Back to category
SEG Automotive

Starter Generator

  • Starter Generator
  • Starter Generator, Thumbnail 2
  • Starter Generator, Thumbnail 3
  • Starter Generator, Thumbnail 4
  • Starter Generator, Thumbnail 5
  • Starter Generator, Thumbnail 6

Product number: 2147123

Manufacturer number: 0127823058

EAN: 4064443044843

£ 755.62

Incl. VAT

Excl. £ 100.59 deposit-return fee
View product specifications

Free Shipping


  • checkmark Free 30 days exchanges
  • checkmark Any part, any car
  • checkmark Fast shipping: 2 days
  • checkmark Expert support

Ecommerce Europe Trustmark UPS

Customer service: +31 85 070 52 25

Ask your question at our product specialists.

Questions and answers.
Ask your question at our product specialists.

Fit guarantee, show parts suitable for your vehicle.

or .

  • Specifications


    Voltage [V]48
    Alternator Charge Current [A]210
    Belt Pulley Ø [mm]54
    Number of grooves8
    PulleysWith multi-belt pulley
    Number of mounting bores1
    Position / DegreeR91,4
    Rotation DirectionClockwise rotation
    Warranty2 years
    Number of Thread Bores2
    Length [mm]217
    New part with deposit

    Similar products of other manufacturers

    Manufacturer Manufacturer number Price
    CASCO CAS10H08GS
    CEVAM 41154
    FRIESEN 9092336
    Manufacturer Manufacturer number Price
    SEG AUTOMOTIVE 0127823058 (this product)
    SEG Automotive 0127823058
    SEG Automotive 0127823053-R
  • Applicability

