Replaces

Radiator Overflow Bottle with Cap Dorman 603-703 - 1AROB00036

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DORMAN 603-703 [COOLANT RESERVOIR]

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.

Specifications:

  • Direct replacement for originals that are cracked or broken
  • Replaces dealer part numbers: 8D0121403L, 3B0121321, 8D0 121 403 L, 3B0 121 321
  • Strengthened and redesigned in the vulnerable areas of failure
  • Plastic construction
  • Commonly called "Coolant Overflow Tank or Reservoir" by Audi & Volkswagen
  • Cap included

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.

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Year Make Model Description
1998Audi A4 Audi A4 Radiator Overflow Bottle with Cap V6 2.8L (From VIN W007800) Dorman 603-703
1998Audi A4 Audi A4 Radiator Overflow Bottle with Cap L4 1.8L (From VIN W007800) Dorman 603-703
1999-2002Audi A4 Audi A4 Radiator Overflow Bottle with Cap V6 2.8L Dorman 603-703
1999-2002Audi A4 Audi A4 Radiator Overflow Bottle with Cap L4 1.8L Dorman 603-703
1998Audi A4 Quattro Audi A4 Quattro Quattro Radiator Overflow Bottle with Cap L4 1.8L Dorman 603-703
1998Audi A4 Quattro Audi A4 Quattro Quattro Radiator Overflow Bottle with Cap V6 2.8L Dorman 603-703
1998Audi A4 Quattro Audi A4 Quattro Radiator Overflow Bottle with Cap V6 2.8L (From VIN W007800) Dorman 603-703
1998Audi A4 Quattro Audi A4 Quattro Radiator Overflow Bottle with Cap L4 1.8L (From VIN W007800) Dorman 603-703
1999-2002Audi A4 Quattro Audi A4 Quattro Quattro Radiator Overflow Bottle with Cap L4 1.8L Dorman 603-703
1999-2002Audi A4 Quattro Audi A4 Quattro Quattro Radiator Overflow Bottle with Cap V6 2.8L Dorman 603-703
1999-2002Audi A4 Quattro Audi A4 Quattro Radiator Overflow Bottle with Cap L4 1.8L Dorman 603-703
1999-2002Audi A4 Quattro Audi A4 Quattro Radiator Overflow Bottle with Cap V6 2.8L Dorman 603-703
1998-2001Audi A6 Audi A6 Radiator Overflow Bottle with Cap V6 2.8L Dorman 603-703
1998-2001Audi A6 Quattro Audi A6 Quattro Radiator Overflow Bottle with Cap V6 2.8L Dorman 603-703
2003Audi RS6 Audi RS6 Radiator Overflow Bottle with Cap Dorman 603-703
2004Audi RS6 Audi RS6 Radiator Overflow Bottle with Cap V8 4.2L Dorman 603-703
2000-2002Audi S4 Audi S4 Radiator Overflow Bottle with Cap V6 2.7L Dorman 603-703
1998-2004Volkswagen Passat VW Passat Radiator Overflow Bottle with Cap V6 2.8L Dorman 603-703
1998-2005Volkswagen Passat VW Passat Radiator Overflow Bottle with Cap L4 1.8L Dorman 603-703
2004-2005Volkswagen Passat VW Passat Radiator Overflow Bottle with Cap L4 2.0L Diesel Dorman 603-703
Part #: 1AROB00036


Order must be placed by 4pm ET

Get it in: 2 - 4 Business Days

Want it sooner? Choose Next Day Air at Checkout

Dorman
Brand #: 603-703