Search results

If you were ever to have a failure and inspected because the lines and/or fittings are not air brake DOT, You are opening up a can of worms. tubing for air brakes will say DOT fmvss sae J844 or whatever the current spec is. All tubing used to be black and now there are different colors for...

I am not familiar with that brand. Are those push lock air brake/dot as there are also push lock for other tubing? Normally they have stampings to id for dot inspection.

correct, they need the the insert. that insert is part of the sealing and to keep tube from crushing. Notice how the fittings are also stamped. Plumbing fittings will work in a bind but are not the right stuff.

Make sure to use DOT air brake fittings not plumbing fittings. They are stamped and the ferrules have an extra ridge in the middle.