Expansion Tank, coolant1C0121407F

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.

Lowest aftermarket price

€16.06

plus €6.95 shipping to Germany, on AUTODOC

Compare 17 listings

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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.

AUTODOCLowest price

4 listings

New

Checked 2026-05-15 13:53 UTCAftermarket parts whose suppliers list this OE number, not the original part.

€16.06 – €21.38Cheapest listing: RIDEX 397E0008+ €6.95 shipping to GermanyView on AUTODOC

Ovoko

13 listings

Used

Checked 2026-10-21 08:15 UTC

€9.66 – €39.60Cheapest listing: + €16.42 shipping to Germanyestimated delivery in 5–7 daysView on Ovoko

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Aftermarket part numbers

Supplier articles whose catalogue lists 1C0121407F. 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.

FEBI: 37324Additional Information / Parts: with coolant level sensor Additional Information / Parts: without lid No. of Connections: 2Fitment conditions:suitable for engine code: AEG, AEH, AGR, AGU, AHW, AKL, APF, APK, APP, AQY, ARZ, ATN, AUM, AUQ, AXP, AZD, AZG, AZH, AZJ, BCA, BCB, BFH, BML
HELLA: 8MA 366 366-121Material: Plastic Supplementary Article/Supplementary Info 2: with cover Supplementary Article/Supplementary Info: with coolant level sensor
MAHLE: CRT 112 000SLength: 184 mm Width: 172 mm Height: 184 mm Material: Plastic Colour: white Supplementary Article/Supplementary Info: with coolant level sensor Additionally required article (article number): CRB 135 000S Supplementary Article/Supplementary Info 2: without cover Packaging height: 16.5 cm Packaging length: 18.5 cm Packaging width: 18.5 cm Net Weight: 324 g
+9 moreShow fewer
METZGER AUTOTEILE: 2140007Supplementary Article/Supplementary Info 2: without cover Supplementary Article/Supplementary Info: with coolant level sensor article number of recommended accessories: 21400602140136Supplementary Article/Supplementary Info 2: without cover article number of recommended accessories: 2140060 Supplementary Article/Supplementary Info: without coolant level sensor
VAICO: V10-0557Supplementary Article/Info 2: without cover Supplementary Article/Supplementary Info: with coolant level sensor Replaces the article: V10-9612

Vehicle fitment

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

275 vehicles in 38 model series, inferred

Aftermarket parts that list 1C0121407F fit these vehicles according to their supplier catalogues. That does not prove 1C0121407F itself fits every one: check the engine code, production dates and the supplier’s restrictions on the model series’ vehicle pages.

Audi

7 model series · 31 vehicles

Audi model series inferred from aftermarket parts
Model series	Production	Engine codes	HSN / TSN
A3 (8L) 1996–20069 vehicles	09/1996 – 09/2006	AEH, AGN, AGR, AGU, AHF, AJQ, AKL, ALH, APF, APG, APP, AQA, ARY, ARZ, ASV, ASZ, ATD, AUM, AUQ, AVU, AXR, BAH, BFQ	0588 / 637, 638, 639, 640, 641, 702, 740, 742, 743
A3 (8L) quattro3 vehicles	08/1997 – 06/2003	AGU, AJQ, AQA, ARX, ARY, ASZ	0588 / 701, 703, 741
S3 (8L) quattro2 vehicles	11/1998 – 06/2003	AMK, APY, AUL, BAM	0588 / 704, 790
TT (8N) Coupe4 vehicles	10/1998 – 07/2006	AJQ, APP, ATC, AUM, AUQ, AWP, BVP, BVR	8307 / 300, 309, 313, 314, AAB, AAC, AAF, AAG
TT (8N) Coupe quattro5 vehicles	10/1998 – 01/2007	AJQ, APX, ARY, ATC, AUQ, BAM, BEA, BFV, BHE, BPF, BVR	7967 / 320 8307 / 301, 302, 310, 312, AAA, AAD, AAE, AAH
TT (8N) Roadster4 vehicles	04/1999 – 12/2006	AJQ, APP, ATC, AUM, AUQ, AWP, BVP, BVR	8307 / 303, 306, 316, 317, AAJ, AAK, AAN, AAO
TT (8N) Roadster quattro4 vehicles	10/1998 – 12/2006	AJQ, APX, ARY, AUQ, BAM, BEA, BHE, BVR	8307 / 304, 305, 311, 315, AAI, AAL, AAM, AAP

