This relay valve is built for heavy-duty air brake systems on Mack and Navistar trucks, sold individually as a one-each replacement. Mounted near the brake chambers rather than at the treadle valve, it applies and releases air on demand, cutting the lag that comes with routing air all the way back to the treadle valve. It's a straightforward swap for trucks specifying the original Mack or Navistar valve.
Features
Relay valve, part number LRV-3507 or LRV3507
Cross-references Mack OEM numbers 745-103010 and 745-103834
Cross-references Navistar OEM number 1677540C91
Sold individually, 1 EACH sell pack
Designed for heavy-duty air brake systems
