Audi / Volkswagen Lower Coolant Reservoir Hose / Line 1K0121109AK
OEM Part #: 1K0-121-109-AK (1K0121109AK)
This page covers one exact OEM part number. Every unit we stocked has sold.
We may be able to get another
Used OEM parts are one-of-a-kind. We sometimes get another when we dismantle a matching vehicle, but we can’t say when — browse what’s in stock now:
Other Coolant Hose / Pipe / Line that may fit your vehicle
Auxiliary Coolant / Water Pump Hose
$6.49
Fits 2013–2018 Volkswagen Jetta
OEM: 5C0121063B
Auxiliary Pump Coolant Hose / Line
$29.49
Fits 2005–2013 Audi & Volkswagen
OEM: 1K0122063D
Coolant / Water Hose
Starting at $9.49
Fits 2012–2022 Audi & Volkswagen
OEM: 06K121051P
Coolant Flange / Adapter
Starting at $6.99
Fits 2006–2025 Audi & Volkswagen
OEM: N906929
Coolant Flange / Quick Adapter
$14.49
Fits 2012–2024 Audi & Volkswagen
OEM: 5Q0122291AB
Coolant Flange Distributor Hose
$29.99
Fits 2008–2014 Volkswagen
OEM: 1K0121087N
- Genuine OEM — real photos
- 30-day returns on eligible parts
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- Ships from our own indoor warehouse
This is a used OEM lower coolant reservoir hose, part number 1K0121109AK, also known as the coolant line from the expansion tank. It also replaces part 1KD121109A. This hose carries hot coolant from the reservoir to the engine block on 2.0L TDI diesel and 2.0L TSI/TFSI gas engines found in VW and Audi models. A cracked or leaking hose will cause a low coolant warning and potential overheating.
Specifications
| Fits Vehicle Model | A3, Beetle, CC, Eos, Golf R, GTI, Jetta, Passat |
| Fits Vehicle Make | Audi, Volkswagen |
| OEM Part No | 1K0-121-109-AK (1K0121109AK) |
| Compatible OEM Part No | 1KD-121-109-A |
| Category | Radiator / Coolant |
Compatible Vehicles
Fits 70 vehicle configurations across 2 makes, 2008-2017.
Check your specific vehicle before ordering.
This list shows year, make, and model. Some years have multiple trims or
engines that use different parts, and individual listings may have
additional fitment notes (e.g. “with sunroof only”). Review
the full variant list below, or
message us with your VIN
and we’ll confirm the match.
View all 70 vehicle configurations — 60 with fitment notes
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2008 | Audi | A3 | Hatchback | 2.0L l4 Turbo | For Vehicles with Engine Code(s) CBFA, CCTA |
| 2009 | Audi | A3 | Hatchback | 2.0L l4 Turbo | |
| 2009 | Audi | A3 | Quattro Hatchback | 2.0L l4 Turbo | |
| 2010 | Audi | A3 | Hatchback | 2.0L l4 Turbo | |
| 2010 | Audi | A3 | Quattro Hatchback | 2.0L l4 Turbo | |
| 2011 | Audi | A3 | Hatchback | 2.0L l4 Turbo | |
| 2011 | Audi | A3 | Quattro Hatchback | 2.0L l4 Turbo | |
| 2012 | Audi | A3 | Hatchback | 2.0L l4 Turbo | |
| 2012 | Audi | A3 | Quattro Hatchback | 2.0L l4 Turbo | |
| 2013 | Audi | A3 | Hatchback | 2.0L l4 Turbo | |
| 2013 | Audi | A3 | Quattro Hatchback | 2.0L l4 Turbo | |
| 2008 | Volkswagen | GTI | Hatchback | 2.0L l4 Turbo | For Vehicles with Engine Code(s) CBFA, CCTA |
| 2008 | Volkswagen | Jetta | Sedan | 2.0L l4 Turbo | For Vehicles with Production Date Between 04/01/08 and 10/31/10; For Vehicles with Engine Code(s) CBFA, CCTA |
| 2008 | Volkswagen | Passat | Sedan | 2.0L l4 Turbo | For Vehicles with Engine Code(s) CCTA |
