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Vehicle Fit

Our coolant overflow bottles are some of the highest quality replacements on the market!

This radiator coolant overflow tank has been designed to replace the original design.


  • Direct replacement for originals that are cracked or broken
  • Replaces dealer part numbers: 17 13 7 542 986, 17137542986
  • Strengthened and redesigned in the vulnerable areas of failure
  • Plastic construction
  • Commonly called "Coolant Overflow Tank" or "Reservoir"
  • Does NOT include the Cap
    • Buyer will need to reuse original cap

Now you can buy a high quality coolant reservoir that is built to strict quality control standards. REPLACE your broken or cracked one now with this great fitting Radiator Overflow Bottle.

Item Condition: New

WARNING: Cancer and Reproductive Harm -

Lifetime Warranty

This item is backed by a Limited Lifetime Warranty. In the event this item should fail due to manufacturing defects during intended use, we will exchange the part free of charge (excludes shipping charges) for the original purchaser.

5.00/ 5.0
3 reviews
5 Stars
4 Stars
3 Stars
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1 Star
Radiator overflow bottle
A1auto is one of the best on line stores , I would recommend its to anybody ..
March 14, 2017
easy relacement
Easy replacement with this replica that looks better than original
January 3, 2018
BMW 525i 2004
this worked out perfect and was great quality thank you so much!!! Great price as well
February 5, 2018
Will this fit my car? Add a vehicle to make sure
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Year Make Model Description
2004-2007BMW 525i BMW 525i Radiator Overflow Bottle
2006-2007BMW 525xi BMW 525xi Radiator Overflow Bottle
2008-2010BMW 528i BMW 528i Radiator Overflow Bottle
2009-2010BMW 528i xDrive BMW 528i xDrive Radiator Overflow Bottle
2008BMW 528xi BMW 528xi Radiator Overflow Bottle
2004-2007BMW 530i BMW 530i Radiator Overflow Bottle
2006-2007BMW 530xi BMW 530xi Radiator Overflow Bottle
2008-2010BMW 535i BMW 535i Radiator Overflow Bottle
2009-2010BMW 535i xDrive BMW 535i xDrive Radiator Overflow Bottle
2008BMW 535xi BMW 535xi Radiator Overflow Bottle
2004-2005BMW 545i BMW 545i Radiator Overflow Bottle
2006-2010BMW 550i BMW 550i Radiator Overflow Bottle
2004-2005BMW 645Ci BMW 645Ci Radiator Overflow Bottle
2006-2010BMW 650i BMW 650i Radiator Overflow Bottle
Part #: 1AROB00144

Order must be placed by 4pm ET

Get it in: 2 - 4 Business Days

Want it sooner? Choose Next Day Air at Checkout