United States
Product overview
Genuine OEM Audi EGR Coolant Hose, part number 3C0121157AA. This hose is designed to carry coolant to and from the Exhaust Gas Recirculation (EGR) system, playing a critical role in temperature regulation. It features integrated heat shielding to protect against high engine bay temperatures. Choosing a genuine OEM hose ensures correct routing geometry, material composition, and resistance to thermal cycling and coolant chemicals, preventing leaks and premature failure.
Technical details
- Category
- Engine Cooling
- Country of origin
- Romania
- Customs (HS) code
- 40093100
- Manufacturer
- Audi
- Product Type
- Genuine new auto parts
- Shipping size (L × W × H)
- 24.5 × 8.5 × 5 cm
- Shipping weight
- 0.09 kg
Parts diagram & fitment
34 vehiclesCoolant Hose — locate 3C0121157AA Audi EGR Coolant Hose | Genuine OEM in the official exploded view and explore the surrounding assembly.
Superseded by 03G121132B — the later replacement part.
Parts in this assembly(45)
- 1Hose 3C0121051L
- 1Hose 3C0122051BK
- 2Coupl Piece 3B0122291C
- 3Seal Ring N90765301
- 4Spring 1J0121142
- 5Bracket 3C0121093
- 6Hose 3C0121051K
- 7Adapter N90692901
- 8Hose 3C0121051C
- 9Water Pipe 3C0121064
- 10Part N90908301
- 11Collar Nut N01508213
- 12Hose 3C0121051B
- 14Hose 3C0121051A
- 15Water Pipe 1K0121070R
- 16Radiator 1K0121212C
- 17Air Guide 1K0121333
- 18Hose 3C0121101A
- 19Coupl Piece 1K0122291BA
- 19Coupl Piece 1K0122291BB
- 20Hose 1K0121101CE
- 20Hose 1K0121101CD
- 21Hose 1K0121447CM
- 23Water Pipe 03G121065AA
- 24Seal Ring 06B121687
- 25Screw N90588201
- 26Bolt N0102279
- 27Hose 3C0121086L
- 28Hose 3C0121058AE
- 29Hose 1K0121086R
- 30Part 3C0121156AF
- 31Coupl Piece 1K0122291J
- 32Coupl Piece 1K0122291H
- 33Part 3C0121157AB
- 35Hose 1K0122447ED
- 36Tpiece N90693001
- 38Water Pipe 03G121151AC
- 39Bolt N10524202
- 42Hose 3C0122109E
- 43Bracket 1K0121093AQ
- 44Hose 3C0121447L
- 70Clamp N90686701
- 72Clamp N90686901
- 73Clamp N90687001
- 75Clamp N90687201
Diagrams & fitment data powered by oemdiagrams.com
3C0121157AA Audi EGR Coolant Hose | Genuine OEM is fitted on: GOLF 2003-2005; DIES.-IND.-MOT.1,9>2,0 1990-2007; DIES.-IND.-MOT.1,9>2,0 08> 2007-; CADDY 2004-; Jetta "USA"05> 2005-; GOLF PLUS 05> 2005-; Passat/4Motion 2005-2007; JETTA 06> 2005-; Golf/Rabbit 2005-2007; TOURAN 2005-2006; EOS-Cabriolet-Coupe 2006-; JETTA 06> 2006-; GOLF VARIANT 07> 2007-; TOURAN 2006-; Golf/Rabbit 08> 2007-; GOLF PLUS 08> 2007-; Passat/4Motion 08 2007-; caddy panel van 2008-2010; passat estate 2008-2011; Touran 1.9 2008-2010; jetta 2008-2011; ALTEA 2004-2006; TOLEDO 05> 2004-; LEON 06> 2005-; ALTEA 07> 2006-; Leon Stylance 2010-2012; Altea XL Reference 2010-2013; Audi A3/S3/quattro 2005-2007; Audi A3/S3/Sportb./qu. 08 2007-; Audi A3 Cab. 2.0 TDI 2007-2013; Audi A3 Sportback 2008-2013; OCTAVIA/COMBI/4X4 04> 2004-; superb comfort 2008-2013; octavia ambiente 2008-2013.
