
03-09-2026

$14.49 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Billet Coolant Reservoir Cap - Anodized Clear

ES#4505865 - CO0LANTCAPRAW - Billet Coolant Reservoir Cap - Anodized Clear - Upgrade the visual appeal of your engine bay with Vargas Turbo Technologies' Billet Caps! - Vargas Turbo Technologies - BMW

Upgrade the visual appeal of your engine bay with Vargas Turbo Technologies' Billet Caps! 2X Entries For Our 25th Anniversary Sweepstakes!
This coolant cap retains ALL of the factory provisions by simply allowing you to snap the factory pressure-relief into the new Billet Cap

Brand:
Vargas Turbo Technologies - Corporate Logo
ES#:
4505865
Mfg#:
CO0LANTCAPRAW
Ships in 7 Business Days
$78.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Intercooler Expansion Tank

ES#2720067 - 17137647281 - Intercooler Expansion Tank - Stop your coolant leak with a new expansion tank - Genuine BMW - BMW

Stop your coolant leak with a new expansion tank

Brand:
Genuine BMW - Corporate Logo
ES#:
2720067
Mfg#:
17137647281
Ships in 3 Business Days
6% off MSRP

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

$162.99

This product was last offered at the strikethrough price on
07-18-2026

$152.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Blue Engine Coolant Reservoir Cap

ES#4883000 - 201-0393-BLU - Blue Engine Coolant Reservoir Cap - Functional and stunningly stylish way to add a nice touch to any engine bay! - Precision Raceworks - BMW

Functional and stunningly stylish way to add a nice touch to any engine bay!

Brand:
Precision Raceworks - Corporate Logo
ES#:
4883000
Mfg#:
201-0393-BLU
In Stock
$115.99

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

$109.99 USD
Free Shipping
on orders $49 and up

Billet Coolant Reservoir Cap - Anodized Black

ES#4505863 - CO0LANTCAPBLK - Billet Coolant Reservoir Cap - Anodized Black - Upgrade the visual appeal of your engine bay with Vargas Turbo Technologies' Billet Caps! - Vargas Turbo Technologies - BMW

Upgrade the visual appeal of your engine bay with Vargas Turbo Technologies' Billet Caps! 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Vargas Turbo Technologies - Corporate Logo
ES#:
4505863
Mfg#:
CO0LANTCAPBLK
Back Ordered
Auto Notify
$79.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Silver Engine Coolant Reservoir Cap

ES#4883004 - 201-0393-SIL - Silver Engine Coolant Reservoir Cap - Functional and stunningly stylish way to add a nice touch to any engine bay! - Precision Raceworks - BMW

Functional and stunningly stylish way to add a nice touch to any engine bay!

Brand:
Precision Raceworks - Corporate Logo
ES#:
4883004
Mfg#:
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
Free Shipping
on orders $49 and up

Expansion Tank Cap

ES#2996946 - 17117639021 - Expansion Tank Cap - Cap for plastic expansion tank - Rein - BMW

Cap for plastic expansion tank 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
2996946
Mfg#:
17117639021
In Stock
$16.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Grommet

ES#177738 - 64126910076 - Expansion Tank Grommet - Used in the expansion tank - Genuine BMW - BMW MINI

Used in the expansion tank

Brand:
Genuine BMW - Corporate Logo
ES#:
177738
Mfg#:
64126910076
In Stock
$6.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

E70 Coolant Expansion Tank

ES#3230758 - 17138621092 - E70 Coolant Expansion Tank - Replace your cracked or faded tank - Rein - BMW

Replace your cracked or faded tank 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
3230758
Mfg#:
17138621092
Ships in 1 Business Day
$100.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

E70 Coolant Expansion Tank

ES#4017647 - 17137552546 - E70 Coolant Expansion Tank - Replace your cracked or faded tank - URO - BMW

Replace your cracked or faded tank 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
4017647
Mfg#:
17137552546
Ships in 1 Business Day
$70.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank

ES#1305029 - 17137589526 - Expansion Tank - Genuine BMW - BMW

Brand:
Genuine BMW - Corporate Logo
ES#:
1305029
Mfg#:
17137589526
Ships in 6 Business Days
6% off MSRP

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

$202.99

This product was last offered at the strikethrough price on
07-18-2026

$190.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Intercooler Expansion Tank

ES#4001855 - 17137647281 - Intercooler Expansion Tank - Stop your coolant leak with a new expansion tank - URO - BMW

Stop your coolant leak with a new expansion tank 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
4001855
Mfg#:
17137647281
Back Ordered
$59.99 USD
Free Shipping
on orders $49 and up

E70 Coolant Line

ES#3219179 - 17127536235 - E70 Coolant Line - Connects to the bottom of the expansion tank - Rein - BMW

Connects to the bottom of the expansion tank 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
3219179
Mfg#:
17127536235
Ships in 1 Business Day
ON SALE!
$30.99

This product was last offered at the strikethrough price on
06-25-2026

$29.44 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Engine Coolant Expansion Tank Cap

ES#4941100 - 17132754264 - Engine Coolant Expansion Tank Cap - Replace the expansion tank cap for your MINI / BMW - Bremmen Parts - BMW MINI

Replace the expansion tank cap for your MINI / BMW 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4941100
Mfg#:
17132754264
Ships on Sep 28, 2026
Auto Notify
ON SALE! SAVE 14%
$6.99

This product was last offered at the strikethrough price on
05-02-2026

$5.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Carbon Coolant Expansion Tank Cap Cover (Gloss Carbon)

ES#4900217 - BM-0803-GC - Carbon Coolant Expansion Tank Cap Cover (Gloss Carbon) - Upgrade to AutoTecknics Pre-Preg Carbon Fiber Coolant Expansion Tank Cap Cover and give your BMW the exclusive, high-performance look it deserves. - AUTOTECKNIC - BMW

Upgrade to AutoTecknic’s Pre-Preg Carbon Fiber Coolant Expansion Tank Cap Cover and give your BMW the exclusive, high-performance look it deserves.

Brand:
AUTOTECKNIC - Corporate Logo
ES#:
4900217
Mfg#:
BM-0803-GC
Ships in 7 Business Days
$74.99 USD
Free Shipping
on orders $49 and up

Intercooler Expansion Tank

ES#3464969 - 17137647281 - Intercooler Expansion Tank - Stop your coolant leak with a new expansion tank - Rein - BMW

Stop your coolant leak with a new expansion tank 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
3464969
Mfg#:
17137647281
Ships in 3 Business Days
$71.99 USD
Free Shipping
on orders $49 and up

More About Cooling Expansion Tank Parts

A common source of overheating problems is a broken or leaking coolant expansion tank. Replace it with an OEM coolant expansion tank or quality aftermarket expansion tank to prevent future woes.

Let us help you find the parts that fit your BMW

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