It’s the Volvo 240 OD valve. If you google it you’ll see it’s very similar to the one we have.
The old OD needs to be sliced into the wiring since it does not share the same plug.
https://www.ebay.com/itm/VOLVO-Auto-...cAAOSwEgVWR4Q0
And the Bypass plug to cancel out the Od
https://www.amazon.com/Overdrive-Sol.../dp/B00VET3N50