Review on 🔧 ACDelco Professional 18M67 Brake Master Cylinder Assembly: Efficient and Reliable Brake Performance by Paul Hubbard

I should have looked closely when unpacking, but instead of the brass seats for the brake lines on display they connect to, this master cylinder has cones that appear to be cast and looked rather crude out. The rear line (for the front brakes) is sealed, but there was nothing I could do (loosen, then tighten - over and over again) to get the front attachment to seal. I reinstalled the old master cylinder, everything was sealed normally.