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BMW E91 328xi N52 3.0L

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BMW E91 328xi N52 3.0L Cooling Expansion Tank Parts

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Coolant Expansion Tank Cap

ES#2874171 - 17117639020 - Coolant Expansion Tank Cap - Keep that coolant expansion tank sealed - Febi - BMW

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

Brand:
Febi - Corporate Logo
ES#:
2874171
Mfg#:
17117639020
In Stock
$16.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

2 Pin Connector

ES#4772597 - 61132359999 - 2 Pin Connector - Includes connector housing with terminals and seals. Commonly used for the coolant level sensor. - ECS - BMW MINI

Includes connector housing with terminals and seals. Commonly used for the coolant level sensor. 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4772597
Mfg#:
61132359999
Ships in 5 Business Days
ON SALE! SAVE 25%
$10.99

This product was last offered at the strikethrough price on
06-13-2026

$8.24 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank Cap

ES#4840141 - 17117639020 - Coolant Expansion Tank Cap - Keep that coolant expansion tank sealed - Hamburg Tech - BMW

Keep that coolant expansion tank sealed We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
4840141
Mfg#:
17117639020
In Stock
$13.75 USD
Free Shipping
on orders $49 and up

Fluid Level Sensor

ES#260195 - 17137524812 - Fluid Level Sensor - This sensor is used in multiple locations, depending on model: coolant level, washer level, and power steering level - URO - BMW MINI

This sensor is used in multiple locations, depending on model: coolant level, washer level, and power steering level 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
260195
Mfg#:
17137524812
In Stock
$10.59 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

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 6 Business Days
$78.99 USD
Free Shipping
on orders $49 and up
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 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

Coolant Expansion Tank

ES#2586401 - 17137607482 - Coolant Expansion Tank - Includes level sensor - Vaico - BMW

Includes level sensor We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
2586401
Mfg#:
17137607482
In Stock at Vendor
$152.99

This product was last offered at the strikethrough price on
05-07-2026

$148.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

MMX 90mm Billet Coolant Expansion Tank Cap | BMW

Dress Up Your BMW's Engine Bay With MMX's Billet Expansion Tank Cap!

Brand:
MMX Performance - Corporate Logo
ES#:
4809889
Mfg#:
MMR03-1502
Ships in 2 Business Days
$127.99 USD
Free Shipping
on orders $49 and up

Fluid Level Sensor

ES#3673297 - 17137553919 - Fluid Level Sensor - This sensor is used in multiple locations, depending on model: coolant level, washer level, and power steering level - JL Germany - BMW

This sensor is used in multiple locations, depending on model: coolant level, washer level, and power steering level

Brand:
JL Germany
ES#:
3673297
Mfg#:
17137553919
In Stock
ON SALE!
$14.99

This product was last offered at the strikethrough price on
07-14-2026

$14.54 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank Cap

ES#2801130 - 17117639020 - Coolant Expansion Tank Cap - Keep that coolant expansion tank sealed - Meistersatz - BMW

Keep that coolant expansion tank sealed

Brand:
Meistersatz - Corporate Logo
ES#:
2801130
Mfg#:
17117639020
Ships in 3 Business Days
$17.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank Cap

ES#4328152 - 17117639020 - Coolant Expansion Tank Cap - Keep that coolant expansion tank sealed - Meyle - BMW

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

Brand:
Meyle - Corporate Logo
ES#:
4328152
Mfg#:
17117639020
Ships on Nov 27, 2026
$16.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Black Engine Coolant Reservoir Cap

ES#4882996 - 201-0393-BLK - Black 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#:
4882996
Mfg#:
201-0393-BLK
Ships in 9 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

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.

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Manufacturer names and/or part numbers are used only for identification purposes.

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