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BMW E36 318i M42 1.8L

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BMW E36 318i M42 1.8L Cooling Expansion Tank Parts

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Expansion Tank Cap

ES#4304653 - 17117639022 - Expansion Tank Cap - Prevent pressure loss and overheating with a new expansion tank cap - Bavarian Autosport - BMW
ECS Tuning recommends this product.

Prevent pressure loss and overheating with a new expansion tank cap affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bavarian Autosport - Corporate Logo
ES#:
4304653
Mfg#:
17117639022
In Stock
ON SALE! SAVE 15%
$13.99

This product was last offered at the strikethrough price on
06-03-2026

$11.89 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Cap

ES#2777575 - 17117639022 - Expansion Tank Cap - Replace worn or missing pieces. - Genuine BMW - BMW

Replace worn or missing pieces. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
2777575
Mfg#:
17117639022
In Stock
21% off MSRP

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

$34.96

This product was last offered at the strikethrough price on
06-05-2026

$27.67 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Cap

ES#3023872 - 17111742231 - Expansion Tank Cap - Replace when performing cooling service. - Mahle-Behr - BMW

Replace when performing cooling service. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Mahle-Behr - Corporate Logo
ES#:
3023872
Mfg#:
17111742231
In Stock
$19.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Black Aluminum Coolant Expansion Tank

ES#2951876 - MMRT-E36-92EBK - Black Aluminum Coolant Expansion Tank - Keep your car cool and prepared for hot conditions and end "spontaneous combustion" of plastic expansion tanks. - Mishimoto - BMW

Keep your car cool and prepared for hot conditions and end "spontaneous combustion" of plastic expansion tanks. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Direct fitment with the Mishimoto fan shroud. Modification may be required with the OEM shroud.

Brand:
Mishimoto - Corporate Logo
ES#:
2951876
Mfg#:
MMRT-E36-92EBK
In Stock at Vendor
$195.99 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. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4772597
Mfg#:
61132359999
Ships on Jul 28, 2026
Auto Notify
ON SALE! SAVE 25%
$10.99

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

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

E36 Expansion Tank

ES#37005 - 16131182156 - E36 Expansion Tank - Genuine BMW - BMW

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
37005
Mfg#:
16131182156
Ships in 7 Business Days
4% off MSRP

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

$342.99

This product was last offered at the strikethrough price on
06-05-2026

$329.00 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 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

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#2918552 - 17111712835 - Coolant Expansion Tank - Does not include cap or coolant level sensor - Mahle-Behr - BMW

Does not include cap or coolant level sensor affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Mahle-Behr - Corporate Logo
ES#:
2918552
Mfg#:
17111712835
Ships in 10 Business Days
$20.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Cap

ES#3672879 - 17117639022 - Expansion Tank Cap - Replace worn or missing pieces. - Meyle - BMW

Replace worn or missing pieces. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Meyle - Corporate Logo
ES#:
3672879
Mfg#:
17117639022
In Stock
ON SALE! SAVE 44%
$15.99

This product was last offered at the strikethrough price on
12-29-2025

$8.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Cap

ES#2874167 - 17111742232 - Expansion Tank Cap - 1.4 Bar pressure - Febi - BMW

1.4 Bar pressure affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2874167
Mfg#:
17111742232
In Stock
$15.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank

ES#37839 - 17111712835 - Coolant Expansion Tank - Does not include cap or coolant level sensor - Genuine BMW - BMW

Does not include cap or coolant level sensor affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
37839
Mfg#:
17111712835
Ships in 1-2 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.

$141.99

This product was last offered at the strikethrough price on
06-05-2026

$133.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Cap

ES#205244 - 17111742231 - Expansion Tank Cap - Replace when performing cooling service. - Rein - BMW
ECS Tuning recommends this product.

Replace when performing cooling service. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
205244
Mfg#:
17111742231
In Stock
$17.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Cap

ES#2187552 - 17111742231 - Expansion Tank Cap - Replace when performing cooling service. - URO - BMW

Replace when performing cooling service. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2187552
Mfg#:
17111742231
In Stock at Vendor
$11.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Cap

ES#2534584 - 17111468077 - Expansion Tank Cap - 1.4 Bar pressure - URO - BMW

1.4 Bar pressure affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2534584
Mfg#:
17111468077
Back Ordered
Auto Notify
$6.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank

ES#3148875 - 17111712835 - Coolant Expansion Tank - Does not include cap or coolant level sensor - Rein - BMW

Does not include cap or coolant level sensor affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
3148875
Mfg#:
17111712835
Ships in 3 Business Days
$23.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Cap

ES#2814079 - 17111742231 - Expansion Tank Cap - Replace worn or missing pieces. - Hamburg Tech - BMW

Replace worn or missing pieces. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
2814079
Mfg#:
17111742231
Ships in 1 Business Day
$9.17 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

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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