United States
Product overview
Genuine OEM Audi Cooling System O-Ring, part number 4E0121666. This essential O-ring is designed to provide a reliable seal for various cooling system components, preventing coolant leaks and maintaining optimal system pressure. It is specified for a rear position within the cooling system. Made from high-quality, heat-resistant rubber, this O-ring weighs 0.0024 kg. Using a genuine OEM O-ring ensures proper material composition and dimensional accuracy, critical for long-term sealing integrity against temperature fluctuations and coolant chemicals.
Catalogue entry: SEAL. RING 38X4 ×2.
Fitted with: 4E0121142 SPRING, 4D0133335 Cap closure.
Technical details
- Category
- Engine Cooling
- Country of origin
- Portugal
- Customs (HS) code
- 40169300
- Manufacturer
- Audi
- Product Type
- Genuine new auto parts
- Shipping size (L × W × H)
- 4 × 4 × 0.4 cm
- Shipping weight
- 0 kg
Specifications
As recorded in the manufacturer’s parts catalogue for this part number.
- Dimensions
- 38x4
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
109 vehiclesO-ring — locate 4E0121666 Audi Cooling System O-Ring | Genuine OEM in the official exploded view and explore the surrounding assembly.
Parts in this assembly43
- 2Hose 4M0122902P
- 3Hose 4M0122901K
- 4Water Pipe 4M0121070F
- 5Bolt N10413408
- 6Bush 1K0129734B
- 7Grommet 867129669
- 8Clamp N90687001
- 9Clamp N90686902
- 10Hose 4M0122101CL
- 10Hose 4M0122101DJ
- 10Hose 4M0122101EB
- 10Hose 4M0122101EC
- 11Hose 4M0121471AM
- 12Spring 4E0121142
- 13Hose 4M0122055BK
- 13Hose 4M0122055BL
- 13Hose 4M0122055DQ
- 13Hose 4M0122055CH
- 14Line 4M0121081BG
- 15Line 4M0121081CT
- 16Hose 4M0122055DP
- 18Clamp N90926501
- 20Sensor 079919523H
- 21Seal Ring WHT002287B
- 22Screw N10170303
- 25Hose 4M0122447J
- 28Valve 5Q0906457K
- 29Bolt N10124309
- 30Bracket 4M0121233CP
- 31Bolt N91096701
- 32Hose 4M0122056AC
- 35Water Pipe 059121512AM
- 35Water Pipe 059121512AP
- 35Water Pipe 059121512AQ
- 36Screw N10664901
- 37Bolt N10451408
- 38Seal Ring N90809102
- 39Hose 4M0122449AC
- 41Water Pipe 4M0121485CP
- 42Collar Nut N01508210
- 43Hose 4M0121449BK
- 47Hose 4M0819314J
- 47Hose 4M0819314M
Vehicle fitment table109
Europe (92)
| Vehicle | Years | Pos. | Qty | PR |
|---|---|---|---|---|
| touareg | 2017-2023 | 17 | 2 | |
| Audi A5 Sportback | 2016-2020 | 22 | 2 | |
| Audi A5 Cabrio 2.0 | 2016-2018 | 22 | 2 | |
| Audi Q3 2.0 TDI | 2014-2019 | 2A | 1 | |
| Audi A7 Sportback | 2014-2018 | 2 | 2 | T44 |
