Product overview
Genuine OEM Volkswagen Coolant Expansion Tank, part number 7H0121407C. This vital component is responsible for holding excess engine coolant, allowing for the thermal expansion and contraction of the coolant as the engine heats up and cools down. It also provides a reservoir for topping up the cooling system. Constructed from durable, translucent plastic, it weighs approximately 0.451 kg. Using a genuine OEM expansion tank ensures proper fitment, material integrity, and resistance to temperature fluctuations and chemical degradation, which are critical for maintaining engine cooling system reliability.
Technical details
- Category
- Engine Cooling
- Country of origin
- Italy
- Customs (HS) code
- 87089997
- Manufacturer
- Volkswagen
- Product Type
- Genuine new auto parts
- Shipping size (L × W × H)
- 22.5 × 22.5 × 16.9 cm
- Shipping weight
- 0.45 kg
Parts diagram & fitment
23 vehiclesReservoir — locate 7H0121407C Volkswagen Coolant Expansion Tank | Genuine OEM in the official exploded view and explore the surrounding assembly.
Parts in this assembly(25)
- 1Radiator 7H0121253J
- 1Radiator 7H0121253M
- 1Radiator 7H0121253K
- 2Part 7H0121207
- 4Bolt 7L0121953
- 5Bolt 7L0121953A
- 6Bolt N90817003
- 7Rubber Bush 7H0121275B
- 8Rubber Bush 7H0121276C
- 9Bolt N90808201
- 13Cover 3B0121321
- 14Retainer 7H0121409A
- 15Part 811807577C
- 16Screw N10003203
- 19Blind 7L0121223
- 20Sender 06A919501A
- 21Spring 032121142
- 22Air Guide 7H0805962B
- 24Clip 7H0807435A
- 25Clip 701867299
- 26Seal Ring N90316801
- 27Clip Nut 7H0805249
- 30Cool Add G012A8FM8
- 30Coolant Ad G012A8GA3
- 30Cool Add G012A8FM1
Compatible / alternative parts(2)
Diagrams & fitment data powered by oemdiagrams.com
7H0121407C Volkswagen Coolant Expansion Tank | Genuine OEM is fitted on: TRANSPORTER 2003-2005; CAMPMOBILE(T5) 2004-2006; TRANSPORTER/4MOTION 06 2005-2006; TRANSPORTER 06 2005-2006; TRANSPORTER/4MOTION 07 2006-2007; TRANSPORTER OFFEN (7J) 07 2006-2007; CAMPMOBIL (T5) 07 2006-2007; TRANSPORTER GESCHL. 08 2007-; TRANSPORTER OFFEN 08 2007-; CAMPMOBIL-T5 08 2007-; transp. caravelle 2008-2009; transp. dropside 2008-2009; California Camper 2008-2009; transp. caravelle 2009-2011; transp. dropside 2009-2011; California Camper 2009-2011; transp. caravelle 2011-2015; transp. dropside 2011-2015; California Camper 2011-2015; caravelle 2015-2019; Single-cab transp. 2015-2019; California Camper 2015-2019.