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Product ID: 58947

Oil O-rings cylinder - head 4T 139FMB 154FMI - 58947

€2.04 including VAT

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New set of O-rings for the cylinder and head for mopeds with a 139FMB 4T gear motor

Manufacturer: Kengo
Manufacturer id: 58947
Guarantee: 12
General description
  • made of rubber resistant to petroleum derivatives
Dimensions
  • outer diameters: 18/15/12 mm
Manufacturer:

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

Fits to

Product reviews

4.89

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19 reviews

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  • 2025-09-01, 16:47

    poland

    tadeáš

    I used these sealing rings on my jawa betka /kentoya twinshot on 139FMB engine and I can not complain about the engine does not leak any oil and the material is better than the original.

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  • 2025-05-30, 17:15

    poland

    Andrzejczak

    Good size, fits correctly in the groove, no visible oil leakage, I actively recommend it.

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  • 2024-12-18, 23:41

    poland

    Łukasz

    Oringi spelniają swoje zadanie nie ma do czego się przyczepić. Dobre wykonanie oraz estetyka.

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  • 2022-02-28, 20:47

    poland

    Przemysław

    Hi, I have an atypical moped sachs madass with 139fmb engine ordered a set of cylinder + head 72 4T 139FMB the order itself with shipment went very smoothly, cylinder ok unfortunately the head was no longer 100% as it should be, mainly it's about the finish sharp edges with numerous flecks after treatment, in addition the casting probably from beer cans as for me the head itself is not worth anything better to put money and buy something better quality

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    Gmoto's reply If the product does not meet your expectations, you can easily return it. To do so, fill out the form available at https://gmoto.com/returns.
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  • 2021-01-11, 09:16

    poland

    Kacper

    The workmanship of the oil orings is really good. They fit in all places where they can be used.

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  • 2020-06-15, 15:56

    poland

    Przemysław

    Everything as positive as possible. Quality of materials as well as speed of shipping on the plus side. Certainly these are not my last purchases at Gmoto.pl

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  • 2020-05-02, 23:03

    poland

    Michał

    perform their function well, they fit well together , and lie well in the pupil, do not slip during installation like some which is very annoying at times

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  • 2019-08-18, 21:39

    poland

    Jakub

    oil orings very good job they hold up great where they belong I would recommend to anyone about to do a major overhaul of the 139fmb engine

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  • 2019-03-01, 19:03

    poland

    Łukasz

    Everything as described .Delivery price and speed very satisfactory .Fits exactly to the model for which it is dedicated

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  • 2018-04-10, 08:57

    poland

    Marcin

    Romet WS 50 vintage 2014 - the o-rings fit perfectly in their places. workmanship very good. when replacing the head we need 2 gaskets

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  • 2018-10-08, 15:55

    poland

    Aleksander

    junak 902, very good workmanship, perfect fit, 100% as described, installation went smoothly

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  • 2017-09-29, 07:22

    poland

    Remigiusz

    My bike is a Kinroad chopper XT50Q with a 139 FMB engine converted to 80 capacity. The assembly went ok.

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  • 2017-03-20, 17:39

    poland

    Zbigniew

    Everything in the best possible order -recommend.

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  • 2017-03-12, 13:23

    poland

    MAREK

    BARTON DAFIER 72cm 2011.I am satisfied.

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  • 2017-05-07, 17:17

    poland

    Łukasz

    perfectly fit made of good material

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  • 2017-02-12, 19:37

    poland

    WIESŁAW

    HIGHLY RECOMMENDED

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  • 2016-02-23, 20:01

    poland

    Mikołaj

    Romet Ogar 900 50ccm Everything as expected and without any problems even with shipping.

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  • 2016-06-06, 14:45

    poland

    Łukasz

    chopper kingway 50 well-fitting o-rings seal great made of good material

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  • 2016-08-29, 11:41

    poland

    Łukasz

    perfectly matched

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