Thermostat, coolant03C 121 121 C

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.

AUTODOC

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Ovoko

48 listings

Used

Checked 2026-10-17 00:32 UTC

€3.14 – €47.00Cheapest 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 03C 121 121 C. Check the supplier’s own restrictions before ordering.

MAGNETI MARELLI: 352060987000replaced by MAGNETI MARELLI 352317003470 replaces MAGNETI MARELLI 352060985000352317004840
METZGER AUTOTEILE: 4010433Fitting position: Thermostat
STELLOX: 23-40153-SX
VAICO: V10-3541
VEMO: V15-99-2082

Vehicle fitment

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

95 vehicles in 35 model series, inferred

Aftermarket parts that list 03C 121 121 C fit these vehicles according to their supplier catalogues. That does not prove 03C 121 121 C 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
A3 (8P) 2003–20131 vehicle	08/2003 – 09/2007	BAG, BLF, BLP	0588 / 841, ADW
A3 (8P) Sportback1 vehicle	09/2004 – 09/2007	BAG, BLF, BLP	0588 / 841, ADW

Renault

6 model series · 33 vehicles

Renault model series inferred from aftermarket parts
Model series	Production	Engine codes	HSN / TSN
Master II Pro T352 vehicles	05/2004 – 04/2010	ZD3	3333 / 097, 098
Master II Pro T551 vehicle	05/2004 – 04/2010	ZD3	3333 / 098
Master II Pro T652 vehicles	05/2004 – 04/2010	ZD3	3333 / 097, 098
Megane I 1995–201118 vehicles2 of them: some versions only	01/1995 – 03/2008	E7J 624, E7J 764, F3R, F3R 750, F3R 751, F3R 752, F3R 791, F3R 796, F3R 797, F3R 798, F4P 722, F7R 710, F7R 714, F8Q, F8Q 620, F8Q 622, F8Q 624, F8Q 784, F8Q 786, F9Q 730, F9Q 731, F9Q 732, F9Q 733, F9Q 734, F9Q 736, F9Q 738, F9Q 744, K4J 714, K4J 750, K4M 700, K4M 701, K4M 704, K4M 706, K4M 708, K4M 709, K4M 712, K7M 702, K7M 703, K7M 720, K7M 790	3004 / 113, 126, 145, 580, 587, 588, 737, 738, 740, 750, 751, 752, 788, 789
Megane I Cabriolet3 vehicles	03/1999 – 08/2003	K4J 714, K4J 750, K4M 700, K4M 701, K4M 708, K4M 709	3004 / 591, 592
Megane III CC7 vehicles1 of them: some versions only	11/2008 – 06/2016	F4R 872, F9Q 870, H5F 404, K4M 858, K4M 866, K9K 836, K9K 837, M4R 711, M4R 713, M9R 610	3333 / AWA, AWB, AWC, AWI, AWJ, AWK, AYH, BBI

SEAT

6 model series · 13 vehicles

SEAT model series inferred from aftermarket parts
Model series	Production	Engine codes	HSN / TSN
Cordoba (6L)2 vehicles	10/2002 – 11/2009	AZQ, BME, BXV	7593 / 014, ACJ, ACW
Ibiza III (6L)3 vehicles	01/2002 – 11/2009	AZQ, BBM, BME, BXV	7593 / 007, ABW, ACU, ADG
Ibiza IV (6J)3 vehicles	03/2008 – 05/2015	BZG, CGPA, CGPB, CJLB	7593 / ADN, AEF
Ibiza IV (6J) Sportcoupe2 vehicles	04/2008 – 05/2015	BZG, CGPA, CGPB, CJLB	7593 / ADN, AEF
Ibiza IV (6J) ST2 vehicles	05/2010 – 05/2015	BZG, CGPA, CGPB, CJLB	7593 / AET, AFB
Toledo IV (KG)1 vehicle	07/2012 – 06/2015	CGPC	7593 / AGV, AHE

Škoda

11 model series · 24 vehicles

Škoda model series inferred from aftermarket parts
Model series	Production	Engine codes	HSN / TSN
Fabia I 1999–20082 vehicles	07/2001 – 12/2007	AWY, AZQ, BMD, BME	8004 / 062, 376, 383, 384, 386, ABY, ABZ, ADC, ADD, AEM
Fabia I Combi3 vehicles	07/2001 – 12/2007	AWY, AZQ, BMD, BME, BUD	8004 / 385, 387, ACI, ACJ, ACS, ACT, AET, AFC
Fabia II 2006–20145 vehicles	12/2006 – 12/2014	BBM, BZG, CEVA, CGPA, CGPB, CHFA, CHTA	8004 / AFG, AFH
Fabia II Combi4 vehicles	01/2007 – 11/2014	BBM, BZG, CEVA, CGPA, CGPB, CHFA, CHTA	8004 / AFW, AGC, AHL, AHR, ALC
Fabia I Praktik2 vehicles	07/2001 – 12/2007	AWY, AZQ, BMD, BME	8004 / 062, AEM
Octavia II 2004–20131 vehicle	02/2004 – 10/2008	BLF	8004 / 397, ADP
Octavia II Combi1 vehicle	02/2004 – 10/2008	BLF	8004 / 406, ADY, AEI
Rapid1 vehicle	07/2012 – 06/2015	CGPC	8004 / AMS, ANB
Rapid Spaceback2 vehicles	07/2012 – 06/2015	CGPC	8004 / AOA
Roomster2 vehicles	05/2006 – 05/2015	BME, BZG, CGPA	8004 / AEW, AFF, AHR, ALB
Roomster Praktik1 vehicle	03/2007 – 05/2015	BZG, CGPA	8004 / AFS, AHR, ALB

Volkswagen

10 model series · 23 vehicles

Volkswagen model series inferred from aftermarket parts
Model series	Production	Engine codes	HSN / TSN
Eos Cabrio (1F)1 vehicle	05/2006 – 05/2008	BLF	0603 / AJX
Fox (5Z) 2003–20212 vehicles	04/2005 – 12/2011	BMD, CHFA, CHFB	0603 / 783, AAT, AZB
Golf 5 (1K)2 vehicles	10/2003 – 12/2008	BAG, BKG, BLF, BLN, BLP	0603 / 722, 736, ADO, ADP, ALV
Golf 5 Plus (5M)2 vehicles	12/2004 – 10/2008	BLF, BLN	0603 / 780, 806, ADA, ADB
Jetta 5 (1K) 2004–1 vehicle	09/2005 – 06/2008	BLF	0603 / 831, ACR
Passat 5 (3C)1 vehicle	03/2005 – 05/2008	BLF	0603 / 772, AER
Passat 5 Variant (3C)1 vehicle	05/2005 – 06/2008	BLF	0603 / 801, AFD
Polo 4 (9N)7 vehicles	11/2001 – 11/2009	AWY, AXU, AZQ, BBM, BMD, BME, BUD, BZG	0603 / 652, 655, 659, AAY, ABA, ABD, AKC, ALL, ALM
Polo 5 (6R)2 vehicles	03/2009 – 05/2014	CGPA, CGPB	0603 / APM, APN, AXP, AXQ
Touran 1 (1T) 2003–20154 vehicles2 of them: some versions only	02/2003 – 05/2010	BAG, BGU, BLF, BLP, BSE, BSF	0603 / 695, 702, ABH, ABI, ABN, ABO, ASK