VX leaking oil at VTEC solenoid

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Does anyone know if this is an easy to replace gasket at the VTEC solenoid(only 1 on the VX not 2)? My mechanic I use pointed out that the seal/gasket was allowing a good amount of oil loss over time. I tried looking on RockAuto but couldn't find anything related to the VTEC solenoid in order to find a replacement gasket and I can't quite find its location on the Majestic Honda site.

Any info would be appreciated. Thanks!