Heat Exchanger, interior heating4B1819031

Audi 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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plus €15.30 shipping to Germany, on Ovoko

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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 2026-10-09 05:01 UTC

€13.80 – €45.97Cheapest listing: + €15.30 shipping to Germanyestimated delivery in 5–7 daysView on Ovoko

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Aftermarket part numbers

Supplier articles whose catalogue lists 4B1819031. 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: 1986AD7185Fitment conditions:For LHD vehicles For vehicles without auxiliary heater
MAHLE: AH 220 000SCooling Fin Material: Aluminium Radiator type: Brazed cooling fins Water Tank Material (radiator): Aluminium Core Length: 220 mm Core Width: 155 mm Core Depth: 32 mm Left-/right-hand drive vehicles: for left-hand drive vehicles Packaging width: 22 cm Packaging length: 29 cm Net Weight: 590 g Packaging height: 9 cm
+8 moreShow fewer
STELLOX: 10-35267-SXCore Length: 217 mm Core Width: 156 mm Core Depth: 36 mm
VALEO: 811530Core Width: 155 mm Core Length: 218 mm Core Depth: 32 mm Material: Aluminium Left-/right-hand drive vehicles: for left-hand drive vehicles Weight: 0.96 kg
+3 moreShow fewer
Fitment conditions:Vehicle Equipment: for vehicles without electr. auxiliary heater Vehicle Identification Number (VIN) from: 4B_X_025001 Vehicle Identification Number (VIN) to: 4B_X_025000
WALKER: WHE000056Core Length: 218 mm Core Width: 162 mm Core Depth: 32 mm Radiator type: Brazed cooling fins Net weight: 0.55 kg
+2 moreShow fewer
Fitment conditions:Vehicle Equipment: for vehicles with air conditioning, for vehicles without electr. auxiliary heater Vehicle Identification Number (VIN) to: 4B_X_025000 Construction Year from: 04.1997 Vehicle Identification Number (VIN) from: 4B_X_025001
+1 moreShow fewer

Vehicle fitment

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

92 vehicles in 11 model series, inferred

Aftermarket parts that list 4B1819031 fit these vehicles according to their supplier catalogues. That does not prove 4B1819031 itself fits every one: check the engine code, production dates and the supplier’s restrictions on the model series’ vehicle pages.

Audi

11 model series · 92 vehicles

Audi model series inferred from aftermarket parts
Model series	Production	Engine codes	HSN / TSN
A6 (4A) 1994–19981 vehicle	10/1995 – 10/1997	ACK	0588 / 614
A6 (4A) Avant1 vehicle	10/1995 – 10/1997	ACK	0588 / 615
A6 (4B) 1997–201223 vehicles	04/1997 – 01/2005	ACK, AEB, AFB, AFN, 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) Avant23 vehicles	04/1997 – 01/2005	ACK, AEB, AFB, AFN, 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 quattro17 vehicles	04/1997 – 01/2005	ACK, AEB, AFB, AGA, 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) quattro17 vehicles	04/1997 – 01/2005	ACK, AEB, AFB, AGA, 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, 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