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.

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
No questions have been asked about this item. Be the first!

Vehicle Fit

  • 1988-1989 Chevy Blazer S10 Radiator Overflow Bottle V6 4.3L
  • 1990-1994 Chevy Blazer S10 Radiator Overflow Bottle
  • 1988-1993 Chevy S10 Pickup Radiator Overflow Bottle
  • 1988-1989 GMC Jimmy S-15 Radiator Overflow Bottle V6 4.3L
  • 1990-1994 GMC Jimmy S-15 Radiator Overflow Bottle
  • 1988-1990 GMC S-15 Pickup Radiator Overflow Bottle
  • 1991-1993 GMC S-15 Sonoma Radiator Overflow Bottle
  • 1991-1994 Olds Bravada Radiator Overflow Bottle

This part replaces:

  • Partslink GM3014100
  • OE # 12541305
Part #: 1AROB00088