Heating and Cooling› Overflow Tanks and Catch Cans

BMW/Aftermarket

Expansion Tank Retainer

$15.99

SKU: 17111436251

In Stock
In Stock
Ships by Jul 29
Free Shipping
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

The BMW expansion tank retainer is a genuine part made in Germany. This retainer is a common replacement part for high-mileage BMW vehicles, particularly when performing a cooling system overhaul. It includes a sealing o-ring that goes into the radiator.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandBMW/Aftermarket
Part Number17111436251
CategoryHeating and Cooling

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy