Coolant Thermostat Housing | 2-Pin Connector | For 1.4 TSI Engines | OE: 03C121004D / E / J / JX / L
OEM Part Numbers:
- 03C121004D
- 03C121004E
- 03C121004J
- 03C121004JX
- 03C121004L
Product Description:
This Coolant Thermostat Housing with a 2-pin electrical connector is a high-quality replacement component designed specifically for 1.4 TSI and 1.4 FSI petrol engines. It regulates coolant flow, ensuring optimal engine temperature during operation, which is critical for fuel efficiency, emissions control, and engine longevity.
This part is a direct-fit replacement for original factory-fitted units on a broad range of Volkswagen Group vehicles including Audi, SEAT, Skoda, and VW brands.
Vehicle Compatibility:
Audi
- A1 1.4 TFSI [2010-2015]
- A1 1.4 TFSI [2011-2015]
SEAT
- Alhambra 1.4 TSI [2010-2015]
- Ibiza MK V 1.4 TSI [2008-2015]
- Ibiza Sportcoupe MK V 1.4 TSI [2008-2015]
- Ibiza Sportcoupe MK V 1.4 TSI Cupra [2008-2015]
- Ibiza ST MK V 1.4 TSI [2010-2015]
Skoda
- [Note: No Skoda models listed in provided data. If applicable, please confirm models for Skoda compatibility.]
Volkswagen (VW)
- Beetle 1.4 TSI [1949-2015]x
- Beetle 1.4 TSI [2011-2015]
- CC 1.4 TSI [2011-2015]
- EOS 1.4 TSI [2006-2015]
- Golf MK V 1.4 TSI [2003-2008]
- Golf MK VI 1.4 TSI [2008-2015]
- Golf Plus 1.4 TSI [2005-2013]
- Golf V MK V 1.4 TSI [2003-2009]
- Jetta MK III 1.4 TSI [2005-2011]
- Jetta MK IV 1.4 TSI [2010-2015]
- Passat 1.4 TSI [2010-2014]
- Polo 1.4 GTI [2009-2015]
- Scirocco 1.4 TSI [2008-2015]
- Tiguan 1.4 TSI / 4Motion [2007-2015]
- Touran 1.4 FSI / TSI [2003-2015]
xNote: The 1949-2015 range for the Beetle appears to be incorrect. Please validate for accuracy. Likely intended to start from 2011 when TSI variants were introduced.
Specifications:
- Connector Type: 2-Pin Electrical Plug
- Application: Engine Cooling System - Thermostat Housing
- Material: High-quality thermoplastic or aluminum alloy (varies by manufacturer)
- Function: Regulates coolant circulation between the radiator and engine
- Fitment Type: Direct Replacement (OEM-equivalent)
Features & Benefits:
- Restores proper engine cooling performance
- Maintains optimal operating temperature
- Compatible with 1.4L TSI and FSI turbocharged petrol engines
- Resistant to thermal stress, pressure, and vibration
- Precision-molded to match OEM dimensions
Cross Reference & Keywords:
- Thermostat Module / Thermostat Housing Assembly
- VW Audi Group 1.4 TSI Coolant Thermostat
- 03C 121 004 D / E / J / JX / L
What's in the box
1 x Water pump