SEAT

5 model series · 32 vehicles

SEAT model series inferred from aftermarket parts
Model series	Production	Engine codes	HSN / TSN
Cordoba (6K) 1993–1 vehicle	07/1999 – 09/2002	AQX, AYP	7593 / 461
Ibiza II (6K)1 vehicle	12/1999 – 05/2002	AQX, AYP	7593 / 462
Leon (1M) 1998–200615 vehicles	10/1998 – 06/2006	AEH, AGN, AGR, AHF, AHW, AKL, ALH, AMK, APE, APG, APP, AQM, ARL, ASV, ASZ, AUQ, AUS, AXP, AXR, AZD, BAM, BCA, BCB, BDE, BFQ	7593 / 008, 009, 474, 475, 476, 477, 478, 479, 480, 488, 497, 510, ABI, ABJ, ABK, ABL, ABM, ABN, ABO, ABP, ABQ
Leon (1M) 4x43 vehicles	03/2000 – 06/2006	AJQ, ARL, ARY, AUE, BDE	7593 / 001, 002, 483
Toledo II (1M)12 vehicles	10/1998 – 10/2005	AEH, AGN, AGR, AGZ, AHF, AHW, AKL, ALH, APE, APG, APP, AQN, ARL, ARY, ASV, ASZ, AUE, AUQ, AUS, AXP, AZD, BCA, BCB	7593 / 003, 439, 440, 441, 442, 444, 445, 487, 496, 498, 511, ABB, ABC, ABD, ABE, ABF, ABG, ABH

Škoda

8 model series · 45 vehicles

Škoda model series inferred from aftermarket parts
Model series	Production	Engine codes	HSN / TSN
Octavia I 1996–201015 vehicles1 of them: some versions only	07/1996 – 12/2010	AEE, AEG, AEH, AGN, AGP, AGR, AGU, AHF, AKL, ALH, AMD, APK, AQM, AQY, ARX, ARZ, ASV, ASZ, AUM, AUQ, AVU, AXP, AXR, AZH, AZJ, BCA, BFQ	8004 / 318, 319, 320, 323, 324, 325, 333, 334, 336, 351, 353, 357, 388, AAA, AAJ, AAK, AAL, ABI, ABK, ABL, ABM, ABN, ABO, ABP, ABQ
Octavia I 4x41 vehicle	08/2000 – 05/2006	ARX	8004 / 367, ABJ
Octavia I Combi14 vehicles	07/1996 – 12/2010	AEE, AEG, AEH, AGN, AGP, AGR, AGU, AHF, AKL, ALH, APK, AQM, AQY, ARX, ARZ, ASV, ASZ, AUM, AUQ, AVU, AXP, AXR, AZH, AZJ, BCA, BFQ	8004 / 327, 328, 329, 330, 331, 332, 335, 337, 352, 354, 358, 389, AAB, AAL, AAN, AAO, AAQ, AAR, AAS, AAU, AAV, AAW, AAY, AAZ, ABB, ABC, ABD, ABE, ABG, ABH
Octavia I Combi 4x44 vehicles	10/1996 – 03/2010	AGR, ARX, ATD, AZH, AZJ	8004 / 338, 355, 356, 359, AAM, AAP, AAT, AAX, ABA, ABF
Octavia II 2004–20133 vehicles	11/2008 – 06/2013	CBZB, CDAB, CFHF, CLCA	8004 / AJN, AKO, ALX
Octavia II Combi5 vehicles	02/2004 – 03/2013	BCA, BKD, CBZB, CDAB, CFHC, CFHF, CLCA, CLCB	8004 / 405, 407, ADU, ADX, AEE, AEH, AJO, AJP, AKP, ALY, AMH, AMJ
Octavia II Combi 4x42 vehicles	02/2004 – 03/2013	BKD, CDAB, CFHC, CLCB	8004 / AFE, AHD, ALZ, AMI
Octavia II Scout Combi 4x41 vehicle	03/2009 – 05/2009	CDAB	8004 / ALZ, AMI

