United States
Product overview
Genuine OEM Volkswagen Coolant Regulator Housing, part number 03C121111B. This housing is integral to the engine's thermal management, containing the thermostat and directing coolant flow to maintain optimal operating temperatures. It is typically located near the engine block or cylinder head. Constructed from durable plastic, it weighs 0.559 kg. Opting for a genuine OEM housing guarantees correct thermostat fitment, leak-free connections, and material resistance to engine coolant and temperature cycles.
Catalogue entry: HOUSING.
Technical details
- Category
- Engine Cooling
- Country of origin
- Czech Republic
- Customs (HS) code
- 90321080
- Manufacturer
- Volkswagen
- Product Type
- Genuine new auto parts
- Shipping size (L × W × H)
- 20 × 17 × 10 cm
- Shipping weight
- 0.56 kg
Specifications
As recorded in the manufacturer’s parts catalogue for this part number.
Equipment codes
- T70
PR codes identify the factory option a part belongs to; your vehicle’s are listed on the data sticker in the boot well or service booklet.
Why buy from WW Spares?
- ✓ Genuine OEM inventory sourced directly from factory networks
- ✓ Fitment support from workshop-seasoned parts specialists
- ✓ Global logistics with customs-ready documentation
Need help confirming compatibility? Talk to a specialist
Parts diagram & fitment
26 vehiclesCoolant Regulator Housing — locate 03C121111B Volkswagen Coolant Regulator Housing | Manages Coolant Flow in the official exploded view and explore the surrounding assembly.
Parts in this assembly9
Compatible / alternative parts(2)
Vehicle fitment table26
Europe (23)
| Vehicle | Years | Pos. | Qty | PR |
|---|---|---|---|---|
| Rapid | 2012-2022 | 23 | 1 | |
| Toledo Reference | 2012-2015 | 1 | 1 | T70 |
| Polo | 2012-2014 | 1 | 1 | T70 |
| Ibiza Reference | 2012-2012 | 1 | 1 | T70 |
| Ibiza Reference | 2011-2012 | 1 | 1 | T70 |
| Roomster | 2010-2015 | 23 | 1 | |
| Fabia Scout | 2010-2014 | 23 | 1 | |
| Polo | 2009-2014 | 1 | 1 | T70 |
| Fabia Ambiente | 2009-2013 | 1, 23 | 1 | T70 |
| Polo | 2009-2012 | 1 | 1 | T70 |
| Ibiza Reference | 2008-2011 | 23, 1 | 1 | |
| Polo | 2008-2009 | 15 | 1 | T70 |
| ROOMSTER 06> | 2006- | 23 | 1 | |
| FABIA/COMBI NF 07> | 2006- | 23 | 1 | |
| FOX M.05> | 2005- | 15 | 1 | |
| POLO | 2005- | 15 | 1 | |
| IBIZA 06> | 2005- | 23, 15 | 1 | |
| CORDOBA 06> | 2005- | 15 | 1 | |
| FABIA/COMBI 05> | 2004- | 23 | 1 | |
| CORDOBA/SE241 | 2002-2005 | 15 | 1 | |
| POLO | 2001-2005 | 15 | 1 | |
| IBIZA | 2001-2005 | 15 | 1 | |
| FABIA/COMBI | 1999-2004 | 23 | 1 |
Other markets (3)
| Vehicle | Years | Pos. | Qty | PR |
|---|---|---|---|---|
| Ameo 1,0 | 2016-2020 | 1 | 1 | |
| Polo | 2014-2022 | 1 | 1 | |
| POLO CLASSIC "ZA"05> | 2005- | 15 | 1 |
Diagrams & fitment data powered by oemdiagrams.com
03C121111B Volkswagen Coolant Regulator Housing | Manages Coolant Flow is fitted on: Rapid 2012-2022; Toledo Reference 2012-2015; Polo 2012-2014; Ibiza Reference 2012-2012; Ibiza Reference 2011-2012; Roomster 2010-2015; Fabia Scout 2010-2014; Polo 2009-2014; Fabia Ambiente 2009-2013; Polo 2009-2012; Ibiza Reference 2008-2011; Polo 2008-2009; ROOMSTER 06> 2006-; FABIA/COMBI NF 07> 2006-; FOX M.05> 2005-; POLO 2005-; IBIZA 06> 2005-; CORDOBA 06> 2005-; FABIA/COMBI 05> 2004-; CORDOBA/SE241 2002-2005; POLO 2001-2005; IBIZA 2001-2005; FABIA/COMBI 1999-2004; Ameo 1,0 2016-2020; Polo 2014-2022; POLO CLASSIC "ZA"05> 2005-.