| 2008 | Volkswagen | Passat | Wagon | 2.0L l4 Turbo | For Vehicles with Engine Code(s) CCTA |
| 2009 | Volkswagen | CC | Sedan | 2.0L l4 Turbo | For Vehicles with Engine Code(s) CAWB, CBFA, CCTA, CCZA, CCZB |
| 2009 | Volkswagen | Eos | Convertible | 2.0L l4 Turbo | For Vehicles with Engine Code(s) CBFA, CCTA |
| 2009 | Volkswagen | GTI | Hatchback | 2.0L l4 Turbo | For Vehicles with Engine Code(s) CBFA, CCTA |
| 2009 | Volkswagen | Jetta | Sedan | 2.0L l4 Turbo | For Vehicles with Production Date Between 04/01/08 and 10/31/10; For Vehicles with Engine Code(s) CBFA, CCTA |
| 2009 | Volkswagen | Jetta | Wagon | 2.0L l4 Turbo | For Vehicles with Production Date Between 04/01/08 and 10/31/10; For Vehicles with Engine Code(s) CBFA, CCTA |
| 2009 | Volkswagen | Jetta | Sedan | 2.0L l4 Diesel Turbo | For Vehicles with Production Date Between 04/01/08 and 10/31/10; For Vehicles with Engine Code(s) CBFA, CCTA |
| 2009 | Volkswagen | Jetta | Wagon | 2.0L l4 Diesel Turbo | For Vehicles with Production Date Between 04/01/08 and 10/31/10; For Vehicles with Engine Code(s) CBFA, CCTA |
| 2009 | Volkswagen | Passat | Sedan | 2.0L l4 Turbo | For Vehicles with Engine Code(s) CAWB, CBFA, CCTA |
| 2009 | Volkswagen | Passat | Wagon | 2.0L l4 Turbo | For Vehicles with Engine Code(s) CAWB, CBFA, CCTA |
| 2010 | Volkswagen | CC | Sedan | 2.0L l4 Turbo | For Vehicles with Engine Code(s) CAWB, CBFA, CCTA, CCZA, CCZB |
| 2010 | Volkswagen | Eos | Convertible | 2.0L l4 Turbo | For Vehicles with Engine Code(s) CBFA, CCTA |
| 2010 | Volkswagen | GTI | Hatchback | 2.0L l4 Turbo | For Vehicles with Engine Code(s) CBFA, CCTA, CCZB |
| 2010 | Volkswagen | Jetta | Sedan | 2.0L l4 Diesel Turbo | For Vehicles with Production Date Between 04/01/08 and 10/31/10; For Vehicles with Engine Code(s) CBFA, CCTA |
| 2010 | Volkswagen | Jetta | Wagon | 2.0L l4 Diesel Turbo | For Vehicles with Production Date Between 04/01/08 and 10/31/10; For Vehicles with Engine Code(s) CBFA, CCTA |
| 2010 | Volkswagen | Jetta | Sedan | 2.0L l4 Turbo | For Vehicles with Production Date Between 04/01/08 and 10/31/10; For Vehicles with Engine Code(s) CBFA, CCTA |
| 2010 | Volkswagen | Passat | Sedan | 2.0L l4 Turbo | For Vehicles with Engine Code(s) CAWB, CBFA, CCTA |
| 2010 | Volkswagen | Passat | Wagon | 2.0L l4 Turbo | For Vehicles with Engine Code(s) CAWB, CBFA, CCTA |
| 2011 | Volkswagen | CC | Sedan | 2.0L l4 Turbo | For Vehicles with Engine Code(s) CAWB, CBFA, CCTA, CCZA, CCZB |
| 2011 | Volkswagen | Eos | Convertible | 2.0L l4 Turbo | For Vehicles with Engine Code(s) CBFA, CCTA, CCZA, CCZB |
| 2011 | Volkswagen | GTI | Hatchback | 2.0L l4 Turbo | For Vehicles with Engine Code(s) CBFA, CCTA, CCZB |
| 2011 | Volkswagen | Jetta | Sedan | 2.0L l4 | For Vehicles with Engine Code(s) CBFA, CCTA, CCZA |
| 2011 | Volkswagen | Jetta | Wagon | 2.0L l4 | For Vehicles with Engine Code(s) CBFA, CCTA, CCZA |
| 2012 | Volkswagen | Beetle | Hatchback | 2.0L l4 Turbo | For Vehicles with Engine Code(s) CBFA, CCTA, CCZA |
| 2012 | Volkswagen | CC | Sedan | 2.0L l4 Turbo | For Vehicles with Engine Code(s) CAWB, CBFA, CCTA, CCZA, CCZB |
| 2012 | Volkswagen | Eos | Convertible | 2.0L l4 Turbo | For Vehicles with Engine Code(s) CBFA, CCTA, CCZA, CCZB |