    BMW
    3
    3 (G20, G80, G28) | 11.2018-03.2020 330 d Mild-Hybrid - 2993ccm, 286pk, 210kw - B57 D30 B, JA1
    3 (G20, G80, G28) | 11.2018-03.2020 330 d Mild-Hybrid xDrive - 2993ccm, 286pk, 210kw - B57 D30 B, JA1
    3 (G20, G80, G28) | 11.2018-03.2020 M340 d Mild-Hybrid xDrive - 2993ccm, 340pk, 250kw - B57 D30 B, JA1
    3 Touring
    3 Touring (G21, G81) | 07.2019-07.2024 330 d Mild-Hybrid - 2993ccm, 286pk, 210kw - B57 D30 B, JA1
    3 Touring (G21, G81) | 07.2019-07.2024 330 d Mild-Hybrid xDrive - 2993ccm, 286pk, 210kw - B57 D30 B, JA1
    3 Touring (G21, G81) | 07.2019-07.2024 M 340 d Mild-Hybrid xDrive - 2993ccm, 340pk, 250kw - B57 D30 B, JA1
    4 Convertible
    4 Convertible (G23, G83) | 11.2020-02.2024 430 d Mild-Hybrid - 2993ccm, 286pk, 210kw - B57 D30 B, JA1
    4 Convertible (G23, G83) | 11.2020-02.2024 M440 d Mild-Hybrid xDrive - 2993ccm, 340pk, 250kw - B57 D30 B, JA1
    4 Coupe
    4 Coupe (G22, G82) | 07.2020-02.2024 430 d Mild-Hybrid xDrive - 2993ccm, 286pk, 210kw - B57 D30 B, JA1
    4 Coupe (G22, G82) | 07.2020-02.2024 M440 d Mild-Hybrid xDrive - 2993ccm, 340pk, 250kw - B57 D30 B, JA1
    5
    5 (G30, F90) | 09.2016-06.2023 530 d Mild-Hybrid - 2993ccm, 249pk, 183kw - B57 D30 B, JA1
    5 (G30, F90) | 09.2016-06.2023 530 d Mild-Hybrid - 2993ccm, 286pk, 210kw - B57 D30 B, JA1
    5 (G30, F90) | 09.2016-06.2023 530 d Mild-Hybrid xDrive - 2993ccm, 249pk, 183kw - B57 D30 B, JA1
    5 (G30, F90) | 09.2016-06.2023 530 d Mild-Hybrid xDrive - 2993ccm, 286pk, 210kw - B57 D30 B, JA1
    5 (G30, F90) | 09.2016-06.2023 540 d Mild-Hybrid xDrive - 2993ccm, 340pk, 250kw - B57 D30 B, JA1
    5 Touring
    5 Touring (G31) | 03.2017-06.2020 530 d Mild-Hybrid - 2993ccm, 249pk, 183kw - B57 D30 B, JA1
    5 Touring (G31) | 03.2017-06.2020 530 d Mild-Hybrid - 2993ccm, 286pk, 210kw - B57 D30 B, JA1
    5 Touring (G31) | 03.2017-06.2020 530 d Mild-Hybrid xDrive - 2993ccm, 249pk, 183kw - B57 D30 B, JA1
    5 Touring (G31) | 03.2017-06.2020 530 d Mild-Hybrid xDrive - 2993ccm, 286pk, 210kw - B57 D30 B, JA1
    5 Touring (G31) | 03.2017-06.2020 540 d Mild-Hybrid xDrive - 2993ccm, 340pk, 250kw - B57 D30 B, JA1
    6 Gran
    6 Gran Turismo (G32) | 06.2017-06.2020 630 d Mild-Hybrid - 2993ccm, 211pk, 155kw - B57 D30 B, JA1
    6 Gran Turismo (G32) | 06.2017-06.2020 630 d Mild-Hybrid - 2993ccm, 286pk, 210kw - B57 D30 B, JA1
    6 Gran Turismo (G32) | 06.2017-06.2020 630 d Mild-Hybrid xDrive - 2993ccm, 286pk, 210kw - B57 D30 B, JA1
    6 Gran Turismo (G32) | 06.2017-06.2020 640 d Mild-Hybrid xDrive - 2993ccm, 340pk, 250kw - B57 D30 B, JA1
    7
    7 (G11, G12) | 07.2015-06.2022 730 d Mild-Hybrid xDrive - 2993ccm, 211pk, 155kw - B57 D30 B, JA1
    7 (G11, G12) | 07.2015-06.2022 730 d, Ld Mild-Hybrid - 2993ccm, 286pk, 210kw - B57 D30 B, JA1
    7 (G11, G12) | 07.2015-06.2022 730 d, Ld Mild-Hybrid xDrive - 2993ccm, 249pk, 183kw - B57 D30 B, JA1
    7 (G11, G12) | 07.2015-06.2022 730 d, Ld Mild-Hybrid xDrive - 2993ccm, 286pk, 210kw - B57 D30 B, JA1
    7 (G11, G12) | 07.2015-06.2022 740 d, Ld Mild-Hybrid xDrive - 2993ccm, 340pk, 250kw - B57 D30 B, JA1
    8 Convertible
    8 Convertible (G14, F91) | 11.2018-10.2020 840 d Mild-Hybrid xDrive - 2993ccm, 340pk, 250kw - B57 D30 B, JA1
    8 Coupe
    8 Coupe (G15, F92) | 07.2018-10.2020 840 d Mild-Hybrid xDrive - 2993ccm, 340pk, 250kw - B57 D30 B, JA1
    8 Gran
    8 Gran Coupe (G16, F93) | 07.2019-10.2020 840 d Mild-Hybrid xDrive - 2993ccm, 340pk, 250kw - B57 D30 B, JA1
    X3
    X3 (G01, F97, G08) | 08.2017-06.2020 xDrive 30 d Mild-Hybrid - 2993ccm, 249pk, 183kw - B57 D30 B, JA1
    X3 (G01, F97, G08) | 08.2017-06.2020 xDrive 30 d Mild-Hybrid - 2993ccm, 286pk, 210kw - B57 D30 B, JA1
    X4
    X4 (G02, F98) | 04.2018-06.2020 xDrive 30 d Mild-Hybrid - 2993ccm, 249pk, 183kw - B57 D30 B, JA1
    X4 (G02, F98) | 04.2018-06.2020 xDrive 30 d Mild-Hybrid - 2993ccm, 286pk, 210kw - B57 D30 B, JA1
    X4 (G02, F98) | 04.2018-06.2020 xDrive M40 d Mild-Hybrid - 2993ccm, 340pk, 250kw - B57 D30 B, JA1
    X5
    X5 (G05, F95) | 08.2018-03.2023 xDrive 30 d Mild-Hybrid - 2993ccm, 249pk, 183kw - B57 D30 B, JA1
    X5 (G05, F95) | 08.2018-03.2023 xDrive 30 d Mild-Hybrid - 2993ccm, 286pk, 210kw - B57 D30 B, JA1
    X5 (G05, F95) | 08.2018-03.2023 xDrive 40 d Mild-Hybrid - 2993ccm, 340pk, 250kw - B57 D30 B, JA1
    X6
    X6 (G06, F96) | 08.2019-03.2023 xDrive 30 d Mild-Hybrid - 2993ccm, 211pk, 155kw - B57 D30 B, JA1
    X6 (G06, F96) | 08.2019-03.2023 xDrive 30 d Mild-Hybrid - 2993ccm, 249pk, 183kw - B57 D30 B, JA1
    X6 (G06, F96) | 08.2019-03.2023 xDrive 30 d Mild-Hybrid - 2993ccm, 286pk, 210kw - B57 D30 B, JA1
    X6 (G06, F96) | 08.2019-03.2023 xDrive 40 d Mild-Hybrid - 2993ccm, 340pk, 250kw - B57 D30 B, JA1
    X7
    X7 (G07) | 03.2019-08.2020 xDrive 40 d Mild-Hybrid - 2993ccm, 211pk, 155kw - B57 D30 B, JA1
    X7 (G07) | 03.2019-08.2020 xDrive 40 d Mild-Hybrid - 2993ccm, 340pk, 250kw - B57 D30 B, JA1
  • Original part numbers

