Radiator, engine cooling1K0 121 251 CS

Audi, SEAT, Škoda, and Volkswagen OE number, as listed in aftermarket supplier catalogues. Compare listings for this exact number, then confirm the part number and vehicle fitment before ordering.

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What each marketplace’s search lists for this number, lowest price first, Ovoko last. Listings can include other parts that name it.

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Used

Checked 2026-10-22 19:32 UTC

€73.00 – €107.00Cheapest listing: + €78.46 shipping to Germanyestimated delivery in 4–6 daysView on Ovoko

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Aftermarket part numbers

Supplier articles whose catalogue lists 1K0 121 251 CS. Check the supplier’s own restrictions before ordering. A fitment condition under a part number is one its supplier names for at least one of the vehicles the part is listed for, not for all of them: a vehicle’s page shows which apply to it.

BOSCH: 1986ED1064Fitment conditions:For vehicles with air conditioner Hot climates For vehicles with manual transmission For vehicles with automatic transmission For vehicles with automatic transmission, 6-speed for PR code 8Z6 for PR code 8Z9 For vehicles with automatic transmission, 7-speed For vehicles with heavy duty cooling
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STELLOX: 10-26428-SXCore Length: 650 mm Core Width: 439 mm Core Depth: 32 mmFitment conditions:Engine Code: BKC, BLG, BZB, CAWB, CBFA, CCTA, CCZA, CDAA
VEMO: V15-60-6036Core Width: 438 mm Core Depth: 32 mm Core Length: 650 mm
ZentParts: Z20081Core Length: 650 mm Core Width: 439 mm Core Depth: 32 mm

Vehicle fitment

Engine code and production dates decide fitment. Model name and year alone don’t.

130 vehicles in 50 model series, inferred

Aftermarket parts that list 1K0 121 251 CS fit these vehicles according to their supplier catalogues. That does not prove 1K0 121 251 CS itself fits every one: check the engine code, production dates and the supplier’s restrictions on the model series’ vehicle pages.

Audi

9 model series · 24 vehicles

Audi model series inferred from aftermarket parts
Model series	Production	Engine codes	HSN / TSN
A3 (8P) 2003–20133 vehicles	09/2004 – 08/2012	AXX, BWA, BYT, BZB, CAWB, CBFA, CCZA, CDAA	0588 / 860, ADO, AFT, AIB, AIH
A3 (8P) Cabrio3 vehicles	04/2008 – 05/2013	BZB, CAWB, CCZA, CDAA	8307 / AAX, AAY
A3 (8P) quattro2 vehicles	09/2004 – 08/2012	AXX, BPY, BWA, CCZA, CDAA	0588 / 857, ADP, AIC, AII
A3 (8P) Sportback4 vehicles	09/2004 – 12/2013	AXX, BPY, BWA, BYT, BZB, CAWB, CBFA, CCTA, CCZA, CDAA	0588 / 860, ADO, AFT, AIB, AIH
A3 (8P) Sportback quattro2 vehicles	06/2004 – 03/2013	AXX, BPY, BWA, CBFA, CCTA, CCZA, CDAA	0588 / 857, ADP, AIC, AII
TT (8J) Coupe3 vehicles	08/2006 – 01/2015	BPY, BWA, CCTA, CESA	8307 / AAR, ABM
TT (8J) Coupe quattro3 vehicles	06/2008 – 01/2015	CCTA, CCZA, CESA, CETA	8307 / ABC, ABO
TT (8J) Roadster2 vehicles	03/2007 – 06/2014	BPY, BWA, CCTA, CESA	8307 / AAS, ABN
TT (8J) Roadster quattro2 vehicles	06/2008 – 06/2014	CCTA, CCZA, CESA, CETA	8307 / ABD, ABP

SEAT

6 model series · 11 vehicles

SEAT model series inferred from aftermarket parts
Model series	Production	Engine codes	HSN / TSN
Altea (5P) 2004–20152 vehicles	01/2007 – 07/2015	BYT, BZB, CDAA	7593 / ADB, AHY
Altea Freetrack 4Drive (5P)1 vehicle	05/2009 – 07/2015	CCZB	7593 / AEK, AIF
Altea Freetrack (5P)1 vehicle	05/2009 – 07/2015	CCZB	7593 / AEJ
Altea XL (5P)2 vehicles	01/2007 – 08/2015	BYT, BZB, CDAA	7593 / ADB, AHY
Leon (1P)3 vehicles	07/2007 – 08/2013	BZB, CCZB, CDAA	7593 / ADD, AEL
Toledo III (5P)2 vehicles	01/2007 – 05/2009	BYT, BZB, CDAA	7593 / ADB

Škoda

11 model series · 21 vehicles

Škoda model series inferred from aftermarket parts
Model series	Production	Engine codes	HSN / TSN
Octavia II 2004–20132 vehicles	06/2007 – 06/2013	BZB, CDAA, CDAB	8004 / AFO, AKO
Octavia II Combi2 vehicles	06/2007 – 03/2013	BZB, CDAA, CDAB	8004 / AFP, AGS, AKP, AMH
Octavia II Combi 4x42 vehicles	11/2008 – 02/2013	CDAA, CDAB	8004 / AGQ, AGT, ALZ, AMI
Octavia II RS1 vehicle	10/2005 – 02/2013	BWA, CCZA	8004 / 411, ADS
Octavia II RS Combi1 vehicle	10/2005 – 02/2013	BWA, CCZA	8004 / 412, AEC
Octavia II Scout Combi 4x42 vehicles	11/2008 – 02/2013	CDAA, CDAB	8004 / AGQ, AGT, ALZ, AMI
Superb II 2008–3 vehicles	03/2008 – 05/2015	BZB, CCZA, CDAA, CDAB	8004 / AGE, AKM, ALQ, AMA
Superb II 4x42 vehicles	11/2008 – 05/2015	CDAA, CDAB	8004 / AGI, ALR, AME
Superb II Combi3 vehicles	03/2009 – 05/2015	CCZA, CDAA, CDAB	8004 / AIP, AJK, AKN, AKT, AMB, AMF
Superb II Combi 4x42 vehicles	03/2009 – 05/2015	CDAA, CDAB	8004 / AIS, AJL, AMC, AMG
Yeti 4x41 vehicle	11/2009 – 12/2017	CDAB	8004 / AHC, AMD

