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Thread: KYB Rz5122 vs 5121 difference and cross compatibility

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    Question KYB Rz5122 vs 5121 difference and cross compatibility

    Sorry for the noob question but I just could not find any information on this
    Is there a difference between the kyb rz5122 and rz5121 springs aside from 5122 is for the G4 and the other one for the hatch?

    Are they cross compatible?



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    Firstly, the "RZxxxx" numbers are listed in the Kayaba/KYB Asian branch catalogue only!
    Different KYB branches offer different products altogether.
    For example, KYB Europe has type RA5070 rear springs, they are supposed to be compatable to OEM 4140A467, that is for cars after 2015. Other European sources offer the same springs from various different makers for less than €40.-per pair.

    The KYB-Asian shock absorbers with part number 348083 are quote "fully unknown" inside the KYB European branch, and they do not have any shocks at all for our cars. They are also unable to sell any Asian KYB products through the European KYB branch.

    The KYB-Asia catalogue is easily downloadable.
    According to that, RZ5121 are for the hatchback from 2015 till today, and RZ5122 for the current sedan. I assume the sedan is a bit heavier in the rear, so much for compatability.
    Probably exchanging rear shocks from OEM to KYB would make a big difference to the rear bobbing up and down.
    Last edited by foama; 10-28-2019 at 06:07 PM.

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    bosbik (10-28-2019)

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    Thanks for that.. I was thinking if the sedan springs would fit the hatch and vice versa

    I have to find that catalog download.. I think my google skills are deteriorating.. ��

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    Quote Originally Posted by bosbik View Post
    Thanks for that.. I was thinking if the sedan springs would fit the hatch and vice versa

    I have to find that catalog download.. I think my google skills are deteriorating.. ��
    From "KYB_SHOCK_ABSORBERS_2018.pdf" (KYB ASIA)


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