DASH COMPONENTS

Dash Components For Peterbilt Trucks

The Peterbilt cab dash puts critical gauges, switches, and controls within reach of the driver — and when a component fails, it can affect everything from monitoring engine health to operating HVAC and lighting systems. We carry replacement dash components for Peterbilt trucks including gauge clusters, switch panels, bezels, and individual switches compatible with Peterbilt 389, 579, 567, and other popular models.

Frequently asked questions about dash components

How do I know if a dash gauge is faulty versus the sensor it's reading?

A simple way to isolate the fault is to swap in a known-good gauge or check the signal at the sender with a multimeter. Most analog gauges in a Peterbilt receive a variable resistance signal from the sender — if the resistance at the sender is within spec but the gauge reads incorrectly, the gauge itself is likely the problem. Erratic or pegged gauge behavior often points to a wiring fault or bad ground rather than the gauge or sender.

Can I replace individual dash switches, or do I need to replace the entire panel?

In most cases, individual switches are replaceable without replacing the entire dash panel. Peterbilt uses modular rocker switch designs on many models, and individual switches can be sourced and swapped in a few minutes once the dash panel is accessible. If multiple switches in a section are failing, inspect the underlying wiring harness and connector for corrosion or heat damage before replacing components one at a time.

Are dash components model-year specific on Peterbilt trucks?

Yes — dash layouts and switch configurations changed significantly across Peterbilt generations. The 379/389 series has a very different dash architecture from the 579 or the newer 589. Even within the same model, option packages affect which switches and gauge positions are populated. Always reference your VIN and build sheet when ordering dash components to ensure compatibility.

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