United States
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Number 2 marks the part’s position in the exploded view.
Product overview
Genuine OEM Volkswagen Thermostat Housing, part number 03C121121D. This component is an integral part of the engine cooling system, designed to enclose and protect the thermostat. It directs coolant flow, ensuring the engine reaches and maintains its optimal operating temperature. Weighing approximately 0.06 kg and measuring 10 cm in length. A genuine OEM thermostat housing ensures proper sealing, correct coolant passage design, and resistance to thermal cycling, which is critical for preventing leaks and maintaining engine health.
Catalogue entry: COVER.
Fitted with: 03C121119C SEAL. RING, N10611201 SCREW.
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)
- 10 × 8 × 5 cm
- Shipping weight
- 0.06 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
53 vehiclesCover For Thermostat — locate 03C121121D Volkswagen Thermostat Housing | Engine Cooling in the official exploded view and explore the surrounding assembly.
Parts in this assembly37
- 1Housing 03C121111P
- 1Housing 03C121111H
- 2Cover 03C121121C
- 3Seal Ring 03C121119C
- 4Coolant Rg 03C121110L
- 4Coolant Rg 03C121110A
- 5Screw N10611201
- 5Screw N10419702
- 5Bolt N10473401
- 8Cover 03C121118D
- 8Cover 03C121118C
- 9Seal Ring 03C121119
- 10Coolant Rg 03C121110G
- 10Coolant Rg 03C121110F
- 12Sender 06A919501A
- 13Seal Ring N90316801
- 14Spring 032121142
- 17Seal 03C121119E
- 18Bolt N91097001
- 18Screw N10580101
- 20Tank 1K0121407A
- 21Cover 3B0121321
- 22Seal Ring 1H0121687A
- 23Screw N90846602
- 24Part 811807577C
- 25Coolant Ad G012A8GM8
- 30Radiator 5K0121251J
- 30Radiator 5K0121253D
- 30Radiator 1K0121251Q
- 30Radiator 1K0121251CJ
- 31Seal 1K0121345Q
- 31Seal 1K0121345C
- 33Bracket 1K0121367G
- 33Bracket Mt 1K0121367M
- 33Bracket Mt 1K0121367N
- 34Bolt N90808201
- 35Bush 1K0121367F
Vehicle fitment table54
Europe (43)
| Vehicle | Years | Pos. | Qty | Remark | PR |
|---|---|---|---|---|---|
| Beetle | 2016-2019 | 2 | 1 | ||
| new beetle cabriolet | 2016-2019 | 2 | 1 | ||
| Jetta 1.6 | 2014-2018 | 2 | 1 | ||
| Scirocco 2.0 | 2014-2017 | 2 | 1 | ||
| jetta | 2014-2017 | 2 | 1 | ||
| Jetta 1.4 | 2013-2015 | 2 | 1 | ||
| jetta | 2013-2014 | 2 | 1 | ||
| Polo | 2012-2014 | 2 | 1 | ||
| Tiguan 4Motion | 2011-2018 | 2 | 1 | TU0 | |
| new beetle | 2011-2016 | 2 | 1 | ||
| new beetle cabriolet | 2011-2016 | 2 | 1 | ||
| Golf Cabriolet | 2011-2016 | 2 | 1 | TU0 | |
| Passat CC | 2011-2016 | 2 | 1 | ||
| Golf Plus | 2011-2014 | 2 | 1 | CAVD,CNWA, | CT |
| Golf | 2011-2013 | 2 | 1 | CAVD,CNWA, | CT |
| Polo | 2010-2015 | 2 | 1 | ||
| Sharan Blue Motion | 2010-2015 | 6 | 1 | ||
| Touran 2.0 | 2010-2015 | 2 | 1 | ||
| Passat saloon | 2010-2015 | 2 | 1 | TU0 | |
| Eos BlueMotion | 2010-2015 | 2 | 1 | TU0 | |