| audi a6 qu. 3.0 tdi | 2014-2018 | 2 | 1 | |
| Touareg BlueMotion | 2014-2018 | 2 | 2 | |
| Scirocco 2.0 | 2014-2017 | 8 | 1 | |
| Audi RS6 Avant | 2013-2018 | 2 | 2 | |
| Audi RSQ3 qu. 2.5 | 2013-2018 | 2 | 1 | |
| Audi RS7 Sportback | 2013-2018 | 2 | 2 | |
| Audi A8L qu. 3.0 TDI | 2013-2018 | 2 | 4 | |
| Yeti | 2013-2017 | 8 | X | |
| Yeti | 2013-2017 | 8 | X | |
| superb | 2013-2015 | 8 | X | |
| Altea XL Reference | 2013-2013 | 8 | X | TD6 |
| Audi A6 Av. qu. 3.0 | 2012-2018 | 2 | 1 | |
| Audi Q5 qu. 2.0 TDI | 2012-2017 | 8 | 2 | |
| Audi Q3 1.4 | 2012-2016 | 2A | X | TN6 |
| Audi RS4 Av. qu. 4.2 | 2012-2015 | 2 | 2 | TN8 |
| Audi RS5 Cabrio | 2012-2015 | 2 | 2 | TN8 |
| touareg | 2012-2014 | 2 | 2 | |
| Audi A5 Sportback | 2011-2017 | 8 | 2 | |
| Audi A5 Cabrio 2.0 | 2011-2017 | 8 | 2 | |
| new beetle | 2011-2016 | 8 | 1 | |
| new beetle cabriolet | 2011-2016 | 8 | 1 | |
| Golf Cabriolet | 2011-2016 | 8 | X | TD6 |
| Passat CC | 2011-2016 | 8 | 1 | |
| Audi Q3 quattro | 2011-2015 | 2A | X | TD6 |
| audi a4 av. 2.0 tdi | 2011-2015 | 8 | 2 | |
| Golf | 2011-2013 | 8 | X | TD6 |
| phaeton 4motion | 2010-2016 | 2 | X | |
| Audi RS5 Coupe | 2010-2015 | 2 | 2 | TN8 |
| Audi A7 Sportback | 2010-2015 | 2 | 1 | |
| audi a6 2.0 tdi | 2010-2015 | 8 | 2 | |
| Passat saloon | 2010-2015 | 8 | 1 | TD6 |
| Eos BlueMotion | 2010-2015 | 8 | X | TD6 |
| Audi TTS Coupe 2.0 | 2010-2014 | 8 | X | TE6 |
| jetta | 2010-2014 | 8 | X | |
| Altea XL Reference | 2010-2013 | 8 | X | TD6 |
| touareg | 2010-2012 | 2 | 2 | |
| Leon Stylance | 2010-2012 | 8 | X | |
| Audi Q5 qu. 2.0 | 2009-2018 | 8 | 2 | D2D |
| Audi Q7 qu. 3.0 TDI | 2009-2015 | 2 | 1 | |
| Superb Ambition | 2009-2015 | 8 | X | |
| Audi A8L qu. 3.0 TDI | 2009-2014 | 2 | 4 | TC8 |
| jetta variant | 2009-2014 | 8 | 1 | |
| Golf | 2009-2014 | 8 | X | TN6 |
| golf estate | 2009-2013 | 8 | X | |
| Yeti | 2009-2013 | 8 | X | |
| Jetta Vagon 08> | 2008- | 8 | 1 | D2L |
| Audi A4 Av. Allroad | 2008-2016 | 8 | 2 | TG6 |
| Scirocco 2.0 | 2008-2014 | 8 | 1 | TD6 |
| Audi A3 Sportback | 2008-2013 | 8, 31 | X | TE6 |
| superb comfort | 2008-2013 | 8 | X | |
| octavia ambiente | 2008-2013 | 8 | X | |
| Audi Q5 qu. 2.0 TDI | 2008-2012 | 2, 8 | 1 | T41 |
| Audi A5 Cabrio 2.0 | 2008-2012 | 8 | 2 | TG6 |
| Passat CC | 2008-2012 | 8 | 1 | TJ2 |
| Audi A6 2.7 TDI | 2008-2011 | 2 | ||
| golf 2.0 | 2008-2011 | 8 | 2 | TE6 |
| passat estate | 2008-2011 | 8 | 1 | TJ2 |
