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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.


  • Overflow bottle includes cap
  • Direct replacement for originals that are cracked or broken
  • Replaces dealer part number: 12541305
  • Strengthened and redesigned in the vulnerable areas of failure
  • Plastic construction

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

Attention California Customers:

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.

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Year Make Model Description
1988-1989Chevy Blazer S10 Chevy Blazer S10 Radiator Overflow Bottle V6 4.3L
1990-1994Chevy Blazer S10 Chevy Blazer S10 Radiator Overflow Bottle
1988-1993Chevy S10 Pickup Chevy S10 Pickup Radiator Overflow Bottle
1988-1989GMC Jimmy S-15 GMC Jimmy S-15 Radiator Overflow Bottle V6 4.3L
1990-1994GMC Jimmy S-15 GMC Jimmy S-15 Radiator Overflow Bottle
1988-1990GMC S-15 Pickup GMC S-15 Pickup Radiator Overflow Bottle
1991-1993GMC S-15 Sonoma GMC S-15 Sonoma Radiator Overflow Bottle
1991-1994Oldsmobile Bravada Olds Bravada Radiator Overflow Bottle
Part #: 1AROB00088

Order must be placed by 4pm ET

Get it in: 2 - 4 Business Days

Want it sooner? Choose Next Day Air at Checkout