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
81 vehiclesCover For Thermostat — locate 03C121121D Volkswagen Thermostat Housing | Engine Cooling in the official exploded view and explore the surrounding assembly.
Parts in this assembly48
- 1Housing 032121111BM
- 1Housing 03C121111G
- 1Housing 03C121111P
- 1Housing 03C121111H
- 2Cover 032121121K
- 2Cover 03C121121C
- 3Seal Ring 032121119J
- 3Seal Ring 03C121119C
- 4Coolant Rg 032121110B
- 4Coolant Rg 03C121110L
- 4Coolant Rg 03C121110A
- 5Screw N10611201
- 5Screw N90629803
- 5Bolt N10473401
- 8Cover 03C121118D
- 8Cover 03C121118C
- 9Seal Ring 03C121119
- 10Coolant Rg 03C121110G
- 10Coolant Rg 03C121110F
- 12Bungs 357121140
- 12Sender 06A919501A
- 13Seal Ring N90316801
- 14Spring 032121142
- 17Seal 03C121119E
- 18Bolt N91097101
- 18Bolt N91097001
- 20Tank 1K0121407A
- 21Cover 3B0121321
- 22Seal Ring 1H0121687A
- 23Screw N90846602
- 24Part 811807577C
- 25Coolant G013A8JM8
- 25Coolant G013A8JM9
- 25Coolant G013A8JM1
- 30Part 1K0121251BR
- 30Radiator 1K0121251DN
- 30Radiator 1K0121251L
- 31Seal 1K0121345A
- 31Seal 1K0121345C
- 31Seal 1K0121345Q
- 31Seal 1K0121345
- 32Seal 1K0121345H
- 32Seal 1K0121345G
- 33Bracket 1K0121367G
- 33Bracket Mt 1K0121367M
- 33Bracket Mt 1K0121367N
- 34Bolt N90808201
- 35Bush 1K0121367F
Compatible / alternative parts(12)
Vehicle fitment table81
Europe (70)
| 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 | ||
| Yeti | 2013-2017 | 2 | 1 | ||
| Jetta 1.4 | 2013-2015 | 2 | 1 | ||
| superb | 2013-2015 | 2 | 1 | ||
| jetta | 2013-2014 | 2 | 1 | ||
| Altea XL Reference | 2013-2013 | 2 | 1 | ||
| Rapid | 2012-2022 | 2 | 1 | ||
| Toledo Reference | 2012-2015 | 2 | 1 | TU0 | |
| Polo | 2012-2014 | 2 | 1 | ||
| Ibiza Reference | 2012-2012 | 30 | 1 | TT0 | |
| 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 |
| Ibiza Reference | 2011-2012 | 2 | 1 | ||
| 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 | |
| Roomster | 2010-2015 | 2 | 1 | ||
| Audi A1 Sportback | 2010-2015 | 2 | 1 | TU0 | |
| jetta | 2010-2014 | 2 | 1 | ||
| Fabia Scout | 2010-2014 | 2 | 1 | ||
| Altea XL Reference | 2010-2013 | 2 | 1 | ||
| Alhambra Stylance | 2010-2013 | 6 | 1 | TF0 | |
| Leon Stylance | 2010-2012 | 2 | 1 | ||
| Polo | 2009-2014 | 2 | 1 | ||
| golf estate | 2009-2013 | 2 | 1 | ||
| Yeti | 2009-2013 | 2 | 1 | ||
| Fabia Ambiente | 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 | |
| superb comfort | 2008-2013 | 2 | 1 | ||
| octavia ambiente | 2008-2013 | 2 | 1 | CAXA | D4X |
| Audi A3 Sportback | 2008-2013 | 2 | 1 | TU0 | |
| 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 | ||
| Ibiza Reference | 2008-2011 | 30 | 1 | TT0 | |
| 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 | |
| Audi A3/S3/Sportb./qu. 08 | 2007- | 2 | 1 | TU0 | |
| Audi A3 Cab. 2.0 TDI | 2007-2013 | 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 |
| ALTEA 07> | 2006- | 2 | 1 | ||
| ROOMSTER 06> | 2006- | 15 | 1 | ||
| FABIA/COMBI NF 07> | 2006- | 21 | 1 | ||
| GOLF PLUS 05> | 2005- | 2 | 1 | BLG,BMY | TF0 |
| POLO | 2005- | 30 | 1 | BTS | TT0 |
| JETTA 06> | 2005- | 2 | 1 | ||
| LEON 06> | 2005- | 2 | 1 | ||
| TOURAN | 2005-2006 | 2 | 1 | BMY | D4R |
| TOLEDO 05> | 2004- | 2 | 1 |
Other markets (11)
| 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 |
| Rapid Ambition | 2011-2021 | 2 | 1 | ||
| 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 |
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; Yeti 2013-2017; Jetta 1.4 2013-2015; superb 2013-2015; jetta 2013-2014; Altea XL Reference 2013-2013; Rapid 2012-2022; Toledo Reference 2012-2015; Polo 2012-2014; Ibiza Reference 2012-2012; 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; Ibiza Reference 2011-2012; Polo 2010-2015; Sharan Blue Motion 2010-2015; Touran 2.0 2010-2015; Passat saloon 2010-2015; Eos BlueMotion 2010-2015; Roomster 2010-2015; Audi A1 Sportback 2010-2015; jetta 2010-2014; Fabia Scout 2010-2014; Altea XL Reference 2010-2013; Alhambra Stylance 2010-2013; Leon Stylance 2010-2012; Polo 2009-2014; golf estate 2009-2013; Yeti 2009-2013; Fabia Ambiente 2009-2013; Polo 2009-2012; Golf Plus 1.6 2009-2011; 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; Ibiza Reference 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-; Audi A3/S3/Sportb./qu. 08 2007-; Audi A3 Cab. 2.0 TDI 2007-2013; EOS-Cabriolet-Coupe 2006-; JETTA 06> 2006-; TOURAN 2006-; ALTEA 07> 2006-; ROOMSTER 06> 2006-; FABIA/COMBI NF 07> 2006-; GOLF PLUS 05> 2005-; POLO 2005-; JETTA 06> 2005-; LEON 06> 2005-; TOURAN 2005-2006; TOLEDO 05> 2004-; Polo Vivo 2017-; Polo 1.6 2015-2020; Polo 2014-2022; Polo Vivo 2014-2017; Polo 1.6 2013-2022; Sagitar 2011-; Rapid Ambition 2011-2021; Polo Vivo 2010-2014; Golf/Rabbit 08> 2007-; POLO CLASSIC "ZA"05> 2005-; Golf/Rabbit 2005-2007.
