the black finish seen on US OEM parts is EDP, the black finish on "offshore" repro parts might be anything except EDP, as fixit says, pretty easy to tell the difference, and if it's EDP, leave it be
"When we tug a single thing in nature, we find it attached to the rest of the world" ~ John Muir "When we tug a single thing on an old truck, we find it falls off" ~ me Some TF series details & TF heater pics