| jetta | 2008-2011 | 8 | 1 | |
| Exeo ST Reference | 2008-2011 | 8 | 2 | TF6 |
| EOS 2.0 | 2008-2010 | 8 | X | TD6 |
| phaeton 4motion | 2008-2010 | 2 | 1 | T1H |
| Audi TT Coupe/Roadster 08> | 2007- | 8 | X | TE6 |
| Audi A5/S5 Coupe 08> | 2007- | 8, 2 | 2 | TH2 |
| Audi A8/S8/qu. lang 08> | 2007- | 2 | 1 | |
| AUDI A4 08> | 2007- | 8, 2 | 2 | TH2 |
| Audi A3/S3/Sportb./qu. 08 | 2007- | 8, 31 | X | TJ2 |
| GOLF VARIANT 07> | 2007- | 8 | 1 | |
| Touareg 08> | 2007- | 2 | 1 | |
| Passat/4Motion 08 | 2007- | 8 | 1 | TJ2 |
| PHAETON 08> | 2007- | 2 | 1 | T1H |
| Audi A3 Cab. 2.0 TDI | 2007-2013 | 8 | X | TJ2 |
| Audi RS6 Avant qu.5.0 | 2007-2010 | 2 | 1 | TT7 |
| Audi A4/S4 Cabrio./qu. 07> | 2006- | 2, 4 | 1 | T41 |
| Audi Q7 07> | 2006- | 2 | 1 | T41 |
| AUDI A6 QU.ALLROAD 07> | 2006- | 2 | 1 | TA1 |
| JETTA 06> | 2006- | 8 | 1 | |
| ALTEA 07> | 2006- | 8 | X | |
| Audi A4/S4/Av./qu. 05> | 2005- | 2, 3 | 1 | T41 |
| JETTA 06> | 2005- | 8 | 1 | D2L |
| LEON 06> | 2005- | 8 | X | |
| Audi A3/S3/quattro | 2005-2007 | 8, 31 | X | TJ2 |
| Touareg | 2005-2006 | 2 | 1 | T8T |
| Audi A6/S6/Avant/qu. 05> | 2004- | 2 | 1 | TB3 |
| TOLEDO 05> | 2004- | 8 | X | TJ2 |
| OCTAVIA/COMBI/4X4 04> | 2004- | 8 | X | TJ2 |
| Audi A8/S8/qu. lang | 2003-2007 | 4, 3 | 1 | T15 |
| Phaeton (lang) | 2003-2006 | 2 | 1 | T1H |
Other markets (16)
| Vehicle | Years | Pos. | Qty | PR |
|---|---|---|---|---|
| Phideon | 2016-2023 | 2 | 2 | |
| audi a6 1.8 | 2015-2019 | 8 | ||
| Sagitar | 2014-2019 | 8 | 1 | |
| Sagitar | 2011- | 8 | X | |
| New Passat | 2011-2019 | 8 | X | |
| Audi A6 L 2.0 | 2011-2013 | 8 | 1 | TV2 |
| Magotan 1.4 | 2011-2012 | 8 | 1 | TN6 |
| Audi A4L 2.0 | 2008-2012 | 8 | 2 | D67 |
| MAGOTAN (PASSAT) 07> | 2007- | 8 | X | |
| Golf/Rabbit 08> | 2007- | 8 | 1 | TQ2 |
| OCTAVIA "CN."07> | 2007- | 8 | X | |
| AUDI A6L "CN"05> | 2005- | 2, 3 | ||
| AUDI A4 "CN."06> | 2005- | 3 | 1 | |
| Jetta "USA"05> | 2005- | 8 | 1 | |
| BORA-FAW "CN" 06> | 2005- | 8 | X | |
| 3C0 platform | 8 | 1 |
Platform / generic diagrams (1)
| Vehicle | Years | Pos. | Qty | PR |
|---|---|---|---|---|
| 3C0 platform | 8 | 1 | TN6 |
Diagrams & fitment data powered by oemdiagrams.com
