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BMW E30 325i M20 2.5L

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BMW E30 325i M20 2.5L Cooling Expansion Tank Parts

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Expansion Tank Hose

ES#2622976 - 17111723521 - Expansion Tank Hose - Connects the expansion tank to the radiator - Rein - BMW

Connects the expansion tank to the radiator affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
2622976
Mfg#:
17111723521
Ships in 1 Business Day
$16.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank

ES#37766 - 17111707540 - Coolant Expansion Tank - Replace your cracked or faded expansion tank. - Genuine BMW - BMW

Replace your cracked or faded expansion tank. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with production date up to 09/1987

Brand:
Genuine BMW - Corporate Logo
ES#:
37766
Mfg#:
17111707540
In Stock
ON SALE!
$158.99

This product was last offered at the strikethrough price on
06-15-2026

$155.46 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Hose

ES#2802712 - 17121712736 - Expansion Tank Hose - Prevents coolant spills - Rein - BMW

Prevents coolant spills affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
2802712
Mfg#:
17121712736
Ships in 3 Business Days
$13.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Level Sensor

ES#2828539 - 61311384739 - Coolant Level Sensor - Located on the expansion tank - URO - BMW

Located on the expansion tank affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2828539
Mfg#:
61311384739
In Stock
Limited Qty Sale
$13.99

This product was last offered at the strikethrough price on
06-17-2026

$11.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Hose

ES#4900427 - 17121712736 - Expansion Tank Hose - Prevents coolant spills - Bremmen Parts - BMW

Prevents coolant spills affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4900427
Mfg#:
17121712736
In Stock
ON SALE! SAVE 24%
$15.99

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

$12.23 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank

ES#2814073 - 17111712641 - Coolant Expansion Tank - Replace your cracked or faded expansion tank. - Hamburg Tech - BMW

Replace your cracked or faded expansion tank. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
For vehicles with production date from 09/1987

Brand:
Hamburg Tech - Corporate Logo
ES#:
2814073
Mfg#:
17111712641
Ships in 1 Business Day
$79.99 USD
Free Shipping

Expansion Tank Cap

ES#2814085 - 17114379047 - Expansion Tank Cap - 1.2 Bar pressure - Hamburg Tech - BMW

1.2 Bar pressure affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
For vehicles with production date up to 09/1987

Brand:
Hamburg Tech - Corporate Logo
ES#:
2814085
Mfg#:
17114379047
In Stock
$5.70 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Cap

ES#2534586 - 17114379047 - Expansion Tank Cap - 1.2 Bar pressure - URO - BMW

1.2 Bar pressure affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
For vehicles with production date up to 09/1987

Brand:
URO - Corporate Logo
ES#:
2534586
Mfg#:
17114379047
Back Ordered
$7.99 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 2X Entries For Our 25th Anniversary Sweepstakes!
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

Expansion Tank Cap

ES#38066 - 17114379047 - Expansion Tank Cap - 1.2 Bar pressure - Genuine BMW - BMW

1.2 Bar pressure affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with production date up to 09/1987

Brand:
Genuine BMW - Corporate Logo
ES#:
38066
Mfg#:
17114379047
Ships in 3 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.

$47.99

This product was last offered at the strikethrough price on
07-06-2026

$45.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Cap

ES#261723 - 17111742232 - Expansion Tank Cap - 1.4 Bar pressure - Mahle-Behr - BMW

1.4 Bar pressure affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with production date from 09/1987

Brand:
Mahle-Behr - Corporate Logo
ES#:
261723
Mfg#:
17111742232
Ships in 1 Business Day
$18.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Repair Nipple

ES#38232 - 17119055593 - Repair Nipple - For the overflow hose fitting on plastic tank radiators. - Genuine BMW - BMW

For the overflow hose fitting on plastic tank radiators. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
38232
Mfg#:
17119055593
Ships in 5 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.

$15.99

This product was last offered at the strikethrough price on
07-06-2026

$14.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Cap

ES#3493501 - 17137639023 - Expansion Tank Cap - 1.4 Bar pressure - Rein - BMW

1.4 Bar pressure affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
For vehicles with production date from 09/1987

Brand:
Rein - Corporate Logo
ES#:
3493501
Mfg#:
17137639023
Ships in 3 Business Days
$14.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Cap

ES#2091428 - 17111742232 - Expansion Tank Cap - 1.4 Bar pressure - MTC - BMW

1.4 Bar pressure affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with production date from 09/1987

Brand:
MTC - Corporate Logo
ES#:
2091428
Mfg#:
17111742232
Ships in 9 Business Days
$6.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Cap

ES#4328146 - 17111742232 - 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 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Meyle - Corporate Logo
ES#:
4328146
Mfg#:
17111742232
Special Order: No Guaranteed ETA
$10.99 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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