19106-RNA-A48 Radiator Coolant Reservoir Overflow Tank Cap with Joint Replacement Fit for Honda Acura Accord Civic Pilot Insight Element

Ordered this after I was constantly losing coolant in my radiator, but the reservoir remained full. I kept having to fill the radiator, but the reservoir never went down. So it seemed there was a problem in the connection from the rubber hose to the reservoir.I was also seeing some bubbles around the rubber connector piece of the reservoir cap. My mechanic recommended I try to replace the cap and that ended up being the problem.Initially, I couldn’t pinpoint the issue. I tried replacing the radiator cap, still didn’t stop losing coolant. I also replaced the rubber hose since the old one had fallen down into the reservoir. Thought maybe the hose had lost its suction or something. My previous cap didn’t appear cracked and the new rubber hose had no clogs.Well, it wasn’t until I got this radiator cap and removed the old one completely that I was able to see the crack in my old one. It was a very thin hairline Crack in the connector piece, not the cap itself. The connector piece snapped completely in half as I pulled the rubber hose off the connector piece.Happy to say it’s been over a year now and I have had no issues. My radiator is full of coolant whenever I check it before starting the car for the day.Happy to have a cheap fix for something for once!