Alternator031 903 023

Audi 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.

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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

1 listing

New

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

€99.57Cheapest listing: RIDEX 4G0344+ €6.95 shipping to GermanyView on AUTODOC

OvokoLowest price

12 listings

Used

Checked 2026-10-28 02:04 UTC

€40.00 – €159.87Cheapest listing: + €20.40 shipping to Germanyestimated delivery in 6–8 daysView on Ovoko

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Aftermarket part numbers

Supplier articles whose catalogue lists 031 903 023. 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: 0986034990Length (unpacked): 161 mm Direction of rotation: Clockwise direction of rotation Rated voltage: 14 V Rated current: 65 A Position of fixing hole: left Width of single swivel arm: 56 mm Swivel arm hole: 10,5 Pulley diameter: 65 mm Number of grooves: 1 Pulley distance: 100 mm Supporting arm hole: M8 Position of supporting arm hole: right Angle supporting arm hole: 15 Type: Pot Fastening type: Single swivel arm Vacuum pump: excl. vacuum pump Belt pulley: With belt pulley Coupling clamp: B+(M8),D+(M5),W Angle of mounting hole: 15 °
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Fitment conditions:65 A Check/replace drive belt on alternator replacement. Without pulley Optional Installation period: 12/1988 – 08/1990, 08/1985, 11/1988, 12/1988, 11/1991, 02/1992, 10/1993 Bosch, only as replacement for Bosch equipment For Valeo unit Chassis number: 1L..ZD304 850, 31..N..160 000, 80..K..110 000, 80-K-110 001, 80..K..110 001, 80-NW280000, 80-NW280001 for Part no. 068 903 031 for Part no. 068 903 031 B
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VALEO: 436400Voltage: 14 V Alternator Charging Current: 65 A Fastening Type: Double Pivot Lever Position/Degree: R 15 ° Rotation Direction: Clockwise rotation Pulleys: with V-ribbed belt pulley Number of ribs: 1 Belt Pulley Ø: 65 mm Clamp: B+ / D+ Weight: 5.19 kg
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Fitment conditions:Engine Code: 1V, 1 W, 1W, 1X, 1Y, 2G, 3F, AAC, AAF, AAU, AAV, AAZ, CS, CY, GK, GL, GT, HA, HB, HH, HK, HZ, JK, JP, JR, KY, ME, MF, MH, MN, NZ, RA, SB Transmission Type: 3-Speed Automatic Transmission, 4-Speed Automatic Transmission, 4-Speed Manual Transmission, 5-Speed Manual Transmission Construction Year to: 07.1983, 11.1991, 12.1991, 07.1992, 12.1992, 12.1993, 07.1994, 09.1995, 06.1996, 12.1996, 04.1997, 06.2003 Construction Year from: 08.1982, 08.1984, 08.1986, 09.1990, 10.1990, 11.1992, 10.1993 Vehicle Identification Number (VIN) from: 1GMW.000.001, F32.D000.001, F32.F000.001, F32.G015.540, K110001, M-638 061 Vehicle Identification Number (VIN) to: 31 N 20000, F32.E300.000, F32.F299.999, F32.J299.999, ZD304850
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VEMO: V10-13-34990New part without deposit: Yes Voltage: 14 V Alternator Charge Current: 65 A New Part: Yes
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Vehicle fitment

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

142 vehicles in 40 model series, inferred

Aftermarket parts that list 031 903 023 fit these vehicles according to their supplier catalogues. That does not prove 031 903 023 itself fits every one: check the engine code, production dates and the supplier’s restrictions on the model series’ vehicle pages.

SEAT

4 model series · 9 vehicles

SEAT model series inferred from aftermarket parts
Model series	Production	Engine codes	HSN / TSN
Ibiza II (6K)2 vehicles	02/1993 – 06/1996	2G, AAU, AAV	7593 / 355, 356
Terra2 vehicles	03/1990 – 12/1994	Not listed	7593 / 505, 506
Terra (02)2 vehicles	03/1990 – 12/1995	1W, MN	7593 / 338, 344
Toledo I (1L)3 vehicles	1991 – ?	1Y, AAZ	7593 / 351, 352, 379

