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Heating and Cooling› Overflow Tanks and Catch Cans

BMW

Coolant Expansion Tank

$127.36 $59.99 Save $67.37

SKU: 17117573781

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

Easy — 1–2 hours

Description

The Behr Coolant Expansion Tank is an OEM replacement for aged or damaged coolant reservoirs. It is designed for various BMW models including E46, E83 X3, and E53 X5 3.0 liter. The cap and sensor are sold separately.

Fitment

Fitment Guaranteed

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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
Part Number17117573781
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.

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