802540E MV3 Dash Control Valve for Freightliner

802540E is an MV3 dash control valve used to control key air and brake functions from the cab on Freightliner vehicles. As an air brake control valve, it helps manage air flow for reliable braking and system operation. It’s designed for heavy-duty use to support safe, consistent performance on the road.

Check your current valve’s part number and match it to 802540E, and also verify any cross-references your truck uses for the MV3 dash control valve. Confirming the MPN on your existing unit is the quickest way to ensure fitment. If you’re unsure, compare the old truck dash air valve’s ports and mounting style before ordering.

Yes, a worn or failing MV3 dash control valve can contribute to inconsistent air delivery or brake control from the dash, and replacing it with 802540E may restore normal operation. However, similar symptoms can also come from air leaks, supply issues, or other components in the system. For best results, inspect the air lines and fittings and confirm the problem is isolated to the Freightliner dash control valve before replacement.