Are knocklink sensors compatible between models?

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Are knocklink sensors compatible between models?

Hi, my 2000 Legacy (Liberty here in Australia) GX wagon is throwing code 22 which I believe is the knocklink sensor.

What I'm wondering is the knocklink sensor interchangerble between models? As I have a couple spare, one from a 97 WRX, another from a 94 RS, and another from a 90 GX Legacy.

Thanks