| jetta | 2010-2014 | 2 | 1 | ||
| Polo | 2009-2014 | 2 | 1 | ||
| golf estate | 2009-2013 | 2 | 1 | ||
| Polo | 2009-2012 | 2 | 1 | ||
| Golf Plus 1.6 | 2009-2011 | 2 | 1 | CAVD,CNWA | TF0 |
| Scirocco 2.0 | 2008-2014 | 2 | 1 | TF0 | |
| Passat CC | 2008-2012 | 2 | 1 | TU1 | |
| golf 2.0 | 2008-2011 | 2 | 1 | CAVD,CNWA | TF0 |
| passat estate | 2008-2011 | 2 | 1 | TQ3 | |
| jetta | 2008-2011 | 2 | 1 | ||
| EOS 2.0 | 2008-2010 | 2 | 1 | TU0 | |
| Touran 1.9 | 2008-2010 | 2 | 1 | ||
| Polo | 2008-2009 | 30 | 1 | TT0 | |
| GOLF VARIANT 07> | 2007- | 2 | 1 | TF0 | |
| GOLF PLUS 08> | 2007- | 2 | 1 | BLG,BMY, | |
| Passat/4Motion 08 | 2007- | 2 | 1 | D4X | |
| TIGUAN 08> | 2007- | 2 | 1 | TU0 | |
| EOS-Cabriolet-Coupe | 2006- | 2 | 1 | D4X | |
| JETTA 06> | 2006- | 2 | 1 | BLG,BMY | D4P |
| TOURAN | 2006- | 2 | 1 | BMY,BLG | D4P |
| POLO | 2005- | 30 | 1 | BTS | TT0 |
| JETTA 06> | 2005- | 2 | 1 | ||
| TOURAN | 2005-2006 | 2 | 1 | BMY | D4R |
Other markets (10)
| Vehicle | Years | Pos. | Qty | Remark | PR |
|---|---|---|---|---|---|
| Polo Vivo | 2017- | 2 | 1 | ||
| Polo 1.6 | 2015-2020 | 2 | 1 | ||
| Polo | 2014-2022 | 2 | 1 | ||
| Polo Vivo | 2014-2017 | 2 | 1 | ||
| Polo 1.6 | 2013-2022 | 2 | 1 | ||
| Sagitar | 2011- | 2 | 1 | DAGA | TU0 |
| Polo Vivo | 2010-2014 | 2 | 1 | ||
| Golf/Rabbit 08> | 2007- | 2 | 1 | BLG,BMY | D4P |
| POLO CLASSIC "ZA"05> | 2005- | 30 | 1 | BTS | TT0 |
| Golf/Rabbit | 2005-2007 | 2 | 1 | BLG,BMY | D4P |
Listed without a diagram position (1)
| Vehicle | Years | Pos. | Qty | Remark | PR |
|---|---|---|---|---|---|
| GOLF PLUS 05> | 2005- | 2 | 1 | BLG,BMY | TF0 |
Diagrams & fitment data powered by oemdiagrams.com
03C121121D Volkswagen Thermostat Housing | Engine Cooling is fitted on: Beetle 2016-2019; new beetle cabriolet 2016-2019; Jetta 1.6 2014-2018; Scirocco 2.0 2014-2017; jetta 2014-2017; Jetta 1.4 2013-2015; jetta 2013-2014; Polo 2012-2014; Tiguan 4Motion 2011-2018; new beetle 2011-2016; new beetle cabriolet 2011-2016; Golf Cabriolet 2011-2016; Passat CC 2011-2016; Golf Plus 2011-2014; Golf 2011-2013; Polo 2010-2015; Sharan Blue Motion 2010-2015; Touran 2.0 2010-2015; Passat saloon 2010-2015; Eos BlueMotion 2010-2015; jetta 2010-2014; Polo 2009-2014; golf estate 2009-2013; Polo 2009-2012; Golf Plus 1.6 2009-2011; Scirocco 2.0 2008-2014; Passat CC 2008-2012; golf 2.0 2008-2011; passat estate 2008-2011; jetta 2008-2011; EOS 2.0 2008-2010; Touran 1.9 2008-2010; Polo 2008-2009; GOLF VARIANT 07> 2007-; GOLF PLUS 08> 2007-; Passat/4Motion 08 2007-; TIGUAN 08> 2007-; EOS-Cabriolet-Coupe 2006-; JETTA 06> 2006-; TOURAN 2006-; POLO 2005-; JETTA 06> 2005-; TOURAN 2005-2006; Polo Vivo 2017-; Polo 1.6 2015-2020; Polo 2014-2022; Polo Vivo 2014-2017; Polo 1.6 2013-2022; Sagitar 2011-; Polo Vivo 2010-2014; Golf/Rabbit 08> 2007-; POLO CLASSIC "ZA"05> 2005-; Golf/Rabbit 2005-2007.
