Regulator, interior blower4B0 820 521

Audi, CUPRA, 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 price

€15.00

on Desguaces Becerril

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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.

Desguaces BecerrilLowest price

1 listing

Used

Checked 2026-10-30 03:56 UTCInternational delivery in 5 days

€15.00Cheapest listing: shipping not statedView on Desguaces Becerril

AUTODOC

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New

View on AUTODOC

Ovoko

1436 listings

Used

Checked 2026-10-24 03:55 UTC

€0.54 – €63.44Cheapest listing: + €14.74 shipping to Germanyestimated delivery in 5–9 daysView on Ovoko

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Aftermarket part numbers

Supplier articles whose catalogue lists 4B0 820 521. 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: 34793No. of Connections: 3Fitment conditions:for vehicles with air conditioning suitable for engine code: ACK, ALG, AMX, ANK, APR, AQD, AQJ, ARS, ASG
HELLA: 5HL 366 410-141Voltage: 12 V Number of pins: 3 -pin connector
MAGNETI MARELLI: 069415029010Voltage: 12 V
MAHLE: ABR 123 000SRated Voltage: 12 V Number of pins: 3 -pin connector Vehicle Equipment: for vehicles with air conditioning Packaging width: 5.5 cm Packaging length: 12.5 cm Net Weight: 168 g Packaging height: 9 cm
+4 moreShow fewer
METZGER AUTOTEILE: 0917020Number of pins: 3 -pin connector
VEMO: V10-79-0014Vehicle Equipment: for vehicles with air conditioning Number of pins: 3

Vehicle fitment

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

95 vehicles in 9 model series, inferred

Aftermarket parts that list 4B0 820 521 fit these vehicles according to their supplier catalogues. That does not prove 4B0 820 521 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 · 95 vehicles

Audi model series inferred from aftermarket parts
Model series	Production	Engine codes	HSN / TSN
A6 (4B) 1997–201224 vehicles	04/1997 – 01/2005	ACK, AEB, AFB, AFN, AFY, AGA, AGE, AJG, AJK, AJL, AJM, AJP, AKE, AKN, ALF, ALG, ALT, ALW, AML, AMM, AMX, ANB, APC, APR, APS, APU, APZ, AQD, AQE, AQG, ARH, ARJ, ARK, ARN, ASM, ASN, ATQ, ATX, AVF, AVG, AWT, AWX, AYM, BAU, BBJ, BCZ, BDG, BDH, BDV, BFC	0588 / 647, 648, 650, 651, 653, 655, 659, 669, 671, 695, 709, 725, 729, 755, 757, 759, 763, 768, 799
A6 (4B) Allroad quattro5 vehicles	05/2000 – 12/2005	AKE, ARE, BAS, BAU, BCZ, BDH, BES	0588 / 732, 736, 737, 795, 831
A6 (4B) Avant24 vehicles	04/1997 – 01/2005	ACK, AEB, AFB, AFN, AFY, AGA, AGE, AJG, AJK, AJL, AJM, AJP, AKE, AKN, ALF, ALG, ALT, ALW, AML, AMM, AMX, ANB, APC, APR, APS, APU, APZ, AQD, AQE, AQG, ARH, ARJ, ARK, ARN, ASM, ASN, ATX, AVF, AVG, AWT, AWX, AYM, BAU, BBJ, BCZ, BDG, BDH, BDV, BFC	0588 / 677, 678, 679, 680, 682, 684, 686, 688, 690, 694, 710, 726, 731, 756, 758, 761, 765, 770, 800
A6 (4B) Avant quattro18 vehicles	04/1997 – 01/2005	ACK, AEB, AFB, AGA, AGE, AJG, AJK, AJL, AKE, AKN, ALF, ALG, AML, AMX, ANB, APC, APR, APS, APU, APZ, AQD, AQG, ARE, ARJ, ARK, ARS, ASG, ASN, ATQ, ATX, AWT, AZA, BAU, BBJ, BDH, BDV, BES	0588 / 681, 683, 685, 687, 689, 691, 692, 706, 712, 732, 736, 737, 766, 771
A6 (4B) quattro19 vehicles	04/1997 – 01/2005	ACK, AEB, AFB, AGA, AGE, AJG, AJK, AJL, AKE, AKN, ALF, ALG, AML, AMX, ANB, APC, APR, APS, APU, APZ, AQD, AQG, ARE, ARJ, ARK, ARS, ART, ASG, ASN, ATQ, ATX, AVK, AWN, AWT, AZA, BAU, BBJ, BDH, BDV, BES	0588 / 649, 652, 654, 656, 660, 672, 693, 705, 711, 730, 764, 767, 769
RS6 (4B) Avant quattro2 vehicles	07/2002 – 09/2004	BCY, BRV	7967 / 309, 317
RS6 (4B) quattro1 vehicle	07/2002 – 09/2004	BCY	7967 / 308
S6 (4B) Avant quattro1 vehicle	09/1999 – 01/2005	ANK, AQJ, BBD	0588 / 708
S6 (4B) quattro1 vehicle	09/1999 – 07/2004	ANK, AQJ	0588 / 707