Review on Motorcraft WR4110 Spark Plug Wire by Adam Rogers

I ordered these to replace the original spark plug wires on my RV. They appear to be of good quality and fit well, but it would be nice if they were numbered like the originals (and like the plug cords I've gotten from other manufacturers). I marked both ends with a marker because it's a van chassis so visibility in the engine bay is poor and I wanted to be able to identify each wire without tracing it back to the distributor. Also, the rubber tabs were gray on some wires and black on the others; there was no pattern in the coloring. Strange. Anyway, they went in well and the engine is running so well so far.