    12 31 8 490 539 BMW
    8490539 BMW
    9887825-01 BMW
    12318490433 BMW
    8598391-02 BMW
    8490433-01 BMW
    8490433 BMW
    12318490539 BMW
    9887825-02 BMW
    9887030-01 BMW
    8490439-01 BMW
    8598391-01 BMW
    9889127-01 BMW
    8490539-04 BMW
    849053904 BMW
    8490439-02 BMW
    8490439 BMW
    8490539-03 BMW
    12318490439 BMW
    8490539-01 BMW
  • Manufacturer

    SEG Automotive
  • Delivery time

    Expected delivery date:

    17-07-2026

  • This item is subject to a deposit-return fee. After returning the old part, the deposit-return fee will be fully refunded.

    How does this work?
    You return the old part – the part you have disassembled from your car - in the original packaging of the received new part. This ensures that the manufacturer has a clear and immediate understanding which product number it concerns. After the ability to recycle the part (see below for more information) has been checked and approved, the deposit-return fee will be refunded to the same bank account number. The bank account number from which the initial payment had been made.

    Which issues do I need to consider?
    The manufacturer will evaluate the part if it is applicable to recycling. Is the part broken or otherwise unrepairably damaged, by say a right angle grinder? The manufacturer will not be able to re-use the part and will reject reimbursement. In this case you can’t claim reclamation of the paid deposit-return fee. Naturally, Winparts will not reimburse the fee to you if the manufacturer rejects the old part. Processing time can take up to 2 weeks.

    I return the used part, will I receive a new one?
    Yes - the housing is often re-used, the part itself is completely new. You’ll have an improved original part with full warranty of the manufacturer. Of course you can count on it that the part meets all kind of rigorous quality checks.
Secure payment