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BMW Cooling Expansion Tank Parts

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Expansion Tank Hose

ES#3235345 - 17111723521 - Expansion Tank Hose - Connects the expansion tank to the radiator - Gates - BMW

Connects the expansion tank to the radiator

Brand:
Gates - Corporate Logo
ES#:
3235345
Mfg#:
17111723521
Ships on Aug 10, 2026
$19.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Sealing O-Ring

ES#38540 - 17211712965 - Expansion Tank Sealing O-Ring - Seals the expansion tank to the base of the radiator - Genuine BMW - BMW

Seals the expansion tank to the base of the radiator

Brand:
Genuine BMW - Corporate Logo
ES#:
38540
Mfg#:
17211712965
In Stock
17% off MSRP

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

$5.99

This product was last offered at the strikethrough price on
05-22-2026

$4.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank Mounting Bracket

ES#69447 - 41142232123 - Coolant Expansion Tank Mounting Bracket - For E34 M5 - Genuine BMW - BMW

For E34 M5

Brand:
Genuine BMW - Corporate Logo
ES#:
69447
Mfg#:
41142232123
Ships in 10 Business Days
$18.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Overflow Hose

ES#38246 - 17121719316 - Expansion Tank Overflow Hose - Hose for the expansion tank to the radiator - 5x8x880mm - Genuine BMW - BMW

Hose for the expansion tank to the radiator - 5x8x880mm

Brand:
Genuine BMW - Corporate Logo
ES#:
38246
Mfg#:
17121719316
Ships in 10 Business Days
$18.99 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 4 Business Days
$17.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cable Clip - Priced each

ES#159278 - 61102492990 - Cable Clip - Priced each - See MOQKT - Genuine BMW - BMW

See MOQKT

Brand:
Genuine BMW - Corporate Logo
ES#:
159278
Mfg#:
61102492990
Ships in 3 Business Days
$2.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

E34 Expansion Tank Vent Hose

ES#37810 - 17111712356 - E34 Expansion Tank Vent Hose - Replace your leaking expansion tank hose - Genuine BMW - BMW

Replace your leaking expansion tank hose

Brand:
Genuine BMW - Corporate Logo
ES#:
37810
Mfg#:
17111712356
Ships in 4 Business Days
$16.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Level Sensor

ES#1599539 - 61318360855 - Coolant Level Sensor - Monitors the coolant level in the expansion tank - Vemo - BMW

Monitors the coolant level in the expansion tank For vehicles with production date from 06/1995

Brand:
Vemo - Corporate Logo
ES#:
1599539
Mfg#:
61318360855
Special Order: No Guaranteed ETA
$16.99 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 30, 2026
$16.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Level Sensor

ES#2816042 - 61318360876 - Coolant Level Sensor - Monitors the coolant level in the expansion tank - Hamburg Tech - BMW

Monitors the coolant level in the expansion tank We Price Match - Give Us A Call or Chat!
For vehicles with production date from 09/1998

Brand:
Hamburg Tech - Corporate Logo
ES#:
2816042
Mfg#:
61318360876
Ships in 2 Business Days
$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 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 4 Business Days
$14.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Hose

ES#37956 - 17112225399 - Expansion Tank Hose - Replace your leaking expansion tank hose today - Genuine BMW - BMW

Replace your leaking expansion tank hose today

Brand:
Genuine BMW - Corporate Logo
ES#:
37956
Mfg#:
17112225399
Ships in 6 Business Days
$14.99 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.

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

$15.99

This product was last offered at the strikethrough price on
07-21-2026

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

Coolant Level Sensor

ES#2816040 - 61318360855 - Coolant Level Sensor - Monitors the coolant level in the expansion tank - Hamburg Tech - BMW

Monitors the coolant level in the expansion tank We Price Match - Give Us A Call or Chat!
For vehicles with production date up to 09/1998

Brand:
Hamburg Tech - Corporate Logo
ES#:
2816040
Mfg#:
61318360855
Ships in 2 Business Days
$14.15 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

E83 Expansion Tank Clamp

ES#38479 - 17132248252 - E83 Expansion Tank Clamp - Found on the lower portion of the expansion tank - Genuine BMW - BMW

Found on the lower portion of the expansion tank

Brand:
Genuine BMW - Corporate Logo
ES#:
38479
Mfg#:
17132248252
Ships in 6 Business Days
$11.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Sealing O-Ring - Priced Each

ES#37847 - 17111712966 - Sealing O-Ring - Priced Each - 14.5mm O-ring that seals cap to tank - Genuine BMW - BMW

14.5mm O-ring that seals cap to tank

Brand:
Genuine BMW - Corporate Logo
ES#:
37847
Mfg#:
17111712966
In Stock
ON SALE! SAVE 23%
$4.99

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

$3.82 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.

Other BMW Cooling Expansion Tank Parts

Let us help you find the parts that fit your BMW

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