Temperature Switch, radiator fan1 378 073

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

€2.31

plus €14.17 shipping to Germany, on Ovoko

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

1 listing

New

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

€22.96Cheapest listing: RIDEX 1103T0023+ €6.95 shipping to GermanyView on AUTODOC

OvokoLowest price

2 listings

Used

Checked 2026-10-06 10:10 UTC

€2.31 – €11.50Cheapest listing: + €14.17 shipping to Germanyestimated delivery in 3–7 daysView on Ovoko

We may earn a commission through partner links. How we stay useful

Aftermarket part numbers

Supplier articles whose catalogue lists 1 378 073. 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.

HELLA: 6ZT 007 837-001Mounting Type: Bolted Switch point from: 86 °C Switch point to: 99 °C Voltage: 12 V Number of pins: 3 -pin connector Thread Size: M 14 x 1,5 Switch: with double thermal switch Switch Function: Dual Output Switch Function: Normally Open Contact Spanner Size: 24 Plug Type: Round Plug
+8 moreShow fewer
Fitment conditions:Engine Code: M 40, M 42, M 43, M 50, S38, S 38 B 36, S 38 B 38 Construction Year from: 08.1984, 09.1984, 09.1985, 08.1986, 09.1986, 09.1990, 09.1992 Construction Year to: 08.1981, 08.1982, 08.1984, 08.1990
MAHLE: TSW 73Thread Size: M14x1.5 Number of pins: 3 -pin connector Supplementary Article/Supplementary Info: without gasket/seal Switch-on point: 92 °C Switch-on point: 97 °C Shut-off Point: 85 °C Shut-off Point: 90 °C Net Weight: 59 g Packaging width: 6.7 cm Packaging length: 8.7 cm Packaging height: 9.2 cm Weight: 79 g
+9 moreShow fewer
Fitment conditions:Vehicle Equipment: for vehicles with air conditioning Construction Year to: 09.1995, 06.1996
VALEO: 820220Switch point to: 85 °C Shut-off Point: 93 °C Switch point from: 90 °C Switch Point: 98 °C Weight: 0.06 kg
+2 moreShow fewer
Fitment conditions:Vehicle Equipment: for vehicles with air conditioning Construction Year to: 08.1987, 08.1988, 11.1988, 12.1988, 06.1989, 09.1989, 03.1990, 06.1990, 07.1990, 08.1990, 12.1990, 01.1991, 03.1991, 05.1991, 06.1991, 12.1991, 12.1992, 01.1993, 04.1993, 09.1993, 03.1994, 05.1994, 08.1994, 06.1995, 07.1995, 08.1995, 09.1995, 07.1996, 09.1996, 05.1997, 02.1998, 02.2000, 06.2000 Construction Year from: 02.1985, 09.1985, 02.1986, 09.1986, 10.1986, 09.1987, 01.1988, 02.1988, 06.1988, 09.1988, 11.1989, 12.1990, 10.1991, 09.1992, 10.1992, 10.1993, 12.1994, 06.1995, 01.1996, 07.1996
VEMO: V20-99-1252Number of pins: 3 Thread Size: M14x1,5 Switch Point: 85, 97 °C Switch point from: 97 °C Switch point to: 85 °C
+2 moreShow fewer

Vehicle fitment

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

154 vehicles in 17 model series, inferred

Aftermarket parts that list 1 378 073 fit these vehicles according to their supplier catalogues. That does not prove 1 378 073 itself fits every one: check the engine code, production dates and the supplier’s restrictions on the model series’ vehicle pages.

BMW

17 model series · 154 vehicles

BMW model series inferred from aftermarket parts
Model series	Production	Engine codes	HSN / TSN
3 (E21)1 vehicle	06/1975 – 12/1978	Not listed	Not listed
3 (E30)34 vehicles	09/1982 – 10/1994	18 4E A, 18 4E B, 18 4E Z, 18 4K A, 18 4S 1, 18 4V D, 20 4E A, 20 6E B, 20 6E Z, 24 6D A, 24 6D B, 25 6E 1, 25 6E 2, M10, M20, M21, M40, M42, S14	0005 / 426, 427, 428, 438, 439, 447, 448, 449, 452, 453, 454, 459, 460, 461, 462, 469, 470, 471, 477, 479, 480, 481, 482, 483, 485, 486, 487, 496, 500, 501, 502, 509, 511, 512, 513
3 (E36)34 vehicles3 of them: some versions only	09/1990 – 08/2001	25 6T 1, M40, M41, M42, M43, M44, M50, M51, M52	0005 / 495, 503, 504, 505, 506, 507, 508, 517, 518, 519, 520, 530, 531, 535, 536, 537, 538, 540, 541, 547, 550, 551, 552, 554, 555, 556, 557, 558, 559, 560, 561, 562, 563, 565, 573, 574, 575, 576, 577, 578, 579, 580, 581, 582, 612, 617, 621
51 vehicle	11/1995 – 07/1996	18 4E 2	Not listed
5 (E28)5 vehicles	06/1981 – 01/1988	20 6E A, 20 6E B, 20 6E C, 20 6E Z, 25 6E A, M20, M30	0005 / 419, 421, 422, 441, 442, 450
5 (E34)24 vehicles	06/1987 – 09/1996	20 6E E, 20 6K A, 24 6T B, 25 6K 1, 30 6K A, M20, M21, M30, M40, M43, M50, M51, M60	0005 / 472, 473, 474, 475, 476, 490, 491, 492, 493, 514, 515, 516, 521, 522, 523, 526, 527, 528, 533, 534, 539, 545
6 (E24)3 vehicles	08/1979 – 10/1989	M30	0005 / 411, 424, 445, 468
7 (E23)9 vehicles2 of them: some versions only	10/1976 – 08/1986	32 6T A, 34 6E A, 34 6E C, 34 6T A, M30	0005 / 397, 398, 399, 412, 413, 414, 432, 443, 444
7 (E32)13 vehicles	09/1982 – 12/1994	30 8S 1, 40 8S 1, 50 12 A, M30, M60, M70	0005 / 456, 457, 463, 465, 466, 524, 525
8 (E31)5 vehicles	01/1990 – 06/1999	40 8S 1, 44 8S 1, 50 12 A, 54 12 1, 56 12 1, M60, M62, M70, M73, S70	0005 / 494, 532, 553, 588 0575 / 309 7909 / 301
M3 (E30)8 vehicles	09/1986 – 12/1991	25 4S 1, S14, S14B23	0575 / 302, 303, 305
M3 (E36)6 vehicles	11/1992 – 09/1999	S50	0575 / 308 7909 / 300, 303, 305, 306, 307
M5 (E12)1 vehicle	08/1980 – 05/1981	M30	0005 / 415
M5 (E28)2 vehicles	07/1984 – 12/1987	M30, S38	0005 / 436
M5 (E34)3 vehicles	09/1988 – 07/1995	S38	0575 / 304, 306, 307 7909 / 302, 304
M6 (E24)2 vehicles	03/1984 – 05/1989	S38	0005 / 434, 464
Z3 (E36)3 vehicles	10/1995 – 05/2000	M43, M44, M52	0005 / 586, 587, 614, 646