Adams Rite New Style end cap for the 8700 and 8800. The black cap measures 2-3/8" high x 1-1/2" wide x 1-1/4" projection. We some times find the number 25-0674-01 cast in the black plastic.
The Adams Rite EL8600 Solenoid 31-0833-IP is used on their Concealed Vertical Rod. It uses 28 VDC. If your Solenoid is Red or White, then you would need the EL8800 Solenoid.
Adams Rite old Style end cap for the 8300 and 8600, with dogging in the head. Plastic Cap measures 2-5/16" high x 1-1/16" wide with a 1-1/4" projection.