| 2012 | Volkswagen | Golf R | Hatchback | 2.0L l4 Turbo | For Vehicles with Engine Code(s) CBFA, CCTA, CCZB |
| 2012 | Volkswagen | GTI | Hatchback | 2.0L l4 Turbo | For Vehicles with Engine Code(s) CBFA, CCTA, CCZB |
| 2012 | Volkswagen | Jetta | Sedan | 2.0L l4 Turbo | For Vehicles with Engine Code(s) CBFA, CCTA, CCZA |
| 2012 | Volkswagen | Jetta | Sedan | 2.0L l4 | For Vehicles with Engine Code(s) CBFA, CCTA, CCZA |
| 2012 | Volkswagen | Jetta | Wagon | 2.0L l4 | For Vehicles with Engine Code(s) CBFA, CCTA, CCZA |
| 2013 | Volkswagen | Beetle | Hatchback | 2.0L l4 Turbo | For Vehicles with Engine Code(s) CBFA, CCTA, CCZA |
| 2013 | Volkswagen | Beetle | Convertible | 2.0L l4 Turbo | For Vehicles with Engine Code(s) CBFA, CCTA, CCZA |
| 2013 | Volkswagen | CC | Sedan | 2.0L l4 Turbo | For Vehicles with Engine Code(s) CBFA, CCTA, CCZB |
| 2013 | Volkswagen | Eos | Convertible | 2.0L l4 Turbo | For Vehicles with Engine Code(s) CBFA, CCTA, CCZA, CCZB |
| 2013 | Volkswagen | Golf R | Hatchback | 2.0L l4 Turbo | For Vehicles with Engine Code(s) CBFA, CCTA, CCZB |
| 2013 | Volkswagen | GTI | Hatchback | 2.0L l4 Turbo | For Vehicles with Engine Code(s) CBFA, CCTA, CCZB |
| 2013 | Volkswagen | Jetta | Sedan | 2.0L l4 Turbo | For Vehicles with Engine Code(s) CBFA, CCTA, CCZA |
| 2013 | Volkswagen | Jetta | Sedan | 2.0L l4 | For Vehicles with Engine Code(s) CBFA, CCTA, CCZA |
| 2013 | Volkswagen | Jetta | Wagon | 2.0L l4 | For Vehicles with Engine Code(s) CBFA, CCTA, CCZA |
| 2014 | Volkswagen | Beetle | Hatchback | 2.0L l4 Turbo | For Vehicles with Engine Code(s) CBFA, CCTA, CCZA |
| 2014 | Volkswagen | Beetle | Convertible | 2.0L l4 Turbo | For Vehicles with Engine Code(s) CBFA, CCTA, CCZA |
| 2014 | Volkswagen | CC | Sedan | 2.0L l4 Turbo | For Vehicles with Engine Code(s) CBFA, CCTA, CCZB |
| 2014 | Volkswagen | Eos | Convertible | 2.0L l4 Turbo | For Vehicles with Engine Code(s) CBFA, CCTA, CCZA, CCZB |
| 2014 | Volkswagen | Jetta | Sedan | 2.0L l4 Turbo | For Vehicles with Engine Code(s) CBFA, CCTA, CCZA |
| 2014 | Volkswagen | Jetta | Sedan | 2.0L l4 | For Vehicles with Engine Code(s) CBFA, CCTA, CCZA |
| 2014 | Volkswagen | Jetta | Wagon | 2.0L l4 | For Vehicles with Engine Code(s) CBFA, CCTA, CCZA |
| 2015 | Volkswagen | Beetle | Convertible | 2.0L l4 Turbo | For Vehicles with Engine Code(s) CBFA, CCTA, CCZA |
| 2015 | Volkswagen | Beetle | Hatchback | 2.0L l4 Turbo | For Vehicles with Engine Code(s) CBFA, CCTA, CCZA |
| 2015 | Volkswagen | CC | Sedan | 2.0L l4 Turbo | For Vehicles with Engine Code(s) CBFA, CCTA, CCZB |
| 2015 | Volkswagen | Eos | Convertible | 2.0L l4 Turbo | For Vehicles with Engine Code(s) CBFA, CCTA, CCZA, CCZB |
| 2016 | Volkswagen | Beetle | Convertible | 2.0L l4 Turbo | For Vehicles with Engine Code(s) CBFA, CCTA, CCZA |
| 2016 | Volkswagen | Beetle | Hatchback | 2.0L l4 Turbo | For Vehicles with Engine Code(s) CBFA, CCTA, CCZA |
| 2016 | Volkswagen | CC | Sedan | 2.0L l4 Turbo | For Vehicles with Engine Code(s) CBFA, CCTA, CCZB |
| 2016 | Volkswagen | Eos | Convertible | 2.0L l4 Turbo | For Vehicles with Engine Code(s) CBFA, CCTA, CCZA, CCZB |
| 2017 | Volkswagen | CC | Sedan | 2.0L l4 Turbo | For Vehicles with Engine Code(s) CBFA, CCTA, CCZB |