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Product ID: 73813

Gearbox complete 4T engine ball bearings - 73813

£19.86 Excluding VAT

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New complete gearbox for Chinese mopeds with 139FMB 4T engine

Manufacturer: Kengo
Manufacturer id: 73813
Guarantee: 12
General description
  • 4 gears
  • mounted to crankcases with ball bearings
The set includes
  • camshaft
  • output shaft
  • intermediate shaft

Dimensions:
1. Output shaft:

- diameter for output sprocket: 17 mm,
- support diameter in the crankcase: 12 mm,
- shaft length: 116 mm,
2. Intermediate shaft:
- support diameter in the crankcase: 12 mm,
- diameter for clutch basket: 17 mm,
3. Camshaft:
- support diameter: 13 mm,
- shaft length: 94 mm,
- drum diameter: 34 mm.

Manufacturer:

Gmoto.pl Paweł Cebulak, Tadeusza Kościuszki 78, 37-100, Łańcut, PL, [email protected]

Fits to

Product reviews

5

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11 reviews

star 5
star 4
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star 1
  • 2025-03-17, 10:05

    poland

    Victor

    Quite good protected in the package and the performance of my engine quite happy even though it has the gears reversed so it is better and very happy with the performance.

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  • 2025-05-10, 14:11

    poland

    Paweł

    Części wysokiej jakości .ładnie pasuję że sobie szybka wysyłka ładnie zapakowane.polecam gmoto.pl ..

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  • 2025-06-23, 04:52

    poland

    Porumb

    In produs calitattiv bun si de durata lunga sunteti cei mai buni depe gmoto imi iau tote piesele la cross.

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  • 2024-06-02, 13:06

    poland

    Adam

    Super product works flawlessly everything fits as it is written in the description only you need to pay attention that the box has at the very top neutral and down 4 gears

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  • 2024-10-21, 14:47

    poland

    Piotr

    Case as described very highly recommended on other sites I could not match and on Gmoto I matched right away I recommend

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  • 2024-09-23, 12:51

    poland

    Kulcsár Mónika

    Nagyon megvagyok elégedve! A termék pont jó pszzol a motorhoz. Esztétikailag is megfeleő. Jó minőség

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  • 2022-09-15, 09:05

    poland

    dawid

    X-moto 125 XB 27 2019 very belt transmission works well I recommend the air filter also holds up well I recommend.

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  • 2021-07-26, 09:27

    poland

    Michał

    Super everything fits recommend.

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  • 2019-07-09, 08:14

    poland

    Maciej

    My motorcycle is a 2011 zumico gr 200 4t 50 the installation went fast and easy everything runs smoothly and does not jam very good product

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  • 2018-05-23, 15:29

    poland

    Adam

    Zipp pro 50 vintage 2013 Very easy and fun to install on 139FMB engine. Transmission that meets my expectations 10/10 Regards

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  • 2016-05-28, 08:42

    poland

    Bartosz

    Yamasaki 4t 50 thanks to fast shipping I can already ride thanks

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