Sterling L-Series Truck Gauges & Switches

Frequently Asked Questions About Sterling L-Series Truck Gauges & Switches

Will these gauges and switches fit my specific Sterling L-Series model?

Sterling L-Series trucks (including the L7500, L8500, L9500, and L9513 models) were produced across several years with different dash configurations, so it's important to verify the gauge type, panel size, and switch style against your truck's year and trim before ordering. Checking your VIN or comparing the part number on your current gauge or switch to the listing details is the most reliable way to confirm a proper fit.

How do I know if I need to replace a gauge versus the sending unit or wiring?

A gauge that reads zero, stays pegged at max, or behaves erratically doesn't always mean the gauge itself is bad. Before replacing a gauge, it's worth testing the sending unit and checking the wiring harness and connectors for corrosion or loose pins, since these are common culprits that can mimic a failed gauge.

Are these gauges and switches OEM parts, aftermarket replacements, or take-offs?

Our inventory includes a mix of new aftermarket components and quality used take-off parts pulled from Sterling L-Series trucks. Each product listing specifies the condition and manufacturer origin, so you can choose based on your budget and whether you prefer factory-original hardware or a cost-effective aftermarket alternative.

What's involved in installing a replacement gauge or switch?

Most gauges and switches on the L-Series dash panel are accessible by removing the dash bezel or trim panel, disconnecting the wiring harness or vacuum line, and swapping in the new component before reversing the process. Always disconnect the battery before working on the dash to avoid electrical shorts, and take a photo of the wiring before disconnecting anything if you're not familiar with the layout.

Can I use a used or take-off switch even if it looks worn?

Cosmetic wear on a switch housing or knob typically doesn't affect electrical function, so a used switch can be a reliable and budget-friendly option as long as it tests properly. If you're concerned about appearance matching the rest of your dash, let us know and we can help you find a take-off part in better cosmetic condition when available.