Tractor protection valves protect the tractor's air supply if the trailer lines separate or trailer pressure drops, and control air delivery to the trailer supply and service lines. We list five:
- Predator HD TP-5 tractor protection valve, replaces Bendix 288605
- Bendix 065706 TP-3DC, and World American WA65706 (replaces Bendix 065706)
- Power Products 279000P TP-3, cross-referenced to KN34060
- PAI EM37140 tractor protection valve
TP-3, TP-3DC and TP-5 are different valves, so match the model and the number cast into the valve body rather than swapping types. The valve feeds the trailer supply (red) and service (blue) gladhands; see gladhand bulkheads, dash valves and the rest of our air brake valves.
