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: 8683456-1, 30760100-5, 86834561, 307601005
  • Strengthened and redesigned in the vulnerable areas of failure
  • Plastic construction
  • Commonly called "Coolant Overflow Tank or Reservoir, or Expansion Tank" by Volvo
  • Does not include Cap
    • Buyer will need to reuse old 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 - www.P65Warnings.ca.gov.

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.

There are no reviews for this item. Write Review
Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 1 question Browse 1 question and 5 answers
I can't tell from from the picture,but does this have 2 inlets on top?
Bryant J on Nov 24, 2015
BEST ANSWER: Yes it does. One hose connection and a fill port on top. It fit my 2004 volvo xc90 perfectly.

Vehicle Fit

Year Make Model Description
2001Volvo S80 Volvo S80 (From VIN 185038) Radiator Overflow Bottle L6 2.9L Turbo
2002-2006Volvo S80 Volvo S80 Radiator Overflow Bottle L6 2.9L Turbo
2003-2005Volvo XC90 Volvo XC90 Radiator Overflow Bottle L6 2.9L
2005-2014Volvo XC90 Volvo XC90 Radiator Overflow Bottle L6 3.2L
2007-2011Volvo XC90 Volvo XC90 Radiator Overflow Bottle V8 4.4L

This part replaces:

  • OE # 86834561
  • OE # 307601005
Part #: 1AROB00076

Order must be placed by 4pm ET

Get it in: 2 - 4 Business Days

Want it sooner? Choose Next Day Air at Checkout