2003-08 Radiator Overflow Bottle Cap Dorman 902-5601 - DMROB00007


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


  • Brand New Dorman Radiator Overflow Bottle Cap
  • Replaces dealer part number: 15075118
  • Plastic construction
  • Direct replacement
  • Built to strict quality control standards

Replace your broken or cracked cap 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.

  1. step : Replacing the Radiator Cap (0:18)
    • Remove the cap when the engine has fully cooled
    • Replace the cap with the correct PSI rating

Tools needed for replacement:

    1A - No Tools Needed

  • No Tools Needed

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Vehicle Fit

Year Make Model Description
2003-2008Chevy C4500 Kodiak Chevy C4500 Kodiak Radiator Overflow Bottle Cap Dorman 902-5601
2003-2008GMC C5500 Topkick GMC C5500 Topkick Radiator Overflow Bottle Cap Dorman 902-5601

This part replaces:

  • Dorman 902-5601
  • OE # 15075118
Only 2 left in stock
Part #: DMROB00007

Order must be placed by 4pm ET

Get it in: 2 - 4 Business Days

Want it sooner? Choose Next Day Air at Checkout

Brand #: 902-5601

How-to Video:

(02:03 min)