Volkswagen

36 model series · 133 vehicles

Volkswagen model series inferred from aftermarket parts
Model series	Production	Engine codes	HSN / TSN
California T41 vehicle	09/1990 – 12/1995	1X	Not listed
Caravelle T41 vehicle	10/1990 – 12/1995	1X	Not listed
Derby 2 (87)2 vehicles	10/1981 – 11/1984	GL, HB	0600 / 572, 574
Golf 1 (17)4 vehicles1 of them: some versions only	02/1974 – 12/1983	CR, CY, FA, FH, FK, GG, JB, JK	0600 / 464, 465, 497, 536, 557, 845, 846, 847, 850, 851, 852, 853
Golf 1 Cabrio (15)1 vehicle	08/1982 – 12/1992	DX, KT	0600 / 587
Golf 2 (19)12 vehicles1 of them: some versions only	08/1983 – 07/1990	2G, EV, EZ, EZA, GU, GX, GZ, HK, HV, HZ, JP, JR, ME, MF, MH, NZ, PB, PF, PN, RD, RF, RH, RP	0600 / 179, 181, 610, 612, 613, 614, 615, 649, 664, 694, 696, 698, 854, 856
Golf 2 (1G)13 vehicles	02/1986 – 12/1992	1V, 2G, EV, EZ, EZA, GU, HZ, JP, JR, ME, MF, NZ, PB, PF, PN, RA, RF, RH, RP, RV, SB	0600 / 179, 180, 181, 182, 610, 612, 613, 614, 615, 649, 664, 694, 696, 698, 728, 769, 854
Golf 2 syncro (19)1 vehicle	08/1985 – 07/1988	GU, GX	0600 / 669
Golf 2 syncro (1G)1 vehicle	08/1988 – 10/1991	GU	0600 / 669
Jetta 1 (16)4 vehicles	08/1978 – 02/1984	DX, EG, FR, JB, JJ	0600 / 521, 522, 548, 583
Jetta 2 (16)10 vehicles	08/1983 – 07/1992	2G, ABN, EV, EZ, GT, GU, GX, GZ, HK, HM, HV, JP, JR, ME, MF, MH, NZ, PB, PF, PN, RD, RF, RP	0600 / 624, 625, 626, 627, 629, 630, 665, 695, 697
Jetta 2 (1G)17 vehicles	01/1984 – 12/1992	1V, 2G, ABN, EV, EZ, EZA, GU, GZ, HM, HT, HV, JP, JR, ME, MF, MH, NZ, PB, PF, PN, RA, RF, RG, RH, RP, RV, SB	0600 / 624, 625, 626, 627, 629, 630, 665, 695, 697, 699, 729, 770
Jetta 2 syncro (16)1 vehicle	08/1987 – 07/1989	GU, GX	0600 / 727
Jetta 2 syncro (1G)1 vehicle	08/1985 – 07/1991	GU, GX	Not listed
Passat 2 (32)2 vehicles	01/1981 – 03/1988	CR, CY, JK	0600 / 543, 559, 561, 567
Passat 2 Variant (33)1 vehicle	12/1981 – 03/1988	CY	0600 / 560
Passat 3 (31)4 vehicles	08/1988 – 10/1993	1Y, AAZ, RA, SB	0600 / 735, 766, 877
Passat 3 (3A)1 vehicle	10/1993 – 12/1996	AAZ	0600 / 877
Passat 3 Variant (31)4 vehicles	08/1988 – 10/1993	1Y, AAZ, RA, SB	0600 / 742, 767, 878
Passat 3 Variant (3A)1 vehicle	10/1993 – 12/1996	AAZ	0600 / 878
Polo2 vehicles	10/1989 – 03/1991	3F	Not listed
Polo 1 (86)1 vehicle	09/1975 – 09/1981	HA	0600 / 471, 569
Polo 2 (80)6 vehicles2 of them: some versions only	10/1981 – 09/1994	1W, 2G, 3F, AAK, AAU, AAV, ACM, GK, GL, HZ, MH, MN, NZ	0600 / 568, 572, 580, 599, 600, 661, 663, 689, 690, 841, 842
Polo 2 (86)6 vehicles	10/1981 – 10/1986	GK, GL, HB, HH, HK, HZ	0600 / 568, 570, 571, 580, 599, 661
Polo 2 (87)2 vehicles1 of them: some versions only	10/1981 – 12/1988	GL, HK, MH	0600 / 568, 572, 600
Polo 2 Coupe (80)7 vehicles	08/1985 – 09/1994	1W, 2G, 3F, AAK, AAU, AAV, ACM, GK, GL, HZ, MH, MN, NZ, PY	0600 / 576, 579, 601, 662, 691, 719, 773, 843
Polo 2 Coupe (87)8 vehicles	10/1981 – 09/1990	3F, GK, GL, HB, HH, HK, HZ, MH, PY	0600 / 576, 577, 578, 579, 601, 662, 719
Polo 2 Van (81)3 vehicles	01/1991 – 08/1994	1W, AAU, AAV	0600 / 241, 242, 243
Scirocco 1 (53)1 vehicle	06/1976 – 07/1982	EG	0600 / 485
Scirocco 2 (53)4 vehicles	04/1980 – 07/1992	DX, EG, FR, JB, JJ, KT	0600 / 554, 555, 556, 589
Transporter T3 (24)2 vehicles1 of them: some versions only	01/1981 – 07/1992	CS, KY	0600 / 093, 112, 117, 151, 157, 207, 209, 210, 217, 222, 531, 532, 533, 633, 637, 752, 776, 782, 788, 868
Transporter T3 (25)2 vehicles1 of them: some versions only	07/1979 – 07/1992	CS, KY	0600 / 091, 093, 112, 117, 151, 157, 207, 209, 210, 217, 222, 531, 532, 533, 633, 637, 752, 776, 782, 788, 868
Transporter T4 (70)3 vehicles1 of them: some versions only	09/1990 – 12/1995	1X, AAC, AAF, ACU, AEN	0600 / 197, 200, 201, 202, 205, 206, 224, 225, 830, 833, 834, 872, 875, 876, 884, 885, 889, 906, 929, 932, 933 0603 / 004, 005, 013, 014, 303, 304, 311, 312, 433, 441, 519
Transporter T4 (7D)2 vehicles1 of them: some versions only	01/1996 – 06/2003	AAC, AAF, ACU, AEN, AEU	0600 / 200, 201, 205, 206, 833, 834, 875, 876, 884, 885, 932, 933 0603 / 004, 005, 013, 014, 303, 304, 311, 312, 433, 441, 519
Transporter T4 syncro (70)1 vehicle	11/1992 – 10/1996	AAF, ACU, AEU	0600 / 238, 240, 918, 922, 935 0603 / 016, 018, 307, 315
Transporter T4 syncro (7D)1 vehicle	01/1996 – 04/2003	AAF, ACU, AEU	0600 / 238, 240, 918, 922, 935 0603 / 016, 018, 307, 315