4E0121666 Audi Cooling System O-Ring | Genuine OEM is fitted on: touareg 2017-2023; Audi A5 Sportback 2016-2020; Audi A5 Cabrio 2.0 2016-2018; Audi Q3 2.0 TDI 2014-2019; Audi A7 Sportback 2014-2018; audi a6 qu. 3.0 tdi 2014-2018; Touareg BlueMotion 2014-2018; Scirocco 2.0 2014-2017; Audi RS6 Avant 2013-2018; Audi RSQ3 qu. 2.5 2013-2018; Audi RS7 Sportback 2013-2018; Audi A8L qu. 3.0 TDI 2013-2018; Yeti 2013-2017; superb 2013-2015; Altea XL Reference 2013-2013; Audi A6 Av. qu. 3.0 2012-2018; Audi Q5 qu. 2.0 TDI 2012-2017; Audi Q3 1.4 2012-2016; Audi RS4 Av. qu. 4.2 2012-2015; Audi RS5 Cabrio 2012-2015; touareg 2012-2014; Audi A5 Sportback 2011-2017; Audi A5 Cabrio 2.0 2011-2017; new beetle 2011-2016; new beetle cabriolet 2011-2016; Golf Cabriolet 2011-2016; Passat CC 2011-2016; Audi Q3 quattro 2011-2015; audi a4 av. 2.0 tdi 2011-2015; Golf 2011-2013; phaeton 4motion 2010-2016; Audi RS5 Coupe 2010-2015; Audi A7 Sportback 2010-2015; audi a6 2.0 tdi 2010-2015; Passat saloon 2010-2015; Eos BlueMotion 2010-2015; Audi TTS Coupe 2.0 2010-2014; jetta 2010-2014; Altea XL Reference 2010-2013; touareg 2010-2012; Leon Stylance 2010-2012; Audi Q5 qu. 2.0 2009-2018; Audi Q7 qu. 3.0 TDI 2009-2015; Superb Ambition 2009-2015; Audi A8L qu. 3.0 TDI 2009-2014; jetta variant 2009-2014; Golf 2009-2014; golf estate 2009-2013; Yeti 2009-2013; Jetta Vagon 08> 2008-; Audi A4 Av. Allroad 2008-2016; Scirocco 2.0 2008-2014; Audi A3 Sportback 2008-2013; superb comfort 2008-2013; octavia ambiente 2008-2013; Audi Q5 qu. 2.0 TDI 2008-2012; Audi A5 Cabrio 2.0 2008-2012; Passat CC 2008-2012; Audi A6 2.7 TDI 2008-2011; golf 2.0 2008-2011; passat estate 2008-2011; jetta 2008-2011; Exeo ST Reference 2008-2011; EOS 2.0 2008-2010; phaeton 4motion 2008-2010; Audi TT Coupe/Roadster 08> 2007-; Audi A5/S5 Coupe 08> 2007-; Audi A8/S8/qu. lang 08> 2007-; AUDI A4 08> 2007-; Audi A3/S3/Sportb./qu. 08 2007-; GOLF VARIANT 07> 2007-; Touareg 08> 2007-; Passat/4Motion 08 2007-; PHAETON 08> 2007-; Audi A3 Cab. 2.0 TDI 2007-2013; Audi RS6 Avant qu.5.0 2007-2010; Audi A4/S4 Cabrio./qu. 07> 2006-; Audi Q7 07> 2006-; AUDI A6 QU.ALLROAD 07> 2006-; JETTA 06> 2006-; ALTEA 07> 2006-; Audi A4/S4/Av./qu. 05> 2005-; JETTA 06> 2005-; LEON 06> 2005-; Audi A3/S3/quattro 2005-2007; Touareg 2005-2006; Audi A6/S6/Avant/qu. 05> 2004-; TOLEDO 05> 2004-; OCTAVIA/COMBI/4X4 04> 2004-; Audi A8/S8/qu. lang 2003-2007; Phaeton (lang) 2003-2006; Phideon 2016-2023; audi a6 1.8 2015-2019; Sagitar 2014-2019; Sagitar 2011-; New Passat 2011-2019; Audi A6 L 2.0 2011-2013; Magotan 1.4 2011-2012; Audi A4L 2.0 2008-2012; MAGOTAN (PASSAT) 07> 2007-; Golf/Rabbit 08> 2007-; OCTAVIA "CN."07> 2007-; AUDI A6L "CN"05> 2005-; AUDI A4 "CN."06> 2005-; Jetta "USA"05> 2005-; BORA-FAW "CN" 06> 2005-; 3C0 platform.
