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.

Item Condition: New

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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Vehicle Fit

Year Make Model Description
1984-1991Chevy Van G-Series Chevy Van G-Series Radiator Coolant Overflow Bottle Dorman 603-101
1984-1991GMC Van GMC Van Radiator Coolant Overflow Bottle Dorman 603-101

This part replaces:

  • Dorman 603-101
  • OE # 15595742
Only 3 left in stock
Part #: 1AROB00007

Order must be placed by 4pm ET

Get it in: 2 - 4 Business Days

Want it sooner? Choose Next Day Air at Checkout

Brand #: 603-101