#008, "Joint, Tube", Honda part number 19500-PE0-000 should be what you need. (I looked up a '97 as that's the year I have. '99 should be the same.)
Go to one of the Honda parts sites like Bernardi, and look it up there to verify what I've found. Pick your year, model, then choose the Engine / Water Pump - Sensor options and it should list those out for you, along with part number and cost. Since the list price is $9.05, it's cheapest to get one at a local dealer, since the $3 or so you save online is offset by a lot more in shipping fees.
https://www.bernardiparts.com/Honda/Parts-Car.aspx
Go to one of the Honda parts sites like Bernardi, and look it up there to verify what I've found. Pick your year, model, then choose the Engine / Water Pump - Sensor options and it should list those out for you, along with part number and cost. Since the list price is $9.05, it's cheapest to get one at a local dealer, since the $3 or so you save online is offset by a lot more in shipping fees.
https://www.bernardiparts.com/Honda/Parts-Car.aspx