Thermostat, coolant1 721 004

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 aftermarket price

€13.60

plus €6.95 shipping to Germany, on AUTODOC

Compare 3 listings

Compare offers

What each marketplace’s search lists for this number, lowest price first, Ovoko last. Listings can include other parts that name it.

AUTODOC

3 listings

New

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

€13.60 – €18.15Cheapest listing: MEYLE 028 275 0003+ €6.95 shipping to GermanyView on AUTODOC

Ovoko

No listings

Used

Checked 2026-10-15 08:05 UTC

View on Ovoko

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Aftermarket part numbers

Supplier articles whose catalogue lists 1 721 004. Check the supplier’s own restrictions before ordering.

MEYLE: 028 271 0004Opening Temperature: 71 °C Supplementary Article/Supplementary Info: with gasket/seal028 275 0003Opening Temperature: 75 °C Supplementary Article/Supplementary Info: with gasket/seal028 288 0000Opening Temperature: 88 °C Supplementary Article/Supplementary Info: with gasket/seal028 292 0005Opening Temperature: 92 °C Supplementary Article/Supplementary Info: with gasket/seal
STELLOX: 23-40038-SXOpening Temperature: 88 °C

Vehicle fitment

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

54 vehicles in 8 model series, inferred

Aftermarket parts that list 1 721 004 fit these vehicles according to their supplier catalogues. That does not prove 1 721 004 itself fits every one: check the engine code, production dates and the supplier’s restrictions on the model series’ vehicle pages.

Alpina

1 model series · 1 vehicle

Alpina model series inferred from aftermarket parts
Model series	Production	Engine codes	HSN / TSN
B6 (E36)1 vehicle	01/1992 – 05/1994	M30B28C40	Not listed

BMW

7 model series · 53 vehicles

BMW model series inferred from aftermarket parts
Model series	Production	Engine codes	HSN / TSN
3 (E30)12 vehicles	09/1982 – 10/1994	18 4E A, 18 4E B, 18 4E Z, 18 4K A, 18 4S 1, M10, M40, M42	0005 / 427, 439, 470, 471, 482, 483, 485, 486, 487, 496, 501, 509, 511, 512, 513
3 (E36)17 vehicles1 of them: some versions only	09/1990 – 08/2001	M40, M50, M52	0005 / 504, 505, 506, 519, 520, 530, 531, 550, 551, 552, 555, 556, 557, 558, 559, 560, 562, 563, 577, 612
5 (E34)13 vehicles	06/1987 – 07/1996	20 6E E, 20 6K A, 25 6K 1, M20, M40, M43, M50	0005 / 472, 473, 490, 491, 492, 493, 515, 516, 521, 522, 533, 545
5 (E39)1 vehicle	01/1997 – 09/2000	M52	0005 / 604
M3 (E30)5 vehicles	09/1986 – 12/1991	S14	0575 / 302, 303, 305
M3 (E36)3 vehicles	10/1995 – 09/1999	S50	7909 / 306, 307, 308
Z3 (E36)2 vehicles	04/1997 – 10/2002	S50, S54	7909 / 310, 314