Thermostat, coolant03C121026S

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.

AUTODOC

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New

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Ovoko

56 listings

Used

Checked 2026-10-17 00:29 UTC

€4.99 – €74.00Cheapest listing: + €14.17 shipping to Germanyestimated delivery in 5–9 daysView on Ovoko

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Aftermarket part numbers

Supplier articles whose catalogue lists 03C121026S. Check the supplier’s own restrictions before ordering.

MAGNETI MARELLI: 352070980000replaced by MAGNETI MARELLI 352317003600352317004810
STELLOX: 23-40276-SX
VEMO: V15-99-2083

Vehicle fitment

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

56 vehicles in 34 model series, inferred

Aftermarket parts that list 03C121026S fit these vehicles according to their supplier catalogues. That does not prove 03C121026S itself fits every one: check the engine code, production dates and the supplier’s restrictions on the model series’ vehicle pages.

Audi

2 model series · 2 vehicles

Audi model series inferred from aftermarket parts
Model series	Production	Engine codes	HSN / TSN
A1 (8X) 2010–20181 vehicle	01/2011 – 04/2015	CAVG, CTHG	0588 / AOC
A1 (8X) Sportback1 vehicle	11/2011 – 04/2015	CAVG, CTHG	0588 / AOC, AUN

SEAT

4 model series · 8 vehicles

SEAT model series inferred from aftermarket parts
Model series	Production	Engine codes	HSN / TSN
Alhambra II (71) 2010–20221 vehicle	06/2010 – 04/2015	CAVA, CNWB, CTHA	7593 / AFG, AFJ
Ibiza IV (6J)2 vehicles	12/2008 – 05/2015	CAVF, CNUB, CPTA, CTHF, CTJB	7593 / ADX, AJN
Ibiza IV (6J) Sportcoupe3 vehicles	01/2009 – 05/2015	CAVE, CAVF, CNUB, CPTA, CTHE, CTHF, CTJB, CTJC	7593 / ADW, ADX, AJN
Ibiza IV (6J) ST2 vehicles	02/2012 – 05/2015	CAVF, CNUB, CPTA, CTHF, CTJB	7593 / AGR, AJO

Škoda

2 model series · 2 vehicles

Škoda model series inferred from aftermarket parts
Model series	Production	Engine codes	HSN / TSN
Fabia II RS1 vehicle	05/2010 – 11/2014	CAVE, CTHE	8004 / AKK
Fabia II RS Combi1 vehicle	05/2010 – 11/2014	CAVE, CTHE	8004 / AKL

Volkswagen

26 model series · 44 vehicles

Volkswagen model series inferred from aftermarket parts
Model series	Production	Engine codes	HSN / TSN
Beetle (5C) 2007–1 vehicle	10/2011 – 07/2016	CAVD, CNWA, CTHD, CTKA	0603 / BFJ
Beetle Cabrio (5C)1 vehicle	08/2011 – 07/2019	CAVD, CNWA, CTHD, CTKA	0603 / BIX
CC (35) 2010–2 vehicles1 of them: some versions only	11/2011 – 12/2016	CKMA, CTHD	0603 / BAV, BJS
Eos Cabrio (1F)1 vehicle	05/2008 – 08/2015	CAVD, CTHD	0603 / ANQ
Golf 5 (1K)2 vehicles	11/2005 – 11/2008	BLG, BMY	0603 / ADQ, AKE, ALW, AMA
Golf 5 Plus (5M)3 vehicles	03/2006 – 12/2008	BLG, BMY, CAVD, CTHD	0603 / AJY, AJZ, ANS, APC
Golf 5 Variant (1K)3 vehicles	05/2007 – 10/2008	BLG, BMY, CAVD	0603 / ALF, ALJ, ANX
Golf 6 (5K)1 vehicle	10/2008 – 11/2012	CAVD, CNWA, CTHD	0603 / ANY
Golf 6 Cabrio (51)1 vehicle	03/2011 – 05/2016	CAVD, CNWA, CTHD, CTKA	0603 / BEL
Golf 6 Plus (52)1 vehicle	01/2009 – 12/2013	CAVD, CNWA, CTHD	0603 / ANS, APC
Golf 6 Van (5K)1 vehicle	10/2008 – 11/2012	CAVD	0603 / AZI
Golf 6 Van (AJ)1 vehicle	07/2009 – 10/2012	CAVD	Not listed
Golf 6 Variant (AJ)1 vehicle	07/2009 – 07/2013	CAVD, CNWA, CTHD, CTKA	0603 / ANX
Jetta 5 (1K) 2004–3 vehicles	07/2006 – 10/2010	BLG, BMY, CAVD	0603 / AKG, AKI, ANW
Jetta 6 (16)3 vehicles1 of them: some versions only	04/2011 – 12/2017	CAVA, CAVD, CTHA, CTHD, CWLA, CZDA, CZTA, DGXA, DJXA, DSJA	0603 / BDY, BQL
Passat 5 (3C)1 vehicle	01/2009 – 11/2010	CDGA	0603 / API
Passat 6 (36)2 vehicles	09/2010 – 12/2014	CDGA, CKMA, CTHD	0603 / AXU, AXW, BCT, BCZ, BJX
Passat 6 Variant (36)2 vehicles	09/2010 – 12/2014	CDGA, CKMA, CTHD	0603 / AXV, AXX, BAS, BDF, BDL, BJY, BKE
Polo 5 (6R)3 vehicles2 of them: some versions only	03/2009 – 05/2014	CAVE, CGPA, CGPB, CTHE	0603 / APM, APN, ATJ, AXP, AXQ
Scirocco 3 (13)1 vehicle	05/2008 – 11/2017	CAVD, CNWA, CTHD, CTKA	0603 / ANM
Sharan 2 (7N1)1 vehicle1 of them: some versions only	05/2010 – 11/2015	CAVA, CTHA	0603 / ATO, ATP, AWM
Sharan 2 (7N2)1 vehicle	05/2015 – 11/2022	CZDA, DJKA	0603 / ATO, ATP, AWM
Tiguan 1 4motion (5N)2 vehicles	11/2007 – 07/2018	BWK, CAVA, CAVD, CTHA, CTHD	0603 / ALN, AMP, AWQ, AWR, BEH, BEI, BGI, BGJ
Tiguan 1 (5N) 2007–2 vehicles	05/2008 – 07/2018	BWK, CAVA, CAVD, CTHA, CTHD, CZDA	0603 / ANO, BEJ, BGH
Touran 1 (1T) 2003–20152 vehicles	02/2006 – 05/2015	BLG, BMY, CAVB, CAVC, CTHB, CTHC	0603 / AIG, AIH, AKY, AKZ, AWG, AWH, AZQ, AZR, AZS, AZT
Touran 1 Van (1T)2 vehicles	05/2010 – 05/2015	CAVB, CAVC, CTHB, CTHC	0603 / AWG, AWH