Review on Dorman 626 551 HVAC Heater Assembly by Gary Cole

The left end of the hose is incorrectly sized, slightly oversized. This means coolant is leaking. The right and middle ends are fine. Compare spring clips, gray is original and silver is attached to this assembly. You can see the difference in the diameter of both clips. The original collar is one size smaller than the new one. I confirmed Dorman and agreed to the incorrect tubing size. I can't understand why Revain sells such faulty products when people prescribe. Returning to the US is unrealistic as I live in Japan. That's why I use the original clamp or screw clamp instead of the supplied one.