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BMW M3 Cooling Expansion Tank Parts

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Coolant Expansion Tank

ES#5488371 - 17132284600 - Coolant Expansion Tank - This direct-replacement from URO Parts restores your cooling system's pressure capabilities and ensures your engine operates at a safe temperature. - URO - BMW

This direct-replacement from URO Parts restores your cooling system's pressure capabilities and ensures your engine operates at a safe temperature. 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
URO - Corporate Logo
ES#:
5488371
Mfg#:
17132284600
Ships in 1 Business Day
$168.99 USD
Free Shipping
on orders $49 and up

Engine Coolant Expansion Tank Cap

ES#4941100 - 17132754264 - Engine Coolant Expansion Tank Cap - Replace the expansion tank cap for your MINI / BMW - Bremmen Parts - BMW MINI

Replace the expansion tank cap for your MINI / BMW 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4941100
Mfg#:
17132754264
Ships on Sep 28, 2026
Auto Notify
ON SALE! SAVE 14%
$6.99

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

$5.99 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 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2874167
Mfg#:
17111742232
In Stock
$24.99

This product was last offered at the strikethrough price on
06-18-2026

$15.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Hose

ES#37897 - 17111723521 - Expansion Tank Hose - Connects the expansion tank to the radiator - Genuine BMW - BMW

Connects the expansion tank to the radiator

Brand:
Genuine BMW - Corporate Logo
ES#:
37897
Mfg#:
17111723521
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.

$26.99

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

$25.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Carbon Coolant Expansion Tank Cap Cover (Gloss Carbon)

ES#4900217 - BM-0803-GC - Carbon Coolant Expansion Tank Cap Cover (Gloss Carbon) - Upgrade to AutoTecknics Pre-Preg Carbon Fiber Coolant Expansion Tank Cap Cover and give your BMW the exclusive, high-performance look it deserves. - AUTOTECKNIC - BMW

Upgrade to AutoTecknic’s Pre-Preg Carbon Fiber Coolant Expansion Tank Cap Cover and give your BMW the exclusive, high-performance look it deserves.

Brand:
AUTOTECKNIC - Corporate Logo
ES#:
4900217
Mfg#:
BM-0803-GC
Ships in 7 Business Days
$74.99 USD
Free Shipping
on orders $49 and up

Radiator To Expansion Tank Hose - 1 Meter

ES#37639 - 17111150232 - Radiator To Expansion Tank Hose - 1 Meter - Runs from the radiator to the expansion tank - Genuine BMW - BMW

Runs from the radiator to the expansion tank

Brand:
Genuine BMW - Corporate Logo
ES#:
37639
Mfg#:
17111150232
Ships in 3 Business Days
$14.99 USD
Free Shipping
on orders $49 and up
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

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. 2X Entries For Our 25th Anniversary Sweepstakes!
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

Coolant Expansion Tank

ES#4875596 - 17138093924 - Coolant Expansion Tank - Replace your cracked or faded tank - URO - BMW

Replace your cracked or faded tank 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
4875596
Mfg#:
17138093924
Ships in 1 Business Day
$116.99 USD
Free Shipping
on orders $49 and up

Expansion Tank Hose

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

Prevents coolant spills 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
2802712
Mfg#:
17121712736
In Stock
$13.99 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 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 Level Sensor

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

Located on the expansion tank 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
For vehicles with production date up to 06/1995

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

Silver Auxiliary Coolant Reservoir Cap

ES#4882956 - 201-0394-SIL - Silver Auxiliary 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#:
4882956
Mfg#:
201-0394-SIL
Ships in 7 Business Days
$99.99

This product was last offered at the strikethrough price on
01-22-2026

$94.99 USD
Free Shipping
on orders $49 and up

Blue Auxiliary Coolant Reservoir Cap

ES#4882951 - 201-0394-BLU - Blue Auxiliary 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#:
4882951
Mfg#:
201-0394-BLU
Ships in 9 Business Days
$99.99

This product was last offered at the strikethrough price on
01-22-2026

$94.99 USD
Free Shipping
on orders $49 and up

Coolant Level Sensor

ES#166702 - 61311384739 - Coolant Level Sensor - Located on the expansion tank - Genuine BMW - BMW

Located on the expansion tank For vehicles with production date up to 06/1995

Brand:
Genuine BMW - Corporate Logo
ES#:
166702
Mfg#:
61311384739
Ships in 5 Business Days
2% off MSRP

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

$92.99

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

$90.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Coolant Level Sensor

ES#2795984 - 61318360855 - Coolant Level Sensor - Monitors the coolant level in the expansion tank - URO - BMW

Monitors the coolant level in the expansion tank 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2795984
Mfg#:
61318360855
Ships in 1 Business Day
ON SALE!
$12.99

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

$12.34 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.

Let us help you find the parts that fit your BMW

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