Volkswagen

18 model series · 167 vehicles

Volkswagen model series inferred from aftermarket parts
Model series	Production	Engine codes	HSN / TSN
Bora (1J) 1998–200518 vehicles	08/1998 – 05/2005	AEH, AGN, AGP, AGR, AGU, AGZ, AHF, AHW, AJM, AKL, AKQ, ALH, APE, APF, APK, AQM, AQN, AQY, ARL, ARX, ASV, ASZ, ATD, ATN, AUM, AUQ, AUS, AUY, AVH, AVU, AXP, AXR, AZD, AZG, AZH, AZJ, BAD, BCA, BCB, BFQ	0603 / 464, 465, 466, 467, 468, 469, 470, 478, 503, 548, 562, 574, 597, 601, 605, 635, 668, 673
Bora 4motion (1J)11 vehicles	09/1998 – 05/2005	AGN, AGR, AGZ, AJM, AQN, AQP, ARL, ASZ, ATD, AUE, AUY, AZH, AZJ, BDE	0603 / 500, 501, 502, 504, 528, 563, 575, 580, 598, 636
Bora (9M)3 vehicles	10/1998 – 12/2014	AEG, ALH, APK, AQY, AVH, AXR, AZG, BBW, BER, BEV, BEW, BHP, CBPA, CFEA	0603 / 467, 478, 562
Bora Variant (1J)16 vehicles	09/1998 – 06/2005	AEH, AGR, AGU, AGZ, AHF, AHW, AJM, AKL, AKQ, ALH, APE, APF, APK, AQN, AQY, ARL, ARX, ASV, ASZ, ATD, ATN, AUM, AUQ, AUS, AUY, AVU, AXP, AXR, AZD, AZG, AZJ, BAD, BCA, BCB, BFQ	0603 / 480, 481, 482, 483, 484, 485, 486, 550, 564, 595, 600, 604, 633, 647, 669, 674
Bora Variant 4motion (1J)10 vehicles	02/1999 – 06/2005	AGN, AGZ, AJM, AQN, AQP, ARL, ASZ, ATD, AUE, AUY, AZH, AZJ, BDE	0603 / 506, 508, 509, 529, 565, 581, 596, 634, 648
Golf 4 (1J)21 vehicles	10/1997 – 06/2006	AEG, AEH, AGN, AGP, AGR, AGU, AGZ, AHF, AHW, AJM, AKL, AKQ, ALH, APE, APF, APK, AQA, AQM, AQN, AQY, ARL, ARZ, ASV, ASZ, ATD, ATN, AUM, AUQ, AUS, AUY, AVU, AWD, AWW, AXP, AXR, AZD, AZG, AZJ, BAD, BCA, BCB, BEH, BFQ	0603 / 418, 419, 420, 421, 422, 423, 424, 425, 477, 493, 498, 547, 558, 572, 593, 603, 639, 649, 666
Golf 4 4motion (1J)12 vehicles	10/1997 – 06/2006	AGN, AGR, AGZ, AJM, AQN, AQP, ARL, ASZ, ATD, AUE, AUY, AZH, AZJ, BDE, BFH, BJS, BML	0603 / 461, 463, 497, 499, 530, 559, 573, 578, 594, 640, 682
Golf 4 (9B)6 vehicles	01/1999 – 02/2008	AEG, AEH, AGU, AKL, ALH, APF, APK, AQY, ARZ, AUM, AUQ, AVH, AWD, AWP, AWW, AZG, BAH, BEJ, BEK, BER, BEV, BHP	0603 / 420, 421, 424, 477, 649
Golf 4 Van (1J)8 vehicles	10/1997 – 06/2006	AGP, AGR, AHF, AHW, AJM, AKQ, ALH, APE, AQM, ASV, ASZ, ATD, ATN, AUS, AXP, AXR, AZD, BCA, BCB	0603 / 418, 420, 422, 487, 488, 489, 492, 549, 560, 637, 639
Golf 4 Van 4motion (1J)1 vehicle	01/2000 – 04/2001	AUY	Not listed
Golf 4 Variant (1J)19 vehicles	06/1997 – 06/2006	AEH, AGP, AGR, AGU, AGZ, AHF, AHW, AJM, AKL, AKQ, ALH, APE, APF, APK, AQM, AQN, AQY, ARL, ARZ, ASV, ASZ, ATD, ATN, AUM, AUQ, AUS, AUY, AVU, AXP, AXR, AZD, AZG, AZJ, BAD, BCA, BCB, BEH, BFQ	0603 / 487, 488, 489, 490, 491, 492, 493, 494, 549, 560, 591, 599, 602, 637, 645, 667
Golf 4 Variant 4motion (1J)11 vehicles	10/1997 – 06/2006	AGN, AGR, AGZ, AJM, AQN, AQP, ARL, ASZ, ATD, AUE, AUY, AZH, AZJ, BDE	0603 / 510, 511, 512, 513, 531, 561, 579, 592, 638, 646
Jetta 4 (1J)1 vehicle	08/1999 – 03/2006	APK, AZH, AZJ	0603 / 478
Jetta 4 (9M)3 vehicles	11/1998 – 12/2013	AEG, AFP, ALH, AVH, AZG, AZH, BBW, BER, BEV, BHP, CBPA	0603 / 467, 478
New Beetle (1C)11 vehicles	01/1998 – 12/2010	AEG, AGU, ALH, APH, APK, AQN, AQY, ATD, AVC, AVH, AWH, AWP, AWU, AWV, AXR, AYD, AZG, AZJ, BCA, BEJ, BER, BEV, BEW, BFS, BHP, BKF, BNU, BPR, BPS, BSW, CBPA	0603 / 471, 472, 542, 553, 586, 630, 631, 665, 810, AHU, AHV, AHW, AHX, AHY
New Beetle 4motion (9C)1 vehicle	07/2000 – 05/2001	AXJ	0603 / 641
New Beetle (9C) 1998–20078 vehicles	08/1998 – 12/2007	AEG, AGU, ALH, APH, APK, AQN, AQY, ATD, AVC, AVH, AWH, AWU, AWV, AXR, AYD, AZG, AZJ, BCA, BEJ, BER, BEV, BEW, BFS, BHP, BKF, CBPA	0603 / 471, 472, 542, 553, 586, 630, 631, 665, AHU, AHV, AHW, AHX
New Beetle Cabrio (1Y)7 vehicles	01/2001 – 10/2010	AWU, AWV, AXR, AZJ, BCA, BDC, BEV, BEW, BFS, BGD, BKF, BPR, BPS, BSW	0603 / 683, 684, 701, 715, 739, 811, AHZ, AIA, AIB, AIC, AID