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Genuine OEM & performance parts — ships to United States

Product overview

Genuine OEM Volkswagen Coolant Expansion Tank, part number 3D0122407B. This plastic reservoir is an essential component of the engine cooling system, designed to manage coolant volume changes caused by temperature fluctuations. Weighing approximately 0.573 kg, it helps maintain proper system pressure. Genuine OEM expansion tanks are made from high-quality, heat-resistant plastics to ensure long-term durability and prevent leaks, which are critical for cooling system integrity.

Technical details

Category
Engine Cooling
Customs (HS) code
87089997
Manufacturer
Volkswagen
Product Type
Genuine new auto parts
Shipping size (L × W × H)
33.5 × 21 × 4.5 cm
Shipping weight
0.57 kg

Parts diagram & fitment

4 vehicles

Additional Expansion Tank — locate 3D0122407B Volkswagen Coolant Expansion Tank | Engine Cooling in the official exploded view and explore the surrounding assembly.

Parts in this assembly(38)

Diagrams & fitment data powered by oemdiagrams.com

3D0122407B Volkswagen Coolant Expansion Tank | Engine Cooling is fitted on: Phaeton (lang) 2003-2006; PHAETON 08> 2007-; phaeton 4motion 2008-2010; phaeton 4motion 2010-2016.