1984-91 Chevy Van G-Series GMC Van Radiator Coolant Overflow Bottle Dorman 603-101 - 1AROB00007

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

This GMC or Chevy Van radiator coolant overflow bottle has been designed to replace the original GM design.


  • Direct replacement for originals that are cracked or broken
  • Strengthened and redesigned in the vulnerable areas of failure
  • Plastic construction
  • Comes with correct 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 GMC or Chevy Van 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. Please keep your invoice for proof of this warranty.

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Vehicle Fit

  • 1984-1991 Chevy Van G-Series Radiator Coolant Overflow Bottle Dorman 603-101
  • 1984-1991 GMC Van Radiator Coolant Overflow Bottle Dorman 603-101
Only 2 left in stock
Part #: 1AROB00007

Ships Same Day for orders placed by 4 P.M. ET

Brand #: 603-101

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