United States
Product overview
Genuine OEM Volkswagen Coolant Regulator Housing with Thermostat, part number 03L121111AC. This integrated assembly plays a critical role in the engine cooling system by housing the thermostat and regulating the flow of coolant. It ensures the engine reaches and maintains its optimal operating temperature. Weighing 0.295 kg, this housing is typically made from high-strength plastic or metal, designed to withstand thermal cycling and pressure. Using a genuine OEM housing with thermostat ensures precise temperature control, proper coolant routing, and long-term leak-free operation, essential for engine longevity.
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)
- 14.5 × 12.5 × 11.5 cm
- Shipping weight
- 0.3 kg
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
22 vehiclesHousing — locate 03L121111AC Volkswagen Coolant Regulator Housing | Engine Cooling in the official exploded view and explore the surrounding assembly.
This part is marked discontinued by the manufacturer (since 2022-03-01); contact us to check current availability.
Parts in this assembly6
Vehicle fitment table22
Europe (21)
| Vehicle | Years | Pos. | Qty | Remark | PR |
|---|---|---|---|---|---|
| new beetle | 2011-2016 | 31, 54 | 1 | ||
| new beetle cabriolet | 2011-2016 | 21, 54 | 1 | ||
| Golf | 2011-2013 | 21 | 1 | CJAA | TR4 |
| jetta | 2010-2014 | 21, 54 | 1 | ||
| jetta variant | 2009-2014 | 31, 54 | |||
| golf estate | 2009-2013 | 31 | 1 | ||
| Yeti | 2009-2013 | 31 | 1 | ||
| Golf Plus 1.6 | 2009-2011 | 31 | 1 | TU3 | |
| Jetta Vagon 08> | 2008- | 54 | 1 | ||
| Scirocco 2.0 | 2008-2014 | 31 | 1 | TG3 | |
| superb comfort | 2008-2013 | 31 | 1 | ||
| octavia ambiente | 2008-2013 | 31 | 1 | ||
| Audi A3 Sportback | 2008-2013 | 1 | 1 | ||
| Passat CC | 2008-2012 | 31 | 1 | TG3 | |
| golf 2.0 | 2008-2011 | 31 | 1 | TG3 | |
| passat estate | 2008-2011 | 31 | 1 | ABC | |
| jetta | 2008-2011 | 31, 81 | 1 | ||
| EOS 2.0 | 2008-2010 | 31 | 1 | TG3 | |
| TIGUAN 08> | 2007- | 31 | 1 | TG3 | |
| Audi A3 Cab. 2.0 TDI | 2007-2013 | 1 | 1 | ||
| JETTA 06> | 2006- | 31 | 1 |
Other markets (1)
| Vehicle | Years | Pos. | Qty | Remark | PR |
|---|---|---|---|---|---|
| Jetta "USA"05> | 2005- | 21, 1 | 1 |
Diagrams & fitment data powered by oemdiagrams.com
03L121111AC Volkswagen Coolant Regulator Housing | Engine Cooling is fitted on: new beetle 2011-2016; new beetle cabriolet 2011-2016; Golf 2011-2013; jetta 2010-2014; jetta variant 2009-2014; golf estate 2009-2013; Yeti 2009-2013; Golf Plus 1.6 2009-2011; Jetta Vagon 08> 2008-; Scirocco 2.0 2008-2014; superb comfort 2008-2013; octavia ambiente 2008-2013; Audi A3 Sportback 2008-2013; Passat CC 2008-2012; golf 2.0 2008-2011; passat estate 2008-2011; jetta 2008-2011; EOS 2.0 2008-2010; TIGUAN 08> 2007-; Audi A3 Cab. 2.0 TDI 2007-2013; JETTA 06> 2006-; Jetta "USA"05> 2005-.
