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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
  • Does NOT include the Cap
    • Buyer will need to reuse original 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 Radiator Overflow Bottle.

Item Condition: New

Attention California Customers:

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.

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 (From VIN W007800) without Cap Radiator Overflow Bottle for Models with V6 2.8L
1998Audi A4 Audi A4 (From VIN W007800) without Cap Radiator Overflow Bottle for Models with L4 1.8L
1999-2002Audi A4 Audi A4 without Cap Radiator Overflow Bottle for Models with L4 1.8L
1999-2002Audi A4 Audi A4 without Cap Radiator Overflow Bottle for Models with V6 2.8L
1998Audi A4 Quattro Audi A4 Quattro (From VIN W007800) without Cap Radiator Overflow Bottle for Models with V6 2.8L
1998Audi A4 Quattro Audi A4 Quattro (From VIN W007800) without Cap Radiator Overflow Bottle for Models with L4 1.8L
1998Audi A4 Quattro Audi A4 Quattro Quattro without Cap Radiator Overflow Bottle for Models with L4 1.8L
1998Audi A4 Quattro Audi A4 Quattro Quattro without Cap Radiator Overflow Bottle for Models with V6 2.8L
1999-2002Audi A4 Quattro Audi A4 Quattro without Cap Radiator Overflow Bottle for Models with V6 2.8L
1999-2002Audi A4 Quattro Audi A4 Quattro without Cap Radiator Overflow Bottle for Models with L4 1.8L
1999-2002Audi A4 Quattro Audi A4 Quattro Quattro without Cap Radiator Overflow Bottle for Models with L4 1.8L
1999-2002Audi A4 Quattro Audi A4 Quattro Quattro without Cap Radiator Overflow Bottle for Models with V6 2.8L
1998-2001Audi A6 Audi A6 without Cap Radiator Overflow Bottle for Models with V6 2.8L
1998-2001Audi A6 Quattro Audi A6 Quattro Quattro without Cap Radiator Overflow Bottle for Models with V6 2.8L
1998-2001Audi A6 Quattro Audi A6 Quattro without Cap Radiator Overflow Bottle for Models with V6 2.8L
2003Audi RS6 Audi RS6 without Cap Radiator Overflow Bottle for Models with
2004Audi RS6 Audi RS6 without Cap Radiator Overflow Bottle for Models with V8 4.2L
2000-2002Audi S4 Audi S4 without Cap Radiator Overflow Bottle for Models with V6 2.7L
1998-2005Volkswagen Passat VW Passat without Cap Radiator Overflow Bottle for Models with L4 1.8L
1998-2004Volkswagen Passat VW Passat without Cap Radiator Overflow Bottle for Models with V6 2.8L
2004-2005Volkswagen Passat VW Passat without Cap Radiator Overflow Bottle for Models with L4 2.0L Diesel
Part #: 1AROB00040


Order must be placed by 4pm ET

Get it in: 2 - 4 Business Days

Want it sooner? Choose Next Day Air at Checkout