OEM or Aftermarket

[CSM4runner]

So i just put a lift on my T4R and this was on top of the spring seat. My buddy said its a OEM dampener but i think its aftermarket since its held on with a brass/gold bolt. The truck is a 2016 trail edition 4wd. So is this OEM or aftermarket....Thanks for your help!

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[CSM4runner]

I've looked at tons of pics and parts ordering schematics and can't find that piece anywhere. I'm still guessing aftermarket although the original owner said he never touched the rear suspension. NO one knows?

 

[CSM4runner]

anybody?

 

[elguidoam]

After market. Not an expert. But rear springs have the black inner conical bump stop and that's it. Maybe better pictures? Is that the front? Details are bad. After market final answer