Model CUH-ZCT1. Released in November 2013 by Sony Computer Entertainment, this six-axis, 3.7 V lithium ion battery controller is uncomplicated to repair.

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Where to buy replacement silicone button pads?

Beneath L2/R2 is a silicone rubber part that, when the button is depressed, contacts the PCB. On my controller, the small cylindrical pad that contacts the PCB is slightly split. This prevents the L2/R2 from registering 100% when the button is fully depressed. Is this silicone rubber part available for purchase somewhere? I see lots of replacement buttons everywhere, but not this part.

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After a bit more searching, I think I found the answer to my own question. The name of the part is a bumper grommet. A site called has them at $5 a pair.

Bumper Grommets

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There are three variants of these grommets. Make sure you properly identify yours.


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Joseph Bruni will be eternally grateful.
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