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Rein Expansion Tank EPT0011 (OEM 8E0121403A) for Audi A4 (2002–2006)

Rein Expansion Tank EPT0011 (OEM 8E0121403A) for Audi A4 (2002–2006)

REIN AUTOMOTIVE
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SKU EPT0011
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$25.70 - $25.70
$25.70
$25.70 - $25.70
$25.70
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We show live inventory for in-stock items. Products may sell out due to high demand but are restocked regularly. Out-of-stock items can still be ordered and usually arrive within a few weeks.

This Rein expansion tank (coolant reservoir) is a direct replacement for Audi A4 models from 2002 to 2006 (B6 generation). It stores excess coolant and maintains proper system pressure to prevent overheating. Manufactured from virgin plastic to OE specifications for durability and reliable performance.

Key Features & Benefits

  • Direct Fit: Replaces Audi part 8E0121403A without modifications.
  • OE-Quality Material: Made from virgin plastic to resist cracking and UV damage.
  • Leak Prevention: Maintains cooling system pressure and prevents coolant loss.
  • Easy Installation: Simple swap with standard coolant drain and refill procedure.

Vehicle Fitment

Make Model Years Engine
Audi A4 Quattro 2002–2006 3.0V6
Audi A4 2002–2005 3.0V6

Technical Specifications

Part Number EPT0011
OEM Cross-Reference 8E0121403A
Brand Rein Automotive

Installation Notes

Simple swap with standard coolant drain and refill procedure.

About REIN AUTOMOTIVE

Rein Automotive is a trusted manufacturer of cooling system components, known for producing OE-quality parts for European vehicles.

This part also goes by the following cross reference.

Cross Reference Part Number:

Fits These Vehicles 2 applications
B6 A4
Make Model Engine Years
Audi A4 Quattro 3.0V6 2002–2006
Audi A4 3.0V6 2002–2005

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