Expansion Tank, coolant7 573 781

BMW 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

€9.60

plus €17.00 shipping to Germany, on Ovoko

Compare 67 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.

AUTODOC

5 listings

New

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

€41.79 – €55.60Cheapest listing: RIDEX 397E0173+ €6.95 shipping to GermanyView on AUTODOC

OvokoLowest price

62 listings

Used

Checked 2026-10-25 09:19 UTC

€9.60 – €101.00Cheapest listing: + €17.00 shipping to Germanyestimated delivery in 4–8 daysView on Ovoko

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Aftermarket part numbers

Supplier articles whose catalogue lists 7 573 781. Check the supplier’s own restrictions before ordering.

HELLA: 8MA 366 365-361Material: Plastic Supplementary Article/Supplementary Info 2: with cover Supplementary Article/Supplementary Info: with coolant level sensor
MAHLE: CRT 116 000SLength: 289 mm Width: 77 mm Height: 98 mm Material: Plastic Colour: black Supplementary Article/Supplementary Info: with coolant level sensor Additionally required article (article number): CRB 22 000P Supplementary Article/Supplementary Info 2: without cover Packaging height: 14 cm Packaging width: 15 cm Packaging length: 37.5 cm Net Weight: 868 g Weight: 1,000 g
+10 moreShow fewer
replaces MAHLE CRT 2 000S
MEYLE: 314 223 0000Supplementary Article/Supplementary Info 2: without cover article number of recommended accessories: 314 800 9004
VAICO: V20-0578Supplementary Article/Supplementary Info: with coolant level sensor Replaces the article: V20-1215, V20-0578-1

Vehicle fitment

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

77 vehicles in 6 model series, inferred

Aftermarket parts that list 7 573 781 fit these vehicles according to their supplier catalogues. That does not prove 7 573 781 itself fits every one: check the engine code, production dates and the supplier’s restrictions on the model series’ vehicle pages.

BMW

6 model series · 77 vehicles

BMW model series inferred from aftermarket parts
Model series	Production	Engine codes	HSN / TSN
3 (E46)59 vehicles2 of them: some versions only	12/1997 – 12/2007	30 6S 3, M47, M47N, M52, M54, N40, N42, N45, N46, N46 B20A, N46 B20C	0005 / 623, 624, 625, 626, 627, 637, 638, 639, 643, 649, 655, 659, 660, 666, 675, 676, 680, 681, 682, 683, 684, 685, 698, 699, 700, 701, 702, 703, 704, 705, 706, 707, 708, 709, 710, 711, 716, 717, 721, 725, 726, 727, 728, 729, 730, 731, 733, 734, 735, 736, 741, 742, 743, 754, 755, 766, 767, 831, 832, AEG, AEH, AEI, AEJ, AEL, AEN, AEO, AEQ, AER, AES, AEU, AEW, AEX
X3 (E83) 2003–20093 vehicles	09/2003 – 08/2006	M54, N46	0005 / 787, 789, 851, AGS, AKL
X3 (E83) LCI6 vehicles	08/2006 – 09/2010	N46, N52, N52N	0005 / 851, AFA, AFB, AFT, AGS, AKL, AKM, AKN, AKR
X5 (E53)1 vehicle	04/2000 – 10/2006	M54	0005 / 678
Z4 (E85)7 vehicles	09/2002 – 02/2009	M54, N46, N52	0005 / 757, 758, 790, 819, AAA, AAB, AAC, AAT
Z4 (E86)1 vehicle	04/2006 – 08/2008	N52	0005 / AAF