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BMW Coolant Expansion Tank Hoses

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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

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
07-20-2026

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

E38 Coolant Return line

ES#2801323 - 17111737708 - E38 Coolant Return line - From expansion tank to radiator - Rein - BMW

From expansion tank to radiator 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
2801323
Mfg#:
17111737708
Ships in 4 Business Days
$9.17

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

$9.06 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank Hose

ES#5491184 - 17125A09423 - Coolant Expansion Tank Hose - Replacement coolant hose that connects the upper radiator to the expansion tank - Rein - BMW

Replacement coolant hose that connects the upper radiator to the expansion tank 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Rein - Corporate Logo
ES#:
5491184
Mfg#:
17125A09423
Ships in 4 Business Days
$18.99 USD
Free Shipping
on orders $49 and up

Coolant Vent Hose

ES#3499711 - 17127536236 - Coolant Vent Hose - Connects the upper radiator hose to the expansion tank - Rein - BMW

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

Brand:
Rein - Corporate Logo
ES#:
3499711
Mfg#:
17127536236
Ships in 4 Business Days
$27.99 USD
Free Shipping
on orders $49 and up

Expansion Tank Return Hose

ES#3499691 - 17127519258 - Expansion Tank Return Hose - Connects between the top of the radiator and the bottom of the expansion tank - Rein - BMW

Connects between the top of the radiator and 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#:
3499691
Mfg#:
17127519258
Ships in 4 Business Days
$56.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Upgraded Silicone Upper Vent Hose - Black

By utilizing high-grade silicone rather than standard rubber and plastic, VTT offers a hose that stays flexible and robust through countless heat cycles. 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Vargas Turbo Technologies - Corporate Logo
ES#:
5446529
Mfg#:
N54CLVTBLKO
Ships on Aug 5, 2026
$54.99 USD
Free Shipping

Coolant Return line

ES#37919 - 17111737708 - Coolant Return line - From expansion tank to radiator - Genuine BMW - BMW

From expansion tank to radiator

Brand:
Genuine BMW - Corporate Logo
ES#:
37919
Mfg#:
17111737708
Ships in 10 Business Days
3% off MSRP

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

$79.99

This product was last offered at the strikethrough price on
07-20-2026

$77.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

E36 Expansion Tank

ES#37025 - 16131182855 - E36 Expansion Tank - Genuine BMW - BMW

Running Loss

Brand:
Genuine BMW - Corporate Logo
ES#:
37025
Mfg#:
16131182855
Ships in 9 Business Days
3% off MSRP

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

$109.99

This product was last offered at the strikethrough price on
07-20-2026

$106.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Hose

ES#5480651 - 17128570061 - Expansion Tank Hose - Nothing ruins a weekend drive faster than a brittle, leaking cooling hose. If your factory hose has seen better days, this precision-molded coolant recovery tank hose is the perfect weekend DIY fix to restore your cooling system's integrity. - URO - BMW

Nothing ruins a weekend drive faster than a brittle, leaking cooling hose. If your factory hose has seen better days, this precision-molded coolant recovery tank hose is the perfect weekend DIY fix to restore your cooling system's integrity. 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
URO - Corporate Logo
ES#:
5480651
Mfg#:
17128570061
Ships in 9 Business Days
Auto Notify
$26.99 USD

BMW Coolant Flange

ES#4343477 - 17111707817 - BMW Coolant Flange - Connects the radiator to the expansion tank - Febi - BMW

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

Brand:
Febi - Corporate Logo
ES#:
4343477
Mfg#:
17111707817
Special Order: No Guaranteed ETA
$47.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Coolant Hose - Expansion Tank

ES#2881729 - 17127808117 - Coolant Hose - Expansion Tank - Connects the lower expansion tank connection to the transmission heat exchanger - Vaico - BMW

Connects the lower expansion tank connection to the transmission heat exchanger We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
2881729
Mfg#:
17127808117
Special Order: No Guaranteed ETA
$230.99

This product was last offered at the strikethrough price on
04-15-2026

$75.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank Hose

ES#5341131 - 17127535536 - Coolant Expansion Tank Hose - Connects the heat management module to the expansion tank's lower port - Rein - BMW

Connects the heat management module to the expansion tank's lower port 2X Entries For Our 25th Anniversary Sweepstakes!
For Pre-LCI models with the earlier Gen1 B46 engine only

Brand:
Rein - Corporate Logo
ES#:
5341131
Mfg#:
17127535536
Back Ordered
$76.00

This product was last offered at the strikethrough price on
05-13-2026

$73.99 USD
Free Shipping
on orders $49 and up

Coolant Expansion Tank Overflow Hose

ES#5341135 - 17128651298 - Coolant Expansion Tank Overflow Hose - Connects the expansion tank to the upper radiator hose - Rein - BMW

Connects the expansion tank to the upper radiator hose 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Rein - Corporate Logo
ES#:
5341135
Mfg#:
17128651298
Back Ordered
$31.99 USD
Free Shipping
on orders $49 and up

Radiator Expansion Tank Vent Line Hose

ES#4845471 - 17128651450 - Radiator Expansion Tank Vent Line Hose - Upgrade your BMWs cooling system with the Radiator Expansion Tank Vent Line Hose by Rein, ensuring optimal engine performance and protection against overheating. - Rein - BMW

Upgrade your BMW’s cooling system with the Radiator Expansion Tank Vent Line Hose by Rein, ensuring optimal engine performance and protection against overheating. 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
4845471
Mfg#:
17128651450
Back Ordered
$57.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

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