Warranty & Shipping
Product Reviews
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: 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 -

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
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1 Star
It was my first time ordering from A1 but everything was great right on time shipping the product was a perfect fit no problems at all.Im recommending A1 Auto on line to all my family & friends Im about to order something else this week , Im doing all my ordering from A1 its the best.l have ordered from other places in the past but A1 is number 1 for now on thank you A1 great parts at a great price no doubt
October 27, 2018
Will this fit my car? Add a vehicle to make sure
Customer Q&A
Ask a question to 1A Auto customers who purchased the product
I cant tell from from the picture,but does this have 2 inlets on top?
Bryant J November 24, 2015
Yes it does. One hose connection and a fill port on top. It fit my 2004 volvo xc90 perfectly.
Justin C November 24, 2015
It has a refill cap and a hose nipple on top.
Harold S November 24, 2015
yes, it has 2 inlets on top.
Vincent V November 25, 2015
Hello, Yes this has 2 ports on top plus the area for the cap.
Brian F November 25, 2015
does tank come with all required hoses?
John W May 15, 2017
Is it does there are two inlets on top for two hoes to connect
A N October 27, 2018
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
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