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Number 21 marks the part’s position in the exploded view.
Product overview
Genuine OEM Audi Exhaust Gas Cooler Coolant Hose, part number 3C0121157AB. This specialized hose is responsible for circulating coolant to and from the exhaust gas cooler, playing a critical role in managing exhaust temperatures and supporting the emissions control system. Its specific bent shape ensures correct routing within the engine bay. Constructed from robust, heat-resistant black rubber, it weighs 0.053 kg and measures approximately 0.13 meters in length. Using a genuine OEM hose guarantees the precise fit, material integrity, and resistance to thermal stress required for the demanding environment of the exhaust gas cooling system.
Technical details
- Category
- Engine Cooling
- Country of origin
- Hungary
- Customs (HS) code
- 40093100
- Manufacturer
- Audi
- Product Type
- Genuine new auto parts
- Shipping size (L × W × H)
- 13 × 7 × 3.5 cm
- Shipping weight
- 0.05 kg
Parts diagram & fitment
24 vehiclesCoolant Hose — locate 3C0121157AB Audi Exhaust Gas Cooler Coolant Hose | OEM in the official exploded view and explore the surrounding assembly.
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
- 34Hose 3C0121157AA
- 35Hose 1K0122447ED
- 36Tpiece N90693001
- 38Water Pipe 03G121151AC
- 39Bolt N10524202
- 42Hose 3C0122109E
- 43Bracket 1K0121093AQ
- 44Hose 3C0121447L
- 70Clamp N90686701
- 72Clamp N90686901
- 73Clamp N90687001
- 75Clamp N90687201
Compatible / alternative parts(1)
Diagrams & fitment data powered by oemdiagrams.com
3C0121157AB Audi Exhaust Gas Cooler Coolant Hose | OEM is fitted on: GOLF 2003-2005; CADDY 2004-; 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; OCTAVIA/COMBI/4X4 04> 2004-; superb comfort 2008-2013; octavia ambiente 2008-2013; Audi A3/S3/quattro 2005-2007; Audi A3/S3/Sportb./qu. 08 2007-; Audi A3 Sportback 2008-2013.