Volkswagen

24 model series · 74 vehicles

Volkswagen model series inferred from aftermarket parts
Model series	Production	Engine codes	HSN / TSN
Beetle (5C) 2007–1 vehicle	04/2011 – 07/2016	CBFA, CCTA, CCZA	0603 / BFK
Beetle Cabrio (5C)1 vehicle	12/2010 – 07/2016	CBFA, CCTA, CCZA	0603 / BIZ
Caddy 3 (2K)1 vehicle	02/2004 – 08/2010	BJB, BLS	0603 / 086, 087, AGB, AGG, AGK, ARU, AUE
Caddy 3 Maxi (2K)1 vehicle	11/2007 – 08/2010	BJB, BLS	0603 / 086, 087, AGB, AGG, AGK, ARU, AUE
CC (35) 2010–5 vehicles	11/2011 – 12/2016	BZB, CCZB, CDAA, CDAB, CKMA, CTHD	0603 / ANA, BAU, BAV, BJS
Eos Cabrio (1F)2 vehicles	05/2006 – 08/2015	BPY, BWA, CAWB, CBFA, CCTA, CCZA, CCZB	0603 / AAR, ARC
Golf 5 (1K)3 vehicles	08/2004 – 12/2009	AXX, BLG, BMY, BPY, BWA, CAWB, CBFA, CCTA	0603 / 764, ADF, ADQ, AKE, ALW, AMA, AMG
Golf 5 Plus (5M)2 vehicles	03/2006 – 06/2008	BLG, BMY	0603 / AJY, AJZ
Golf 5 Variant (1K)3 vehicles	05/2007 – 06/2009	BLG, BMY, BWA, CAWB, CCTA	0603 / ALF, ALJ, ALK
Golf 6 (5K)4 vehicles	03/2008 – 02/2014	CBFA, CCTA, CCZB, CDLG	0603 / APL, BEN
Golf 6 Cabrio (51)2 vehicles	11/2011 – 05/2016	CCZB, CDLA	0603 / BGS, BKI
Golf 6 Variant (AJ)1 vehicle	07/2009 – 07/2013	CCZA	Not listed
Jetta 5 (1K) 2004–3 vehicles	06/2005 – 12/2010	BLG, BMY, BPY, BWA, CAWB, CBFA, CCTA	0603 / 832, ACU, AKG, AKI
Jetta 6 (16)1 vehicle	10/2010 – 12/2017	CBFA, CCTA, CCZA	0603 / BDZ
Passat 5 (3C)5 vehicles	07/2005 – 12/2010	AXX, BPY, BWA, BZB, CAWB, CBFA, CCTA, CCZA, CDAA, CDAB, CDGA, CGYA	0603 / 817, AEZ, AMW, API
Passat 5 Variant (3C)4 vehicles	07/2005 – 12/2010	AXX, BPY, BWA, BZB, CAWB, CBFA, CCTA, CCZA, CDAA, CDAB, CDGA, CGYA	0603 / 818, AFL, AMY, APJ, AYT
Passat 6 (36)5 vehicles	08/2010 – 12/2014	CCZB, CDAA, CDAB, CDGA, CKMA, CTHD	0603 / AXU, AXW, AXY, AYA, BCR, BCS, BCT, BCZ, BJX
Passat 6 Alltrack (36)2 vehicles	01/2012 – 12/2014	CDAA, CDAB	0603 / BDE
Passat 6 Alltrack 4motion (36)1 vehicle	01/2012 – 12/2014	CCZB	0603 / BHW, BHX, BIR
Passat 6 Variant (36)5 vehicles1 of them: some versions only	08/2010 – 12/2015	CCZB, CDAA, CDAB, CDGA, CKMA, CTHD	0603 / AXV, AXX, AXZ, AYB, BAP, BAS, BDD, BDE, BDF, BDL, BJY, BKE
Passat CC (35) 2008–20136 vehicles	05/2008 – 12/2012	BZB, CAWB, CBFA, CCTA, CCZA, CCZB, CDAA, CDAB, CGYA, CKMA	0603 / ANA, ANT, BAU, BAV
Scirocco 3 (13)6 vehicles	05/2008 – 11/2017	CAWB, CCZB, CDLC, CDLK, CULA, CULC	0603 / ANN, ARD, ARF, BOY, BPA, BPB
Touran 1 (1T) 2003–20156 vehicles	02/2003 – 05/2015	AVQ, BKC, BLG, BLS, BMY, BRU, BXE, BXF, BXJ, CAVB, CAVC, CDGA, CTHB, CTHC	0603 / 693, 732, 765, ABJ, ABK, ABT, ABU, AIG, AIH, AKY, AKZ, APR, ASL, AWG, AWH, AZQ, AZR, AZS, AZT, BAA
Touran 1 Van (1T)4 vehicles	10/2003 – 05/2015	AVQ, CAVB, CAVC, CDGA, CTHB, CTHC	0603 / 693, AWG, AWH