Replaces

Radiator Overflow Bottle with Cap Dorman 603-109 - DMROB00025

DORMAN RADIATOR OVERFLOW BOTTLE: 603-109

Our coolant bottles are some of the highest quality replacements on the market! This radiator coolant overflow bottle has been designed to replace the original design.

Specifications:

  • Brand New Dorman Radiator Expansion Tank
  • Includes Cap
  • Plastic construction
  • Direct replacement
  • Built to strict quality control standards

Replace your broken or cracked bottle now with this great fitting part.

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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Browse 1 question Browse 1 question and 1 answer
What is the rubber piece at the bottom of the the tank for I replaced the tank but I am still having low coolant issues?
Anne T on Jul 4, 2018
BEST ANSWER: Hello,
The bottom of the tank may have a valve or some other type of fitting. It is held in with the piece of tape in the picture. Thank you!

Vehicle Fit

  • 1999-2005 Chevy Cavalier Radiator Overflow Bottle with Cap L4 2.2L Dorman 603-109
  • 1999-2002 Chevy Cavalier Radiator Overflow Bottle with Cap L4 2.4L Dorman 603-109
  • 2004-2005 Chevy Classic Radiator Overflow Bottle with Cap L4 2.2L Dorman 603-109
  • 1999-2003 Chevy Malibu Radiator Overflow Bottle with Cap V6 3.1L Dorman 603-109
  • 1999 Chevy Malibu Radiator Overflow Bottle with Cap L4 2.4L Dorman 603-109
  • 2003-2004 Chevy SSR Radiator Overflow Bottle with Cap V8 5.3L Dorman 603-109
  • 2005-2006 Chevy SSR Radiator Overflow Bottle with Cap V8 6.0L Dorman 603-109
  • 1999-2004 Olds Alero Radiator Overflow Bottle with Cap V6 3.4L Dorman 603-109
  • 1999-2001 Olds Alero Radiator Overflow Bottle with Cap L4 2.4L Dorman 603-109
  • 2002-2004 Olds Alero Radiator Overflow Bottle with Cap L4 2.2L Dorman 603-109
  • 1999 Olds Cutlass Radiator Overflow Bottle with Cap V6 3.1L Dorman 603-109
  • 1999-2005 Pontiac Grand Am Radiator Overflow Bottle with Cap V6 3.4L Dorman 603-109
  • 1999-2005 Pontiac Grand Am Radiator Overflow Bottle with Cap L4 2.2L Dorman 603-109
  • 1999-2001 Pontiac Grand Am Radiator Overflow Bottle with Cap L4 2.4L Dorman 603-109
  • 1999-2002 Pontiac Sunfire Radiator Overflow Bottle with Cap L4 2.4L Dorman 603-109
  • 1999-2005 Pontiac Sunfire Radiator Overflow Bottle with Cap L4 2.2L Dorman 603-109

This part replaces:

  • Dorman 603-109
  • OE # 22565474
  • OE # 22712361
Part #: DMROB00025

Out of Stock

Dorman
Brand #: 603-109